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Old 11-30-2023, 11:25 AM   #1
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Where to go for insulation?

Hello, I'm looking for XPS foamular 250 insulation and A quick Google search brings me things from Lowe's and Home Depot and whatnot but my issue is the price. So I'm asking if there are better places to shop for some of the materials/items we may need in conversions? $45/ 8ft sheet is what I'm getting from my Google search. Please let me know what you got! Thanks!

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Old 11-30-2023, 12:36 PM   #2
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Where are you located? Menards is the best..
Local insulation supply might have it. Dow makes it as well. You also don't probably need 250. The standard 150 would probably be fine.
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Old 11-30-2023, 04:06 PM   #3
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my local insulation supply sells there overstock on craiglist with decent prices but 45$ a sheet sounds high even for lowes.
must be location?
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Old 11-30-2023, 04:19 PM   #4
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Just regular ol Indiana, I'm close to Ohio too though.
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Old 11-30-2023, 04:20 PM   #5
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I'm willing to pay the price difference for 250. I was just hoping there's a way to buy it in bulk maybe.
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Old 11-30-2023, 04:38 PM   #6
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even lowes sells contractor packs or quantities at a little better price.
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Old 11-30-2023, 05:38 PM   #7
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Bulk Insulation Supply

Quote:
Originally Posted by Trent97 View Post
I'm willing to pay the price difference for 250. I was just hoping there's a way to buy it in bulk maybe.
------------------------

I purchased insulation by the pallet from Insulation Supply Inc of Akron, OH. <$27 (R5/1"x4'x8'). Prices do not include freight carrier. I'm a repeat buyer, their return policy is easy, too.

https://insulation.supply/products


They have alot of different insulation products, in several thicknesses. Foamular250 is available in .75", 1", 1.5", 2", 2.5", 3", and 4" thicknesses - square edge, tongue-&-groove or scored...

Be sure to check their clearance section.
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Old 11-30-2023, 06:23 PM   #8
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Sorry everyone, I forgot to specify 2" boards. I'm following along the schematics of a professional builder. I'd buy 4" straight up if it was readily available, but I'll just have to double up on 2".
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Old 11-30-2023, 07:19 PM   #9
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Sorry everyone, I forgot to specify 2" boards. I'm following along the schematics of a professional builder. I'd buy 4" straight up if it was readily available, but I'll just have to double up on 2".
Hmmm 4" sounds like Chuck is the one you're following.
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Old 12-01-2023, 06:02 AM   #10
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my local insulation supply sells there overstock on craiglist with decent prices but 45$ a sheet sounds high even for lowes.
must be location?
2" XPS boards (4'x8') are $54 at my local Home Depot and $60 at my local Lowes. Insane - makes me happy I got most of mine for $5 off of Craigslist.
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Old 12-01-2023, 01:33 PM   #11
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Quote:
Originally Posted by Trent97 View Post
Sorry everyone, I forgot to specify 2" boards. I'm following along the schematics of a professional builder. I'd buy 4" straight up if it was readily available, but I'll just have to double up on 2".

I went with 3" because 4" was unavailable and didn't want to double the glue by using 2"x2. Yes prices have been raising!
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Old 12-05-2023, 09:31 PM   #12
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Absolutely lol. However, a roof raise is kind of not an option for me. So maybe 2" will be plenty? I mean I'm no cry baby for being too hot or cold, I'll have a solution one way or another.
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Old 12-05-2023, 11:02 PM   #13
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Absolutely lol. However, a roof raise is kind of not an option for me. So maybe 2" will be plenty? I mean I'm no cry baby for being too hot or cold, I'll have a solution one way or another.
I think the completeness of your insulation is more important than the thickness. Even 4" will be a lot less effective than it otherwise would be if you leave the front end, doors, windows, (floor?) etc. uninsulated (and drafty). For my bus, I built a fully-insulated internal bulkhead wall with its own door a couple feet behind the driver's seat, and I made removable inserts for all of my windows out of 2" XPS faced with plywood. With temps in the 20s, a 1500-watt electric space heater keeps my interior at 70°F. I expect that with my diesel air heater hooked up I'll be able to handle temps around 0°F comfortably - this is with 2" XPS all around.
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Old 12-06-2023, 04:16 PM   #14
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Beautiful. Thank you very much for the input. While I'm picking up what you are putting down, I think my floor is going to be the XPS "blocks" and the rest will be spray foam, probably anywhere between 1" and 2" for the spray foam specifically. Glad to hear 2" is comfortable though! Chuck probably just saw that he had extra headspace with the roof raise and just doubled up for the hell of it I'm sure.

Again, I'm no crybaby for hard weather or anything. as long as I can stay warm, I'm fine!
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Old 12-07-2023, 04:28 AM   #15
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Try Habitat for Humanity. Every state has
A couple locations. And they usually have a big variety of
Building supplies and you can make requests and
They will contact you when they receive material that match your request.
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Old 12-07-2023, 08:25 PM   #16
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Interesting idea! Thank you!
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Old 12-08-2023, 07:58 AM   #17
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You can purchase Foamular 250 Extruded Polystyrene (XPS) Insulation at Chas. E. Phipps. They are offering 4'x8' sheets with prices ranging from $29.91 to $88.87, depending on the size and specifications you need
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Old 12-08-2023, 02:38 PM   #18
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Thank you!
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Old 01-13-2024, 02:26 PM   #19
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Quote:
Originally Posted by Trent97 View Post
Absolutely lol. However, a roof raise is kind of not an option for me. So maybe 2" will be plenty? I mean I'm no cry baby for being too hot or cold, I'll have a solution one way or another.
It's 40 below where I am today and was nearly 50 below last night. Running only one of my diesel heaters set at 60 degrees (not that it'll actually keep the temperature at that point) and I'm seeing an average of 50 degrees on my floor. I used 2" Halo Subterra and haven't even skirted in the unit. Mind you, I also have insulated walls with insulated steel doors at the front and back of the living quarters, in addition to roughly 3" of spray foam insulation in the ceiling and the sides, so that greatly helps seal the unit. 4" in the floor would be nice, but I kind of like not banging my head into stuff. Cheers!
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