igrout
Member
Writing to ask for advice if I need to add a vapor barrier to the walls or ceiling of my pole barn style garage before insulating and heating? I'm insulating both the walls and ceiling of this building to make the building usable in the winter to work on classic cars (I live in Buffalo, NY) but also to reduce the humidity so my tools and cars won't rust.
My garage is 25'x32' and has a poured concrete floor. The garage is currently uninsulated. The walls are built pole barn style, sheeting is OSB (the sheeting was not wrapped with any vapor barrier under the vinyl siding on the outside of the walls) engineered truss roofing, 2 basic windows, and a man door and an overhead door. There is no ridge vent, or spinning roof vents.
Insulation plan is to build interior walls to hang fiberglass bat insulation and luan plywood interior walls with luan plywood ceiling below the trusses with blown in insulation on top.
Currently the humidity is very high 80 to 90 percent (are feels damp) as the temperature hovers around freezing according the hydrometer, and tools not treated with fluid film have started to rust. I'm concerned that the cars will start to rust too, just bought this property in the past year.
Do I need to add a vapor barrier, or just the insulation, plus heat, plus a dehumidifer bring the humidity down to 50? Do I need to add a ridge vent so there is more air exchange in what will become the attic?
My garage is 25'x32' and has a poured concrete floor. The garage is currently uninsulated. The walls are built pole barn style, sheeting is OSB (the sheeting was not wrapped with any vapor barrier under the vinyl siding on the outside of the walls) engineered truss roofing, 2 basic windows, and a man door and an overhead door. There is no ridge vent, or spinning roof vents.
Insulation plan is to build interior walls to hang fiberglass bat insulation and luan plywood interior walls with luan plywood ceiling below the trusses with blown in insulation on top.
Currently the humidity is very high 80 to 90 percent (are feels damp) as the temperature hovers around freezing according the hydrometer, and tools not treated with fluid film have started to rust. I'm concerned that the cars will start to rust too, just bought this property in the past year.
Do I need to add a vapor barrier, or just the insulation, plus heat, plus a dehumidifer bring the humidity down to 50? Do I need to add a ridge vent so there is more air exchange in what will become the attic?