Hi All,
In the middle of a new build and starting to look at insulating the roof. I can squeeze 150mm of insulation between the rafters but am wondering which method is best.
I'll be using foil backed insulation board but have the choice of one single layer of 150mm thick board or two layers of thinner board totalling 150mm. Anyone any advice at which method will provide the best insulation? Obviously having just one layer would make cutting easier!
Thanks for the advice.
In the middle of a new build and starting to look at insulating the roof. I can squeeze 150mm of insulation between the rafters but am wondering which method is best.
I'll be using foil backed insulation board but have the choice of one single layer of 150mm thick board or two layers of thinner board totalling 150mm. Anyone any advice at which method will provide the best insulation? Obviously having just one layer would make cutting easier!
Thanks for the advice.