HomeRefurbers

Insulating a SHED ???

« back to Home Building & Construction forum

Topic by rcp612 posted 03-12-2010 06:33 PM 9352 views 0 times favorited 7 replies Add to Favorites Watch
View rcp612's profile

rcp612

2 posts in 3197 days

03-12-2010 06:33 PM

Do to my recent downsizing, I now have an 8’ X 12’ shed to transform into my wood shop.
The local insulating contractor tells me I can have closed-cell spray foam insulation applied directly to the roof sheathing and that will be all that’s needed. No vapor barrier is required and I’ll be good to go. Is that so??
And, why couldn’t I just use the closed-cell foam panels that would fit between the trusses?
There will be very little heat in this building during winter, just enough to possibly maintain 50 degrees for the chemicals to be protected, and, no cooling in the summer, just a cross-flow breeze between the door and a window on the opposite end.
The contractor wants to dismiss my questions, so I feel like I’m being led down a road that I may not want to travel.
Any help would be greatly appreciated from you guys. Thank you in advance from a L J member. Roger

-- Do as you always do,,,,,,get what you always get.



View Dan Lyke's profile

Dan Lyke

331 posts in 3905 days

03-13-2010 01:19 AM

Seems like one advantage of the spray-in insulation is that you won’t have vapor permeable areas around the insulation, but for a shed roof, it also seems like that’s not a huge deal.

When you say “very little heat in this building”, what climate are you in? Even here in slightly Northern California we get down to freezing a few nights a year. And, seeing that you’re in Ohio, I just visited family near Toledo: I’d consider heated to 50 degrees “a lot” of heat.

-- Dan Lyke, Petaluma California, http://www.flutterby.net/

View Todd Thomas's profile

Todd Thomas

735 posts in 3645 days

03-13-2010 01:03 PM

just recently had a client looking at this solution as well. here is what I found out…...Benefits: supplies a vapor barrier, make the areas air tight and ties the whole roof system together…...Cons: Cost, around here they charge about a $1.00-$1.50 per foot per inch….......1 inch give you a R7 r factor…...The client decided not to do it based on that.

-- Todd- Oak Ridge, TN

View dfletcher's profile

dfletcher

128 posts in 3259 days

03-13-2010 04:08 PM

Just from what you have said and what Todd offered, I can’t see why you would want to go to that expense. Why don’t you just get the closed cell foam panels and put them up, yourself. That could save you quite a bit. Remember to allow for ventilation in the roof system, or you may have problems in the future.

View rcp612's profile

rcp612

2 posts in 3197 days

03-13-2010 05:59 PM

”Why don’t you just get the closed cell foam panels and put them up, yourself. That could save you quite a bit. Remember to allow for ventilation in the roof system, or you may have problems in the future.”—dfletcher

I guess that is closer to my question. I’m being told I need NO roof ventilation with the spray foam. It would be difficult to vent the roof at this time also. That’s why I’m wondering if the panels would suffice instead of the higher (much higher) cost of the sprayed application.

-- Do as you always do,,,,,,get what you always get.

View dfletcher's profile

dfletcher

128 posts in 3259 days

03-13-2010 11:12 PM

Yep, I would just do that instead of the expensive stuff.

View Sarit's profile

Sarit

7 posts in 3262 days

04-17-2010 01:14 PM

Think about it, you have your roof insulated on one side and exposed to on the other. Now lets start baking the roof in the sun. All that heat is going to shorten the life of your roofing. Then again, how much work does it take to reshingle a 8×12 shed?

View assasin86's profile

assasin86

1 post in 404 days

11-03-2017 02:02 PM

You must be signed in to reply.

DISCLAIMER: All views and comments posted by members are not necessarily those of HomeRefurbers.com or of those working on the site.

Latest Projects | Latest Blog Entries | Latest Forum Topics

LumberJocks.com :: woodworking showcase