How to insulate a skillion roof?

[needadvice]

Hi Very very best, regardless of cost to insulate a skillion roof. Measurements in photos. Is the top timber beam enough for the air gap?  I’ve looked at space blankets that don’t look very well made and thermal- liner & break. Not sure if the break is worth extra for a timber house roof. ?  Also besides this product being stronger does it actually reflect more sun than plain staking?
Also will 90ml batts fit correctly? Thanks (getting a new roof)

 

 

[needadvice]

Thanks. Did you work out how many roles of tape?

also the sq mtrs of batts is that based on sq mtrs of floor area on a normal pitch roof? 

[JacobZ]

Hi @needadvice,

We'd need to know the actual dimensions of the roof, not just the square meterage, in order to calculate how much tape you'd need.

You need a piece of tape for every overlap, so if there are for example, 5 overlaps that are 8 metres long, you'd need 40m.

We'd also need to know which specific rolls of thermal liner you were using as they come in different sizes which will affect how many overlaps there are.

The amount of insulation batts is relative to the square meterage of the ceiling space it is covering. The square meterage of the ground is going to be pretty close to this.

Jacob