Modified Mooney Wall (SPF)?
Is there a way of achieving exterior foam board performance without the faming hassle by using a modified mooney wall?
The challenge of closed cell foam sprayed into interior cavities is that thermal bridging from the studs robs some of the benefit.
Our current project is an elaborately detailed house (lots of dormers and bumpouts) and although we’d intended to go for exterior rigid foam, we’re still open to ideas.
Would a modified mooney wall give us the benefits without all the hassle associated with getting the exterior detail ‘right’?
– put 2×3 strapping horizontally across interior studs
– Apply closed cell spray foam 2-3″ thick into cavities and over the studs (including the space between the horizontal strapping)
– Rewire and then dense pack the bays and remaining space with cellulose.
It seems a lot simpler than trying to convince a local contractor into applyling the exterior foam!
(the house will need to be reshingled so that component is a wash)
I’ve been learning about Mooney’s but not found info on this configuration.
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