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Country Discussion Topics
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Insulating a Quoset-type shed??
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IaGuy    Posted 11-28-2001 at 18:31:20       [Reply]  [Send Email]
Any ideas on how to insulate a steel large convoluted arch shed?

Hilltopper    Posted 11-29-2001 at 06:16:36       [Reply]  [No Email]
I have seen some interior insulation that looks like re-cycled newspaper. It feels "hard" and is treated with borax to make it flame retardant. It is sprayed on also. I know it is used in new houses. It is sprayed on thick then scraped off with a straight edge down to the studs. I think it has to be covered entirely with sheetrock to meet fire codes.

IHank    Posted 11-28-2001 at 19:22:30       [Reply]  [Send Email]
Ia Guy- This past summer the town of Woodward remodeled a big metal pole building into a nice maintenance and storage building.

They hired a firm that came in with a pressure spray gadget. It sprayed a foam that expanded like crazy in a few seconds. It made a nice thick heat barrier insulation and sealed up all the little cracks and holes that go with pole buildings.

If you're interested let me know and I'll find out the details and report back. IHank

Nathan(GA)    Posted 11-28-2001 at 19:46:43       [Reply]  [No Email]
I'll 3rd that. The place I used to work used it on everything. Spray on a 1/4" and before you can spit it's 3-4". I don't know what it costs, but they keep a guy busy with it.

Wounded    Posted 11-29-2001 at 11:52:42       [Reply]  [No Email]
$8,000 for 6" on all six sides of a 28' X 28' X 28' structure.

Nathan(GA)    Posted 11-30-2001 at 18:48:41       [Reply]  [No Email]
WOW, no wonder this guy trades trucks every year. That's more than I would've guessed.

Burrhead    Posted 11-28-2001 at 19:40:51       [Reply]  [No Email]
That stuff works really good.

We used to have the underneath sides of equipment and old truck cabs shot with it. It kills out the heat and noise and takes all the draft out of a building or cab.

big fred    Posted 11-28-2001 at 21:44:18       [Reply]  [No Email]
Burr, how does that hold up over time? I was thinking of insulating my '50 Ford truck with it and some fellows on a Ford truck forum recommended against it, as it doesn't seal against moisture and the steel cab would rust out. Also, does the stuff attack the galvanizing on the steel in a building or would that protect the building?

Burrhead    Posted 11-29-2001 at 13:16:15       [Reply]  [No Email]
Several folks don't recommend it but we have'nt had any problems with it.

You have to keep the oil leaks off of it or it will soak up a ton of oil but it does'nt destroy the insulation, it just creates a fire hazard.

This type they sprayed our junk with repels water, but the oil will soak in it. It does and excellent job of cutting out wind and engine noise in the cab.

There are shops here that were sprayed with this stuff in the late 70's that have'nt had a problem with moisture or rust.

There maybe a difference in what type you use. We had ours sprayed with whatever brand the Trailmobile and Utility reefer trailers are insulated with at the dealer repair shop in Houston.

PCC-AL    Posted 11-28-2001 at 19:00:52       [Reply]  [No Email]
Hi IaGuy,
There are a lot of folks here that can give you some ideas, but your need to let them know a little more info.
Where are you? How large is the building? What purpose do you intend to use it for?
There is a building like this in my area that was originally an automobile dealership just after WWII. It has never been insulated as our climate is moderate. Give us a little more info. Thanks and good luck.

IaGuy    Posted 11-30-2001 at 18:41:33       [Reply]  [Send Email]
The steel Quonset machine shed now sports a good concrete floor 6" thick, rebar 2 ft centers, smooth and I have sealed the saw cuts with urethane. But the double barrel wood stove can only raise the temperature 10 degrees, best is about40-45 degrees.
Other problems, bullet holes, machinery pokes and other mysterious seam leaks. if insulated from inside would have to seal against leaks and cling upside down against smooth galvanized metal. Ideally an exterior coat might do both, but I hear very very expensive....might be better to build a pole building right over the slab. What looked like a good shed, doesn't look so good now..any suggestions.

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