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Old 08-15-2014, 12:39 PM   #1
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Tyvek Recommendations For This Small Job?

My Southeastern Michigan 1100 square foot 1949 bungalow style home is primarily brick. However, it has two cantilevers (if I am using the proper terminology), one on the front of the house and one on the back that are sided, and are in need of new siding. I received 4 estimates, all from reputable companies in my area. None of the estimates mention square footage for the siding. My crude guess is that it's 300 square feet for both cantilevers.

I am going with .046 siding and the use of 3/4" foam board (plus complete trim work including bow window that sits in the front cantilever).

However, I'm receiving mixed information regarding the use for Tyvek House Wrap for this particular small job. The first two companies out for estimates did not bring up Tyvek (or any similar type product) and the last two estimators did.

I'd appreciate opinions/recommendations regarding the Tyvek. If it is advantageous in my home's situation, I don't want to skimp on the added cost. Thoughts?

If Tyvek is recommended, should I be sure that it is applied underneath or over the 3/4" foam board?

If it helps to know what rooms these cantilevers are a part of: The cantilever on the front of my house encases a bow window that will be re-trimmed. This front cantilever is on the exterior of my home office, which is the room I spend the most time in. The cantilever on the back of my home is the exterior to my kitchen, and my kitchen sink with window is inset into it. The dryer vent will go through this cantilever (laundry room is underneath in basement).

Thanks for your advice.


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Old 08-15-2014, 02:49 PM   #2
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Tape and seal the seams on the foam as a standard.

Tyvek (housewrap) isn't overkill and does provide a nice, uninterrupted, drainage plane.


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