"Issues and Challenges Sourcing Sustainable Products and Technologies" - Gary Wilburn, HPW Architects

Issues and challenges: sourcing sustainable products & technologies

Gary Wilburn

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SustainableConstructionNetwork

GW-SCN (Draft 2) pres. 15/2/10 09:52 Page 1

Issues and challenges� It is not only building skills and alternative solutions that are the challenge� Avoiding Greenwash!: can only be understood with knowledge� Human behavior, habits and methodologies need to change, this need

not cost money but takes commitment� Embrace the principles of continuous improvement, do not accept convention� Involution: combining innovation and evolution� Proving low energy building performance: Building physics and dynamic modeling


There are opportunities in ALL sectors and not always new-buildHousing retro-fit challenge (Source BERR 2008)

� 80%+ of housing stock in the UK in 2050 already exists� 500,000 houses to be transformed per year at approx £20,000 - 30,000 house for 40 years� 200,000 construction jobs required to support the task� The largest ever UK Engineering Project


Sustainable communities: how many opportunities do we want?

There are examples around the world (even in the UK), get out and see them!

Community-scale wind turbine

Maintained ‘eco-system’

Green roofingFuel-cell bus Waste-to-energy plant

Refurbishment existing dwellings

Combined heat and power plant

Solar shading

Rainwater harvesting

Ground-source heating

High-speed broadband

Sustainable drainage system Car re-charging

Community recyclingZero-carbon dwellings

District heating networkSmart metering


Sourcing sustainable products & technologies


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Building Materials Showroom Austria


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Building Materials Showroom Austria


Case studies: Designing to a higher level


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Passivhaus School Austria


Hammarby ‘cradle to cradle’ strategy


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Hammarby Sjöstad Stockholm


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Passivhaus Construction� Use of bioregionally sourced materials� Manufactured, high quality solution� Off-site modular format� Maximising insulation, minimising energy use� Known technology and construction details


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Ludesch Community Building Austria


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Wolfort Housing Austria


Paultons ParkNew low carbon attraction building

Wildflower roof

Naturally ventilated indoor play area


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Paultons Park - Indoor play area


B&Kcolumn

B&Kcolumn

B&Kcolumn

B&Kcolumn

B&Kcolumn

B&Kcolumn

B&Kcolumn

B&Kcolumn

B&Kcolumn

90

15.8115.79

15.7115.72

5.27

15.37

15.4215

.43

15

15.89

16.00

15.85

15.74

15.67

15.60

15.52

15.51

15.63

15.73

15.66

15.55

15.59

15.63

15.54

15.53

15.51

15.40

15.80

15.71

15.91

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Paultons Park - Technical specifications

WM5 WM6 WM7

WG6

1800 1800 1800 EqualEqual

900 1800 900

252100

1

6 =

boa

rds

2575

Boa

rds

@ 1

25 c

\cs

Timber panels central on window opening

WEST ELEVATION

mez

zani

ne fl

oor

c/l w

indo

w

c/l w

indo

w

c/l w

indo

w

18001800 1800 1800Equal Equal

252100

1

6 =

boa

rds

2575

Boa

rds

@ 1

25 c

\cs

WG5

Timber panels central on window opening

NORTH WEST ELEVATION

Section through south facing eaves(Wall construction not shown for clarity)

Grass & wildflower turf on membrane

Shallow profile roof cladding panels

Kingspan Topspan composite panels

200

circa 900

wall thickness

straight ro

of

curve

d roof

Steel column

Structural supportif required

Structural support@ each gridline(7.1m)

Gutter profile

PPC pressed metal profileflashing to conceal gutter& support beam

Rwp

curved beam

Section through north facing eaves(Wall construction not shown for clarity)

Grass & wildflower turf on membrane

Shallow profile roof cladding panels

Kingspan Topspan composite panels

Steel column

Structural supportif required

Gutter profile

PPC pressed metal profileflashing to conceal gutter& support beam

Rwp

curv

ed b

eam

200


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Paultons Park - Current site images


Visitor CentreTaking full advantage of a 54 acre site, HPW created the concept and developed the Visitor Centre to act as a hub for access to:- 26 acre Country park- 6 permanent mazes- Countryside interpretation exhibition- Retail offer

A purpose built 4,500 sq.ft. timber framed and clad building. In its countryside setting the centre nestles beneath established trees and oversails two lakes to form a gateway to the visitor attractions and complementary retail operations.


Window detail E32-01/1

Wall detail E32-01/2Wall section E32-01/3

Wall section E32-01/4

Window head toE32-01/3

Silicone pointing

75 x 50 vertical counter batten set to take external boarding

External timber boarding returned atwindow reveal. Outside of boarding toline up with outside face of glazing bead.Shape at base to cill

Integrated timber cill

Internal board to returnat window reveal

Soffit over dotted

Timber soffit above shown

Width of windows: 1200; 915

Silicone bead to perimeter of boardingwhere in contact with window frame.Colour : best match for stain colour

2510

150

10

300

glul

am

150

9mm Sterling Board to take curve of wall,fixed with cups & screws in pattern,finish to match boards.

Vapour barrier with sealed taped joints

Insulation

Breathable sarking felt

Treated 50 x 50 sw counterbattens screw fixed

Treated sw battens (provisional 50x32)screw fixed

125x25 vertical sw boarding

All 100x100 RHS post to be INSULATEDwith injected foam

Vertical softwood mullions100mm deep, width to suit span

10mm shadow gap between boards.Face of mullion painted black

9mm Sterling Board to take curve of wall,fixed with cups & screws in pattern,finish to match boards.

Vapour barrier with sealed taped joints

Insulation

Breathable sarking felt

Treated sw counterbattens (provisional 50 x 50)screw fixed

Treated sw battens (provisional 50x32)screw fixed

125x25 vertical sw boarding

300

Circular timber casing to metal post

Circular galvanised collar

250

Curved galvanised edge beam

Glulam beam tapered at perimeter

Curved galvanised edge beam oncurved timber fascia

220

50

4241

NT

S

2750

1491

NT

S

Insulation to both sidesof ring beam

Roof membrane18mm Sterling board102 x 50 battens11mm Sterling board Drainage to be

determined

Floor construction:75mm floor finish (varies in type) on 150 conc slab (by engineer)Insulation Damp proof membrane Sand blindingDOT type 1

450

Foundations by structural engineer

Damp proof membrane behind steel

400

72.925 provisional

73.47573.475Timber decking by Dobbies

Timber double glazed windows

125 x 25 timber external vertical boarding

Boarding to window reveal trimmed towindow cill and sealed with polysulphidestrip

For description see detail E32-01/4

1205

1210

10m

m g

ap

1205

Curved timber sole plate& cladding rails

Curved 200 x 100 galvanisedangle

Sizes & spacings of treatedsw battens by structuralengineer

Coursing block to act as shutter

All window / door posts to be INSULATED with injected foam

Dpm to edge of concrete

1200 or 915 between posts

150

7552

5

73.475

7515

0

External timber boarding returned atwindow reveal. Outside of boarding toline up with outside face of glazing bead.Shape at base to cill

Timber double glazed windows

76.225

Curved timber cladding railsbetween window posts

Internal board to returnat window reveal

40

76.265

15 a

ir ga

p 10

360

glul

am

Curved galvanised edge beam oncurved timber fascia

Curved galvanised infil panel betweenglulam beams. 15mm air gap at top edge

Vapour barrier18mm Sterling board102 x 50 battens11mm Sterling board

Drainage to bedetermined

50

Silicone pointing to window head

T & G boarding to soffit of external roof

235

2750

72.72572.725

76.225

stee

l

Depth of steel by Fordingbridge

5 to

lera

nce

Decking support provisional Decking support provisional

75.910

2512

00

2400 x 1200 boards laidlandscape

10m

m g

ap

300 glulam

75 x 25 timber battens

12mm gap

Soffit board shaped to curve(width varies)

Roof finish build up to detail

5 to

lera

nce

Detail as right

Roof finish build up to detail

50

External soffit level

Approximate existing ground level

Plan @ entrance

15072.925

400

over

all

750

Landing 1 in 60 fall

Ramp

73.475

Treated timber retaining wall

4241

Outer skin:Vertical timber boards 25mm thick on50 x 32 horizontal treated sw battens on50 x 50 vertical treated sw counter battens onbreathable sarking felt on100 x 50 vertical sw battens Inner skin:9mm Sterlingboards on vapour barrieron 25 x 75 sw battens

Outer skin:Curved cladding as specified on50 x 25 vertical treated sw counter battens onbreathable sarking felt on50 x 50 vertical sw battens fixed to100 deep curved sheeting rails @ 1000 c/cs

Insulation:100 rockwool quilt between cladding railsJablite board between 50 x 50 vertical sw battens

Curved flashing to top of boards

Curved flashing to top of cladding

Edge steel by Fordingbridge.Painted finish

Glulam beams chamferred

Curved edge trim to roofto detail

Sterling board internal finish

Exposed radial glulam beams

Umbrella support by Fordingbridge

Floor: (To Wedgewoods specification)175 powerfloated concrete floor onKingspan insulation board ondpm on sand blinding on 150 mintype 1

