| Author |
Message |
Johnny (67.242.221.140)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, May 17, 2003 - 11:56 am: | |
Several people here mentioned insulating the floor with spray foam. This sounds like a good plan (doesn't take much room, light, should last forever if done properly), but I have a minor problem: Anyone know of someone in the New England area who does spray-foam? Alternately, can I buy it in spray-cans to do myself? I'm not ready for this yet, but want all my ducks in a row before I go any further. |
Jim Ashworth (Jimnh) (172.171.60.235)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, May 17, 2003 - 7:20 pm: | |
Warning-- spray foam in a can does not stick to open surfaces. It is designed to fill gaps around doors, outlets, windows, etc. It will not stick to a ceiling (been there, done that) assuming you will be spraying under the floor since foam board could be used on top of existing floor before putting down 1/4" ply or similar. You will need the two part foam to make it stick overhead or to walls. There are people who spray-foam houses with non-formaldehyde foam in New England.
Jim |
Gary Stadler (Boogiethecat) (68.7.217.217)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, May 17, 2003 - 10:04 pm: | |
You can get two part foam kits from McMaster-Carr (online) that do the job just fine. I used a combination of one part foam and two part foam... Some places, at least for me, were much better done with the one part expanding stuff, like side-walls down low where it's between things, etc. But as Jim says, unless it's contained it will just fall off, that's where the two part stuff is great. It goes on fast, evenly, and is fairly easy to apply
Cheers
Gary |
Steve (68.5.226.25)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 20, 2003 - 1:53 am: | |
How is spray foam in a fire? |
Gary Stadler (Boogiethecat) (68.7.217.217)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 20, 2003 - 4:21 pm: | |
How is spray foam in a fire? BAD NEWS
The stuff is extremely flammable, especially if it has been "trimmed" thus exposing it's cell walls. I made the mistake of not finishing all my welding inside the bus prior to foaming the ceiling and walls.. and found that arc welding spatter sets it on fire super-easily. And as it burns, it emits some really noxious smoke.
Ok, the good part is that if it's sandwiched between metal where oxygen can't get to it, it seems to self extinguish fairly easily, or not catch at all, and if you manage to accidentally catch some exposed foam on fire, a fast whack with the welding gloves will put it out. But it's gotta be fast because the fire spreads across the stuff very quickly.
My recommendation is to design things so it's not ever exposed to a source of ignition, preferably sandwiched between metal sheets (or at least plywood)... if you're welding around it, do have a big C02 extinguisher handy, and if the bus ever catches on fire to the point you can't put it out, run like hell!!!
Cheers
Gary |
FAST FRED (67.75.109.136)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 21, 2003 - 5:21 am: | |
Has anyone a cheap source for this Ozite with foam backing ?
Would anyone be able to comment in the effictivness of Ozite compared to FG 2X4 ft cieling covering pannels , that HD sells for noise controll?
For Das Boat,
FAST FRED |
Doug Dickinson (Dougd470) (65.161.188.11)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, May 22, 2003 - 10:10 am: | |
Is there a flame retardant type of spray foam? |
|