High Performance Products · Allan Brothers H Window - Technical Guide February 2012 Ver. 1.0 Page 2 Company Background Allan Brothers Allan Brothers, Britain’s longest exis9ng

High Performance Products

H Window Technical Guide

Version 1.0

February 2012

ALLAN BROTHERS LTD

ALLAN HOUSE

ORD ROAD

TWEEDMOUTH

BERWICK-UPON-TWEED

TD15 2XU

Tel 01289 334600

Fax 01289 334601

Visit us at- www.allanbrothers.co.uk

Allan Brothers H Window - Technical Guide February 2012 Ver. 1.0

Page 2

Company Background

Allan Brothers

Allan Brothers, Britain’s longest exis9ng high performance joinery company was founded in

1811 in the small Sco<sh Borders town of Eyemouth. The business relocated to the town

of Berwick upon Tweed in 1853 and has been at its current purpose-built factory since

1988. Although no formal connec9on remains between the Company and the Allan family,

the long history of the Company in the town has seen many genera9ons of families em-

ployed within the business. In 2007 Allan Brothers was bought by Inwido Group as the

cornerstone of its strategic development in the UK.

Allan Brothers has a reputa9on for high standards of design and cra@smanship, good ser-

vice and for consistently providing a value for money products and professional advice to

our customers. From our factory in Northumberland we deliver excellence in products and

service to customers all over the UK. Our long associa9on with our town and our posi9on

as one of the regions biggest employers means that we take an excep9onal pride in all that

we do. Our extensive range of products is designed to meet all requirements whether ex-

ecu9ve homes, city apartments, social housing, 9mber-framed building projects, sympa-

the9c rural developments or public sector construc9on.

INWIDO GROUP

Inwido is a Swedish-owned mul9-na9onal Group of 9mber window and door manufactur-

ing businesses. The Group has expanded rapidly since 2003 through acquisi9on of success-

ful local and na9onal companies in this sector. Today Inwido is the number one supplier of

9mber windows and doors in the Nordic region with ambi9ons to grow strongly in other

markets.

With opera9ons in almost all of the northern European countries, the Group has the capa-

bility to supply every type of 9mber and 9mber-aluminium window and door into the UK

market through its local opera9ons.

Quality Assurance

Allan Brothers have a long history of supplying quality joinery products to our customers.

The level of product quality and the adjoining services of Allan Brothers are key to the com-

pany’s success and forward planning. We have an ongoing commitment to the training and

development of all our employees regarding the level of quality required throughout our

manufacturing processes and services and their own involvement within this in achieving

and exceeding this standard. We are commiBed to regular monitoring throughout various

stages of our customer’s enquiries and orders from ini9al receipt through to delivery and

our a@er sales services. From this we are able to monitor performance to ensure they are

in line with our con9nuous improvement programmes. We have implemented the quality

standards of ISO 9001: 2008. We are monitored for compliance to this standard by periodic

assessment from a recognised independent accredited organisa9on. This standard will be

used to further reinforce our commitment to our high standards of quality and con9nuous

improvement.

Q-Mark

The Q-Mark is readily iden9fiable as a market leader in the cer9fica9on

of 9mber related products and a growing range of other construc9on

materials.

Product cer9fica9on provides assurance to specifiers, contractors and purchasers that our

products will perform to an agreed standard. BM TRADA has offered a range of cer9fica9on

schemes under the Q-Mark brand for building products for over 20 years.

By specifying or selec9ng our Q-Marked product you can be assured that it has demon-

strated the required performance levels through independent UKAS accredited tes9ng or

appraisal, and that every product manufactured offers the same level of performance

through an approved quality management system.

Performance and produc9on con9nue to be regularly checked through audit tes9ng and

inspec9ons.

Q-Mark integrates with ISO 9001, FSC Timber Chain of Custody, BFRC Energy Ra9ngs,

BS644 and Secured By Design

Descrip+on


Page 3

Product

1. Frame Head 8. Deadlight Glazing Bead

2. Sash Top Rail 9. Deadlight Glazing Unit

3. Frame Jamb 10. Sash BoBom Glazing Bead

4. Frame Mullion 11. Sash BoBom Rail

5. Sash S9le 12. Frame Sole

6. Sash Glazing Beads 13. Cill Extension

7. Sash Glazing Unit 14. Deadlight BoBom Glazing Bead

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

Product Terminology

About the H Window

The H window range is a flush casement with a 105mm sec9on, comprising of Top Hung (Fully Reversible) and fixed lights. The range u9lises a

28mm Double Glazing Unit which gives the client a wide variety of glazing op9ons. Whether for security, noise or thermal insula9on we can

provide a glazing solu9on to suit the specific requirements.

