AC Insulates Under Floor of 120 Year Old Crawlspace

TimSmall · 09-24-14, 04:31 AM

Hmm. If I were you, I wouldn't insulate (just) between joists, insulate below them, or even better just on the floor.

e.g. See photo 5 in here:

BSI-009: New Light In Crawlspaces — Building Science Information

or the alternatives e.g. fig 6, fig 7 discussed in the same article. You'll need to swapout your supporting timber columns tho' (e.g. with AAC blocks?).

Keep your timber warm and keep it happy.

Seen it all go wrong twice with insulation between joists here (UK)... Your local climate will be different of course, but have a good read of that article...

HTH,

Tim.

09-24-14, 04:31 AM	#11
TimSmall Geek about the house Join Date: Dec 2012 Location: Brighton, Great Britain Posts: 17 Thanks: 0 Thanked 0 Times in 0 Posts	Hmm. If I were you, I wouldn't insulate (just) between joists, insulate below them, or even better just on the floor. e.g. See photo 5 in here: BSI-009: New Light In Crawlspaces — Building Science Information or the alternatives e.g. fig 6, fig 7 discussed in the same article. You'll need to swapout your supporting timber columns tho' (e.g. with AAC blocks?). Keep your timber warm and keep it happy. Seen it all go wrong twice with insulation between joists here (UK)... Your local climate will be different of course, but have a good read of that article... HTH, Tim. Last edited by TimSmall; 09-24-14 at 04:41 AM..