OSB inside walls & insulation questions

[zrxrider]

Got a pole building........was thinking 1 1/2" foam board between the girts and 7/16" OSB over that between the poles. Does that sound good??

 

[58Yeoman]

That's what I did.

 

[trbomax]

Thats ok,but it will only get you an r-9,and there will be a lot of area without a thermal break. If you are just going to heat occasionally it will be ok.

 

[zrxrider]

That's what I did.

Are you happy the way it turned out?

Thats ok,but it will only get you an r-9,and there will be a lot of area without a thermal break. If you are just going to heat occasionally it will be ok.

What do you mean by thermal break? I'm what you call a weekend warrior.....

 

[trbomax]

In a perfect situation, there would be no direct thermal connection between the inside wall material and the outside sheating. I accomplished that in my building,but at great ,labor intense work. A thermal break is any area that has insulation material between the inside and outside wall covering. Wood is a very poor insulator and everywhere the wall girts run,you have a direct connection,or no thermal break.

 

[rburke65]

Well trbomax, How does one achieve a T break between a metal exterior and a wood interior? Any suggestions to help me before I start on mine?

 

[trbomax]

I posted the whole process a week or so ago with pics. 1 1/2" foam between the outside wall girts. Then a 3/8" reflective wrap on the outside,fully taped. Cover with steel sideing.2x4 stud walls between the posts,r-13 fg in the cavitys. 2x4 wall girts on the inside with 1 1/2" foam between.The interior wall girts are staggered so that they are not directly across from the outside girts. Another 3/8" reflective wrap on the inside,fully taped. drywall or the covering of your choice.

edit) the wrap I use is Polar brand,they have a website.Search "foam vs fiberglass insulation" in "general".

 

[Timido]

Mine is kinda like trbomax did it. There is foil bubble wrap insulation between the steel siding and the wood. I then put unfaced R19 in the walls and ceiling and covered it with 7/16 Osb. Works Great I would have Drywalled it but Dryway at the time was 2 times the price of OSB. Last Time I was at the store drywall was cheaper.

 

[Beaumont67]

Prodex Total Insulation 5mm (1/4 inch) closed cell polyethylene foam sandwiched between two 99% pure aluminum, low emissivity surfaces. Works great in hot and cold climates. Keeps your building and home cool in summer, warm in winter and dry all year. http://www.insulation4less.com/Default.aspx

* Cool - Radiant barrier: Reflects 97% of radiant heat (the primary source of heat flow).
* Warm - Reflective Insulation: R-value 15.67.
* Dry - Vapor barrier: 0.033 gr/m2hkPa. Eliminates condensation

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