Insulation rockwool vs fiberglass 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.
Roxul vs fiberglass attic.
Both materials are versatile and popular choices among constructors.
However you can special order r 15 high density fiberglass batts.
The pink foam strips act as lifts on the roof walls to prevent any insulation from trapping moisture.
I recommend using roxul in acoustic panels and traps and use the fiberglass in wall and ceiling cavities where it is fully closed in.
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.
This makes rockwool a little better at insulating than fiberglass.
But given that the material is fire resistant water resistant and highly efficient the small amount of extra money you spend on it.
General use of rockwool and fiberglass.
A fire can happen to anyone but using roxul can potentially help minimize the damage.
In damp locations rock wool retains its thermal and acoustic properties whereas fiberglass deteriorates so use the material that works best for the purpose you need it for.
Fiberglass offers an r value of 2 2 to 2 7 per inch while rock wool has an r value of 3 0 to 3 3 per inch making it a slightly better insulator than fiberglass according to the u s.
Compared to most insulation materials roxul is more fireproof.
The boiling point of a more common fiberglass insulation can average between 1 000 1 300ºf 537 7 704 4ºc.
Fiberglass has an r value of 2 2 2 7 per inch while rockwool has an index of 3 0 3 3 per inch.
The larger the r value the better insulator the material is.
This combination results in a non combustible product which is a major advantage and it means that there are no additional flame retardants in the material.
It is true that roxul can run up to ten percent more expensive than fiberglass and other insulation options.
Fortunately roxul has been proven to be more fire resistant than not just fiberglass but virtually every other insulation product on the market.