GIL SCHALOM ARCHITECT PERSONAL PROFILEheavy duty Al / stainless chequer plate sub-cill RB6 with timber packer through-bolted new ﬂoor joists 63 x 150 C16 @ 450 c/c as SE's details

Practice Name: GSD ARCHITECTURE Telephone: +44 (0) 7981 501322

email: [email protected] Postal Address: 9 Patrick Road, West Bridgford, Nottingham, NG2 7JY

roof integrated solar thermal

upper level finishes in progress

A multi-award winning architect with some 11 years post Part III experience, Gil is nationally respected as a highly-experienced specialist in low energy, ecological design for both retrofit and new-build projects. He is also experienced in the heritage sector and site master planning. His varied portfolio showcases a range of clients across the UK from commercial, community, charity and domestic sectors.

Gil’s passion for green design was sparked at Nottingham University under eco gurus Robert and Brenda Vale. In his year out, Gil worked hands-on at their ground breaking Hockerton Housing Project. Gil isn’t just a designer of green buildings he is also a pioneer of the eco retrofit movement. He co-owns the Nottingham Ecohome the UK's first significant whole house eco renovation of a Victorian Villa.

Gil strongly believes in the power of exemplars to transform society and in the importance of communicating and sharing information as widely as possible.

Over 1,000 people have visited his home which has been featured numerous times on TV and in international press.

Having advised many clients during his 12.5 years at heritage specialists MSA, he has been running his own practice since 2010. Recent projects include:

• Several eco extensions in and around Nottingham

• two whole house retrofits in Nottingham, designed with the super-efficient Passive House methodology and to the EnerPHit standard, each costing less than £200 / year to heat - a reduction of over 85%

• a multi-award winning community new-build teaching and site facility for Arkwright Meadows Community Gardens

• St Nicholas Church refurbishment, Nottingham, CAD / second project architect,

• a domestic extension for private clients to help cater for their young daughter with severe disabilities.

• energy saving measures for a Grade II listed farmhouse, Norfolk and redevelopment of associated farm buildings.

• A whole house energy renovation of a 19th C farmhouse in the Peak National Park for the Peak Park Authority

Gil is a long standing member of the AECB, the green building organisation and currently runs the Nottingham/ East Midlands AECB Local Group.

Key awards:

DECC Retrofit Pioneer 2012

Sustainable Water Industries Group Award for Domestic retrofit 2013

Notts Wildlife Trust Environmental Business 2013

GIL SCHALOM • ARCHITECT • PERSONAL PROFILE

PROFILE GIL SCHALOM • GSD ARCHTECTURE

DWG TITLE " Construction Section BB

DWG NO.! N1006 / 103 REV ! ! ! THIS ISSUE 27/1/12FIRST ISSUED

PROJECT! 72 Harow Road, W/BridgfordCLIENT! Tina Holt & Richard MiddupDWG SCALE! 1:20 @ A1

GIL SCHALOM DESIGN ARCHITECTURE AND GREEN BUILDING ADVICE 9 Patrick Road • West Bridgford • Nottingham • NG2 7JY

T 07981 501322 • E [email protected] Do not scale: refer to figured dimensions * Dimension to be checked on site

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450

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250

existing rainwater goods reused as far as possible

proprietary insect proof eaves ventilatorproviding equivalent of 10 mm continuous gap

38 x 50 counterbattens, either treated sw or durable species to approval

Vapour permeable roof underlay membrane e.g. Pro Clima Solitex Plus, taped withappropriate Pro Clima tapes and sealed to walls and edges

with Pro Clima Orcon F adhesive for a completely air tight seal

Rafters 50 x 150 C16 @ 450 c/c as SE's design

38 x 25 battens, either treated sw or durable species to approval

proprietary insect proof lean-to roof abutment ventilatorproviding equivalent of 5 mm continuous gap

lead or lead replacement abutment flashing each side of windowsand dressed into reveals (agreed and coordinated with EWI contractor)

Crown Rafter Roll 32 enhanced glass fibre insulation between rafters

1 no. layer 60 mm Celotex GA4060 insulation board or equal - temporarily fixwhile membrane is fixed and taped - then fixed to rafter underside

through 25 x 38 mm battens using Helifix fixings to manufacturer's specification

maintenance free fascia to be agreed

insulation between roof board and cill as EWI

infill to raise cill height using reclaimed / 2nd hand brickwork

new gable wall masonry 140 mm blockwork with 1:1:6 opc : hydrated lime : sand gauge mortar

