Rockwool is also called mineral wool insulation and is actually made with rocks and minerals. It is a “green” option of insulation since it is made up of waste from steel manufacturers. It looks a lot like fiberglass with a fiber texture along with coming in batts of different sizes, usually in a greyish color.
Rockwool Insulation Benefits:
- It has a good R-value at or about R-4 per inch.
- It is heat resiatant and won’t melt or compress due to high temperatures
- It doesn’t absorb water or grow mold.
- It stays in place well once installed.
- It doesn’t need to be faced, unlike fiberglass batts.
- Anyone who can install fiberglass batts will have no trouble installing rockwool batts.
Rockwool Insulation Drawbacks
- It is hard to find. Smaller contractors might not be able to find it for you.
