NSAI-Cert

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Reade rs a re adv i sed to check t ha t t h i s Ce r t i f i ca te has no t been w i t hd raw n o r supe rseded by a l a te r i s sue by con tac t i ngNSAI Ag rm en t , NSAI , San t r y , Dub l i n 9 o r on l i ne a t h t t p :/ / w w w . n sa i. ie / m o d u le s/ c er t i f ic at e s/ u p lo ad s/ p d f/ I A B 0 90 3 4 1 .p d f

I RI SH AGRMENT BOARDCERTI FI CATE NO. 09/ 03 41PW Thermal Building Solutions Ltd.,Jamestown Road, Inchicore, Dublin 8.T: 00353 1 420 1771E: [email protected]

CI/SfB 21.9 Rn7 (M2)

Po w e rw a l l Ex t e rn a l W a ll I n su lat i o n Sys t e m sSys tm e d i so l a t i on pou r m u rs ex t r i eu rs

W r m e d m m u n g f r A u e n - w a n d

N SA I A g r m e n t ( I r i s h A g r m e n t B o a r d ) is designated by Government to issue European Technical Approvals.

NSAI Agrment Certificates establish proof that the certified products are p ro p e r ma te r ia l s suitable for their intendeduse under Irish site conditions, and in accordance with the Bu i ld in g R eg u la t io n s 1 9 9 7 t o 2 0 0 8 .

Movement joints;PRODUCT DESCRI PTI ON: Provision for limiting cold bridging at external

wall/floor junctions in compliance withAcceptable Construction Details published bythe DoEHLG;

This Certificate relates to the following Powerwall

External Wall Insulation Systems: Powerwall System 1 (Detail Sheet 1) Powerwall System 2 (Detail Sheet 2)

Provision for fire stopping at externalcompartment walls and floors.

Powerwall System 3 (Detail Sheet 3)

These ETIC systems are each comprised of: Surface preparation of masonry or concrete

substrate;PW Thermal Building Solutions Ltd are responsiblefor the design, supply and installation of thesystem, and for the integration of the design of thesystem into the building. The system is designedby PW Thermal Building Solutions Ltd on a projectspecific basis in accordance with an approveddesign process. The installation of each system is

carried out by installers who have been trained byPW Thermal Building Solutions Ltd, and areapproved by PW Thermal Building Solutions Ltdand NSAI Agrment to install the system.

Full system beads and render-only beads; Insulation board (standard white EPS, carbon-

enhanced grey EPS, mineral wool, PIR); Cement-based undercoat incorporating an

alkali resistant fibreglass mesh;

Decorative finish coat; Mechanical fixings; Weather-tight joints;

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Ce r t i f i ca t e N o . 0 9 / 0 3 4 1 / P ow e r w a l l Ex t e r n a l W a l l I n s u l at i o n S y st e m s

This Certificate certifies compliance with therequirements of the Building Regulations 1997 to2008.

This Certificate is a confirmation of BBACertificate No. 93/2928 and 95/3090 issued bythe British Board of Agrment, PO Box 195,Bucknalls Lane, Garston, Watford WD25 9BA.

USE:The systems are for use as external insulation forrefurbishment/retrofit of new/existing masonry orconcrete buildings, up to a maximum of sixstoreys (18 metres) in height in purpose groups1(a), 1(b), 1(c), 2(a), 2(b), 3, 4(a) and 4 asdefined in TGD to Part B of the BuildingRegulations 1997 to 2008. The systems have notbeen assessed for use with timber frame or steelframe construction.

MAN UFACTURE, DESI GN AND MARKETI NG:The product is manufactured by:

Powerwall Systems Ltd.,4 Netherton Road,Wishaw,Lanarkshire ML2 0EQ.

The product system is designed and marketedby:

PW Thermal Building Solutions Ltd.,Jamestown Road,

Inchicore,Dublin 8.T: 00353 1 420 1771E: [email protected]
mailto:[email protected]:[email protected]

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Part One / Certification 1

1 .1 ASSESSMENT Par t J Heat Produ c ing Appl ian cesJ3 P ro tec t i on o f B u i l d ingIn the opinion of NSAI Agrment, the Powerwall

External Wall Insulation Systems if used inaccordance with this Certificate can meet therequirements of the Building Regulations 1997 to2008, as indicated in Section 1.2 of thisAgrment Certificate.

When the Powerwall External Wall InsulationSystems are used in accordance with Section 4.1of this Certificate, wall lining, insulation andseparation distances meet this requirement.

Par t L Conserv at ion o f Fue l and Energ y1 .2 BUI LDI NG REGULATI ONS 199 7 to 2 008 L1 Conserv a t ion o f Fue l and Energ y

The walls of the Powerwall External WallInsulation Systems can be readily designed toincorporate the required thickness of insulation tomeet the Elemental Heat Loss method

calculations for walls as recommended in Part Lof the Building Regulations 1997 to 2008 (seePart 4 of this Certificate).

REQUI REMENTS:

Par t D Ma te r ia l s and Workm ansh ip

D3 P rope r Ma te r ia l sThe Powerwall External Wall Insulation Systems,as certified in this Certificate, are comprised of

proper materials fit for their intended use (seePart 4 of this Certificate).

D 1 M a t e r i a ls & W o r k m a n sh i pThe Powerwall External Wall Insulation Systems,as certified in this Certificate, meet therequirements for workmanship.

