Has anyone here made their own stress skin panels?
I've just done a microgoogle and it appears you could glue a sheet of
eps between osb, slip it into a vacuum bag and have yourself a SIP. Am
I missing anything?
> > Do you have something against manufactured SIPS?
I think quite the contrary, I looked VERY hard at using them for a new
shop that goes up in about 3 more weeks.
After you factor in the labor savings since they go up so fast, the
superior insulation qualities, and that you can just paint the inside
in some locals, or put drywall on if that's required, you are pretty
Locally I could NOT find a builder that knew what i was talking about,
and especially one that would build with them. I received 4 quotes
from manufactures, not one of them had a builder in my area.
I also wrote the www.sips.org, and never heard from a builder.
I went and looked. It would be nice if someone referring to a
relatively new product would call it by name the first reference
to it instead of xyz or whatever.
BTW, I never got to the specs at that site because they asked for
my agreement to a long list of crap and I left. I get enough
Here is how I did mine. http://www.asberry.net/home_building.htm
I have some scrap pieces that have exposed to the weather for nearly 6
years. The top side OSB still looks new. The side on the ground is
moldy. The OSB the manufacturer used was from Weyerhaeuser. I think
the glue must have been better than normal OSB. They had some in their
office in a bucket of water. It had been there since 1987.
I'm not sure vacuum bagging would provide enough pressure. You would
for sure have to bag them on a flat surface or you would cure in bows
I've been to the factory. They have a 24" press cavity. Any
combination of 4", 6", 8", 10" or 12" can be pressed. From the time
the first panel is glued they have 20 minutes to apply pressure.
--Andy Asberry recommends NewsGuy--
I got my SIPS from Murus in Mansfield PA, we had a lot of material
remaining from door and window cut outs, that I kept and used to build
a shed - mine were 1/2 OSB 6 1/2 polystyrene insulation and 1/2 drywall
- they weren't used structurally, rather they enclosed a pole frame
I was thinking Sips for insulated roof but was advised against it by
the building inspector and architect. It's find when new but if you get
slightly faulty panels with any air gaps or the panels aren't sealed
tightly at the joins and then in a few years a leaky roof, water can
get in but have no way to escape causing mold. In the end went with
spray foam insulation instead, with an air gap above the foam and then
the roof deck with shingles.
If there's a high rate of "faulty panels", that's one thing - and I'd
be all over the manufacturer. However, if someone installs them
improperly, that's another. Water from the roof shouldn't even get
near the SIP itself. That's an issue with the rest of your roofing
system. (Or, more likely, with your roofer.) Is it possible they were
talking about moisture from condensation?
Dont make your own sips
geez sips are a pretty bad method of construction in my opinion
you are basicaly building in the life of the structure.
once the sips start to delaminate the whole structure should be torn down.
anyway I saw a factory that makes the sips pannels
they are spray foam between the sheets
the foam itself expands under presure and heat and is the glue.
they build foot thick ones for Alaska where a sip is really needed.
if you want to fill your walls with foam
just stick build and hire a foam spray company
its just my opinion I dont like the stuff unless there is a serious reason.
Very difficult to find info as most producers consider what they have as
"propitiatory" lol. Give thought as to how you want the panels to tongue
and groove together, research what foam is suited to sandwich between what
medium you want. Doesn't have to be same on front and back sides. Come up
with a jig to produce all panels the same +/- 1/16 inch. Not necessary to
vacuum panels together tho that would be one way. stack and weight panels
until cured or squeeze vertically.
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