Design, Convert and Build Work

Environmental Preference Schedule Of Construction Elements Contd.

Environmental Preference Schedule Summary Adopted at The Fold – Shaded Grade Solutions were adopted at The Fold.

	Grade
Item	Ultimate Aim	Good Practice	Acceptable Solution	To Be Avoided
Builders Waste	no export at all from site	sorted into recyclable rubble /timber/metals etc	burn waste	indiscriminate use of skips
Foundations	Local stone foundations with land drains around perimeter. Reduce thermal bridging to a minimum	Reused brick or block with recycled aggregate on minimal strip footing	new conc. block or new bricks on strip footing	Trench fill or reinforced slab/raft foundation with new aggregate.
Drainage	earthenware	spun concrete	–	UPVC
Roof Insulation	cellulose, sheep's wool or hemp/cotton with thermal broken timber I beams	reused insulation boards	mineral wool and expanded polystyrene	PUR, foam insulation, extruded polystyrene
Floor Insulation	Mineral wool,(glass wool & rockwool) Expanded polystyrene	Foamed glass	Perlite	Extruded polystyrene PUR
Wall Insulation	cellulose, cork, wood fibre boards or hemp/recycled cotton	Mineral wool or EPS,	Foamed glass	PUR, extruded polystyrene
Walls (new) External	Cob or earth, durable wood	reused brick or stone	new brick or concrete blocks made with recycled aggregate	concrete blocks, aerated autoclaved concrete blocks, strong cement mortars, tropical wood, preserved wood
Walls (new) Internal	Timber frame, clay block, cob or earth	Sand lime blocks, flue-gas gypsum blocks	Cellular Concrete blocks, natural gypsum blocks	Concrete, strong cement mortars
Timber Frame External Wall Finishes	Rain screen of durable timber from sustainable source	Lime sand render on lightweight lath	Fibre /cement sheet rain screen	hard cement render/new brickwork screen
Internal Wall Finishes	Local timber finish or lime-washed earth walls	Lime or clay plaster on masonry, timber lath or wood wool slab	Gypsum (natural or flue gas derived) plasterboard and plaster skim	MDF, plastic boards
External Window Frames and Doors	Sustainable European durable wood (oak) - Preferably English	European sustainable softwood (certified), Boron treated & finished with environmentally friendly microporous finish ie Osmo or Auro	Sustainable plywood & preserved wood	UPVC & tropical wood
Internal Windows and Doors	Durable home grown timber	European sustainable softwood	Sustainable plywood & preserved wood	UPVC & tropical wood
Ground Floors	Utilise existing concrete floor/suspended well insulated home grown wooden floor	Where thermal mass required, solid concrete with recycled aggregate and stabilised earth screed	Pre-cast concrete joists with concrete infill, reinforced in situ concrete slab	floating chipboard floor above concrete slab
Upper Floors	home grown timber joists with T & G timber floor boards on fibre board & plasterboard for sound deadening	as above with plywood floor	as above with strand board decking	as above with chipboard floor or concrete
Roof Structure	Cut roof	trussed rafters	flat roof	concrete roof
Roof Finishes	reused tile or shingles	timber battens/shingles (larch or oak)	new clay or concrete tiles	fibre cement tiles, Canadian cedar shingles, copper sheet
Rainwater Goods	bitumen lined timber guttering with recycled aluminium/cast iron down pipes	new aluminium, zinc, galvanised steel or cast iron	copper	PVC
Plumbing	Polybutylene pipes (Hep2O) above ground and polyethylene below ground. Internal wastes in polypropylene or polyethylene	Stainless steel	copper	PVC internal wastes and lead
Timber	Reused where possible	home-grown FSC certified	imported certified	pre-treated unsourced
Hard Landscaping	woodchip/bark or reused stone/brick/ concrete flags – no pointing	concrete paviours made from recycled aggregate set in sand with no pointing, gravel	new concrete or brick paviours with cement pointing, clay tiles	tarmac
Fencing	nativel broad leafed sp. or willow hedging	timber fence/drystone wall or reused brick walls with lime mortar	new brick/block wall	concrete or treated timber
Preservative Treatments	Avoid if unnecessary	Local treatment with Borates where required	Overall treatment	Pre - Treated timber
Paint Finishes/Decorations	untreated surface	lime wash or water based mineral paints for walls and ceilings and wax and oil finishes	Water based acrylic paints	Paints with organic solvents and lead based etc
Sealants	Coconut fibre, felt, sisal, lime.	Mineral wool, PE tape, EPDM seals	Elastomeric sealant with base filler	PUR foam, sealant or tape
Lighting	Design for natural light with reflective surfaces	Low energy and LED	Low voltage halogen	Tungsten
Heating	Super insulated and designed such that no heating system required	Carbon neutral heating system	Condenser boiler	Electrical heating

	July 2008
Mon	Tue	Wed	Thu	Fri	Sat	Sun
30	1	2	3	4	5 5-7-2008, 7:00 pm Flatworld in concert. Rich compelling melodies and tight driving rhythm, Flatworld play an eclectic mix of music from Eastern Europe and beyond.	6
7	8	9	10 10-7-2008, 7:00 am Soft Option Dancers at the ecoCafe	11	12	13
14 14-7-2008, 11:00 am WholeHealth in Summer	15	16	17	18	19	20
21	22 22-7-2008, 7:00 pm Fold Book Group	23	24	25	26 26-7-2008, 9:00 am Green Fest with Satish Kumar	27
28	29	30	31	1	2	3