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Ask your QuestionWhat is the ideal thickness for a loft insulation? Does it depend on your home?
Asked by Christian on 6th Sep 2021Best Answer
"170mm is good enough to lay in your loft. If you put more it won't really be much better but don't put less"
Answered on 6th Sep 2021 - Member since Jul 2019 - report"The recommended depth of blanket style insulation (glass or mineral wool) for a loft is 250 to 270 mm"
Answered on 6th Sep 2021 - Member since Jul 2019 - report"270mm glass Wool is the best thickness for good installation for Loft installation"
Answered on 6th Sep 2021 - Member since Nov 2019 - report"Hi
You need a minimum depth of 270mm insulation especially if it’s fibreglass. Thanks"
"Hi Christian,
The current minimum standard is 270mm. A lot of newbuild properties we install our boarding into have as much as 400mm but 270mm is the standard.
Kind regards
Gavin"