1970's House Shallow Roof Loft Insulation

[andyhuk]

Hi all,


1970's detached house with very shallow and low height roof.

The loft insulation looks to be around 100mm in the original part of the loft and 300mm above the newer extension.

The 100mm loft insulation area has been boarded directly on top of the joists, allowing for some storage room. Presumably because if the loft insulation was done to around 300mm and loft legs used there would be no room for any storage in the loft.

The loft appears to be ventilated ok, with the insulation away from the eves and a small number of tile vents fitted.

I know that 100mm does not meet the regulations these days and have boards directly placed onto the eve's is not ideal, but if this area was increased to 300mm insulation and used loft legs there would be no storage area in the loft at all.

Wondered if I should leave it as is? Alternatively if there is any other method of providing additional ventilation between the loft boards and the 100m insulation without using full size loft legs. Perhaps kind of spacers to place between the boards and the joists?

Be great to hear your thoughts.

Andy

 

[Why Not Indeed]

What's more valuable to you, reducing heat loss or having the storage space?
Alternatively, PIR foam boards take up a lot less space for a given R value, but they cost more and are time-consuming and fiddly to fit compared to just unrolling some loft roll.