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Insulation in Northern Saskatchewan, my planned wall

jab99's picture

Hello

Here is wall detail

 

Certainteed Membrane vapour barrier (breathable if wall humidity get too high)

Roxul batt insulation (2x6 wall)

Plywood sheathing ( handles any accidental moisture better)

Typar Drain wrap (allows small air sapce behind foam)

2 layers of stagered 1.5 inch eps exterior foam board (breathable to exterior)

1 x 4  firring strips (rain screen)

Hardie board siding. (my wife loves it)

 

 

Widows are in installed as innie's with Azek exterior jamb extensions. (tripple pane dual low e and argon)

 

Goal, be economical, reduce all thermal gaps and be airtight.

 

Thoughts???

Why Roxul and not (post #206929, reply #1 of 1)

Why Roxul and not Cellulose?

 

Why inset?  I could see snow piling up on the windowsills... and where will the cat perch?

YAY!  I love WYSISYG editing!  And Spellcheck!

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