Beam 101 140 x 140 mm proprietary concrete linel as SE's design

OSB3 / plywood box lining to support frames pushed 90 mm forward into insulation zone, provisionally 12 mm thick subject to mock-up

polyester powder coated aluminium cill with side upstands

Typically, timber window boards

Vapour permeable roof underlay membrane e.g. Pro Clima Solitex Plus,taped with appropriate Pro Clima tapes and sealed to walls and edges with Pro Clima Orcon F adhesive for a completely air tight seal

120 mm hi performance rigid insulation board between rafters e.g. Celotex GA4120, joints oversized and filled with expanding foam

Rafters 75 x 125 C24 @ 600 c/c as SE's design

100 mm Celotex GA4100 insulation board or equal

Pro Clima Intello intelligent vapour control air tightness membranetaped to high air tightness standards throughout. Note sequence on detail drawing

additional local ridge / beam insulation Celotex PL406565+12.5 mm plasterboard laminate or better

adjoining flat roof joists

flat roof inclined with cross-firrings fully filled with flexible insulation

line of adjoining roof deck Post P1 / P2

cranked beam RB4, hung from ridge to SE's detailscranked beam RB5,

supporting ridge to SE's details

Purlin Pn3 spanning from P1 to RB6 (via post) and cantilevering beyond, all to SE's details

post supporting Pn3 on RB6

some front facing rafters carry down to RB6 and support north facing dormer rafters as SE's details

valley flashing material to be agreed (provisionally lead), supported off 18 mm osb raised clear of membrane taped beneath

increase thickness of screed edge insulation to 50 mm where service void present

25 mm battened service void and 12.5 mm plasterboard & skimfitted after air tightness test and remediation

25 mm battened service void and 12.5 mm plasterboard & skimfitted after air tightness test and remediation

cranked beam RB3 connected to and supporting Beam RB1 as SE's design

studwork infill between beam and head of window, fully filled with Crown Rafter Roll 32 / Frame Therm 32

25 mm battened service void and 12.5 mm plasterboard & skim fitted after air tightness test and remediation

insulation under beam downstands

1 no. layer 60 mm Celotex GA4060 insulation board or equal fixed to rafters throughcounterbattens using Helifix fixings to manufacturer's specification

NB items joining ridge line obliquely shown as such - do not scale depths from here

NB wall cladding changes from brick slip totimber boarding above first floor windows(bay only)

±0.0000 Story

+2.6301 Story

+5.1352 Story

D1

3,69

2

17.5°

tilting fillet, timber as battens

Beam 003 to SE's design with timber packers each sidethrough bolted

Beam 002 to SE's design, placed so as to afford a flush finish with existing ceiling,lined with 12.5 mm plasterboard & skim for 30 minute fire protection

Beam 001 to SE's design, placed below joists with bolting detail fixing to u/s of Beam 002,with option to cut into joists and place within floor zone,

lined with 12.5 mm plasterboard & skim for 30 minute fire protection

set back this glazing so outer face lines up withouter face of blockwork (as these are heavier)

18 mm OSB3 support cut into top of rafter andscrewed down

trench fill footing to SE's specification

weepholes @ 450 mm c/c

100 mm concrete blockwork on side with 1:3 opc : sand mortar

EWI to separate specification (below dpc)

EWI to separate specification (above dpc)

140 mm AAC thermal block with conductivity of 0.11 Wm-1K-1

or better, e.g. Thermalite Turbo block to entire height offloor build-up, changing to regular blockwork above dpc

140 mm wide Marmox Thermoblock first coursehttp://www.marmox.co.uk/products/thermoblock

expanding foam to fill gap

OSB3 cill support (min. 18 mm) fixed to blockwork

dpm lapped up and over to form dpc

heavy duty Al / stainless chequer plate sub-cill

RB6 with timber packer through-bolted

new floor joists 63 x 150 C16 @ 450 c/c as SE's details

100 mm Rockwool Flexi insulation between joists with chicken wirelaid over insulation and joists to achieve modified 30 min. fire rating

floor boarding provisionally reused boards from ground floor

140 mm wide Marmox Thermoblock first coursehttp://www.marmox.co.uk/products/thermoblock