The H Window range can be supplied in larger-than-average sizes so more challenging architectural designs are achievable. The top hung fully

reversible window has Spilka hinges demanded by many customers with the convenience and prac9cality of being reversible. We understand

the condi9ons that our products are exposed to and factor into them measures to protect against the harshest condi9ons. Products have

been designed for long-las9ng thermal and security performance.

The H Window range can be enhanced to meet BS7950 and therefore sa9sfy the requirements of Secured by Design.


Page 4

Eleva+ons

Below are the eleva9ons which are available on our H Window range. These can be further divided up with bar paBerns. Items can also be

coupled together on site to give greater flexibility in architectural design i.e. Combina9on frames.

All opening sashes are hung on a fully reversible hinge.

Note: The maximum semi-perimeter is 4400mm for all window designs. Maximum overall width of any window is 3400mm. Maximum

overall height of any window is 3400mm. Please also reference parameters on the next page.

Eleva9ons viewed from outside

Note:

Transoms run the full width of the frame using tenon joints and a strengthening plate.


Page 5

Components

The graphs below show the available sash sizes for the H Window range, the leader lines show key dimensions, the shaded areas show the

hardware limita9ons and availability of egress (0.33m²) for compliance with the relevant Building Regula9ons.

Top hung fully reversible parameters - Sash sizes (Frame sizes are in brackets)

Basic Size Guidelines

Frame size (opening sash) - Min Width 380mm Max Width 1980mm

Min Height 380mm Max Height 1580mm

Frame Size (direct glazed) - Min Width 280mm Max Width 2180mm

Min Height 280mm Max Height 2180mm

Window Weights

Window weights will be provided on the es9mate/order.

Please refer to MAC Tool on HSE website for individual Manual Handling Assessment.

Timber

FSC Redwood to BSEN942 or BSEN13307.

Opaque finishes use Finger-jointed Laminated Redwood.

Stained Finishes use Clear faced Laminated Redwood.

Preserva+ve Treatment

All 9mber is treated to BS8417 a@er machining processes have been completed

Paint

Our H Window is Fully factory finished using a high build micro-porous coa9ng system.

As standard the product is factory finished in white. There is an op9on to have your windows stained to one of our woodshades or painted

with an alterna9ve RAL colour.

Please refer to our Opera9on and Maintenance guides for maintenance cycles.

Glass

28mm IGU with the op9ons of Low E, float, toughened, laminated, and obscures of Cotswold, Marine, and Etched Sa9n.

Parameters


Page 6

Weather Performance & Opera+ng Forces


Page 7

U-values

Glazing Specifica+ons Glass

g-value

Window

U-value

4-20-4 Pilkington Op9therm S3 + Argon + TGI Spacer (black) 0.63 1.3

4T-20-4 Pilkington Op9therm S3 + Argon + TGI Spacer (black) 0.63 1.3

8.8Lam-16-4 Pilkington Op9therm S3 + Argon + TGI Spacer (black) 0.55 1.3

4-20-4 Pilkington Suncool 70/40 + Argon + TGI Spacer (black) 0.43 1.3

4-20-4T Pilkington Suncool 70/40 + Argon + TGI Spacer (black) 0.43 1.3

All Calcula9ons are whole window values to EN ISO 10077-2

6.4Lam-16-6.4Lam Pilkington Op9therm S3 + Argon + TGI Spacer (black) 0.63 1.3

4-18-6.4Lam Pilkington Op9therm S3 + Argon + TGI Spacer (black) 0.57 1.3

6.4Lam-18-4 Pilkington Op9therm S3 + Argon + TGI Spacer (black) 0.57 1.3

6-18-4 Pilkington Op9therm S3 + Argon + TGI Spacer (black) 0.59 1.3

4-20-4 Pilkington Op9therm S3 + Etched Sa9n Obscure + Argon + TGI Spacer (black) 0.59 1.3

4-20-4 Pilkington Op9therm S3 + Cotswold Obscure + Argon + TGI Spacer (black) 0.59 1.3

4-20-4 Pilkington Op9therm S3 + Marine Obscure + Argon + TGI Spacer (black) 0.59 1.3

4T-20-4T Pilkington Op9therm S3 + Argon + TGI Spacer (black) 0.63 1.3

4-20-4T Pilkington Op9therm S3 + Argon + TGI Spacer (black) 0.63 1.3

Handles

Handles are press to release via a buBon with auto latch closure

and are available in locking and non-locking or fire escape ver-

sions. Fire escape versions feature a green push buBon to aid

visibility.

Handles are handed le@ or right for improved ergonomics and

are fiBed with clip-in screw covers.

Handles are BBA approved and manufactured from zinc alloy to

BS EN 12744 and electroplated in accordance with BS EN 12540

and salt spray tested for 240 hours.