Par t A - S t ruc tu r e

A 1 Load ingThe Powerwall External Wall Insulation Systems

once appropriately detailed, designed andinstalled have adequate strength and stability tomeet the requirements of this Regulation (seePart 3 of this Certificate).

A 2 Ground Movem en tThe Powerwall External Wall Insulation Systemscan be incorporated into structures that will meetthis requirement (see Parts 3 and 4 of thisCertificate).

Par t B F i re Safe ty B4 Ext erna l F i re SpreadThe Powerwall External Wall Insulation Systems

can be incorporated into structures that will meetthis requirement (see Parts 3 and 4 of thisCertificate).

Par t C S i te Preparat ion and Res is tance to

Mo is tu re C4 Res is tance to Wea the r and GroundMo is tu reExternal walls above DPC level have adequateweather resistance in all exposures to preventthe passage of moisture from the externalatmosphere into the building as specified in Part3 of this Certificate.

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Part Two / Technical Specification and Control Data 2

2.1 PRODUCT DESCRI PTI ONEach of the Powerwall External Wall InsulationSystems is given a detailed description in therelevant Detail Sheet.

2 .2 MANUFACTURE, SUPPLY ANDI NSTALLATI ONPowerwall Systems Ltd is responsible for themanufacture and supply of all components toapproved specifications, in accordance with thePowerwall Systems Ltd approved suppliersystem. Powerwall Systems Ltd has appointedPW Thermal Building Solutions Ltd as distributionpartner in Ireland, with responsibility for: Project specific design in accordance with

approved design process; Training, monitoring and review of licensed

applicators in accordance with approvedtraining and assessment procedures;

Product supply; Technical support; Sales and marketing.

The installation of each system is carried out byinstallers who have been trained by PW ThermalBuilding Solutions Ltd, and are approved by PWThermal Building Solutions Ltd and NSAI Agrment

to install the system.

2 .2 .1 Qua l i t y Con t r o lThe Certificate holder operates a qualitymanagement system and a quality plan is inplace for system manufacture, design andinstallation.

2.3 DELI VERY, STORAGE AND MARKI NGThe insulation is delivered to site in packs. Eachpack is marked with the manufacturers details,product identification marks and batch numbers.

Insulation should be stored on a firm, clean, dryand level base, which is off the ground. Theinsulation should be protected from prolongedexposure to sunlight by storing opened packsunder cover in dry conditions or by re-coveringwith opaque polythene sheeting.

Care should be taken when handling theinsulation boards to avoid damage and contactwith solvents or bitumen products. The boardsmust not be exposed to ignition sources.

Each container for other components, e.g. meshcloth, primers, renders etc., bears the

manufacturers and products identificationmarks, batch number and the NSAI Agrmentlogo incorporating the Certificate number. Thesecomponents must be stored in accordance with

the manufacturers instructions, in dry conditions,and at the required storage temperatures. Theyshould be used within the stated shelf life, whereapplicable.

2.4 I NSTALLATI ON2.4 .1 Genera lInstallation shall be carried out by PW ThermalBuilding Solutions Ltd trained applicators whohave been approved by NSAI Agrment to installthe system. Installation shall be in accordancewith the Certificate holders instructions and therequirements of this Certificate.

PW Thermal Building Solutions Ltd prepare abespoke site packaged for each project, includingU-value calculations, requirements for materialshandling and storage, method statements forinstallation, building details, fixing requirements,provision for impact resistance, maintenancerequirements etc. This document forms part ofthe contract documentation for circulation to thehome owner and the installer. Installers will beexpected to adhere to the specification.Deviations must be approved by an PW ThermalBuilding Solutions Ltd technical representative.

PW Thermal Building Solutions Ltd technicalrepresentatives will visit the site on a regularbasis to ensure that work is carried out inaccording with the project specific site package,including the Certificate holders installationmanual.

Mineral fibre board and lamella should beprotected from moisture prior to and duringinstallation. If the board or lamella gets wetduring or post installation, it should not berendered until dry. It may be necessary toremove and replace any unsuitable/wet material.

PIR boards should be protected from moistureprior to and during installation. Damaged boardsshould be removed and replaced.

2.4 .2 Si te S u rvey and P re l im ina ry W orkA pre-installation survey of the property shall becarried out and recorded to confirm suitability ofsubstrate for application, modifications/repairsnecessary, pullout resistance of proposedmechanical fixings etc. The substrate must befree of water repellents, dust, dirt, efflorescenceand other harmful contaminants or materials thatmay interfere with the adhesive bond. Where PIR

boards are to be used, the substrate must beclean, dry and level before installation of theboards.

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Where discrepancies preventing installation ofthe Powerwall External Wall Insulation Systemsin accordance with this Certificate and theCertificate holders instructions exist, thesediscrepancies should be discussed with theCertificate holder and a solution implementedwith the approval of the Certificate holder.

2.4 .3 P rocedu reInstallation of each of the Powerwall ExternalWall Insulation Systems is given a detaileddescription in the relevant Detail Sheet.

