New window installation/ wall assembly
Jcroley10
| Posted in Green Building Techniques on
I am planning to soon install a large living-room window on an exterior wall. Climate Zone 5 – Windsor, ON. The wall is 1950’s stone veneer but will be brought back to wood framing to re-shealth and insulate, etc.
My plan thus far:
1/2” OSB
1-1/2” EPS foam
Tyvek house wrap
Window opening flashed appropriately
Flanged window
Vinyl siding
My question is the detail regarding flange connection. Should a wood piece be fastening to the outside on top of Tyvek and then window attached to it then flashed and later sided with vinyl?
Other questions – rainscreen needed?
Thank you,
Jon
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Replies
Jon,
Here is a link to an article that should answer your questions: "Installing Windows In a Foam-Sheathed Wall."
hi Jon -
With regard to this part of your question: do you need to do a rainscreen detail with vinyl siding? The answer is no; since we "hang" rather than fasten vinyl siding as cladding, there is so much air flow through the courses of siding that it acts essentially a lot like a rainscreen cladding, in terms of free drainage and air movement. I don't know if I would go so far as to call it air flow with vinyls siding I since the pathways are a lot less dedicated than with true rainscreen systems), but it does have enough air movement to promote drying.
Peter