Fab & Fix Connoisseur handles available in: Chrome, Brown,

White, Gold or SAA (shown)

Handles


Page 8

Ven+la+on

Allan Brothers have various ven9la9on op9ons to enable the specifier to easily achieve the relevant Building Regula9ons.

The op9on of either a flush finish to the external face suitable for Sco<sh Building Standards and refurb in England &

Wales, or external grilles and drip bead which achieves a higher EA ra9ng for new-build in England and Wales.

XS16 Plas9c Ven9lator

TV90 Aluminium Ven9lator

XHD Plas9c Grille

XS16 Plas9c Ven9lator TV 90 Aluminium Ven9lator

XHD Plas9c Grille XHD Plas9c Grille


Page 9

Layout Drawing

The H Window is fiBed with aluminium boBom beads as standard.


Page 10

Layout Drawing



Page 11

Sec+on Drawings

Solid head op9on when

Ven9lator not required



Page 12

Bars

All H Window bars are bonded to the glass with an adhesive tape.

Allan Brothers can match your fenestra9on requirements.

Bar types can be mixed to enhance the look of the product even fur-

ther.

Most Common Bar PaBerns

Please note other paBerns are

1 x 2

3 x 3 3 x 2

3 x 1 2 x 1

2 x 2 2 x 3

The Georgian bonded bars have an integra bar between the panes, to

give the effect of individual glazing units, making them difficult to

differen9ate from through bars. This also allows the high performing,

drained and vented, glazing system to remain intact and do its job

without having a detrimental effect on the appearance of the product.

Allan Brothers manufacture a variety of 9mber cill extensions

to suit the built in environment.

The cill extensions are all designed with a large radius edge to

ensure good paint coverage.

The underside of the cill extension has rebates to allow con-

cealed fixings and to stop the water travelling back towards

the fabric of the building.

Cill Extensions

Solid 63mm Bars shown on sec9onal drawings

30mm Bonded Bar


Page 13

Op+ons

Standard Op+on

Wood Painted windows: Finger-joint laminated

Stained windows: Solid clear laminated

Colours White RAL colours

Stained (8 different op9ons)

Glazing unit 4 mm Pilkington Op9therm S3 - 20Argon - 4 mm Pilk-

ington Op9float Clear + TGI (Black spacer)

Laminated glass (Op9lam)

Toughened glass

Secure By Design No Yes

Alu Glazing Bead White Natural Anodised

Handles Fab&Fix Connoisseur- White Gold(Brass coloured), Chrome, Sa9n Chrome, Brown

Cill No Yes, 25mm(31), 47mm(53),62mm(68), 87mm(93)

Head drip Yes No

Ven9lators 4 op9ons Titon XS16 4600EA Vent + XS16 364 Canopy

Titon XS16 4600EA Vent + XHD16 Grille + Head drip

Titon TV90 HL 300mm + XHD16 Grille + Head drip

Titon TV90 HL 425mm + XHD16 Grille + Head drip

Solid Bars No 63mm Solid Bar

Bonded Georgian bars No 30mm Bonded Georgian


Page 14

In the closed posi9on, your Allan Brothers H Window windows should be kept locked.

To operate –

- Open handle and push out the sash

- At 35mm the locking system can be relocated giving a night vent posi9on

- At 100mm the internal restrictor will engage and stop the sash (Note this is not a fixed

posi9on unless an op9onal an9-slam device is fiBed on the le@ hand side)

- Release the restrictor located on the right hand side by li@ing up on the latch as Figure 1

- The sash can be fully opened or fully rotated for cleaning purposes un9l the restrictor

mechanism again engages (at approx 50mm from the perpendicular) see Figure 2

- To return the window to its closed posi9on, release the restrictor as before (no9ng that it

will re-engage automa9cally), and rotate the window backwards. When the window is

back in the closed posi9on, the handle should be closed and re-locked.

Ven9la9on -

- If a ven9lator is fiBed, it can be opened by sliding the faceplate to the le@, then 9l9ng

upward or downwards to direct the flow of air.

H Window - Maintenance

If properly installed, the only required maintenance should be to:

- Ensure hinges are kept clean and lubricated, spray hinge joints, locks with silicon spray

a@er installa9on and therea@er twice a year.

- Drained and vented systems drainage gaps should be cleaned regularly.

Coa+ngs Informa+on

If your Allan Brothers joinery products have been fully factory finished and installed cor-

rectly they should be virtually maintenance free.

General cleaning should be carried out regularly (minimum twice a year) using a non-

abrasive cloth with mild detergent and warm water (ph neutral solu9on) to remove any

contaminates, whilst frequently changing the water. Under no circumstances should ag-

gressive, alkaline or acidic cleaners be used. A@er cleaning rinse thoroughly with clean

water to remove all residues, but do not use hosepipes. During cleaning, if any damage is

no9ced then this must be repaired immediately as below.

