mattyshorts
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Post by mattyshorts on Nov 4, 2013 12:31:57 GMT -8
What is the best type of insulation to use on a Shasta 1400? fiberglass? rigid foam?Thanks in advance. It's framed on 3/4. mattyshorts
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Post by vikx on Nov 4, 2013 21:19:02 GMT -8
If the original fiberglass is bad, I use Reflectix bubble wrap in the ceiling and rigid foam in the walls. 3/4 can be hard to find in my neck of the woods, but heard that Home Depot will order it...
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soup
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Post by soup on Nov 5, 2013 2:18:35 GMT -8
Spray foam is best but takes prep and equipment. It adds super strength but don't spray it onto the aluminum from inside. You would never be able to remove skins again! LOL You would have to take skins off and spray from outside, let set up, trim. then reinstall skins.
I use foam boards all over. I learned doing custom vans in the 70's that fiberglass holds moisture.
Foil bubble wrap (Automat) is great in areas with bends. Used in vintage autos all the time now.
Welcome to VTT mattyshorts! Enjoy the site. soup
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mattyshorts
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Post by mattyshorts on Nov 5, 2013 9:57:14 GMT -8
Thanks everybody for the quick response(s)! This site seems like it has endless answers and everyone has been very helpful.Our local hardware store does carry 3/4 rigid. What is the best way to install/attach to the framing? Taped in? Dare I say caulked in(although I think I might know the answer to that already. Caulking seems like it's the newest four letter word on the site!)? A little insight on what I'm working on: Shasta 1400 ...not sure of the year, but I think it's early 70's. The # on the tongue said S32956 PA 4247 N. All help is greatly appreciated! Make it a great day-mattyshorts
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Post by vikx on Nov 5, 2013 22:09:22 GMT -8
I wouldn't use spray foam. I'm currently repairing a Loliner and having to pick and chop to do the work... very bad. Please don't use spray foam. On the rigid foam, I cut to fit tight. It will normally stay in place by itself. You can also caulk it; it's certainly not going to show! Personally, I've never had to use glue. The Reflectix bubble wrap can be stapled in between rafters and cross boards, the silver tape is great for joints, really sticks.
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61 Shasta
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Post by 61 Shasta on Nov 6, 2013 13:41:44 GMT -8
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mobiltec
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1954 Jewel In Progress...
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Post by mobiltec on Nov 6, 2013 17:08:13 GMT -8
Boy that do look nice.
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cowcharge
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Post by cowcharge on Nov 8, 2013 7:29:53 GMT -8
I used rigid foam too. Tuff-R (Polyisocyanurate) has the highest R-value I could find (6.5/inch, I've got three inches in the center 2' of the roof), and is silver coated so it acts as a radiant/moisture/air barrier as well. I used aluminum tape over all the inside seams, covering the inside of the frame too, so that no condensation could ever get farther than behind the paneling. Kept me toasty at 14 degrees last Christmas Eve!
I cut to fit tight like the other folks here, and used Great Stuff spray foam behind outlets, in small gaps and in the gaps where the thick 110v wiring goes through the wall, around the water fillers and drains and such. The only place I needed any adhesive was in the floor, because when I did the floor I hadn't yet found any 1.5" sheets, so I used a combo of half inch and one inch, and I didn't want any of the pieces to fall out where the belly pan isn't tight against the floor. I used dabs of caulk between the layers (the caulk was what I had handy, I'd probably use panel adhesive if I did it again).
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vschwartz0001
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Post by vschwartz0001 on Jun 15, 2014 4:04:51 GMT -8
When you installed your rigid foam did you leave an air gap between the insulation and skin
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SusieQ
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Post by SusieQ on Jun 15, 2014 4:30:44 GMT -8
When you installed your rigid foam did you leave an air gap between the insulation and skin Sent from my SAMSUNG-SGH-I847 using Tapatalk 2 vschwartz, I used 3/4" rigid foam and it fit rather snugly in between the 1 x 2 frame pieces of my trailer. There is not really "gap" between the skin and aluminum. The breaks in the skin, the lines in the aluminum, allow the skin room to expand and contract and keep it from being tight against the frame. Hope this makes sense.
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lakewoodgirl
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Post by lakewoodgirl on Jun 15, 2014 9:40:34 GMT -8
Just as a test, I tried the Reflectix bubble wrap in a section and I really kinda liked it. It was very easy to use and very cost effective.
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SusieQ
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Post by SusieQ on Jun 15, 2014 11:07:20 GMT -8
If I had mine to do over, that's what I would use, at least in my curves! I spent more time cutting, fitting and taping insulation than any other repair.
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Post by vikx on Jun 30, 2014 21:56:18 GMT -8
Mobile gets all puffed up over insulation... LOL.
I use Reflextic in the ceiling.
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ladywendolyn
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Post by ladywendolyn on Jul 1, 2014 16:41:24 GMT -8
Do I add the wiring before or after the insulation?
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