Replace Insulation In Pole Barn Roof

Weighing what you have to start with my recommendation is to spray three inches of closed cell foam insulation below your roof sheathing.

Replace insulation in pole barn roof.

Depending on the type of barn your requirements may vary. However barns are colder than other buildings and may require more insulation. Pole barn insulation thickness one or two inches. Here the insulation is placed between the inner purlin supported by the truss and the outside metal panel.

The fiberglass insulation used in this method can be as high as r 13 insulation thickness on single layer systems range from r 7 to r 30. R values indicate the insulative properties of the material used. Insulating a barn roof is very similar to insulating any other kind of building. Pole barn or post frame buildings are typically constructed using wood framing with steel roofing and siding.

To repair it there are two primary methods. One or two inch insulation can be placed on the exterior of the building underneath the steel. One is to remove the panels remove the old insulation and replace it with new insulation. It ranges from r 5 to an r 16 value depending on the type.

Closed cell spray foam insulation would need to be added in the area closest to eave sidewalls. Above the roof trusses this choice comes with new construction or a roof replacement. This will provide a greater r value than r19 batts and provides a vapor barrier. When the old panels are removed new larger fasteners are used to put it back together.

Steel roofing is a highly conductive material in terms of heat transfer. In a non insulated pole barn there will be a large amount of heat transferred in and out.