Compressed Insulation Attic

We can compress insulation and increase the performance of it right up to the point where the main mode of energy transfer is through the material of the insulation itself.

Compressed insulation attic.

This guide to proper attic insulation includes tips on vent areas gaps right side up puckers loose or compressed insulation animal nests mold mildew and rusty nails. It helps your home stay cool in the summer and warm in the winter. Then there are lots of questions that need answers about permits structure air barrier insulation and roof venting. For wool types of insulation fiberglass mineral wool steel real wool etc while it varies based on material this is typically much denser than we are able to get it via compression on the job site.

There are different types of attic insulation and they each have their pros and cons. When you compress fiber glass batt insulation the r value per inch goes up but the overall r value goes down because you have less inches or thickness of insulation. Compressing r 19 insulation typically 6 thick into a 2x4 stud cavity that is 3 deep. Simple thermal analysis reveals that if you have 5 missing insulation in an attic bare sheetrock you ll have a slightly more than a 54 drop in r value.

The chart below indicates the compressed r value of standard building insulation products when installed in framing cavities with a depth that is less than the labeled thickness of the insulation. If you want to know how to get raccoons out of the ceiling the same sort of principles apply. If you need your home s insulation to deliver if you need your home s insulation to deliver comfort try the owens corning ecotouch as it s soft to the touch easy to cut and install. Pull up and dispose of any material that s compressed water stained or moldy it s useless.

Some types of insulation are found in older homes and some of them may no longer be used. If your new subfloor is part of a plan to make the attic into living space. Always wear a mask. Then use the numbers in the chart at right to estimate its r value.

When compressed to less than its labeled thickness glass fi ber insulation will experience a reduction in r value. These thermal defects undermine the r value of your attic insulation. If it is cold storage just compress the insulation the difference will not be noticeable. Install the r30 unfaced batts insulation for your attic projects.