Is there radon in water / Guides

Radon and vapour barrier below slab on grade floor
Healthy indoor air quality

Vapour / radon barriers below slab floors

...isture from wicking into concrete and disbursing it into homes, also to create a radon barrier. Radon gas occurs naturally in the soil, a result of decomposing uranium in the ground. So it's everywhere, but more intense in some locations than others. A passive radon stack are also a prerequisite under the LEED for Ho...

Condensation on windows leads to mold & mildew in homes, ERV & HRV systems help

Ventilation & air exchangers between an HRV & ERV system, see here Indoor air quality is important for many reasons: Preventing moisture issues such as rot and mold Preventing damage to windows from condensation Preventing respiratory illnesses caused by interior contaminants Reducing heating costs by not heating exce...

Exterior damp proofing and drainage mat to protect basements from wate
Insulation and soundproofing

Best practices for basement insulation in new home construction

...ineral wool batts in cavities drywall with latex paint as vapour retarder. Note: Not having proper exterior moisture protection for this wall assembly will mean moisture will migrate inwards. Mineral wool is not harmed by moisture, but there may be additional heating and coolling loads inccured by having higher r...