25 square metre house : Planning Permission may to required Budget price 75,000 including vat
SEE BELOW FOR INTERIOR IMAGES.
SPECIFICATION
WALLS
from outside to inside:
larch cladding
timber battens vertical for cavity air space.
solitex breather membrane to outside of timber frame
diffusion open green board outside face of external walls
90 mm rockwool frame slab 2 layers
timber studs 175x44
0sb3 18mm on inside
70 mm HD rockwool
base coat, mesh top coat finish plaster
Wall u value
0.15W/m sq K
addition of composite cladding will increase cost by 65%.
ROOF
Solar PV panels are an additional cost as pictured : Please enquire .
from outside to inside:
Trocal heat welded membrane roof finish to low pitch roof.
Tegral metal roof to pitched roofs.
50x50 batten space with ventilation
sarking ridgid polyuruthane insulation 70 mm
full fill cellulose woodfibre insulation in Rafters
Rafters 225mm
Intello membrane to ceiling & taping of joints & junctions to wall.
service cavity on inside of taped intello.
Red deal panelling to ceilings
Roof u value
0.11W/m sq K
Floor
from outside to inside:
floor joist panels
OSB to underside of floor joists
Cellulose blown insulation or Rockwool
OSB to top of floor joists
Birch 20 mm solid tg prefinished flooring
Floor u value
0.15W/m sq K
SPECIFICATION
WALLS
from outside to inside:
larch cladding
timber battens vertical for cavity air space.
solitex breather membrane to outside of timber frame
diffusion open green board outside face of external walls
90 mm rockwool frame slab 2 layers
timber studs 175x44
0sb3 18mm on inside
70 mm HD rockwool
base coat, mesh top coat finish plaster
Wall u value
0.15W/m sq K
addition of composite cladding will increase cost by 65%.
ROOF
Solar PV panels are an additional cost as pictured : Please enquire .
from outside to inside:
Trocal heat welded membrane roof finish to low pitch roof.
Tegral metal roof to pitched roofs.
50x50 batten space with ventilation
sarking ridgid polyuruthane insulation 70 mm
full fill cellulose woodfibre insulation in Rafters
Rafters 225mm
Intello membrane to ceiling & taping of joints & junctions to wall.
service cavity on inside of taped intello.
Red deal panelling to ceilings
Roof u value
0.11W/m sq K
Floor
from outside to inside:
floor joist panels
OSB to underside of floor joists
Cellulose blown insulation or Rockwool
OSB to top of floor joists
Birch 20 mm solid tg prefinished flooring
Floor u value
0.15W/m sq K