Repair of Coa+ngs

Should damage occur the damaged surface must be cleaned of any loose 9mber, paint or

stain. If filler is required then flexible two-pack filler should be used. The area should then

be recoated with the appropriate paint or stain colour.

Subsequent Pain+ng / Redecora+on

Under normal environmental condi9ons, your fully finished coa9ng will last for 5

years’ (stain) or 8 years’ (opaque) before it needs to be re-coated. This may vary with loca-

9on, exposure, eleva9on, etc. When re-coa9ng simply clean the 9mber frame and redeco-

rate using a high build micro-porous (MVP) finish.

Figure 1

Figure 2

H Window — User Instruc+ons


Page 15

Specifiers Guide

Ge>ng the H Window Specified

Our H Window range can be specified as the window standard on a project by using this general specifica9on which can be altered to suit

the user’s needs.

• Timber Windows

High performance window/combina9on frame replacement, factory double-glazed and factory finished.

• Manufacturer and reference:

Allan Brothers Ltd. Allan House, Ord Road, Tweedmouth, Berwick-upon-Tweed, TD15 2XU

Tel 01289 334600, Fax 01289 334601, Website: www.allanbrothers.co.uk, E-mail: [email protected]

Reference - Allan Brothers H Window

• Materials generally:

To BS EN 942 (BS EN 13307) Timber species: European redwood from selected sawmills, 9mber sources from sustainable managed for-

ests with a minimum of 70% FSC material

Class BL10 or beBer for all 9mber members

• Preserva+ve treatment:

Organic solvent as NBS sec9on Z12 Table 25 of the Bri9sh Wood Preserving and Damp-proofing Associa9on manual 1999 or equivalent.

Desired service life: 30 years.

Moisture content on delivery: 13 - 19%.

• Manufacture:

To BS 644, Part 1 and 2. Fully weather-stripped.

Constructed in accordance with BS 1186-2.

Adhesive to BS EN 204, Part 1, Group D4.

Exposure category - BS6375, Part 1. - Design wind pressure: minimum 2500 (Pa).

• Security generally:

To ‘Secured by Design’ standards

Windows to be Q-mark accredited to BS 7950 specifica9on for enhanced security performance of windows for domes9c applica9ons.

Supplied by a firm currently holding a ‘Secured by Design’ Licence

• Glazing:

Factory glazed to meet current thermal regula9ons with 28mm double-glazed units, manufactured and kitemarked to BS EN1279 and

factory fixed in accordance with BS6262. Dry glazed system with double-sided security tape and aluminium drained and ven9lated

boBom bead. Where required, laminated glass to meet SBD

• Finish as delivered:

Fully factory finished. Water-borne decora9ve paint or stain finish (colour to be chosen by client). Total dry coa9ng minimum 120 mi-

crons. All decora9ve finishes to have a minimum warranty of 10 years for opaque and 10 years for stain in conjunc9on with the suppli-

er’s recommended maintenance procedure

• Ironmongery/accessories:

To ‘Secure by Design’ standards

All ironmongery to have a minimum 10 year warranty

Hinges: Spilka Classic. Locking: two point shoot bolt ac9on espagnoleBe, key operated locking handles to ground floor and ‘vulnerable’

windows only.

Trickle Ven9la9on: Ven9lators to be fiBed as standard to head of frames to meet statutory requirements.

Handle Specifica9on – Fab n Fix Connoisseur push buBon

• Warran+es 30 years against rot and fungal aBack

10 years against glazing unit failure

10 years against manufacturing defects

10 years on all ironmongery

10 years on opaque finished

10 years on stain finish coa9ngs


Page 16

Delivery, Storage & Handling

Windows, Door sets and ancillary items should be checked upon

delivery to ensure they comply with the order, the delivery is com-

plete and there are no visible signs of damage to the products or to

the protec9ve wrapping.

Our joinery products are delivered on pallets with secure banding

and packaging. Unloading by manual methods should always be

carried out with adequate labour in accordance with current Health

& Safety guidelines, or alterna9vely with the use of a forkli@ truck.

Care should be taken that no damage is inflicted upon the product

by the forks or during the unloading process.

Windows and Door sets should be li@ed by the outer frame, not by

the opening sashes, ironmongery, or decora9ve / solid glazing bars.

They should be carried ver9cally to avoid any tendency to twist or

distort the outer frame and cause damage to the connec9ng joints.

Par9cular care should be taken when handling large or composite

frames. The extended use of metal containers for site storage is not

advised as this can lead to extreme condi9ons being created within,

which will be detrimental to the performance of our products.

