What's the point? The point is, you add foam to the stud walls, shave it flush, then cover it with sheeting and it will be air tight and insulated as hell. Put 2x6 stud walls on the exterior and you will be good.
Exaclty. Temps can be 0F to 112F. It's a double edged sword. This is why I have learned to not skimp on insulation.
-5 to 114 to be exact LOL Since I've lived here anyways.
True. A few years ago we actually hit -22 but that's a once a decade deal. LOL
If you don't like the weather here....just wait a few hours. It will change.
Ok so if I don't do spray foam what's R rating of insulation should I use? For the ceiling and walls?
That was the process folks said they had seen condensation issues. Basically moisture from the warm heated area permeates the bat and you end up with condensation at the bat/foam interface.On thing you could do to save on money and air seal the building is just spray the whole thing with only 1" thick of closed cell foam. Then will the batts with whatever other insulation you can
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Anybody have any issues with shrinkage issues using closed cell? Was just reading articles about some of the foam shrinking.
What about spraying directly on the backside of the roof? Any issues with it falling/not adhering after several years?
The thing is.....if moisture gets in, yes, it will trap it. The solution is, build your crap so it won't get moisture in it! LOL
Seriously, If you have a barrier on the outside of the wall under the siding and cover in the interior with sheeting, you won't trap moisture because it can't get in. Now, if you redneck ass it from the get-go...then yes...you get ghetto results.
Spray foam traps moisture and will rot off the bottom of your studs in 5 years or so.
The outfit that does the paint and lining for the tanks at work just did spray foam on there new building, sprayed straight onto the tin. The owners other business is construction, so I'd think he'd know if that'd be a problem or not. All I know is it made a huge difference in that building, before the foam it was really cold, now it's kinda hot.Anybody have any issues with shrinkage issues using closed cell? Was just reading articles about some of the foam shrinking.
What about spraying directly on the backside of the roof? Any issues with it falling/not adhering after several years?