Figur e 1 : Base Tr im Bead & Be low DPC Leve l Deta i l

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Figu re 2 : W indow Si l l De ta i l

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Figu re 3 : W indow Revea l De ta i l

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Figu re 4 : Wind ow Head Deta i l

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Figur e 5 : Eaves Deta i l

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Figu re 6 : Movem en t B ead De ta i l

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Part Three / Design Data 3

3 . GENERAL Seals to windows and doors shall be provided inaccordance with the project specific site plan.The system is designed by PW Thermal Building

Solutions Ltd on a project specific basis. Thedesign will include for: Care should be taken to ensure that any

ventilation or drainage openings are notobstructed.

a) A site survey shall be carried out andrecorded.

b) Preparation of substrate.c) Minimising risk of condensation in accordance

with recommendations of BS 5250:2002Code of practice for control of condensationin buildings.

d) Thermal insulation provision to Part L of theBuilding Regulations 1997 to 2008.

e) Resistance to impact and abrasion.f) Resistance to thermal stresses.g) Resistance to wind loading.h) Design of fixings to withstand design wind

loadings, using a safety factor of three formechanical fixings and a safety factor of ninefor adhesive. In addition, fixings aroundwindow and door openings shall be at amaximum of 400mm centres in each board orsection of board so as to provide positive androbust restraint over the life of the system.

i) Design for fire resistance, fire spread and firestopping.

j) Design of a water management system to

prevent ingress of water at movement joints,windows, doors, openings for services etc.Particular attention is required to ensure thatwindow and sill design are coordinated toachieve a fully integrated design.

k) Movement joints.l) A site specific maintenance programme for

inclusion in the home ownersdocumentation.

m) Durability requirements.

Detailing and construction must be to a highstandard to prevent the ingress of water and toachieve the design thermal performance.

Windows should be designed such that, wherepossible, they can be removed and replaced fromwithin the building. Consideration should begiven to maximising improvement of thermalinsulation at window reveals, door openings etc.

Adequate provision should be made at designand installation stage for the release of trappedmoisture e.g. above window heads.

When designed and installed in accordance withthis Certificate, the systems will satisfy the

requirements of TGD to Part L of the BuildingRegulations. The design shall include for theelimination of cold bridging at window and doorreveals, eaves and at ground floor level.

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Part Four / Technical Investigations 4

4 .1 STRENGTH AND STABI LI TY 4.3 PROXI MI TY OF HEAT PRODUCI NGAPPLI ANCESThe Powerwall External Wall Insulation Systems

can be designed to withstand the wind pressures(including suction) and thermal stresses inaccordance with the Building Regulations 1997 to2008.

Combustible material must be separated from abrick or blockwork chimney by at least 200mmfrom a flue, or 40mm from the outer surface ofthe brick or blockwork chimney, in accordancewith Clause 2.15 of TGD to Part J of the BuildingRegulations 1997 to 2008. Metal fixings incontact with combustible materials should be atleast 50mm from a flue.

The systems have adequate resistance to severemechanical impact and abrasion where walls areexposed and have some protection, e.g. walls ofprivate dwellings and walls of communaldwellings above ground floor level. This does notinclude an allowance for acts of vandalism. The

design should include for preventing impact frommotor vehicles or other machinery.

4.4 THERMAL I NSULATI ONAssessments were carried out to verify that the

requirements of Part L of the Building Regulations1997 to 2008 can be achieved using thePowerwall External Wall Insulation Systems. Themanufacturers declared thermal conductivityvalues are 0.038W/mK for the standard whiteEPS board, 0.031W/mK for the carbon-enhancedEPS board, 0.036W/mK for the mineral woolboard, and 0.023W/mK for the PIR board. Thesehave not been assessed by NSAI Agrment.

4 .2 BEHAVI OUR I N RELATI ON TO FI REThe external surfaces of the systems areclassified as Class O as per Clause A12 of TGD toPart B of the Building Regulations 1997 to 2008.

The mineral wool board is classed as non-combustible as per Table A8 d) of TGD to Part Bof the Building Regulations 1997 to 2008. 4 .5 CONDENSATI ON RI SK

Areas where there is a significant risk ofinterstitial condensation due to high levels ofhumidity should be identified during the initial

site survey. Condensation risk analysis will becarried out by PW Thermal Building Solutions Ltdin accordance with BS 5250:2002, and the designmodified as appropriate to reduce the risk ofsurface condensation to acceptable levels.

The Powerwall External Wall Insulation Systemswhen tested in accordance with BS 8414-1:2002

Fire performance of external cladding systems Test methods for non-loadbearing external

cladding systems applied to the face of a buildingmet the performance criteria set in BRE135:2003 Fire performance of external thermalinsulation for walls of mult i-storey buildings.

4 .6 MAI NTENANCEWith regard to fire stopping of cavities andlimitations on use of combustible materials, wallsmust comply with Sections B3.2, B3.3, B3.4 andB4 of TGD to Part B of the Building Regulations1997 to 2008.

Adequate provision should be made for accessand maintenance over the life of the system.

The system shall be inspected and maintained inaccordance with the Certificate holdersinstructions, as detailed in the Repair andMaintenance Method Statement, which isincorporated into the Home Owners Manual.

Fire fixings to be provided at the rate of one persquare metre when specified. The fixing designshould take account of the extra duty requiredunder fire conditions. Repairs should be carried out in accordance with

the Certificate holders instructions. Repairs toplumbing etc. should also be carried out asrequired to prevent deterioration or damage, andto protect the integrity of the system.

Vertical and horizontal fire barriers shall beprovided at each compartment floor and wall,including the second floor level of a three-storeysingle occupancy house. Firebreaks should beadhesively bonded to the substrate andmechanically fixed with stainless steel fire fixingsat 300 centres. The fire barrier should be of non-combustible material, i.e. mineral fibre, be atleast 100mm high, continuous and unbroken for

the full perimeter of the building and for the fullthickness of the insulation.

