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Old 11-25-2018, 01:50 PM   #1
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Insulating the floor?

The bus I bought already had some work done on it. There plywood laid on all the floors but the previous owner did not insulate. Looks like he just ripped out old flooring and screwed plywood into the bus floor with TEK screws. There's also some framing done for a bed and bathroom walls. I live in Iowa so it's going to get cold for the winter. Should I leave it as is? Add insulation on top of the plywood? Take off all the plywood and framing and redo it with insulation? Will the TEC screws make it more difficult? Any advice?
We plan on using laminate flooring in the bus and I'm not sure how that might affect us insulating the floor.
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Old 11-25-2018, 07:49 PM   #2
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Do you care about the extra weight?

If not, lay polyiso down and another layer of thinner ply on top.

Or even the final top layer as long as its puncture & tensile strength is enough.
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Old 01-22-2019, 06:49 AM   #3
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I would rip that stuff out. Get you a good foundation built where you know what it has. The floor is the most important place for insulation on a skoolie. The cold wind goes right under a bus and creates a battle you dont want to fight. while you take it down to the metal weld in any holes you can. Spray it with some rust inhibitor and give it a good coat of paint. You can see below a 70 degree difference with the good insulation we have.

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Old 01-22-2019, 08:19 AM   #4
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I will never for the life of me understand people not insulating the floor, it works in both directions hot and cold.....
I work on the flightline radiant/reflective heat of concrete, and asphalt is ridiculous.

Not to be cynical, but if the person "elected" if you will to not insulate, whether their reasons made sense or not. What else is hiding under there??? For my own piece of mind I would tear it out and assess the metal, then insulate the floor and lay a subfloor.

Cold settles, you're in a metal box, and as others have mention the wind flow under the bus will cold soak the bottom of the bus. If efficiency and comfort are goals, then there is no such things as too much insulation, just a matter of how space are you willing to give up. The less effort it takes to warm and hold the warm the better.

Handyman and Shenaniganizer
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Old 01-22-2019, 10:42 AM   #5
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"Bridge may freeze before roadway" same theory applies here also.
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Old 01-22-2019, 09:02 PM   #6
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When your dog’s bowl looks like this, you’ll need to insulate the floor!
——> and it’s mild Oklahoma weather!

I once complained I had no shoes....
Until I met a man with no feet
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floor, insulation, plywood

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