Location Your Roof Example Existing 50mm wide ceiling joists at 600mm centres 150mm Earthwool Loft Roll 40 laid between the ceiling joists 150mm Earthwool Loft Roll 40 laid over the ceiling joists at right angles to the 1st layer Enter location Enter description in boxes above in similar This roof achieves a U value of e.g. way that the example roof on the right 0.15 w/m2k “flat ceilings” has been entered. Use arrow keys on your and betters the U value required in In box above keyboard to move between boxes. the Building Regulations (0.16w/m2k) for flat ceilings Existing Roof Type 2 (please use tables at the back of document for new Location Your Roof Example Concrete tiles on breathable felt Existing 50 x 1000mm Rafters at 400mm c/s 50mm ventilated air space 50mm Celotex between rafters 80mm Celotex on underside of rafters 12.5mm plasterboard and skim Enter location description in boxes above in similar This roof achieves a U value of e.g. way that the example roof on the right 0.18 w/m2k “Sloping Ceilings” has been entered. Use arrow keys on your and matches the U value required in In box keyboard to move between boxes. the Building Regulations for sloping ceilings Existing Roof Type 3 (please use tables at the back of document for new Location Your Roof Example Felt and chippings 15mm plywood 75mm Celotex between existing 50 x 125mm flat roof joists at 400mm centres 55mm Celotex on underside of roof 12.5mm plasterboard and skim Enter location Enter description in boxes above in similar This roof achieves a U value of e.g. roofs” way that the example roof on the right 0.18 w/m2k “Flat
Location Your Roof Example Existing 50mm wide ceiling joists at 600mm centres 150mm Earthwool Loft Roll 40 laid between the ceiling joists 150mm Earthwool Loft Roll 40 laid over the ceiling joists at right angles to the 1st layer Enter location e.g. “flat ceilings” In box above Enter description in boxes above in similar way that the example roof on the right has been entered. Use arrow keys on your keyboard to move between boxes. This roof achieves a U value of 0.15 w/m2k and betters the U value required in the Building Regulations (0.16w/m2k) for flat ceilings Existing Roof Type 2 (please use tables at the back of document for new Location Your Roof Example Concrete tiles on breathable felt Existing 50 x 1000mm Rafters at 400mm c/s 50mm ventilated air space 50mm Celotex between rafters 80mm Celotex on underside of rafters 12.5mm plasterboard and skim Enter location e.g. “Sloping Ceilings” In box description in boxes above in similar way that the example roof on the right has been entered. Use arrow keys on your keyboard to move between boxes. This roof achieves a U value of 0.18 w/m2k and matches the U value required in the Building Regulations for sloping ceilings Existing Roof Type 3 (please use tables at the back of document for new Location Your Roof Example Felt and chippings 15mm plywood 75mm Celotex between existing 50 x 125mm flat roof joists at 400mm centres 55mm Celotex on underside of roof 12.5mm plasterboard and skim Enter location e.g. “Flat roofs” Enter description in boxes above in similar way that the example roof on the right This roof achieves a U value of 0.18 w/m2k
Questionnaire%20for%20Conversions.docx