Synthetic finishes may be subject to aestheticdeterioration due to exposure to UV light. Theyshould be re-painted every 18 to 20 years tomaintain appearance. Care should be taken toensure that the paint used is compatible with the

original system and that the water vapourtransmission or fire characteristics are notadversely affected.

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Sealants shall be subject to regular inspection (atleast annually). They should be replaced asrequired and fully replaced every 18 to 20 yearsto maintain performance.

4 .7 W EATHERTI GHTNESSWhen designed and detailed in accordance withthis Certificate, the system will prevent moisturefrom the ground coming in contact with theinsulation.

The external render has adequate resistance towater penetration when applied in accordancewith the Certificate holders instructions.Joint designs, sealant specifications andrecommendations for detailing at windows anddoors were assessed and are consideredadequate to ensure that water penetration willnot occur, assuming that regular maintenance is

carried out in accordance with the Certificateholders instructions.

4 .8 DURA BI L I TY4.8 .1 Design L i feAn assessment of the life of the system wascarried out. This included an assessment of: Design and installation controls; Proposed building heights; Render thickness and specification; Material specifications, including insulant,

mesh, beading and fixings specifications; Joint design; Construction details; Maintenance requirements.

The assessment indicates that the system shouldremain effective for at least 30 years, providingthat it is designed, installed and maintained inaccordance with this Certificate. Any damage tothe surface finish shall be repaired immediatelyand regular maintenance shall be undertaken asoutlined in Section 4.6 of this Certificate.

4.8 .2 A esthe t i c Pe r fo rm anceAs with traditional renders, the aestheticperformance of the systems, e.g. due to

discolouration, soiling, staining, algal growth orlime bloom, is dependent on a range of factorssuch as: Type, colour and texture of surface finish; Water retaining properties of the finish; Architectural form and detailing; Building orientation/elevation; Local climate/atmospheric pollution.

Adequate consideration should be given at thedesign stage to all of the above to ensure thatthe level of maintenance necessary to preservethe aesthetics of the building is acceptable.

4 .9 PRACTI CABI L I TYThe practicability of construction and theadequacy of site supervision arrangements wereassessed and considered adequate. The project

specific designs and method statements forapplication, inspection and repair were reviewed.

4. 1 0 TESTS AND ASSESSMENTS W ERECARRI ED OUT TO DETERMI NE THEFOLLOWI NG Structural strength and stability. Behaviour in relation to fire. Impact resistance. Pull-out resistance of fixings. Thermal resistance. Condensation risk. Site erection controls. Durability of components. Dimensional stability of insulants.

4.11 OTHER I NVESTI GATI ONS(i) Existing data on product properties in relation

for fire, toxicity, environmental impact and

the effect on mechanical strength/stabilityand durability were assessed.

(ii) The manufacturing process was examinedincluding the methods adopted for qualitycontrol, and details were obtained of thequality and composition of the materialsused.

(iii)Special building details (e.g. ground level,window and door openings and movement

joints) were assessed and approved for usein conjunction with this Certificate.

(iv)Site visits were conducted to assess thepracticability of installation the history ofperformance in use of the product.

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Part Five /Conditions of Certification 5

5 .3 In granting Certification, the NSAI makes norepresentation as to;

5 .1 National Standards Authority of Ireland("NSAI") following consultation with NSAIAgrment has assessed the performance andmethod of installation of the product/process andthe quality of the materials used in itsmanufacture and certifies the product/process tobe fit for the use for which it is certified providedthat it is manufactured, installed, used andmaintained in accordance with the descriptionsand specifications set out in this Certificate and inaccordance with the manufacturer's instructionsand usual trade practice. This Certificate shallremain valid for five years from date of issue so

long as:

(a) the absence or presence of patent rightssubsisting in the product/process; or

(b) the legal right of the Certificate holder tomarket, install or maintain the product/process;or

(c) whether individual products have beenmanufactured or installed by the Certificateholder in accordance with the descriptions and

specifications set out in this Certificate.

5 .4 This Certificate does not compriseinstallation instructions and does not replace themanufacturer's directions or any professional ortrade advice relating to use and installation whichmay be appropriate.

(a) the specification of the product is unchanged.

(b) the Building Regulations 1997 to 2008 andany other regulation or standard applicable to theproduct/process, its use or installation remainsunchanged.

5 .5 Any recommendations contained in thisCertificate relating to the safe use of the certifiedproduct/process are preconditions to the validityof the Certificate. However the NSAI does notcertify that the manufacture or installation of thecertified product or process in accordance with

the descriptions and specifications set out in thisCertificate will satisfy the requirements of theSafety, Health and Welfare at Work Act 2005, orof any other current or future common law dutyof care owed by the manufacturer or by theCertificate holder.

(c) the product continues to be assessed for thequality of its manufacture and marking by NSAI.

(d) no new information becomes available whichin the opinion of the NSAI, would preclude the

granting of the Certificate.

(e) the product or process continues to bemanufactured, installed, used and maintained inaccordance with the description, specificationsand safety recommendations set out in thiscertificate.

5 .6 The NSAI is not responsible to any personor body for loss or damage including personalinjury arising as a direct or indirect result of theuse of this product or process.

(f) the registration and/or surveillance fees dueto NSAI Agrment are paid.

5 .2 The NSAI Agrment mark and certificationnumber may only be used on or in relation toproduct/processes in respect of which a validCertificate exists. If the Certificate becomesinvalid the Certificate holder must not use theNSAI Agrment mark and certification numberand must remove them from the productsalready marked.

