Hi All ,
Great forum BTW lots of lost hours reading many differing posts amazing what you can learn .
My situation is as follows .
I have a 1960's semi with a brick single skin attached garage with a concrete floor which slopes severely back to front approx 8" fall over 12' and a cold flat roof.the garage is sized at 7' wide by 25' long .
I am wanting to insulate the garage to make it warmer in the winter to use as a workshop /gym etc, but not a habitable room.
I have read as much as possible with regards to insulating and damp proofing but still have several questions which are as follows .
1.The dampproof membrane that I need to put down to cover the floor area how do I fasten the wooden battens down for the insulation (25 mm kingspan etc) to fit between without puncturing the membrane and making it pointless .
2.Do I stud out the walls first then do the floor framing or floor first.
3. How would i fasten the walls vapour membrane behind the wall studs, would i just drill through the battens and hammer fix the studs with the wall membrane behind the batterns , then size fit kingspan between the batterns then use vapour foil plasterboard to dry line the walls .
4. The roof ( whole can of worms this is !!) I have 19 4X2's running perpendicular to the length of the garage I think this means that if I insulate it with 50mm kingspan then dry line with foil backed plasterboard and leave a 25mm air gap I will have to put in 34! vents (17 on each side)
which I am obviously trying to avoid.
5. Is there anyway I can fully insulate the ceiling to make it a solid block of insulation then put a vapour barrier up and finally line it with plasterboard? as this will make it a lot simpler for my aching brain .
If anyone can help with these questions I would be very grateful .
Many thanks in advance for any help
Glenn
Great forum BTW lots of lost hours reading many differing posts amazing what you can learn .
My situation is as follows .
I have a 1960's semi with a brick single skin attached garage with a concrete floor which slopes severely back to front approx 8" fall over 12' and a cold flat roof.the garage is sized at 7' wide by 25' long .
I am wanting to insulate the garage to make it warmer in the winter to use as a workshop /gym etc, but not a habitable room.
I have read as much as possible with regards to insulating and damp proofing but still have several questions which are as follows .
1.The dampproof membrane that I need to put down to cover the floor area how do I fasten the wooden battens down for the insulation (25 mm kingspan etc) to fit between without puncturing the membrane and making it pointless .
2.Do I stud out the walls first then do the floor framing or floor first.
3. How would i fasten the walls vapour membrane behind the wall studs, would i just drill through the battens and hammer fix the studs with the wall membrane behind the batterns , then size fit kingspan between the batterns then use vapour foil plasterboard to dry line the walls .
4. The roof ( whole can of worms this is !!) I have 19 4X2's running perpendicular to the length of the garage I think this means that if I insulate it with 50mm kingspan then dry line with foil backed plasterboard and leave a 25mm air gap I will have to put in 34! vents (17 on each side)
which I am obviously trying to avoid.
5. Is there anyway I can fully insulate the ceiling to make it a solid block of insulation then put a vapour barrier up and finally line it with plasterboard? as this will make it a lot simpler for my aching brain .
If anyone can help with these questions I would be very grateful .
Many thanks in advance for any help
Glenn
