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Old 07-29-2016, 05:30 PM   #1
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first conversion

starting a conversion was wandering what the going rate for spray foam insulation is
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Old 07-29-2016, 06:10 PM   #2
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Sticking with closed cell, plan on $0.70-1.50 per board foot. The bigger the job, the cheaper the per-board foot cost.
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Old 07-29-2016, 07:08 PM   #3
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Originally Posted by BusFiend View Post
Sticking with closed cell, plan on $0.70-1.50 per board foot. The bigger the job, the cheaper the per-board foot cost.
Is spray foam recommended to be used in the floor too ?

I haven't seen many project where people used spray foam in the floor
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Old 07-29-2016, 07:49 PM   #4
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It depends on the climates you plan on sleeping in. Some people frame the floor with 2x4 stick, spray, then lay a subfloor. Others will sandwich an inch of polyiso between the metal floor and ply sub-floor.

Many different ways to skin these cats. For retaining heat in cold weather, the ceiling and floor are the most important insulation layers. Windows can be even more important.

Good luck!
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Old 07-29-2016, 08:50 PM   #5
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i live i northern ohio but plan on triping it to arkansas once a year
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Old 07-29-2016, 09:24 PM   #6
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I used 2" of Foamular on top of the bus's metal floor:


Put plywood on top of that and you're golden. You don't need to frame the floor first. That rigid foam can support LOTS of weight.

I screwed the plywood down, but if I were to do it again I would have used all adhesives (PL Premium). The screws transfer some cold into the bus in the winter. It isn't enough to feel, but you can see ice crystals form on their heads then when the bus warms up the ice crystals melt and make little wet spots.
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Old 07-29-2016, 10:32 PM   #7
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I screwed the plywood down, but if I were to do it again I would have used all adhesives (PL Premium). The screws transfer some cold into the bus in the winter. It isn't enough to feel, but you can see ice crystals form on their heads then when the bus warms up the ice crystals melt and make little wet spots.
Interesting....thanks for the insight.
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Old 07-30-2016, 10:38 PM   #8
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did you remove the cieling panels as well?
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