Attic Insulation Rockwool Vs Fiberglass

Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation.

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. Before choosing blown vs. Rock wool generally costs more than fiberglass insulation. This makes rockwool a little better at insulating than fiberglass.

Both materials are versatile and popular choices among. Cellulose insulation comes in three types and is used exclusively for attics and wall cavities. Blown in insulation requires a professional. Fiberglass has an r value of 2 2 2 7 per inch while rockwool has an index of 3 0 3 3 per inch.

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. This is one of the most cost effective areas to add insulation. 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. Learn more about their properties before choosing.

Attic and pipe insulation applications. Batt insulation take time to read this column. General use of rockwool and fiberglass. Fiberglass may be cheaper but this reduced cost comes with less soundproofing and fire resistance qualities.

Fiber glass mineral wool vs. Batt insulation is available at home centers and lumberyards. Loose fill mineral wool does exist but it s difficult to find. Fiberglass and rock wool absorb less than 1 percent of their weight whereas cellulose absorbs 5 20 percent of its weight.

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. If fiberglass insulation gets wet it becomes soggy and its insulating value drops significantly. Loose fill fiberglass insulation provides a quick easy and economical way to insulate attic floors and wall cavities.

If you plan to add thermic insulation to your room as well consider this. Rockwool is actually r23 5 1 2 so you re right it can carry a higher r value there. If your insulation is wet you have a lot bigger problems than worrying about your r value diminishing.