Attic Insulation Rockwool Vs Fiberglass

Use rockwool thermal stone wool insulation to insulate the attic of a new build extension or to increase the r value and top up the current attic insulation especially in an older home.

Attic insulation rockwool vs fiberglass.

Rockwool is actually r23 5 1 2 so you re right it can carry a higher r value there. Before choosing blown vs. Loose fill mineral wool does exist but it s difficult to find. Batt insulation take time to read this column.

Both materials are versatile and popular choices among. Attic and pipe insulation applications. If you plan to add thermic insulation to your room as well consider this. General use of rockwool and fiberglass.

If your insulation is wet you have a lot bigger problems than worrying about your r value diminishing. Plenty of fiberglass manufacturers make high density batts such as r 15 for a 2 4 wall or r 21 for a 2 6 wall. This is one of the most cost effective areas to add insulation. Batt insulation is available at home centers and lumberyards.

If fiberglass insulation gets wet it becomes soggy and its insulating value drops significantly. Cellulose insulation comes in three types and is used exclusively for attics and wall cavities. Insulation project calculator how to install naima r value certification product training videos colab learning video library for pros distributor locator why owens corning insulation propink vs. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

When comparing rockwool versus fiberglass insulation both materials offer similar levels of heat resistance and ease of installation. Learn more about their properties before choosing. Fiberglass insulation rated at r 15 to fit a standard 4 inch wall costs around 0 50 per square inch as of 2013 according to fine. Loose fill fiberglass insulation provides a quick easy and economical way to insulate attic floors and wall cavities.

Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation. Blown in insulation requires a professional. Fiberglass and rock wool absorb less than 1 percent of their weight whereas cellulose absorbs 5 20 percent of its weight. Fiberglass has an r value of 2 2 2 7 per inch while rockwool has an index of 3 0 3 3 per inch.

Fiber glass mineral wool vs. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. This makes rockwool a little better at insulating than fiberglass.