Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Roxul vs fiberglass attic.
In the past i ve been using roxul rockwool but i got a delivery of fiberglass by mistake and i am thinking hmmm maybe i ought to get this stuff taken back and get my roxul.
But given that the material is fire resistant water resistant and highly efficient the small amount of extra money you spend on it will likely be worth it.
The average house fire is about 1100ºf meaning rockwool can stand up to most dangers within a house fire and give you time to get out.
Roxul safe is ul and intertek approved as a forming material for numerous firestop systems.
While both fiberglass and rock wool can help block noise rock wool s greater density and weight make it a slightly better sound blocker than fiberglass.
I wasn t doing a comparison but it s light as fiberglass is also light.
From my very limited knowledge the main advantage to roxul is that it won t mold if it gets wet.
The doe reports the density of fiberglass.
Roxul and fiberglass have similar acoustic properties when compared to similar products.
I want to use the roxul product in my garage attic.
The boiling point of a more common fiberglass insulation can average between 1 000 1 300ºf 537 7 704 4ºc.
I m in central ohio and typically vapor barrier are required.
None of the roxul products seem to be kraft faced as is typical with standard fiberglass insulation.
This product is designed to fill perimeter gaps between concrete floor slabs and exterior wall systems between firewalls and ceiling slabs and around conduit pipes and duct openings through walls and floor slabs.
It is true that roxul can run up to ten percent more expensive than fiberglass and other insulation options.
The stone wool insulation is slightly more expensive but i did find safe n sound on sale for less than fiberglass.
Insulation rockwool vs fiberglass what s everybody using.
In a well designed and built attic this shouldn t be an issue.