Is Roxul insulation better than fiberglass?

Water resistance: While fiberglass insulation tends to soak water up like a sponge, Roxul is incredibly water resistant. If you worry about mold or mildew growing in your insulation, or you live in an area that is prone to floods or other storm issues, then Roxul is the naturally superior choice.

What is better insulation fiberglass or cellulose?

At 3.5 per inch of material, the R-value of blown-in cellulose is 23% better per inch than fiberglass batts! According to research done at the Oak Ridge National Lab, fiberglass loses up to 50% of its R-value in very cold conditions; making cellulose a better choice for homes in northern climates.

Is Rockwool better than fiberglass for sound?

Rockwool is easier to work with than fiberglass and is better for acoustic panels than fiberglass. It is also better at absorbing low-frequency range noise than comparable fiberglass. I recommend using Roxul in acoustic panels and traps, and use the fiberglass in wall and ceiling cavities where it is fully closed in.

Which type of insulation is best?

Overall, if you are looking for the best long-term solution, foam insulation products will create the air seal in your home that will make it more comfortable while saving you money on your monthly energy bills. Foam insulation doesn’t settle or sag and it fills all the nooks and crannies where it is installed.

What are the disadvantages of Rockwool?

The only disadvantages of Rockwool are that it is not biodegradable and can be slightly more expensive than similar insulating materials like fiberglass and cellulose.

Do I need a vapor barrier with Roxul insulation?

roxul Comfortbatt is an unfaced semi-rigid batt insulation and a vapor retarder may be required by building code depending on the geographic location of the building. The use of a vapor retarder will limit the amount of water vapor that will move to the outside wall – reducing condensation in the wall assembly.

Is cellulose more expensive than fiberglass?

When comparing blown-in insulation, both fiberglass and cellulose are nearly identical in price, both costing around $0.70 to $0.80 per square foot for 6 inches of insulation. Fiberglass batts, however, are less expensive, costing on average $0.30 to $0.40 a square foot for 6 inches of insulation.

What insulation is best for soundproofing?

When soundproofing is your goal, your best options out there are fiberglass insulation and blown-in cellulose insulation. Both materials are incredibly good at their jobs; they insulate incredibly well but also have the coveted noise-reducing properties that many homeowners are seeking.

Is Roxul the same as rockwool?

ROXUL Inc., the North American division of the ROCKWOOL GROUP, the world’s largest stone wool manufacturer, announces it will commence a full rebrand to ROCKWOOL. The ROCKWOOL brand has been marketed proudly and internationally for 80 years and now will be adopted in North America*.

What is the most efficient insulation?

Fiberglass insulation still allows for airflow into the attic. Spray foam insulation is the most energy-efficient insulation to create an air barrier in the attic. Certain spray foams can expand up to 100 times its original size, so it fills all of the nooks and crannies in the attic.

Is Roxul denser than fiberglass?

Roxul is denser than fiberglass, and may be worth the upcharge for a variety of reasons. But before you invest in Roxul, find out how much it would cost to insulate your walls with dense-packed cellulose — a much better choice for an 8-inch-thick wall.

Is damp-sprayed cellulose better for thermal performance?

But even low-density damp-sprayed cellulose will beat both on real-world thermal performance, since it eliminates the inevitable thermal-bypass channels of compressions and gaps that occur in even the most meticulous batt installation.

Is Rockwool insulation better than fiberglass?

It’s also interesting to note that Owen-Corning is moving into mineral wool insulation manufacture too. Rockwool is easier to work with than fiberglass and is better for acoustic panels than fiberglass. It is also better at absorbing low-frequency range noise than comparable fiberglass.

What are the acoustic properties of Roxul products?

The acoustic properties of different Roxul products depend on their thickness and density. Safe’n’Sound has a density of 2.5 lb/ft³, an STC (sound transmission class) of 45 on 16” center wood studs, 52 with 24” center steel studs, and 50 when used between floor joists.