Perlite insulation? - GreenBuildingAdvisor
Mar 27, 2017 · Mineral wool is a popular insulation recommendation, but it seems expensive and has limited supplier options. I came across some info on perlite (and even vermiculite and lightweight …
Retrofitting CMU with perlite core fill insulation - GreenBuildingAdvisor
May 4, 2024 · I have plans to upgrade the attic insulation, but the 1st floor is difficult. Exterior foam would be very expensive, and I hate to tear apart my whole 1st floor to add studs and interior …
Perlite as insulation - GreenBuildingAdvisor
Aug 26, 2010 · I am wondering about whether it may be okay to use perlite as insulation under a basement slab. I am planning a Passive House and under the current plan, I would use 4 inches …
Lightweight insulating (perlite) concrete footing - GreenBuildingAdvisor
Oct 10, 2012 · I'm considering perlite concrete for my basement's subslab insulation. The sub slab will need to be rather thick to get the level of insulation. If I use a 6 to 1 volume of perlite to cement and a …
Perlite vs. rigid foam insulation - GreenBuildingAdvisor
Feb 8, 2016 · Boris, The use of perlite under concrete slabs is discussed in my article, Building a Foam-Free House. This method is experimental. It is untrue that using perlite under a slab is "easier" than …
How to detail underslab perlite insulation at doorways/thresholds ...
Feb 8, 2011 · Climate Zone 5B/6B - Spokane, WA (east side of WA - cold winter - 6800 heating degree days, dry - about 16" rain/year, water table is usually quite low and soils are well drained). In an effort …
Wall Assembly Comparison - Chat GPT - GreenBuildingAdvisor
May 28, 2025 · Perlite fill: R-2.7 to R-3.0 per inch (loose fill) When perlite fills the cores, the overall assembly R-value increases substantially due to reduced thermal bridging and added insulation. The …
Perlite compressive strength? - GreenBuildingAdvisor
Jun 25, 2013 · "Perlite conforming to ASTM C549, and provided in easy-to-install, lightweight bags (either plastic or paper) may be used as insulation below concrete floors." The image below is a table …
Best loose fill insulation for concrete block? - GreenBuildingAdvisor
Oct 4, 2013 · The frost wall of our addition is concrete block. What is the best loose fill insulation for the hollow cores? Vermiculite? Perlite? EPS beads? (I understand they are made with the waste of EPS …
Perlite for walls vs Dense pack Cellulose - GreenBuildingAdvisor
Apr 30, 2016 · Hello- Has anyone used loose fill perlite for wall cavity insulation on wood framed exterior wall. I am interested in the least toxic insulation for the walls. But I am a little concerned about the …