Removal / Discussions

...removal of wall panels and the ancient insulation aka 100-years-of-mold, the house is pretty drafty. I want to test for radon to see if I should build in a radon mitigation system before encapsulating the crawlspace- but wondering if I'll get reliable results with so much passive ventilation going on. We always recomme...

...removal works fairly well when there are no other options, but as it only dilutes the existing air, you will likely find better results with source removal, as in a radon stack below a membrane. If you can I would extend that over the concrete and cover it with insulation and a wooden subfloor if you can, its most like...

I have a 950 sq ft home, 65 years-old, in Arizona. Block construction, on cement slab, wood roof now insulated with 3" of foam. I have measure the radon with Airthings Waveplus and it varies between 3.5 and 6.5 daily during winter with all windows closed and the heat cycling on and off. I know I could drill into the sl...

There are mold stains on the ceiling of my bathroom, spots about 1 cm in diameter each). I would like to know which non-toxic product I can use to remove them. There is no fan in the bathroom and no window. There is a skylight that is not waterproof and it is very humid in summer. Will a dehumidifier help? The first th...