Stack inside on at least 3 level, full-width, evenly distributed bear-

ers, in a dry shaded area and keep clear of the ground. If our prod-

ucts are required to be stored outside, ensure they are protected

from the elements with a waterproof cover such as a heat resistant

tarpaulin or equivalent, and allow air circula9on clearance between

products. Where products are supplied on a pallet or shrink-

wrapped, ensure that adequate air circula9on can be allowed to

flow freely to all products on the pallet and avoid storage in direct

sunlight.

Site Guidance

Products should not be stored in a room or building where exces-

sive moisture levels will be present. In par9cular, where plastering

work is to be carried out as the drying of the plaster pushes lots of

moisture into the atmosphere in the room.

Avoid storing our products flat as the factory applied surface

coa9ngs and factory glazing systems have been developed for ver9-

cal or angled drainage away from the weBed surface. Any period of

9me spent with water lying on a horizontal window or door will

cause swelling of the 9mber, poor opera9on of opening/closing and

will invalidate any warranty on that product.

The storage and handling of doors must be in accordance with the

guidance as given by BS 8000 Part 5: 1990.

Protec9ve wrapping should not be removed un9l the products are

ready for installa9on or un9l absolutely necessary. Cau9on must be

shown when using sharp objects such as knives etc. to remove

packaging so as not to cause damage to the product or paint finish.

Regularly inspect the products whilst in storage to ensure the cor-

rect condi9ons are being met and to check the base coat, primer or

finish coats are in good condi9on.

Remove products from pallet by li@ing not dragging, and avoiding

damage to or from projec9ng ironmongery or fi<ngs.

Our joinery products are manufactured to a carefully controlled

moisture content in line with the requirements to BS 942. Should

addi9onal moisture be allowed to come into contact with our prod-

ucts whilst in storage or during installa9on, this may result in distor-

9on or swelling of the products. This could affect the func9onality

of the opera9ng mechanisms or components, leading to long term

or las9ng damage, and possible degrada9on of the overall appear-

ance / finish.

Glazing

All products glazed in our factory undergo strict quality checks be-

fore being installed, and again prior to leaving our factory. The re-

sponsibility is with the installer to ensure that windows and doors

are adequately protected against site ac9vi9es that may pit, mark

or scratch the glass surfaces. Should the glass surface become con-

taminated, do not use sharp instruments or abrasive pads to re-

move the contaminate from the glass surface. Following the revi-

sion to the building regula9ons 1991 Approved Document N1 for

glazing into cri9cal loca9ons, the responsibility is with the customer

to indicate whether factory glazed windows are required to be sup-

plied to conform to cri9cal loca9ons as defined by this revision.

Our 10-year guarantee covers only units that have been factory

glazed and have not been subsequently deglazed. Where joinery is

supplied unglazed, the following recommenda9ons should be fol-

lowed.

• All insulated glass units should meet the requirements of BS EN

1279 and use a dual seal system.

• Methods of glazing should be in accordance with the recom-

menda9ons of the Glass and Glazing Federa9on.

• Glazing rebates and faces of glazing beads that will be hidden

upon fixing should receive a coat of sealer or two coats of the

intended topcoat prior to the intended area being glazed.

• When fi<ng paBerned glass, the smoother of the two glass

surfaces should be to the outside, which will improve the

weather sealing contact to any sealing gaskets.

For further glazing informa9on please refer to: BS 8000 Part 7 1990,

BS6262 Glazing in Buildings, NHBC Standards Charter 6.7


Page 17

Installa+on

Please use guidance from BS8213 Pt4 - Code of Prac9ce for Survey

and Installa9on of Windows and External Doorsets.

All joinery items are recommended to be fi@ed as soon as prac+-

cal aAer delivery to site.

Correct installa9on of our products is vital to ensure proper perfor-

mance now and in the future. All our joinery products should be

fiBed into preformed openings at least 10mm larger (5mm all

round) than the overall frame size and not built in as the work pro-

ceeds.

In 9mber-framed buildings, openings should allow for differen9al

shrinkage as guidance given in NHBC Standards Chapter 6.2S2

If French Doors or Sliding Pa9o doors are to be installed into New

Build loca9ons, then a suitable former should be used to ensure the

opening to receive the frame is square and gives the correct toler-

ances.

Prior to installa9on, if frames have been requested to have only a

base coat stain or primer, it is necessary that the plaster check faces

of the frame be decorated with a coat of external grade paint or a

suitable high build to give the necessary protec9on.

Framed products should be installed plumb and square using metal

fixings or perimeter baBens.

Fixings should not be over 9ghtened and surrounding brickwork

should abut the frame only lightly so as not to distort the frame. We

recommend that frames are fixed using screws through the frame

into the brickwork.

Before final fixing, check that opening sashes have equal clearance

on both sides. Mullions of mul9-light windows MUST be supported

to avoid sagging.

Any packing pieces should be located at fixing points where neces-

sary and should not distort the frame preven9ng correct opera9on

of any opening doors or sashes.

