Pole Barn Roof Vapor Barrier

A well engineered wall often incorporates an air barrier such as tyvek on the outside of the insulation and a vapor barrier such as a 6 mil or greater polyethylene on the inside.

Pole barn roof vapor barrier.

In the morning when the sun comes up the steel on your roof is cool and the humidity is high. Single bubble vapor barrier is a bubble wrap type material that is faced with reflective foil on the upper side and white vinyl on the inside. Post frame buildings or pole barns are popular for commercial industrial and agricultural purposes. From storage to hobby shops protecting the interior of your pole barn from extreme temperatures and moisture is important for comfort health for you or your animals and to prevent damage to your equipment.

Steel roofing is a highly conductive material in terms of heat transfer. Single bubble vapor barrier acts as a reflector. That outer air barrier also creates a surface for foam insulation to adhere to which can be helpful. In a non insulated pole barn there will be a large amount of heat transferred in and out.

Vapor pressure is what drives water vapor through a vapor barrier. I am considering putting up poly or tyvek mike the pole barn guru responds. If an exterior steel panel is ever damaged and has to be replaced. Vapor pressure changes with temperature and humidity.

If your post frame building has barn style flat on the exterior of the columns girts how about install a thin layer of osb to the inside of the girts then spray foam against the osb. Wall roof ceiling insulation. As the sun warms the steel on the roof the outside of the roof naturally heats up faster than the inside of the roof creating condensation and allowing moisture into your pole building. Single bubble vapor barrier and 2.

It blocks condensation from dripping into a pole barn and runs it out of the eaves as well as adding a slight r value to the roof and also. Should i have a vapor barrier between the planks and the blown in insulation. If vapor pressure gets too high in your barn any vapor barrier will cease to work regardless of the material used or how carefully you seal it up. The radiant barrier reflective insulation is a vapor barrier so you would be sealing insulation between two vapor barriers not a good choice.

Pole barn or post frame buildings are typically constructed using wood framing with steel roofing and siding. I am concerned with air dust dirt leakage between the planks.