Grain Bins and Silos
Hoosier Square, we spray high density polyurethane foam on grain bins.
Typically we spray in the joint between the bin and the concrete.
accomplishes three things. It stops the water from going into the
bin from the concrete side as well as providing a positive path for the water to
run off; additionally it provides for condensation protection in the
bottom of the bin.
have sprayed old silos and new. For more pictures CLICK
In our ongoing research for
better products for our customers, we have come up with a system to stop
mice and vermin. Given the opportunity, mice would just love to
honeycomb through the foam, especially if the foam is attached to a
farrowing house with lots of access to feed.
These ambitious critters can turn your foam,
after several years of work, into mouse condominiums.
The dark areas left on the walls are where the mice had burrowed out and
had been nesting, the light colored areas are all that were left holding
the foam in place when we scraped it all off for the customer.
We then sprayed high density foam, covered it with 1/4" galvanized mesh
wire, held in place with roofing cap nails, then sprayed it with foam
This combination makes for a very tough nonpenetrable
For more pictures
and a longer explanation of MOUSE GUARD, CLICK
Normally we spray 1" of high density
polyurethane on the sidewalls of a polebarn (R7) and 1 1/2" on the
underside of the roof deck (R11).
We have found, that for stopping air
leakage, and holding in heat, this does an effective job.
It is important to note that one should always put more insulation in the
ceiling than on the walls to minimize condensation. That is, heat rises, along with the
moisture, and where the moisture "sees" the dew point, it
will condense out.
Just like in an old house with solid wood around the windows with single
pane glass, as the temperature drops outside, the first place you see the
moisture from condensation is right on those windows and around that
wooden frame. So if you have enough moisture in a pole barn, you
will want more insulation above you than on the sidewalls. That way, if
you do get condensation, it will be on the sides, instead of dripping
on you or your equipment.
More Pictures and Video of Pole barns CLICK
Foam will normally degrade about 1/16" per
year in direct sunlight. The easiest way to stop it is to coat it
with a heavy latex or acrylic paint. There are acrylics available
such that we can give a 5, 10 or 15 year coating and warranty on the
material on either vertical or horizontal (roofs) applications.
For more pictures and info