When using gap-filling foams avoid injec9ng excessive amounts as

this may deflect the head & jambs and induce an unacceptable

bow.

Lintels should be kept clear of the head. In replacement situa9ons

reveals should be sterilised before new joinery is installed.

A minimum of two fixing points per side (depending on height)

should be used. These should start between 100 & 200mm in from

the corners. As a rough guide the minimum number of fixing points

in height:

Below 1000mm = 2 per side*

1000 to 1600mm = 3 per side*

1601 to 2100mm = 4 per side*

Over & above = Installer Responsible

*Ground level only

Site Guidance

Do not use our joinery products in any way in order to provide sup-

port for the building or addi9onal support for scaffold and avoid

res9ng ladders etc. against the external faces. A@er installa9on it is

advisable to fully open any doors and windows to ensure that they

do not bind against the outer frame or perimeter reveal. When

installing our tradi9onal Cords & Weights ver9cal slider, care should

be taken to avoid piercing the box with nails or fixings when fi<ng

decora9ve trims as this can interfere with the opera9on of the slid-

ing weights. Any installa9on marks and similar construc9on damage

should be made good and nail heads should be punched below the

surface and filled with suitable filler, fit for the intended working

environment. Where 9mber is cut or drilled, exposed grain must be

liberally treated with preserva9ve, end-grain sealant and the appro-

priate primer or basecoat before fi<ng and finishing. Fi<ng of

doors must be in accordance with the guidance as given by BS8000

Part 5: 1990. Ancillary locks and leBer plates etc. should be fiBed

before the door is hung. If the door is of a type that has been pre-

serva9ve treated any cut or drilled areas for any ancillary locks and

leBer plates etc. must also be preserva9ve treated before hanging

& sealed with a proprietary sealer to prevent water ingress. It may

be advisable that when installing external door sets into severely

exposed areas, considera9on be given to the fi<ng of extra protec-

9on by means of a decora9ve porch or canopy.

If carrying out wet trades a@er our joinery products have been in-

stalled, it is essen9al to provide adequate ven9la9on in order to

dehumidify the area being worked. Failure to do so can lead to the

products becoming saturated in moisture which can lead to adverse

distor9on or swelling, leading to opera9ng difficul9es and high lev-

els of condensa9on to the inside of the glass units.

It is not recommended to install our factory double glazed windows

or French / Pa9o doors in areas of high humidity such as swimming

pools or similar etc.

Any gaps between the outer frame and the reveal, to the external

face, should be filled with a non-se<ng suitably approved sealant

to BS 5889.

150mm Approx.

450mm Approx.Centres



Additional fixings to windows 1800mm wide and above.

150mm Approx.

150mm Max 150mm Max

Additional support under mullions MUSTbe provided.


Page 18

Decora+on & Finishes

The factory-applied coa9ngs are an integral part in the performance

of our joinery products. Pain9ng the products on site will never be

as effec9ve as pain9ng within the controlled environment of the

factory. Failure to properly finish the product with top-coat will

render it vulnerable to fungal aBack and rot and may invalidate the

guarantee. It is essen9al in order to maintain the longevity of our

products, the following guidelines should be adhered to a@er the

products have been delivered. It should be understood that a base

coat stain or a paint primer are in themselves not a seal, and it is

recommended the final finishes are applied well within the maxi-

mum 9mes allowed. If the base coat stain or primer coat has deteri-

orated, it should be lightly sanded and a second coat applied. If grey

9mber is evident, this must be sanded back to bright clean 9mber

prior to the applica9on of a full coa9ng system.

Where joinery is supplied:

· In the white (bare +mber) - prime or stain immediately.

· Primed - undercoat & topcoat within 3 months and protect from

the weather.

· Base stained – second base coat or medium / high build stain

within 3 months and protect from the weather

· Part finished – topcoat within 3 months and protect from the

weather.

Failure to fully coat the joinery (including those areas which will

subsequently never be seen such as the check reveal) within these

9mescales will invalidate the warranty.

It is the responsibility of the person(s) applying further paint or

stain finishes to our products to check for compa9bility with our

chosen supplier’s paint or stain system.

All surfaces should be clean and dry before applying decora9ve

paint or stain coa9ngs, and the surfaces should be lightly denibbed

between coats. Only paints or stains which are suitable for 9mber

and described as moisture vapour permeable should be used. Ad-

vice on the choice of suitable coa9ngs for 9mber can be obtained

by referring to BS EN 927-1: 1997

When a factory fully finished product is supplied, care must be tak-

en that damage to the finished surfaces does not occur during in-

stalla9on as this may invalidate the guarantee. Mortar or similar

must not be allowed to be in prolonged contact with the paint fin-

ish. Any droppings must be removed immediately with water and

the area washed with clean water.

