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Best way to attach insulation to the floor

PostPosted: Sun Mar 16, 2008 3:06 pm
by chorizon
Just finished asphalting my floor. I was planning on insulating it before attaching it to the frame. What's the best way to attach styrofoam insulation? I thought about fender washers/screws, but don't how many would secure the insulation properly.

PostPosted: Sun Mar 16, 2008 3:10 pm
by mikeschn
If you can push it into the pockets while it's wet, and let it dry to the asphalt...

but of course, it may be too late for that.

I would try cutting the insulation to be a snug fit, and then press it in, with about 4 or 5 drywall screws and fender washers per piece.

You might also want to check if they make something like duct tape for roofs, and put a piece along each edge (in addition to the screws)

Then again, does anyone one else have any good ideas?

Mike...

PostPosted: Sun Mar 16, 2008 4:04 pm
by Miriam C.
Image

What he said.... :thumbsup: The "evil smelling black goo" is really sticky and will stick to anything. ;)

PostPosted: Sun Mar 16, 2008 4:05 pm
by chorizon
I wasn't sure how much the wind would buffet the styrofoam, but I assume its not too bad. I wonder if aluminum tape would stick to the asphalt. I discovered it a few years ago when repairing an AC duct, its neat stuff.

PostPosted: Sun Mar 16, 2008 4:09 pm
by chorizon
What he said.... :thumbsup: The "evil smelling black goo" is really sticky and will stick to anything. ;)


I'll remember that next time. D'oh!
My wife walked into the garage this morning, wrinkled her nose and said ,"What's that smell", and walked back inside. This was followed five minutes later with a ,"the trailer's not going to smell like that on the inside, is it!"

PostPosted: Sun Mar 16, 2008 4:20 pm
by mikeschn
:rofl: :rofl: :rofl: No... You can tell your wife, once it's dry, it won't smell like that on the inside...
Mike...

chorizon wrote:"the trailer's not going to smell like that on the inside, is it!"

PostPosted: Sun Mar 16, 2008 4:40 pm
by exminnesotaboy
I used construction adhesive along with fender washers & screws. In looking back, I definitely didn't need the adhesive and won't be using it on my next build. I will, however, probably put a screw & fenderwasher every 12" or so.

The condition of the foamboard is a good as when I originally put it in two years ago.

I had to remount some parts underneath the tear recently and the foamboard was a complete pain to remove due to the adhesive.


Image

PostPosted: Mon Mar 17, 2008 9:45 am
by MrBuzz
The sticky asphalt goo did not work for me. The insulation started coming off within the first month. After that I couldn't see the sense in re-insulating the floor. At anything above 30 degrees the TD is plenty warm...the mattress seems to be plenty of insulation between me and the floor.

PostPosted: Mon Mar 17, 2008 7:47 pm
by cablerunners
I was going to use liquid nails....

But I like the screws and washers idea much better...

-phil

PostPosted: Wed Mar 19, 2008 11:36 am
by Wolffarmer
Personally I found it to be a waste of time and money and I will not do it again. Except under where I plan to put a cooler, planning on insulating the cooler compartment. A standy might be different where a person will occasionaly be standing on the floor in bare/stocking feet.

Just my opinion. 8)

PostPosted: Wed Mar 19, 2008 1:13 pm
by Nobody
For most of us who've tried it with & without insulation, insulation wins every time! Mine is probably 'overkill' but I cut the insulation board so it'd fit very tightly then applied a couple of beads of liquid nails (or equivalent) to the evil black sticky stuff on the underside of the floor & put the insulation in place; then decided I needed a little redundancy so I cut some lengths of 3/4"x3/4" boards & used my 18ga stapler/nailer to fasten them to the floor joists as 'keepers'. Nearly 2yrs & several thousand miles later the insulation is still in place with no deterioration or movement. Insulating the floor is a small, inexpensive step that'll pay dividends, & even if you don't think so, it don't cost much, weighs next to nothing, & is something you won't regret doing :thumbsup: Mine looked like this before 'flipping' & mounting on the trailer frame -

Image

PostPosted: Wed Mar 19, 2008 5:33 pm
by razorback
I tacked some extruded metal to the frame. The stuff that 4 wheeler ramps are usually made of. It is a little expensive but the insulation is not going anywhere.
Larry

PostPosted: Wed Mar 19, 2008 6:44 pm
by Dee Bee
Don't create a water trap...

PostPosted: Wed Mar 19, 2008 7:59 pm
by jplock
I didn't put any insulation in the floor the matress is plenty. I have thought if extra isulation was needed I could put the styrofoam sheet under the mattress. I did notice last weekend camping in a thunderstorm while in the sack when I was sleeping on my side with my ear to the pillow the thunder was louder than sleeping on my back. The noise sure comes up through the floor.
jplock
:) :) :)

PS we stayed dry no leaks!

PostPosted: Wed Mar 19, 2008 9:23 pm
by cablerunners
Hi All,

Hoping not to stray from the orginal question...

I would like to say that I did not insulate the floor of my TD.
We have a nice foam mattress and I've noticed that it is moist on the underside after each camping trip. I think it's from condensation (warm mattress against a cold floor). I plan to insulate my floor now...

Something to ponder...

-phil