EWI to separate specification (below and above dpc, brick slips)

140 mm AAC thermal block with conductivity of 0.11 Wm-1K-1

or better, e.g. Thermalite Turbo block to entire height of floor build-up, changing to regular blockwork above dpc

dpm lapped up and over to form dpc

studwork base plate bolted through to blockwork

11 mm OSB3 fixed to outer face of studwork. Taped for air tightnesswith Pro Clima tapes. Outer face to line up flush with blockwork soEWI carries through. NB subject to EWI contractor's comments

140 mm x 50 mm studwork @ 600 c/c fully filled withCrown Frame Therm 32 / Rafter Roll 32

11 mm OSB3 fixed to inner face of studwork. Line interior face withPro Clima Intello membrane, taped for air tightness with Pro Climatapes and vertical / edge joints coinciding with batten positions forpermanently compressed joints

outer 90 x 50 mm studwork @ 600 c/c

inner 50 x 50 mm studwork @ 600 c/c in line with outer

11 mm thick 250 x 300 mm osb plates on alternating sides@ 800 c/c max. linking inner and outer studs

fully fill void with Crown Frame Therm 32 / Rafter Roll 32

11 mm OSB internally, supporting Pro Clima taped Intello memrane, sealed for air tightness

11 mm OSB internally, supporting Pro carried-over Pro Clima taped roof membrane sealed for air tightness

PROVISIONALLY 80 mm Pavatherm Plus t & g wood fibre boardheld with through-fixed 25 mm vertical battens

clear ventilation void covered with insect mesh

soffit cladding in matching timber, thin layer, adhesive fixed

phenolic / pir insulation infill

12 mm flat plate welded to beam u/s to support rafters while retaining flush soffit

Pro Clima Intello intelligent vapour control air tightness membranetaped to high air tightness standards throughout. Agree sequence in detail -

e.g. carry out air tightness test before fixing plasterboard

25 mm Spacetherm aerogel insulation backedplasterboard soffit under steel beam

BB 1:20

DRAFTA

This was an early 1950s detached house of 90 m2 and east-west orientation. The external walls were solid and the property was virtually un-renovated since it was built, with the original kitchen and fireplace stoves. One of the few previous additions was a gas boiler and central heating, which was old and failing. The windows were original timber single glazed and had taken in water, expanded and would not open. This was compounding the already cold and damp conditions which the clients had to endure for two winters. This experience galvanised the clients into wanting to carry out a more radical energy retrofit.

GSD was commissioned initially to thermally model the building using SAP and identify possible measures. The PH modelling revealed that despite the unfavourable orientation it may be possible to achieve the new PH

retrofit target, EnerPHit subject to air tightness. The PH modelling allowed us to optimise the measures and adapt the approach to the practicalities on site.

First some internal walls were removed and rear openings altered. The original ground floor was mostly suspended timber with solid floor under the kitchen, This was all removed and excavated to allow a 300 mm thick new layer of Platinum EPS insulation, including provision of vertical downstand insulation all the way down to the footings against all retained walls to reduce thermal bridging. A new concrete slab and screed followed, with each layer carefully sealed with expanding foam / special tape for air tightness. The extension was treated similarly, except for the use of structural insulation in the blockwork instead of downstand insulation.

With the roof the original idea was to provide a room-in-the-roof loft conversion by adding a new dormer and a hip-to-gable conversion. Given the amount of work required to the existing, it was later decided that it would be better to remove the whole roof and start again. All new steelwork and deeper rafters were installed with 100 mm rigid PIR sarking insulation fixed over the rafters through couterbattens. The roof underlay acted as a secondary air tightness membrane and was taped throughout including a special cleaved detail at the eaves which ensured both air tightness and correct water runoff. The rafter zone was insulated with enhanced performance glass fibre insulation and then under drawn with a taped primary air tightness vapour check membrane. This was left exposed for the first air tightness tests so leaks could be accessed and put right.

