Attic Hardboard Insulation

Adding an inch of hardboard insulation to the outside of the studs in the pacific nw does not provide enough insulating value to keep the temperatures inside the wall above the dew point so it is inevitable that this arrangement will cause condensation within the wall space.

Attic hardboard insulation.

Insulation our building science makes insulation br smarter. From schools to businesses to family homes our insulation works everywhere. The band joist helps prevent windwashing. When installing a raised top plate place a band joist at the open joist cavities of the roof framing.

The products are easy to handle score cut and install and no special tools are needed. Rockwool comfortbatt is a semi rigid stone wool batt rockwool comfortbatt is a semi rigid stone wool batt insulation for exterior wood and steel stud applications in both new construction and renovations. Also attic access hatches are notoriously leaky. Bonus rooms are often the least comfortable room in a house and the main reason is that they are the most flawed part of the building envelope especially the attic kneewalls.

You can build an airtight entry attic but you should know that the more it is used the leakier it gets. Yesterday i was doing a home energy rating for quality assurance in augusta georgia and the house i was in had a bonus room. Its expert engineering lets you create the most comfortable environment without compromising your design. In the photo at left the kneewall is the short wall with the door in it.

It features a unique flexible edge designed to compress as the batt is inserted then spring back expanding the batt against the frame studs to give a complete fill. Attic space can be used for storage but only if you build an elevated platform above the insulation. The attic insulation where air entering the soffit vents flows through the attic insulation. Trying to keep the attic not vented since we have the hvac system in there.

Then to make matters worse the semi impermiable hardboard insulation. Attic living space seal hardboard cathedral ceiling insulation techniques. Foamular extruded polystyrene xps rigid foam insulation offers foamular extruded polystyrene xps rigid foam insulation offers a comprehensive line of products in a wide choice of sizes thicknesses and edges with a lifetime limited warranty for the life of the home or building. Most ceilings are made of 1 2 drywall.

In this case you have a choice of several prescriptive materials approved by the code as ignition barriers. I had open cell spray foam insulation in my attic and after 8 months it still had a chemical smell i posed about this on this forum. The contractor removed it and suggested to replace it with a 3 inch hardboard insulation and 5 5 inch rockwool on the rafters. Smartshield 3mm 16 x50ft reflective insulation roll foam core radiant barrier thermal insulation shield commercial grade 16 x50 4 6 out of 5 stars 394 39 99 39.