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-   -   yet another attic kneewall question with picture (http://www.diychatroom.com/f103/yet-another-attic-kneewall-question-picture-167661/)

brianxmurray 12-29-2012 12:46 AM

yet another attic kneewall question with picture
 
Picture of attic kneewall for bonus room above uninsulated garage.

Located in ohio

My thoughts are to fill in the missing tyvek with reflextex and insulate..



Attachment 62678

Am i on the right track?

Windows on Wash 12-29-2012 01:21 AM

Better yet would be to spray foam all the gaps and back it with a ignition/thermally compliant rigid foam.

brianxmurray 12-29-2012 01:54 AM

1 Attachment(s)
Does it matter if the faced batt insulation already inplace has the vapor barrier facing towards the living space?



Attachment 62679

Windows on Wash 12-29-2012 02:01 AM

Reflectix is no less of a vapor barrier than is foil faced ISO and less than XPS.

You could cover the joist (perpendicular) with batts as well and cover with Tyvek for wind wash protection.

brianxmurray 12-29-2012 02:28 AM

Thank you for the suggestions, much appreciated. I like the foam idea but hate working with the stuff. The batt/tyvek solution seems like the best.

Thanks again


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