Location: West Bridgford, Nottingham Clients: Private

Contract Value: £200 K Completion: October 2012

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any retained walls receive vertical edge insulation down to footings on both faces

AS BOUGHT rear view from southwestAS BOUGHT front (east) face AS BOUGHT swollen windows wouldn’t open leading to condensation and mould growth

300 mm thick layer of floor insulation & junctions filled with expanding foam

extension edge detail with different edge insulation

extension slab freshly laid onto membrane over insulation

PASSIVHAUS WHOLE HOUSE REFURBISHMENT

PROJECTS GSD ARCHTECTURE

Chimneys were removed, including external breasts all the way down the wall. Abutment and eaves details had to be carefully designed and planned to minimise thermal bridging and on-site full size mock-ups were used to refine these. Windows and doors were from the Ecopassiv range at Green Building Store and contain a sandwich of insulation within the timber frames and are factory finished with two seals, triple glazing and paint. The walls were clad externally with EWI (external wall insulation in 2 layers of 90 mm phenolic foam with a thinner layer taken below ground to footings. Windows and doors were mounted in plywood surrounds that pushed

them 90 mm into the EWI zone to maximise efficiency. The second EWI layer additionally covered some of the frame edges to further improve performance. All openings were made inward to facilitate this detail. EWI was finished mostly in white render but the planners insisted on some brick appearance on the front. The circular bay was rebuilt rectangular to assist detailing and this new bay had its EWI finished with brick slips less than 10 mm thick. Some European green oak cladding was used to accent the materials on the gables. Internally, walls were wet plastered for air tightness and special lap details created at the eaves and floor

junctions to ensure even better seals. Air tightness testing identified the less obvious leakage areas initially missed and most were put right before covering over window reveals and sloping ceilings with plasterboard. The final AT result was around 1.1 ach which is just short of the PH target of 1.0. The clients may make further improvements and go for certification in due course. The heating is conventional gas boiler with 5 small radiators. 3.25 kWp PV on the south side provides more income than the entire energy costs of the house so the house is cost-positive. The skylight is quad glazed and PH certified by Fakro.

Thermal Modelling: SAP/NHER, PassivHaus Planning Package, Therm PHPP Modelled Space Heating Target: 25 KWh/m2/year

(Retrofit target = 25 and New Build = 15KWh/m2/year) External Joinery:Green Building Store Ecopassive (PH Compatible)

MVHR: PAUL Focus 200, galvanised ductwork

PASSIVHAUS WHOLE HOUSE REFURBISHMENTType to enter text

concrete slab in place with edge insulation and careful air tightness taping ready for screed

beam penetrations at eaves taped to primary air tightness membrane, itself worked into the wall plaster

careful taping for air tightness in progress by client / air tightness champion

secondary airtightness layer and cleaved couterbatten detail

all-new roof structure

150 mm rafter zone insulation

finished loft area

MVHR ductwork in utility lean-to ready for insulation

gable external wall insulation - second 90 mm phenolic foam layer in place overlapping window frames, themselves insulated

eaves detail mocked-up and refined on site

lean-to utility area in brick and oak with primary MVHR vents

PROJECTS GSD ARCHITECTURE

Location: West Bridgford, Nottingham

PASSIVHAUS WHOLE HOUSE REFURBISHMENTType to enter text

south facing roof with PV and quad glazed skylight

extension interior

street view

open plan space used for training days

rear view

While this house achieves energy savings of over 90% and is also ‘cost-positive’, the benefits of the Passivhaus approach have been far more than financial. Year-round comfort levels are very high and robust construction and modelling

has removed the performance gap whereby buildings tend to use more energy than predicted. Here the reverse is true, with the first year computing at 27 kWh/m2.year and second year at 23 kWh/m2.year. This pioneering

extreme energy refurbishment has succeeded in providing a larger modern dwelling (140 m2) which will meet the needs of the occupants well into the future and provides a strong aspirational model for future energy refurb.


