Animals Fill A Barn With Damp Air
Foam on the ceiling handles the water vapour that livestock add to the air every hour. A milking herd near Heidelberg, a hog finishing room or a layer flock breathes out gallons a day. In winter that warm, wet air climbs to the coldest surface it can reach, which is the roof.
When it condenses up there, water drips on stock and bedding, and wooden trusses start to rot. A foamed ceiling stays warm and airtight, so the fans can carry the moisture outside instead of leaving it on the roof.
Washdown Barns Need Foam That Does Not Soak Up Water
Closed cell foam has a hard skin with sealed cells. Water from a washer runs off it, rather than sinking in and sitting against the framing the way soggy batts do.
That makes it a good match for milk houses, poultry barns and farrowing rooms that get scrubbed between groups. Cured foam also holds up to the ammonia in hog and poultry air.
Barn Spray Foam In Old Bank Barns
Closed cell is the common choice for the stone stable level of a bank barn. Many older barns around Elmira and St. Jacobs are set into a hillside, and the uphill wall of the lower level stays damp the whole year.
We spray closed cell foam over the framing and stone so that wall stays drier and warmer. First we look at the drainage and any loose mortar. Foam does not stop water that is actually running through a wall, so we tell you if that needs fixing first.
Mice, Starlings And Foam
Foam leaves mice and starlings nothing soft to nest in, which batts never manage. It also closes gaps along the sill and eaves. It is not chew-proof, and we will not claim it is. What it does is take away the warm nesting pockets pests go looking for. For machine storage, see our pole barn foam page.
Fans Work Better In A Sealed Barn
Barn spray foam makes mechanical ventilation more predictable. Exhaust fans pull air in through planned inlets, and every crack along the sill or eave is an inlet nobody planned. Those leaks dump cold air straight onto animals in the pens below.
Sealing the shell means fresh air enters where the inlets are set, mixes overhead and warms before it reaches the stock. Your ventilation dealer can then set the fan stages for the barn as built. We work around inlets, fan boxes and curtain openings so nothing gets covered that should stay open.