Has anyone ever used Tyvek Attic Wrap?
Wondering if this product is worth considering. We are building a house with a cold, vented roof with scissor trusses which we will raise the heels to 12″ to provide a maximum space for insulation. We plan to use cellulose. At this heel depth, I have been assured we can achieve a minimum of R-38 at the eves. My concern is the potential for ice damns. I hate them.
I considered spray foam to turn the attic into a “conditioned space” as I have read on this site multiple times but it is not in my budget. Can I spray foam only at the eves? and leave the rest of the space cellulose?
I also have considered a layer of exterior rigid foam on top of the roof sheathing but, again, it is beyond my budget. Besides, my builder didn’t like the idea of laying 4 layers on the roof top in January. (we are in Michigan)
Our lumber rep suggested Dupont’s Tyvek Attic Wrap. He said he’s known about it for several years but he’s never quoted it or even had anyone ask about it. He said he’s always been curious about it and mentioned it to me. It sounds great, in theory, but I can’t find any reviews, good or not. I can’t find much about it or even how long it’s been around. Did it flop like Dupont’s thermal wrap? Or has it performed well? I haven’t gotten a price yet on it, I am thinking that it may be a budget-buster – especially with labor.
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