Location: Arkwright Meadows Community Gardens, Nottingham Clients: AMCg

Contract Value: £220 K Completion: October 2012

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old hut remains open while excavations are underway

The original conceptThe gardens before the building - with container office

ground improvement involves laying layers of stone and compaction

highly reinforced raft with stepped edge

SUSTAINABLE COMMUNITY GARDEN SITE FACILITY

Gil was engaged in 2006 after winning a limited competition to design a green site facility for a community garden. The group were in receipt of a feasibility grant from the National Lottery. The scheme was developed with no budget stated and initially included various technological as well as fabric features. After costing and the group’s attempts to gain funding it was agreed to streamline the design to its essence while retaining its most important features. This crystallised a ‘fabric-first’ approach whereby optimising insulation, thermal mass and air tightness and providing heat recovery ventilation the combined build and running costs can be minimised. Among the non-essential measures that were discarded were solar thermal, mains gas connection, heat pumps, wood stove or boiler, central heating, timber frame or straw bale walls and a living roof. The project would prove to be all

the richer and more elegantly eco-minimal.

A grant was finally secured from the Big Lottery Local Food grant, topped up by a landfill grant in 2010.

As the initial feasibility budget did not allow for early ground testing the initial costings on which grants were awarded assumed normal ground conditions. Unfortunately when pre-construction ground testing was carried out conditions were found to be very poor due to previous development. This meant that standard footings would not be adequate and there would be no way of asking for more money to cover anything more elaborate. So various options were considered including piles and very deep trench footings. A thick highly reinforced concrete raft in combination with a process of ground improvement was chosen for cost-effectiveness and ease of low-energy detailing.

Construction finally started in Autumn 2010 and the gardens remained open throughout the build.

The reinforced raft was stepped at the edges to allow the brickwork to extend down to ground level while the internal floor is elevated to reduce flooding risk. A flood-resilient plinth was constructed with exposed brick and higher grade insulation and plaster. Floor insulation was laid over the raft followed by Eco Screed. The internal blockwork walls included structural insulation strips at their bases to reduce thermal bridging. The walls and floor serve as giant background heat stores which moderate internal temperature fluctuations and maximise the usefulness of passive solar gains.

External windows and doors were manufactured locally in exposed Douglas fir to bespoke advanced specifications including high spec triple glazing with plastic spacers,

highly insulated cavity wall with flood-resillient plinth


two weather seals for air-tightness and wheelchair accessible thresholds. All are inward opening to allow the recessed external reveals to be insulated to further improve performance. External cills are powder-coated metal for the windows and chequer plate anti-slip aluminium for the doors. Window surrounds were sealed internally with membranes and air-tightness tape worked into the plaster finish to complete the seal.

The flat roof was constructed with 300 mm deep engineered timber i-

joists. These can be cut in certain locations which usefully meant that the heat recovery ductwork could be fitted within the joist depth, as could other services. The roof air tightness membrane was placed above the structure so that these services do not compromise it where they penetrate. 300 mm Platinum EPS insulation on an OSB timber deck above the joists complete the highly insulated envelope and the weathering layer is single ply membrane which could take a green roof in the future. The

overhanging roof edge is formed into a timber parapet clad in untreated Scottish grown European green oak which will gradually weather to a silvery colour.

Heating is minimal and provided more by internal and solar gains than by the backup direct electric radiators. The efficient heat recovery unit is virtually silent, costs £20/year to run and recovers around 90% of the heat normally lost in natural ventilation and air leakage.

Funding: Big Lottery Local Food award, Biffa fund Lighting: Fluorescent strips. CFLs and LEDs, occupancy sensor in WC

Air Tightness: 1.35 m3/m2.h @ 50 Pa MVHR: Itho ECO 4 with rigid plastic ductwork

Heating / Hot Water: direct electric Cooking: Bottle gas PV: 2.5 kWp on ballasted trays laid on roof

SUSTAINABLE COMMUNITY GARDEN SITE FACILITYType to enter text

roof timber i joists in place on thermally massive walls

rigid heat recovery ductwork concealed in roof joist depth

structural insulation strips at base of

internal walls

external cill detail

lobbyflush edge of sliding door teaching / serving kitchen

windows receive insulated surround

completed office with exposed glulam beam and Douglas fir trim

opening being prepared for large sliding door MVHR unit in place

transparency and elegance


Substructure / Floor: ground improvement compaction, sub-slab, 300 mm insulation thick reinforced concrete raft, edge insulation, Eco screed

Walls: Cavity walls with 250 mm insulated cavity Roof: 300 mm i joists, 300 mm Platinum EPS insulation, single ply membrane

External Joinery: Locally made Douglas fir triple glazed, plastic spacers, two seals, insulated reveals