5 .7 Where reference is made in this Certificateto any Act of the Oireachtas, Regulation madethereunder, Statutory Instrument, Code ofPractice, National Standards, manufacturer'sinstructions, or similar publication, it shall beconstrued as reference to such publication in theform in which it is in force at the date of thisCertification.

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NSAI Agrment

This Certificate No. 0 9 / 0 34 1 is accordingly granted by the NSAI to PW Therm a l Bu i l d i ngSo lu t i ons L td . on behalf of NSAI Agrment.

Date of Issue: Octobe r 200 9

Signed

Sen Ba l feD i rec to r o f NSA I A g rm en t

Readers may check that the status of this Certificate has not changed by contacting NSAIAgrment, NSAI, 1 Swift Square, Northwood, Santry, Dublin 9, Ireland. Telephone: (01) 8073800. Fax: (01) 807 3842. www.nsai.ie
http://www.nsai.ie/http://www.nsai.ie/

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Ce r t i f i ca t e N o . 0 9 / 0 3 4 1 D e t a i l Sh e et 1 / P ow e r w a l l E x t e r n a l W a l l I n s u l at i o n S y st e m 1

CERTI FI CATE NO. 09 / 034 1DETAI L SHEET 1

Po w e rw a ll Ex t e rn a l W a ll I n su lat i o n Sys t e m 1

a External Render Finish

b Adhesive Coat

c Glass Mesh

d Bellcast Bead

e Mechanical Fixing

f Insulation

g Corner Bead

h Oversill

USE:PRODUCT DESCRI PTI ONThe system is for use as external insulation forrefurbishment/retrofit of new/existing masonry orconcrete buildings, up to a maximum of sixstoreys (18 metres) in height in purpose groups1(a), 1(b), 1(c), 2(a), 2(b), 3, 4(a) and 4 asdefined in TGD to Part B of the BuildingRegulations 1997 to 2008.

This Detail Sheet relates to Powerwall ExternalWall Insulation System 1, as defined in NSAIAgrment Certificate 09/0341.


1.2 BUI LDI NG REGULATI ONS 199 7 to 20081.1 ASSESSMENTThis matter is dealt with in NSAI AgrmentCertificate 09/0341.

In the opinion of NSAI Agrment, PowerwallExternal Wall Insulation System 1, if used inaccordance with this Detail Sheet, meets therequirements of the Building Regulations 1997 -

2008 as indicated in Section 1.2 of Certificate09/0341.

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Ancillary materials Powerwall Base Coat,profiles, profile fixings, sealant,precompressed sealing strip and PowerwallFungicidal Wash.

2.1 PRODUCT DESCRI PTI ONThe Powerwall External Wall Insulation System 1comprises: EPS (expanded polystyrene) insulation

boards, both standard white or carbon-enhanced - 1000mm by 600mm in a range ofthicknesses between 20 and 150mm (otherthicknesses are available on request), with anominal density of 15kg/m

Insulation boards are initially fixed to theexternal surfaces of walls using the PowerwallAdhesive Coat. When the boards have adhered tothe wall, the adhesive coat is trowel-applied tothe insulation in a minimum thickness of 3mm,and the reinforcing mesh is embedded.Mechanical fixings are then installed at thefrequency of 6 fixings per square metre

depending on individual specifications. Thesystem is finished with an 8 to 10mm layer ofPowerwall Exposed Aggregate Render and dry-dashed with Powerwall Aggregate. If required,the window and door reveals can be finished withan 8 to 10mm layer of Powerwall Smooth BandRender.

3 and a minimumcompressive strength of 70kN/m2. Boardsmust be type FRA (flame retardant additive)material. Boards are manufactured to complywith the requirements of IS EN 13163:2008

Thermal insulation products for buildings Factory made products of expandedpolystyr ene ( EPS) - Specification.

PIR (polyisocyanurate) insulation boards 1200mm by 600mm in a range of thicknessesbetween 25 and 150mm, with a minimumcompressive strength of 172kN/m2. Boards of15mm thickness are available for use inwindow and door reveals. Boards aremanufactured to comply with therequirements of IS EN 13165:2008 Thermalinsulation products for buildings Factory

made rigid polyurethane foam (PUR) products

- Specification.

2 .2 I NSTALLATI ON PROCEDURE Application is carried out in accordance with

PW Thermal Building Solutions Ltds currentinstallation instructions, and the illustrationscontained in Section 2.4 of Certificate09/0341.

Weather conditions should be monitored toensure correct application and curingconditions. Application of coating materialsshould not be carried out below 5

Mineral wool insulation 1200mm by 600mmin a range of thicknesses between 30mm and200mm, with a density of 100, 128 or140kg/m3 oand typical compression resistance(at 20% compression) of 35, 50 or 65kPa.Boards are manufactured to comply with therequirements of IS EN 13162:2008 Thermalinsulation products for buildings Factory

made mineral wool (MW) products

Specification.

C or above30oC, nor if exposure to frost is likely. Thecoating must be protected from rapid drying.

All rendering should follow best practiceguidelines detailed in IS EN 13914-1:2005Design, preparation and application of

external rendering and internal plastering

External rendering and BS 8000-10:1995Workmanship on building sites Code of

practice for plastering and rendering.

Powerwall mechanical fixings. Powerwall Adhesive Coat a polymer

modified, cement based adhesive supplied asa powder to which water is added, andavailable in grey and white.

Powerwall renders and adhesive must bemixed for at least 5 minutes.

