I need to keep the temp in our garage above zero to prevent damage to some water pipes that we have installed during the summer.
To do this I'll be building a set of insulated garage doors and adding insulation to the roof. I'nm happy enough with the doors but but I don't know what insulation to use for the roof.
The roof is flat with joists positioned about 30cm apart. So, the simplest solution would just be to 'nae nails' some sheets of polystyrene to the roof between the joists. However, I can't help but worry that polystyrene is a bit of a fire risk and so might contravene some building regs etc.
Is there simple material that anyone might recomend for this job? I've noticed a product called celotex that seems to be used within roof spaces etc but it is twice the price of basic polystyrene sheets.
Cheers,
ip
To do this I'll be building a set of insulated garage doors and adding insulation to the roof. I'nm happy enough with the doors but but I don't know what insulation to use for the roof.
The roof is flat with joists positioned about 30cm apart. So, the simplest solution would just be to 'nae nails' some sheets of polystyrene to the roof between the joists. However, I can't help but worry that polystyrene is a bit of a fire risk and so might contravene some building regs etc.
Is there simple material that anyone might recomend for this job? I've noticed a product called celotex that seems to be used within roof spaces etc but it is twice the price of basic polystyrene sheets.
Cheers,
ip