Treatment of doors must include all edges and drilled areas. These

areas can be o@en overlooked and can quickly lead to problems

with moisture ingress leading to failure. Decorate in accordance

with BS 6150: 1991, Pain9ng of Buildings, and BS 8000 Part 12:

1989. Our 9mber products should not be subjected to high humidi-

ty or extremes of temperature prior to the applica9on of decora9ve

finishes. Any finishes applied to our products should be strictly in

accordance with the paint or stain manufacturer’s instruc9ons.

All surfaces of our products should be painted in dry weather and at

the same 9me to help avoid crea9ng a moisture imbalance within

the 9mber. Any further coats should be applied when the surfaces

are dry, and it is advisable to protect these surfaces from the ele-

ments un9l touch dry. Do not allow more than one month between

coats. Timber products with moisture content above 18% should

not be decorated, and it is recommended that close aBen9on be

given to all horizontal surfaces, cills and cill extensions, and boBom

glazing beads. Care should be taken to avoid contamina9ng weath-

erstrips, ironmongery, hinges and other moving parts with paint or

stain as this can cause long term or las9ng damage to the func9on-

ality and performance of our products.

Site Guidance

Ironmongery

All ironmongery to our windows and doors (except chains on

Scotdoors) is factory fiBed where prac9cal. Adequate care should

be taken to ensure that other trades avoid scratching or contami-

na9ng the surfaces and opera9ng mechanisms as this can invalidate

the guarantees. Brick acid and other site cleaning ac9vi9es can

cause corrosion, discoloura9on and pi<ng of the surface of iron-

mongery.

Should the ironmongery become contaminated, use a so@ cloth to

remove any building debris, but do not use abrasive cleaners. If in

any doubt, temporary removal of the ironmongery by competent

site personnel should be considered. Par9cular aBen9on should be

given to brass and chrome fi<ngs, which are vulnerable to scratch-

ing or tarnishing.

Moving parts on hinges and locks may require occasional lubrica-

9on with a silicone-based lubricant.

General Maintenance

It is recommended that surface coa9ngs, glazing and ironmongery

supplied with our products are inspected annually. The decora9ve

finish applied to our products must be maintained in service and

moisture should not be allowed to penetrate into the 9mber

throughout its life.

Areas of general wear and tear such as window / door cills and door

edges etc. should be made good and touched up as necessary. Re-

fer to paint manufactures guidelines for re-applica9on of finishes. If

the product has been supplied fully finished, see Coa9ng Mainte-

nance Guidelines for remedial instruc9ons. General cleaning should

be carried out regularly (minimum twice a year) using a non-

abrasive cloth with mild detergent and warm water (ph neutral

solu9on) to remove any contaminates, whilst frequently changing

the water.

Under no circumstances should aggressive, alkaline or acidic

cleaners be used. A@er cleaning rinse thoroughly with clean water

to remove all residues, but do not use hosepipes. During cleaning, if

any damage is no9ced then this must be repaired immediately.

Bri+sh Standard & NHBC References

Standards and codes of prac9ce that may be of interest are;

BS Code of Prac9ce CP151 Handling and Storage.

BS 8000 Workmanship on building sites:

Part 5 Storage.

Part 7 Code of prac9ce for glazing.

Part 12 : 1989 Pain9ng.

NHBC Standards: Chapter 6.7. January 1999 edi9on – JO8, JO9, Pa4,

Pa5, Pa6.

Chapter 6.2 S2

BS EN 1279 Manufacture of glass units.

BS6150 : 1991 Pain9ng of Buildings.

BS8213 Pt4 - Code of Prac9ce for Survey and Installa9on of Win-

dows and External Doorsets.


Page 19

End Users

Window frames/doors treated with a finishing coat shall be checked annually, the first 9me not later than a@er 2 years. Blistering, cracking,

flaking or if the coa9ng has been damaged in any other way, should be dealt with immediately, as follows:

• Wash the window frame/door with a mild alkaline cleaning solu9on

• Sand away cracked and flaking paint, and scrape off any resin that may have seeped out of the wood.

• Fill any cracks that may have developed in the corner joints of the frame/casing, or on the windowsill, with elas9c filler.

• Spot repair the freshly sanded surface, using an exterior primer as specified below. Repaint the en9re exterior of the win-

dow /door using top coats specified below.

• Interior surfaces normally require no special maintenance beyond an occasional clean with water and an appropriate deter-

gent

Loca9on of the window frame/door in the building, clima9c condi9ons, whether shaded or exposed to the sun – all these factors affect the

finish. A south facing window frame/door will require the more frequent maintenance than its north facing counterpart. Avoid pain9ng in

the rain or when the window frame/door is damp.

