Mineral Wool Insulation - GreenBuildingAdvisor
Aug 22, 2022 · Mineral wool in cavities. When compared to fiberglass batts, mineral wool offers superior insulation. It has about a 22-37% higher R-value per inch. It contains 70% recycled material, making it a greener product than fiberglass at 20-30%. Mineral wool retains its shape better than fiberglass or cellulose.
Is Mineral Wool Insulation Worth the Extra Cost?
Nov 1, 2021 · Looking ahead to insulating his new house, Wiscoguy says he’s planning to use an R-14 layer of exterior insulation along with mineral wool in the stud bays. But there’s a sticking point—cost. Quotes for fiberglass insulation have come in at about $10,000. Mineral wool (sold commercially by Rockwool and Knauf) would cost $16,000.
Mineral Wool Insulation Isn’t Like Fiberglass
Apr 8, 2014 · The third large American manufacturer of fiberglass insulation is Johns Manville, which has recently acquired an American mineral wool manufacturer, IIG (Industrial Insulation Group). Not all of these companies are actively promoting mineral wool for residential building insulation, but it is remarkable that we find all of the major American ...
Mineral wool insulation - GreenBuildingAdvisor
Windwashing in Exterior Mineral Wool Fibrous insulation materials like mineral wool do not stop air flow. Unlike rigid foam (which is a pretty good air barrier, as long as the seams between panels are taped), mineral wool can only slow down air flow, not stop it. So what happens when builders install mineral wool insulation on the exterior side ...
Exposed Mineral Wool Insulation - GreenBuildingAdvisor
May 27, 2021 · We would like to find a way to leave the mineral wool bats uncovered for access to the joists. There is no vapor barrier/retarder on the bottom side of the sub floor. Will installing the mineral wool insulation and then applying a vaper retarder (painting) the insulation be an issue for moisture? We live in zone 4. The basement walls are insulated.
Stucco over exterior mineral wool – StoTherm ci Mineral?
Aug 12, 2020 · I would like to use a stucco finish over mineral wool exterior insulation as an exterior wall. Mainly want stucco for aesthetics, do not have an opinion or knowledge about traditional or acrylic. The Roxul comfortboard installation guide suggests using traditional metal mesh stucco, affixed to strapping, held to the framing with what looks like ...
Insulating a Slab with Rigid Mineral Wool - GreenBuildingAdvisor
Jul 15, 2020 · If your mineral wool is 2" thick, you could have up to 2% compression, about 1/32". In reality any point loads will spread out as they travel down through the concrete, so you probably won't even get 1/32" deflection.
Installing Roxul Mineral Wool on Exterior Walls
Feb 12, 2013 · The walls will have 9 1/4 inches of cellulose insulation (R-32) plus the exterior mineral wool insulation, for a total of about R-40. Mounted on the exterior like rigid foam, Comfortboard mineral wool has the added benefit of allowing walls to dry out to the exterior (research on this topic is available at the Building Science Corporation ...
Mineral wool concerns - GreenBuildingAdvisor
Jun 9, 2020 · There are some concerns about the ichy fiberglass batts, and some warnings to wear protection to avoid inhaling the glass fibers. However, comparing it or mineral wool to asbestos seems inappropriate since the cancer-causing potential of asbestos is well-documented. I don't know much about denim insulation but the material makes great pants!
Wrapping an Older House with Rock Wool Insulation
May 14, 2013 · Exterior mineral wool insulation will keep this house cozy. The mineral wool panels on the walls are held in place with horizontal furring strips. The mineral wool batts on the roof were installed between new 16-inch-deep TJI rafters. Image Credit: All photos: Mark Yanowitz View Gallery 12 images