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Job Site Diaries

Job Site Diaries

Insulating an Advanced-Framed House - A Hybrid Approach

comments (0) January 1st, 2013 in Blogs
Matt Risinger Matt Risinger, Blogger

Video Length: 4:54
Produced by: Matt Risinger


I did a video two weeks ago about Advanced Framing and it's really taken off with alot of views right out of the gate. I didn't realize that framing would be so interesting! Anyhow, I though I'd follow up with a video of how we insulated that Advanced Framed house. As you'll see in the video there are three types of insulation going on this house.  

#1 Rigid Foam "Outsulation" - The entire outside of the house has a blanket of R-5 insulation on top of the Tyvek Drainwrap. We used 3/4" R-Max with a foil face to the rain screen air cavity behind the siding.  

Foil faced R-Max exterior foam. The white strips are the rainscreen for the vertical siding.

I've become a huge believer in exterior rigid foam over the last few years and I can see going to greater depths of foam in the near future. No matter the type of framing (traditional or advanced, 2x4 or 2x6) your house will GREATLY benefit by using a layer of rigid foam on the outside. Be sure to use a draining housewrap behind the foam as I don't think face sealing the foam is a great way to weatherize a house. I think there is no better housewrap on the market today than Tyvek Drainwrap or it's tougher cousin CommercialWrap D. See my video where I tested the water shedding capability of Tyvek Drainwrap sandwiched with 1" rigid foam

#2 Owens Corning Energy Complete. For standard 2x6 stud bays I really like this two part system from Owens Corning. I did a few videos on this last year. It's basically a standard Blown In Blanket fiberglass system with a special air sealing step. The air sealing is what truly sets this apart.  

 

#3 Open Cell Spray Foam. Yes that's right. Both fiberglass and Spray Foam in the same house! I'm not talking about canned foam though I do use alot of those too. There is no better air sealer than spray foam and in many applications there is no better way to insulate. You'll see in this video we used the spray foam in the garage both walls and ceiling, the roof, and in the truss bands around the house.

Here's a shot of the powder bath in the foreground and the garage is behind that foam. I believe there is no better way to air seal a garage/house connection than spray foam. Notice my Panasonic WhisperValue exhaust fan (I like a slighly louder fan in the powder bath) with that excellent rigid duct install with mastic on the seams!  

Happy New Years everyone! -Matt Risinger



posted in: Blogs, green building, framing, insulation, garage