SUSTAINABLE COMMUNITY GARDEN SITE FACILITYType to enter text

south facing roof with PV and quad glazed skylight

extension interior

street view rear view

PV panels are laid on special plastic trays that are ballasted with gravel on the roof so that they are secured without piercing the roof. Lighting is provided by good daylight and a mix of fluorescent bulbs and LEDs. Very good air tightness allows the building to perform as efficiently as predicted

with constant year-round comfort, low running costs and sense of wellbeing. The building is successfully used for day-to-day running of the gardens, training and demonstrations, social and event space as well as hire room for the wider community. It is popular with staff, volunteers and

visitors alike with its sense of elegant transparency and site integration shining through. The garden has won several awards including local Notts Wildlife and Nottingham Post awards, and most recently a national award for Best Community Garden.

main passive solar spacemain entrance from straw bale tandur oven pavilion main entrance

apple pressing day


PROJECTS! GIL SCHALOM DESIGN

Originally a Victorian coach house to the nearby manor house, this building was converted to a dwelling after the war. It subsequently received a major renovation in 1990 when an upper floor within a masard roof was added, bringing its floor area to around 150 m2. The current owners bought the property with the idea of carrying out an advanced low energy refurbishment. GSD was involved at every stage, from advising on potential strategies pre-sale to handover and beyond. As the house is within a conservation area, it was decided that the

majority of the energy efficiency measures would be applied internally so as to preserve and enhance the beautiful exterior. Key to the ultra low energy strategy was to super-insulate without major gaps. This would mean gutting the existing house removing all cold-bridging cross walls and leaving only the upper timber floor in place. Once this was agreed it paved the way to remodel the whole interior with the Passivhaus target as the driving force. Some 500 mm of insulation in the loft, upto 270 mm on the walls and 250 mm in the brand new ground floor, plus triple

glazed windows with insulated frames line the historic structure. Two air tightness barriers and a lot of attention to detail coupled with Mechanical Heat Recovery Ventilation, have made it possible to avoid central heating. A wood burning stove is used for backup. Roof integrated flat-plate solar thermal panels contribute to hot water demand and PVs are planned for the out house roof.

LED spotlights have been used throughout, including some dimmable, while cooking is via induction hob and electric oven, so no mains gas is needed.

Location: Mapperley Park Conservation Area, Nottingham

Clients: Private

Contract Value: £160 K

Completion: Early 2011



upper level finishes in progresshistoric exterior

new openings being formed in mansardexterior from SW as bought

new front doornew north windows in progress


Water efficiency has also been considered with spray taps and ES4 leak free 4 litre flush WCs.

The PassivHaus Planning Package methodology was key to the design development and a PHPP consultant was appointed to model the measures and construction details. This revealed not only that a space heating target which exceeds the new PH retrofit standard was possible but that a result within 20% of the PH new build standard was possible. Insulation was increased in some areas and some of the junction details were further improved to reduce thermal bridging. Existing south facing window openings were enlarged and new ones added to maximise the passive solar gains.

The PassivHaus approach is robust and its dependability has been proven through many monitored case studies. It is a

quality assured methodology that just works.

A major resource for this project was the Green Building Store who designed, supplied and commissioned the PAUL MVHR system which is over 90% efficient, as well as supplying the PH compatible joinery, air tightness membranes and tapes. Service voids in the multi-layered construction allowed for penetrations through the membranes to be minimised and sealed at least twice.

Despite the addition of some renewables, the clients understood the most effective investment would be in the largely unseen elements of the fabric of the building; these will continue to work passively and innately long into the future.

The unique nature of this project meant that attention to detail was

key. It also required tight site supervision, inventiveness and a real sense of teamwork with the client and contractor to fully realise such an ambitious project.

The result is a stunning two bedroomed, eco minimal dwelling that expresses the clients’ vision of their home and lifestyle. The ground floor houses the sleeping quarters and bathrooms. A bespoke timber feature staircase leads to the upper level. The main living area is open plan containing study, lounge and kitchen areas. High performance sliding doors lead from the living floor out onto a balcony to access the upper garden. The whole impression is of space, airyness and simplicity. Much of what makes the house work on an eco level is hidden, allowing greater flexibility in the use of space, both now and over time.

