Attic Insulation Rockwool Vs Fiberglass

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

Attic insulation rockwool vs fiberglass.

Learn more about their properties before choosing. This makes rockwool a little better at insulating than fiberglass. Fiber glass mineral wool vs. Fiberglass may be cheaper but this reduced cost comes with less soundproofing and fire resistance qualities.

This is one of the most cost effective areas to add insulation. Fiberglass has an r value of 2 2 2 7 per inch while rockwool has an index of 3 0 3 3 per inch. 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. Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation.

Cellulose insulation comes in three types and is used exclusively for attics and wall cavities. 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. Batt insulation take time to read this column. Spray foam pink fiberglas vs.

General use of rockwool and fiberglass. Before choosing blown vs. If you plan to add thermic insulation to your room as well consider this. Loose fill mineral wool does exist but it s difficult to find.

If fiberglass insulation gets wet it becomes soggy and its insulating value drops significantly. Fiberglass and rock wool absorb less than 1 percent of their weight whereas cellulose absorbs 5 20 percent of its weight. Blown in insulation requires a professional. Loose fill fiberglass insulation provides a quick easy and economical way to insulate attic floors and wall cavities.

Rock wool generally costs more than fiberglass insulation. 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. 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. When comparing rockwool versus fiberglass insulation both materials offer similar levels of heat resistance and ease of installation.

Attic and pipe insulation applications. Both materials are versatile and popular choices among. Rockwool is actually r23 5 1 2 so you re right it can carry a higher r value there.