200 x 100 curved steelangle by Fordingbridge

2750

Decking provisional

Insulation & ceiling boards continues

Air curtain over doorfixed through boardingonto timber bearers

25

Vertical timber boardingabove door to u/side ofglulam beams

2790

str

uctu

ral

2445

ope

ning

130

External boarding to soffits and reveals to line up with outside face of window bead 12

0

10mm drainage gapbetween sarking felt and timber soffit

Insulation to provide U=<0.25

Roof finish to design

General roof make up:Green roof on waterproof membrane oninsulation on vapour barrier on18mm sterlingboard decking on timber joists onglulam beams

55

Fordingbridge curved anglecovered with floor mat

Door frame over showndotted

Internal boarding above doorto be set in by 55mm to coverdoor frame at head

Back corner of door frame seton back corner of steel post

Aluminium threshold fixed toperimeter angle

Edge of perimeter angle

750

1650

Internal boarding above all 1750 doorsset out as plan (right) to cover door head

1100

bottom panel to reception buildingwindows to be obscure glazed to hpw specification

ring beam dotted to illustrate door frame

hd

100

1200

700

Bulkhead over@ 2100

Bulkhead over@ 2100

Suspended ceiling over

Bulkhead over@ 2100

Bulkhead over@ 2445

Bulkhead over@ 2100

Line of wall over

See studio arc dwg110-BA01C for settingout

1445

aav & sp

gully gully

aav & sp

1440

4900

svp

W19

1000 clear

1000 clear

100

500

1200 clear

70

equal

equal70

equal

equal

4275

70.0

1

70.01

70

3 @ 750 c/cs = 2250

2180

1250

cle

ar

1000

115

900

300

1500

70

1230

103090

0

900

1000

1240

300

790

100

7055

115

70

250

70

1825

70

1200 clear

1200

clea

r

70

50

1500 clear

equal

equal

70

50

100

2218

183570

49570

equa

leq

ual

fan

C

1475

Window detailE32-01/1

Wall detailE32-01/2

Wall section

E32-01/3

Wall section

E32-01/4

DX2

DX1

DX3

DX4

DX5

W1 W2

W3

W4

W5

W6

W7

W8

W9W10

W11

W12

W13

W14

W15

W16

W17

W18

D1

D2D3

D4D5

Building section

E22-01/2

Building section

E2 2-01/1

Building section

E22-01/1

Building section

E22-01/2

Wall section

E32-01/4

D8

1030

radial partition

W20

W21

ss sink in 1500 base

wp & aavD9

125900

2999

.99

70

wp & aavgully

ic

1294

490

70

115070

355

90070

D7

70

re

D6 zone 5

zone 4

zone 3

zone 2

zone 1

Retail

female toilets

male toilets

lobby 1

lobby 2

corridor

disabled toilet

classroomwc

wc

wc

3 N

o w

hbs

& v

anito

ry to

p

3 N

o w

hbs

& v

anito

ry to

p

Cubiclesto detail

2 No urinals

Cubicleto detail

Beam over@ low level

hd

hd

1500 clear

staff room

office

1200

1200

mat

2650

750

900

70

equal

equal

600

equa

l

equa

l

Steel beam over (by structural engineer) to provide top restraint to timber posts

Type 3 window1200 x 2450Located centrallybetween glulam beams

Type 3 window1200 x 2450Located centrallybetween glulam beams

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Atherstone Visitors Centre - Concept and construction details


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Atherstone Visitors Centre - Site images


Bicester AvenueAward-winning flagship for Wyevale group (formerly Blooms)

Attention to detail and application of sustainability on a large commercial scheme

FSC Timber cladding, low energy lighting, under-floor heating, porous surfacing, rainwater harvesting and SUDS scheme

Locally sourced materials and waste management procedures adopted throughout the build process

WinnerStore Design of the Year

WinnerRetail Destination of the Year


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Bicester Avenue - Mall entrance


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Wyevale - Main retail atrium


Marwell Zoo Kangaroo and Emu houseAll material found/reclaimed on site

As zero carbon as you can get?


Rooflights Laminated glazing Proposed aviaryTimber Cladding RenderProfile metal sheet roof cladding

Profile metal sheet roof claddingTimber Cladding Render

Timber sections in mesh frame Rooflights

1800mm staggered timber post fence for kangaroo enclosure

1400mm staggered timber post fence for emu enclosure

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Marwell Zoo - Kangaroo and Emu House


Thank you... any questions?DESIGN ZERO DRIVE

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"Issues and Challenges Sourcing Sustainable Products and Technologies" - Gary Wilburn, HPW Architects

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