Thermal Modelling: PassivHaus Planning Package, Therm

PHPP Modelled Space Heating Target: 18.5 KWh/m2/year

(Retrofit target = 25 and New Build = 15KWh/m2/year)

External Joinery: Green Building Store Ecopassive (PH Compatible)

MVHR: PAUL Focus 200, galvanised ductwork


front room before work started

upper level in progress showing service voids, insulation and air tightness

ground floor in progress showing curved bathroom wall

low thermal bridge studwork

insulation and air tightness between floor joists

beam penetrations taped to air tightness membrane

MVHR ductwork new Ecopassiv windows


Location: Mapperley Park Conservation Area, Nottingham


south side view east side detail

interior vie facing front door and stair

en suite wcsolar hot water

and heat

recovery

ventilation

interior view facing courtyard

new window detail south side

wood stove occasional heating stair and front door


When the clients, a young family in Derby, approached GSD Architecture they were looking to extend their modest Victorian terrace to give them substantially more room, with a view to upgrading the existing poorly insulated house later. As well as appreciating the benefits of robust low energy design they were very interested in natural ecological construction and finishes, so the challenge was to marry the two, satisfy the planners and keep the budget down. The clients had been on straw bale building courses and were keen to carry out the project as a self-build with much of the work done by them. The design consists of a two storey timber framed structure,

infilled with a mixture of super insulated timber frame and straw bale walls, triple glazed windows and finished with a wild meadow roof. The roof is flat, with a sloping triangular corner, designed to reduce impact on the attached neighbours, into which is placed a bank of triple glazed skylights.

Despite its unusual and radical appearance the planners praised the design and passed it without any issues, showing keenness to support such a forward looking project.

The detailed design also includes whole house heat recovery ventilation (MVHR), great attention to minimising thermal bridging,

and careful use of membranes and tapes to achieve a very air tight space. The timber for the main frame was sourced near Sheffield and much of it will be left exposed internally.

Construction began in summer 2010 and is expected to be complete by the end of 2015. The roof planting was plug planted with native species and sedum in 2012 and is now established. It provided a useful shelter for storing vulnerable materials such as straw bales As of July 2015 much is progressed or finished but there are a few items to finish off and much to clear. The clay plaster was mixed from clay dug on site.

Location: Derby Clients: Private

Procurement: Self build Completion: 2015

ECOLOGICAL ULTRA LOW ENERGY EXTENSION



heavyweight British timber frame

exterior from SW as bought

roof in progress interior in progress

Larsen truss timber walls in progress straw bale walls in progress

interior view looking up at mezzanine level




MVHR ductwork

ECOLOGICAL ULTRA LOW ENERGY EXTENSIONLocation: Derby

Clients: Private Procurement: Self build

Completion: 2015

clients standing in the kitchen to be

client standing on roof with view of nearby church

rear view in progress


ECOLOGICAL ULTRA LOW ENERGY EXTENSION

July 2015 in progress photos:

Above: waney edge boarding and lime render on straw bales advanced. Roof edge cladding and top coat render still to be done

Below: exterior detail (Juliet balcony and roof edge yet to be done) and ground floor interior looking outwards

Below: Interior. Clay plaster made from clay dug from rear garden. Steel and glass interior balcony contrasts with natural materials.


Location: Selby Road, West bridgford, Nottingham Clients: Private

Contract Value: £70 K Completion: April 2014

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finished extension and kitchen

steel and glulam frame supports bay above

Rear of Edwardian house before extension

REAR KITCHEN EXTENSION

The clients needed a kitchen extension that was warmer, maximised daylight and views of the garden while working within the context of a period property. They also wanted a utility laundry room that linked to the rear of the garage.

A delicate balance is stuck between well insulated solid surfaces and glass. To achieve maximum comfort and efficiency levels the glazing has to work hard. All high spec triple glazed

from the Green building Store with overall U value of 0.81 (twice as insulating as Building Regulations require), the large sliding doors weigh in at 300 kg and special planning was needed to install. They are timber, painted externally and clear coated internally. A steel and glulam frame supports the bedroom bay above to allow opening up below. The extension and original kitchen received new insulated solid floor with underfloor heating to free up the space and ensure efficient

comfort. Stone tiles unify the space. The new walls are well insulated and air tight timber frame finished with untreated green oak. Roof is finished with recycled plastic interlocking slates and a motorised triple glazed skylight.