Suggested redecora9on cycles for pigmented coa9ng system applied on a 9mber window

Suggested redecora9on cycles for stain + lacquer coa9ng system applied on a 9mber window

*Only dark stain are allowed

This guide is based on EN927-1 (Paints and varnishes – Coa9ng materials and coa9ng system for exterior wood – Part 1: Classifica9on and

selec9on)

Recommended maintenance products:

Acrylic /alkyd paint (for example “Hicksons Décor”)

Applica9on as specified on label and technical data sheet

Coa+ngs Maintenance Guidelines

Construc+on Moderate Climate (This would include non coastal areas

at low al9tude)

Harsh/Rough Climate (This would include area within 5km

of coastline)

Extreme Climate (Any areas of high al9tude, or ex-

posed coastal areas)

Sheltered (e.g. beneath porch or large roof

overhang) 5 Years 5 Years 3 Years

Partly Sheltered (e.g. window built back in reveal)

5 Years 3 Years 2 Years*

Unsheltered (e.g. face of building)

3 Years 2 Years* 2 Years*

Construc+on Moderate Climate (This would include non coastal areas

at low al9tude)

Harsh/Rough Climate (This would include area within 5km

of coastline)

Extreme Climate (Any areas of high al9tude, or ex-

posed coastal areas)

Sheltered (e.g. beneath porch or large roof

overhang) 10 Years 10 Years 7 Years

Partly Sheltered (e.g. window built back in reveal)

10 Years 7 Years 5 Years

Unsheltered (e.g. face of building)

7 Years 5 Years 5 Years


Page 20

Warran+es

The following warran9es are offered as standard on Allan Brothers products.

30 years against rot and fungal aBack on windows*

10 years against glass unit failure on factory fiBed double glazing

10 years against manufacturing defects

10 years on ironmongery**

10 years on fully finished paint systems***

10 years on fully finished stain systems***

* excluding product supplied uncoated

** The guarantee does not cover for any tarnishing that may occur.

*** Fully finished products are guaranteed against peeling, cracking, blistering, premature erosion of the film exposing bare 9mber, flaking,

damage caused by fungal growth within the coa9ng. It does not guarantee against natural resin exuda9on, and movement or extrac9ve

staining around knots.

Biannual inspec9ons should be made as referred to in the General Maintenance sec9on of this document.

Warranty Condi+ons

The guarantee associated with our fully finished products are on the condi9on that:

• The products have been stored & handled in accordance with our guidelines.

• The coa9ng has not been subjected to physical (ladders etc.) or chemical (cleaning agents) damage.

• The coa9ng has been repaired in accordance with the remedial maintenance sheet.

• The coa9ng has not failed due to site glazing or as a result of ancillary items.

• The coa9ng has not failed due to bad maintenance to the building, altera9ons or repair to the building, or by the buildings poor design.

• The coa9ng has not been allowed to accumulate dirt and debris leading to excessive mould growth.

• The coa9ng has not been duly exposed to excessive pollutants (industrial etc.) or heat (fire, hea9ng appliances etc.) or extreme weather

condi9ons.

All warran9es are invalid if the product has not been fully paid for.

All Allan Brothers products are manufactured to exac9ng quality standards, in a controlled environment and it is the responsibility of the

installer to ensure the product is fit for the intended use, has been properly installed, adjusted, used and maintained.

The guarantees may be invalidated if:

• The product has been installed improperly or modified due to improper installa9on.

• The product has failed due to the fi<ng of ancillary items such as window shading devices, blinds, security systems etc.

• The product has been damaged due to improper storage, installa9on, use or maintenance.

• The product has been exposed to performance specifica9on condi9ons beyond that which has been published in our brochure.

• The product has been damaged by water ingress other than through a defect caused by manufacturing, materials or workmanship

• The product has been damaged due to condensa9on, during and a@er fi<ng.

• The product has been damaged due to improper washing or cleaning.

• The product has been damaged during transit on other modes of transport other than that of Allan Brothers standard method of Transport

• The product has been damaged by accidents or acts of god.

The specifier should make Allan Brothers aware of any extreme clima9c loca9ons where the goods will be installed, i.e. islands, headland,

beachfronts and mountain loca9ons as the warran9es may not be applicable in these exposed situa9ons.

Our high performance windows and doors meet the exac9ng standards of BS6375 Pt. 1. “Classifica9on for weather9ghtness”. However in

certain exposed loca9ons, weather condi9ons can exceed these.

In the event of a component or part failing as a result of a defect caused by manufacturing, materials or workmanship, our liability is re-

stricted to the supply of a replacement product, parts, or provide a factory authorised repair to the exis9ng product. No liability is accepted

for any charges for installa9on, pain9ng or storage or any other consequen9al costs.

Warranty

Documents

High Performance Products · Allan Brothers H Window - Technical Guide February 2012 Ver. 1.0 Page 2 Company Background Allan Brothers Allan Brothers, Britain’s longest exis9ng