The insulation in my 1930's house loft is thin compared to today's standards due to small close-spaced joist sizes and full boarding. I need to retain the existing boarding for light storage purposes; is there a cheaper option to adding conventional timber to raise the joists; I recall once seeing an advert for "I" section MDF joists? Any ideas appreciated. Mike
Raising loft boarding to increase insulation depth
Nov 09, 2004
3 Replies
Could you not lay some ply bonded to PIR foam directly onto the existing boarding? The stuff intended for building warm deck roofs should do what you want.
appreciated.
Bad enough getting ordinary flooring into the average loft space, I can just imagine the fun with that stuff !...
A large circular saw is your friend ;-)
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