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Old 06-04-2018, 11:14 PM   #1
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Spray Foam Luck

So I'm at the gym today and run into the brother of a kid that used to work for me when I was doing construction. After the kid left me, he opened his own waterproofing business. I thought of him when I saw his brother and asked if he did spray foam insulation. He says "No, but I do". Sweet, what would you charge me to spray my bus. He says" We bought it to do a couple jobs and it paid for itself already, so it just sits on the trailer at the shop. You want your bus sprayed, come and get it and do it yourself. Well that just made a spray foam job fit in my budget. I think I'll have access to a possible purchase of the equipment and be able to offer it to other skoolies for less.

Day ended well after a poor start. I had nothing planned today so i said F**K It and jumped in the truck to drive 20 miles to the DDS to take my airbrake endorsement test. Called ahead and was told no appointment necessary, it's a walk in test, can be taken up until 1/2 hour before closing. So I drive down there to find the parking lot empty. While she told me the hours of operation, she failed to tell me they are closed on Mondays. I hate wasting 40 miles. I took a 100 question test on line and passed easily. The real test is only 25 question. I'll try again tomorrow.
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Old 06-06-2018, 09:57 AM   #2
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Raw Deal on the AB test, but pleasant rebound for the spray foam gear.
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http://www.skoolie.net/forums/f11/97...ion-22324.html
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Old 06-06-2018, 10:37 AM   #3
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Hmmmm... i may take you up on the Spray foam, you are not too far away. Skoolie.net discount!
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Old 06-21-2018, 02:07 AM   #4
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So I figure before I mess up my bus I should go see tis type operation in action. I Google for a local contractor and find none I'd get up early enough to drive to. Then I thought, wait a minute, YouTube, yep there it is. I didn't realize it expanded so much, so fast. I need to see where my buddy was getting his materials and compare prices. The cheapest DIY kit I've found covered 1350bf for around $800. I figure my bus is close to 18' floor to floor, and at least 35', or 664sf. Need 2 coats to get 2" everywhere, so it looks like some spaces will get rigid board.
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Old 06-21-2018, 05:13 AM   #5
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Thats my plan as well. I'm going to do the initial coat and see what I have left of the spray foam. I'll do a second pass and anywhere that doesn't get a second coat will get foam board.
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Old 06-21-2018, 11:12 AM   #6
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Quote:
Originally Posted by Ninjakitty View Post
Thats my plan as well. I'm going to do the initial coat and see what I have left of the spray foam. I'll do a second pass and anywhere that doesn't get a second coat will get foam board.
Advantage to multiple 1" coats is that each coat cures before the second, adding a double vapor barrier. Also by the time I'm ready for the second coat I should have a feel for the gun and accurately finish the job without too much shaving afterwards. I think I will take the time to mask all the ribs to aide in cleanup.
The foam comes in 2 steel canisters, I don't think there's a way to know how much you have left.
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Old 06-21-2018, 11:13 AM   #7
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I think you go until it's gone lol
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Old 06-21-2018, 11:20 AM   #8
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Quote:
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I think you go until it's gone lol
You don't have to, but you'll likely need more nozzles. The foam doesn't do anything until it's mixed at the nozzle.
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Old 06-25-2018, 07:47 AM   #9
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Quote:
Originally Posted by o1marc View Post
Need 2 coats to get 2" everywhere, so it looks like some spaces will get rigid board.
You sure about that? I don't know squat about spray foaming but I don't think I've ever seen anyone doing two coats. I think Dzlfreek only did one coat but I think he also only did 1 1/2" as well.


https://www.youtube.com/channel/UCQd...oR9BNuXcjiPz2A
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Old 06-25-2018, 10:50 AM   #10
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Originally Posted by Brewerbob View Post
You sure about that? I don't know squat about spray foaming but I don't think I've ever seen anyone doing two coats. I think Dzlfreek only did one coat but I think he also only did 1 1/2" as well.


https://www.youtube.com/channel/UCQd...oR9BNuXcjiPz2A
Doing some research showed that by doing mulitple coats with a cure time between each coat gives you a second vapor barrier. A kit will only cover the space with one inch, thus the second kit or coat to get the desired thickness.
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