![]() ![]() He and some friends were on a fishing trip. I have a carpenter friend that told me a funny story about plastic sheathing and humidity. If the space is tightly sealed think about exchanging some air to reduce the RH in the space. Might want to think about something like that to sheath the space. This presumes a perfect seal to contain the air.įoam panels are light weight and have very high R values per unit thickness. Often a diagonal shear strip is then mounted across the studs, on the inside of the shed.It's figured as about R-1 for spaces of 1/2" - 4". An example is cedar bevel (lapped) siding that is fastened to the studs and rims, without further sheathing behind it. Sheathing panels provide shear strength to the structure, but in small sheds cladding can also be used for such strengthening. This leaves the joist space free for insulation and accessible from the inside. Most homes have sheathing attached to studs, on the exterior side of walls, then a rain barrier (breathable plastic or black paper), and then the cladding, a.k.a siding. Cladding is siding for appearance and weather resistance. Sheathing is hard panel material for floor, wall and roof, e.g plywood/OSB. If your shed has no sheathing but cladding only, the benefit of an air gap is that any moisture from rain can drip down behind the siding, and ensure that the siding, if wood, can ventilate and dry from behind.Ī clarification on sheathing and cladding: Additional batting can be added on the inside side of the foam. ![]() Dead air space is not needed for insulation, the rigid foam insulation (if XPS, not EPS) forms a moisture barrier and thermal insulation.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |