Cool Mods - Thread restored 10/18/2012

Pitapony wrote:
What is the general price range of this stuff? I know it would vary by length of RV but what were some of the prices you were quoted for your length of RV? And what is the length of your RV?

The price of Contractor applied Spray Faom insulation in each region is different. There's even a huge variance within the same region. Thus, always get an "estimate" for 5+ different contractors. As a suggestion, take the length and width of your TT's chassis box (for example, 8ft by 24 ft - which is the chassis size of the wife's TT) and price normal fiber glass insuation for it. For example, 8 x 24 = approx 200 sq FT. No foam required under its slide(s) and NO foam under its holding tanks. If you foam under your 3 x tanks (then use chassis box 10 x 24 instead. If you plan to apply Spray Foam yourself (via Do It Yourself Spray Foam kits), add 25% for wastage. Especially if first time DIY and doing it "up side down". Take 200 sq ft (as in my wife's TT) and price normal fiber glass insulation at 4" thick for it. re: Same stuff that's used between normal 2x4 vertical wall studs. Now, take that financial estimate (for fibre glass insulation) and multiply by 4.5. Spray Foam is often 4 - 5 times `more` expensive then Fiber Glass insulation. It's output number is the RAW financial Estimate of Spray Foam (for same sq ft area). Remember to add cost for any over spray plastic for protecting over spray areas and for laying on. For example: - Click Here 1 - and - Click Here 2 - Also add cost for lots of duct tape and for a few garbage bags (for tank valve wrapping and for taking garbage away). The more work you can do (re: masking, wrapping, clean up), the less the profressional spray foam guy will charge you. Like painting a vehicle, one preps the vehile so the professional Master Painter guy comes in, sprays and he leaves. They don't need to waste their valuable skills (and expensive time) on doing the "grunt work" - like making and clean up tasks.

Due to high cost of Spray Foam, don't think I'd `purposely` remove the under belly factory fiber glass insualtion and replace with Spray Foam. But if rebuilding a floor (due to critter removals - like on my wife's TT) or replacing rotten flooring, I'd get Spray Foam again. Especially if I plan to keep a trailer a long, long time.

Hope this helps in your research as well...

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