The result is elegant, light and transformative with a delicate blend of hard and soft, opaque and transparent. The panoramic views without compromising comfort and finishes make this a delightfully sensitive intervention.

highly insulated and air tight timber frame construction

transparency and elegant detailing

finished extension with stone floor

extension before decoration

panoramic view of the garden

utility

The client wanted to carry out an energy efficiency refurbishment on a single room and it was logical for this to be the living room as this is the room where most time is spent. She also wanted to remodel and update the fireplace / TV area. Measures undertaken:

•High performance suspended floor insulation and air tightness.

•High performance laminate internal wall insulation and window reveal air tightness and insulation.

•Roof insulation in lean-to part including insulating beam.

•New fireplace with efficient fire, radiators replaced with smaller.

•Single glazed side windows replaced with new timber double glazing incorporating the original stained glass panes.

Location: West Bridgford, Nottingham Client: Private

Procurement: Traditional Contractor Completion: 2012 Cost: Approx £10K



Living room before Living room before

Walls and reveals insulated internally and sealed for air tightness ready for timber lining

Timber floor membrane and insulation in progress

Old fire removed and wall insulation ready to be applied

High performance insulation in progress under window boards

SINGLE ROOM ENERGY EFFICIENT REFURBISHMENT




MVHR ductworkclient standing on roof with view of nearby church

Finished view showing new fireplace and side windows - result unobtrusive with energy efficient elements largely invisible - room much warmer in Winter than the rest of the house with little heating required. Client so happy with result she wants to buy a laptop so she can also work in the new living room. Attention to detail and good workmanship makes a big difference to finished result.

New rear window boards with insulation hidden underneath

Recent double glazed rear windows retained, side windows replaced incorporating old stained glass

Location: West Bridgford, Nottingham Client: Private

Procurement: Traditional Contractor Completion: 2012 Cost: Approx £10K

SINGLE ROOM ENERGY EFFICIENT REFURBISHMENT


`PROJECTS! GIL SCHALOM DESIGN

The clients have lived in their classic Victorian villa for over 30 years and approached GSD Architecture to prepare a design for an extended kitchen and entertaining space.

The rear of the existing house narrowed for the kitchen, leaving an adequate but not generous terrace to extend into. The design allows for the extension with a reasonable path width to the side. A timber frame wall construction was favoured for its ecological advantages coupled with its ability to achieve better insulation within thinner construction than masonry. The Timber cladding is Scottish grown FSC certified green oak

with fixings hidden behind timber plugs. The roof has a gentle 9º slope to avoid the upper floor windows of different heights and is finished with the thinnest and lightest type of green roof - sedum - which is also very drought resistant and offers very low maintenance. Flush triple glazed skylights bring more light into the centre of the plan and triple glazed windows capitalise on the views and the solar aspect. While oak is durable without any treatment, the clients preferred it to stay as its original colour rather than fade to a silvery grey so chose to coat it in a light stain.

The result is a modest extension that marries well into its context and compliments its parent building rather than attempting to compete. Internally, the feeling is of spaciousness, views and a good balance between natural light and solid surfaces. The clients are delighted they now have the space to entertain their friends and family and feel it has transformed the way they live.

SMALL LOW ENERGY EXTENSION



heavyweight British timber frame roof in progress interior in progress

straw bale walls in progress

Location: Lady Bay, Nottingham

Clients: Private

Procurement: Traditional

Contract Value: £70 K plus VAT

wall linings and stepped roof in

progress wall linings and roof in progress

green oak cladding before

staining

view from upper room over

new roof

rear view complete front view facing drive




MVHR ductworka space for entertaining - looking from rear French

windows to old part of the kitchen

SMALL LOW ENERGY EXTENSION

Location: Lady Bay, Nottingham

Clients: Private

Procurement: Traditional

Contract Value: £70 K plus VAT

looking from the original living room into the extension

Documents

GIL SCHALOM ARCHITECT PERSONAL PROFILEheavy duty Al / stainless chequer plate sub-cill RB6 with timber packer through-bolted new ﬂoor joists 63 x 150 C16 @ 450 c/c as SE's details