Pole Barn Vapor Barrier
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.
Pole barn vapor barrier. A vapor barrier can reduce the amount of vapor that penetrates a building from the source of the moisture. Single bubble vapor barrier and 2. Should i have a vapor barrier between the planks and the blown in insulation. Metal roofs are notorious for the annoying drips that occur inside the building.
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. 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. 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. There most common options for insulation are fiberglass blankets and spray foam.
If i use the metal panels is a plastic vapor barrier needed. The radiant barrier reflective insulation is a vapor barrier so you would be sealing insulation between two vapor barriers not a good choice. Shop barn is 45x50x14 and 8 12 pitch with stud walls and lathe is currently in place for the ceiling. In order to control condensation in your pole barn you need insulation a vapor barrier and adequate ventilation.
Some things to consider when insulating a pole barn include. I have a pole barn that has metal siding and a metal roof on large wooden rafters. In a building such as a pole barn condensation can damage building materials. Plastic vapor barriers visqueen should only be installed in vented attics in climates with more than 8 000 heating degree days.
Built on concrete slabs and often capped with metal roofing post frame construction can pose unique vapor barrier challenges. Often pole barn kits are sold not including a vapor barrier in the roof unless specifically requested. Pole barn vapor barrier. Know what your purchasing.
Condensation issues and the specific thicknesses and types of roofing and wall insulation materials. Vapor pressure changes with temperature and humidity. Vapor pressure is what drives water vapor through a vapor barrier. Even when opting not to insulate which a lot of people do a vapor barrier in the roof is very important when closing in all sides of a building.
I am concerned with air dust dirt leakage between the planks. Unlike felt paper which attempts to trap condensation until it can evaporate. I am considering putting up poly or tyvek mike the pole barn guru responds.