Powerwall reinforcing mesh a 1m widemesh of multi-stranded alkali-resistant glassfibres, having a polymer coating and anominal weight of 157g/m

One coat of Powerwall Fungicidal Wash isapplied by brush, roller or knapsack spray tothe entire surface of the wall.

2 The Powerwall base profile is secured to the

external wall above the dpc and on top of theXPS plinth board using the approved profilefixings at approximately 400mm centres.

. Powerwall Exposed Aggregate Render a

polymer modified, cement based mortarsupplied as a powder to which water isadded, and available in a range of colours. Powerwall Adhesive Coat is prepared for use

by mixing the powder with water, using anelectric paddle mixer. 1 litre of water is usedwith every 4.5kg of powder. The adhesive isapplied in dabs and should cover at least

30% of the board. 6 dabs are applied aroundthe perimeter of the board and 2 dabs alongthe centre line of the board.

Powerwall Smooth Bond Render a polymermodified, cement based mortar supplied as apowder to which water is added, andavailable in a range of colours.

Powerwall Spar-Dash Aggregate, available ina range of colours to suit the PowerwallExposed Aggregate Render.

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The first run of insulation boards is positionedon the base profile, and pressed firmlyagainst the wall. Subsequent rows of boardsare positioned so that the vertical board

joints are staggered and overlapped at thebuilding corners. If required, the boards maybe arranged with the longer edge positionedvertically. Where necessary, a primary fixingmay be used at the centre of each board toensure adhesion during the installationprocess.

Care must be taken to ensure that all boardedges are butted tightly together, andalignment should be checked as workproceeds. For the EPS, any high spots orirregularities should be removed by lightlyplaning with a rasp. The window and doorreveals should be insulated where possible.Where clearance is limited, the special 15 or

25mm boards are used. To fit around details such as doors and

windows, insulation boards may be cut with asharp knife or fine-tooth saw. Purpose-madewindow sills are fitted, which are designed toprevent water ingress and incorporate dripsto shed water clear of the system.

Installation continues until the whole wall iscompletely covered including, whereappropriate, the building soffits.

Movement joints in the substrate must becontinued through the system.

Powerwall Adhesive Coat is prepared asdescribed above and a bed coat is trowel-

applied to the surface of dry insulationboards to a minimum thickness of 3mm.

An alkali-resisting glass-fibre mesh is beddedinto the adhesive with 100mm laps at joints.Extra mesh is used around openings.

After the adhesive has been left to dry for atleast 24 hours, holes are drilled typically at400mm horizontal centres and 300mmvertical centres, or 300mm horizontal centresand 400mm vertical centres. Mechanicalfixings are inserted through the mesh andtapped firmly home.

Mechanical fixings are positioned 300mm

apart around window details and 200mmvertical centres at building corners. Building corners, door and window heads and

jambs are formed using Powerwall Base Coator angle beads in accordance with themanufacturers instructions. The base coat isprepared for use by mixing the powder withwater, using an electrically driven paddlemixer or concrete mixer. 1 litre of water isused with every 6.4kg of powder.

Expansion beads are fixed vertically in agreedpositions. These beads are positioned atapproximately 7m centres along a building,the centres depending on the individual

requirements of each job. Stop beads are positioned vertically, e.g. at

party wall positions where the adjoininghouse does not require treatment.

Prior to the render coat, a bead of siliconerubber sealant is gun-applied at window anddoor frames, overhanging eaves, gas andelectric meter boxes, wall vents, or where therender abuts any other building material orsurface.

The drying period of any render will dependon weather conditions; however the basecoat must be left to harden for at least 1 daybefore application of the topcoat. PowerwallExposed Aggregate Render is prepared foruse by mixing the powder with water, usingan electric paddle mixer or concrete mixer. 1litre of water is used with every 4.5kg ofpowder.

One coat of the render is trowel-applied to aminimum thickness of 8 to 10mm. While therender is still soft, selected clean sparaggregate is thrown or sprayed onto the

surface. On completion, the surface must bechecked to ensure an even coverage of spar-dash has been achieved. Where necessary,the aggregate should be lightly tamped toensure that a good bond is achieved.

Powerwall Smooth Bond Render is applied tothe insulated reveals. The product isprepared as for the Powerwall ExposedAggregate Render and is trowel-applied to aminimum thickness of 8 to 10mm.

At the tops of the walls the system must beprotected by an overhang or by anadequately sealed purpose-made flashing.

Care must be taken in the detailing of the

system around openings and projections. To prevent the finish from drying too rapidly

it should not be applied in direct sunlight.Continuous surfaces must be completedwithout a break.

On completion of the installation, externalfittings, e.g. rainwater goods, are re-fixedthrough the system into the substrate.

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b Base Coat

c SS Reinforcement Lath

d Bellcast Bead

e Mechanical Fixing

f Insulation

g Corner Bead

h Oversill







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Powerwall Spar-Dash Aggregate, available ina range of colours to suit the PowerwallPolymer Exposed Aggregate Render/Wet-Dash.


boards, both standard white or carbon-enhanced - 1000mm by 600mm in a range ofthicknesses between 20 and 150mm (otherthicknesses are available on request), with anominal density of 15kg/m

Ancillary materials Powerwall profiles (arange of standard profiles for wall base, endstop, corner mesh, expansion joint etc. profiles are available in organic polyesterpowder-coated galvanised steel or stainlesssteel and are provided to the specifiersrequirements), profile fixings, sealant, andPowerwall Fungicidal Wash.

