Difference Between Wall And Attic Insulation

The higher the r value the better the thermal performance of the insulation.

Difference between wall and attic insulation. R values vary based on the type thickness and density of the material being used. You can achieve better thermal performance in your attic by adding an additional layer of insulation. Ceiling walls underfloor and between floor areas. The layer of continuous insulation in the 2 4 wall shields the highly conductive steel stud from exposure to near outdoor temperature.

Insulation is designed specifically for each area to ensure it fits the required stud spacing s cavity depth and thermal ratings r values. Foam in place insulation can be blown into walls on attic surfaces or under floors to insulate and reduce air leakage. The main benefit to using blown in insulation is how perfectly and completely it fills the space in between the walls floors and ceilings of your home. Most homes are insulated in the attic and any floors located above unfinished basements or crawl spaces.

These tiny pieces of insulation do a great job at insulating because they spread evenly throughout the space wrapping around any obstacles like the outlets wires pipes and ductwork. Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system. In finished attic rooms with or without dormer insulate 2a between the studs of knee walls 2b between the studs and rafters of exterior walls and roof 2c and ceilings with cold spaces above. Some installations can yield a higher r value than traditional batt insulation for the same thickness and can fill even the smallest cavities creating an effective air barrier.

Attic temperature 0 f outdoors calculated difference. 2d extend insulation into joist space to reduce air flows. As was the case for the ceiling cavity and eave space temperatures total r value does not tell the whole story.