3 and a minimumcompressive strength of 70kN/m2. Boardsmust be type FRA (flame retardant additive)material. Boards are manufactured to complywith the requirements of IS EN 13163:2008


Insulation boards are initially fixed to theexternal surfaces of walls using the PowerwallAdhesive Coat. The metal lathing is placedagainst the boards and secured in position withmechanical fixings at the average frequency of 9fixings per square metre depending on individualspecifications. Powerwall Base Coat is trowel-applied to a thickness of 8 to 10mm and allowedto dry. The system is finished with a 6 to 8mmtrowel-applied layer of Polymer ExposedAggregate Render/Wet-Dash and dry-dashedwith Powerwall Aggregate. If required, thewindow and door reveals can be finished with an8 to 10mm layer of Smooth Bands Render.



- Specification.

Mineral wool insulation 1200mm by 600mmin a range of thicknesses between 30mm and200mm, with a density of 100, 128 or140kg/m



3 and typical compression resistance(at 20% compression) of 35, 50 or 65kPa.Boards are manufactured to comply with therequirements of IS EN 13162:2008 Thermalinsulation products for buildings Factory

made mineral wool (MW) products

Specification.

Weather conditions should be monitored toensure correct application and curingconditions. Application of coating materialsshould not be carried out below 5o Powerwall mechanical fixings. C or above30o Powerwall Adhesive Coat a polymer


C, nor if exposure to frost is likely. Thecoating must be protected from rapid drying.




practice for plastering and rendering.

Powerwall metal lathing expanded metalmanufactured to form a diamond meshpattern. The metal lathing is available inausthenitic stainless steel grade 304Snominal weight 0.7g/m2.

Powerwall renders and adhesive must bemixed for at least 5 minutes.

Powerwall Base Coat a polymer modifiedcement based mortar, supplied as a powderto which water is added. One coat of Powerwall Fungicidal Wash is

applied by brush, roller or knapsack spray tothe entire surface of the wall.

Powerwall Exposed Aggregate Render apolymer modified, cement based mortarsupplied as a powder to which water isadded, and available in a range of colours.

The Powerwall base profile is secured to theexternal wall above the dpc and on top of the

XPS plinth board using the approved profilefixings at approximately 400mm centres.

Powerwall Smooth Band Render a polymermodified, cement based mortar supplied as apowder to which water is added, andavailable in a range of colours.

Powerwall Adhesive Coat is prepared for useby mixing the powder with water, using an

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electric paddle mixer. 1 litre of water is usedwith every 4.5kg of powder. The adhesive isapplied in dabs and should cover at least30% of the board. 6 dabs are applied aroundthe perimeter of the board and 2 dabs alongthe centre line of the board.

The first run of insulation boards is positionedon the base profile, and pressed firmlyagainst the wall. Subsequent rows of boardsare positioned so that the vertical board

joints are staggered and overlapped at thebuilding corners. If required, the boards maybe arranged with the longer edge positionedvertically. Where necessary, a primary fixingmay be used at the centre of each board toensure adhesion during the installationprocess.

Care must be taken to ensure that all boardedges are butted tightly together, and

alignment should be checked as workproceeds. For the EPS, any high spots orirregularities should be removed by lightlyplaning with a rasp. The window and doorreveals should be insulated where possible.Where clearance is limited, the special 15 or25mm boards are used.

To fit around details such as doors andwindows, insulation boards may be cut with asharp knife or fine-tooth saw. Purpose-madewindow sills are fitted, which are designed toprevent water ingress and incorporate dripsto shed water clear of the system.

Installation continues until the whole wall is

completely covered including, whereappropriate, the building soffits.


The stainless steel reinforcing lath is fixedagainst the insulation, using the mechanicalfixings at the specified average rate of 9 persquare metre. The fixings are positionedtypically at 300mm centres both verticallyand horizontally.

Mechanical fixings are positioned 300mmapart around window details and 300mmvertical centres are building corners.

The lath joint should overlap by no less than70mm in either a horizontal or verticaldirection and should be tied together at200mm intervals by using stainless steel wireor snipping a strand of lath and bending itover the lapping mesh.

Prior to the render coat, a bead of clearsilicone rubber sealant is gun-applied atwindow and door frames, overhanging eaves,gas and electric meter boxes, wall vents orwhere the render abuts any other buildingmaterial or surface.

Building corners, door and window heads andjambs are formed using Powerwall Base Coat

or angle beads in accordance with themanufacturers instructions.

Stop beads are positioned vertically, e.g. atparty wall positions where the adjoininghouse does not require treatment.

Powerwall Base Coat is prepared for use bymixing the powder with water, using anelectrically driven paddle mixer or concretemixer. 1 litre of water is used with every6.4kg of powder.

The base coat is trowelled upwards onto thesurface of the dry insulation boards so that itis forced behind the lath. It is applied in athickness of 8 to 10mm, taking care toachieve complete coverage of the lath and tobutt the base coat under details such aswindow sills.

Powerwall Exposed Aggregate Render isprepared for use by mixing the powder withwater, using an electric paddle mixer orconcrete mixer. 1 litre of water is used with

every 4.5kg of powder. The drying period of any render will depend

on weather conditions; however the basecoat must be left to harden for at least 1 daybefore one coat of Powerwall ExposedAggregate Render is trowel-applied to aminimum thickness of 6 to 8mm. While therender is still soft, selected clean sparaggregate is thrown or sprayed onto thesurface. On completion, the surface must bechecked to ensure an even coverage of spar-dash has been achieved. Where necessary,the aggregate should be lightly tamped toensure that a good bond is achieved.

Powerwall Smooth Band Render is applied tothe insulated reveals. The product isprepared as for the Powerwall PolymerExposed Aggregate Render/Wet-Dash and istrowel-applied to a minimum thickness of 8to 10mm.


Care must be taken in the detailing of thesystem around openings and projections.

To prevent the finish from drying too rapidlyit should not be applied in direct sunlight.

Continuous surfaces must be completedwithout a break. On completion of the installation, external

fittings, e.g. rainwater goods, are re-fixedthrough the system into the substrate.

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b Adhesive Coat

c Glass-fibre Mesh

d Starter Track

e Mechanical Fixing

f Insulation

g Mesh Angle Bead

h Oversill







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boards, both standard white or carbon-enhanced - 1000mm by 600mm in a range ofthicknesses between 20 and 150mm (otherthicknesses are available on request), with anominal density of 15kg/m3 and a minimumcompressive strength of 70kN/m2. Boardsmust be type FRA (flame retardant additive)material. Boards are manufactured to complywith the requirements of IS EN 13163:2008




- Specification.

Powerwall mechanical fixings. Powerwall Adhesive Coat a polymer


Powerwall reinforcing mesh a 1m widemesh of multi-stranded alkali-resistant glassfibres, having a polymer coating and anominal weight of 157g/m2.

Powerwall Sand/Swirl Finish a ready to useacrylic based decorative coating containingaggregates, coalescing and thickeningagents. The finish is available in aggregatesizes of 1, 1.5 and 2mm and a range ofcolours.

Ancillary materials Powerwall profiles (arange of standard profiles for wall base, endstop, corner mesh, expansion joint etc. profiles are available in organic polyesterpowder-coated galvanised steel or stainlesssteel and are provided to the specifiersrequirements), profile fixings, sealant,precompressed sealing strip and PowerwallFungicidal Wash.

Insulation boards are initially fixed to theexternal surfaces of walls using the Powerwall

Adhesive Coat with supplementary fixings whererequired (mechanical fixings are always requiredfor no-fines substrates). When the boards haveadhered to the wall, the adhesive coat is trowel-

applied to the insulation in a minimum thicknessof 3mm, and the reinforcing mesh and left to dry.The system is finished with a layer of PowerwallSand/Swirl Finish.



Weather conditions should be monitored toensure correct application and curing

conditions. Application of coating materialsshould not be carried out below 5oC or above30oC, nor if exposure to frost is likely. Thecoating must be protected from rapid drying.




practice for plastering and rendering. Powerwall renders and adhesive must be

mixed for at least 5 minutes. One coat of Powerwall Fungicidal Wash is

applied by brush, roller or knapsack spray tothe entire surface of the wall.

The Powerwall base profile is secured to theexternal wall above the dpc and on top of theXPS plinth board using the approved profilefixings at approximately 400mm centres.

Powerwall Adhesive Coat is prepared for useby mixing the powder with water, using anelectric paddle mixer. 1 litre of water is usedwith every 4.5kg of powder. The adhesive isapplied to the complete surface of the boardusing a notched trowel.

The first run of insulation boards is positionedon the base profile. Subsequent rows ofboards are positioned so that the verticalboard joints are staggered and overlapped atthe building corners. If required, the boardsmay be arranged with the longer edgepositioned vertically. Insulation boards aremechanically fixed to the wall at a rate of 5fixings per square metre.

Care must be taken to ensure that all boardedges are butted tightly together, andalignment should be checked as workproceeds. For the EPS, any high spots orirregularities should be removed by lightlyplaning with a rasp. The window and door

reveals should be insulated where possible.Where clearance is limited, the special 15 or25mm boards are used.

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To fit around details such as doors andwindows, insulation boards may be cut with asharp knife or fine-tooth saw. Purpose-madewindow sills are fitted, which are designed toprevent water ingress and incorporate dripsto shed water clear of the system.

Installation continues until the whole wall iscompletely covered including, whereappropriate, the building soffits.


Powerwall Adhesive Coat is prepared asdescribed above and a bed coat is trowel-applied to the surface of dry insulationboards to a minimum thickness of 3mm.

An alkali-resisting glass-fibre mesh is beddedinto the adhesive with 100mm laps at joints.Extra mesh is used around openings.

Building corners, door and window heads and

jambs are formed using angle beads inaccordance with the manufacturersinstructions.

Only follow structural expansion through tothe surface with full system expansion bead.

Stop beads are positioned vertically, e.g. atparty wall positions where the adjoininghouse does not require treatment.

Prior to the render coat, a bead of siliconerubber sealant is gun-applied at window anddoor frames, overhanging eaves, gas andelectric meter boxes, wall vents, or where therender abuts any other building material orsurface.

The drying period of any render will dependon weather conditions; however the basecoat must be left to harden for at least 1 daybefore application of the topcoat. PowerwallSand/Swirl Finish should be thoroughly mixedbefore application. The coating is trowel-applied to the thickness of the chosenaggregate size.


Care must be taken in the detailing of thesystem around openings and projections.

To prevent the finish from drying too rapidlyit should not be applied in direct sunlight.Continuous surfaces must be completedwithout a break.

On completion of the installation, externalfittings, e.g. rainwater goods, are re-fixedthrough the system into the substrate.

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NSAI-Cert