This is a 35 yr. old 2,200 sqft. house located in Madison WI.
Originally Posted by momoformula70
Has 1" of rigid foam on the outside under cider siding. 2"X4" with fiberglass/vapor barrier/drywall. The attic is vented with 12" blown celluous. The home is air tight with estimated .2 ACH at average winter conditions (17^F, 7.5 mph wind). The house has a full basement with part finished.
Your nose a good sensor for some pollutants. Better than most gadgets that are available for home testing. Outgasing of pollutants decline with time. Most foams are safe with adequate ventilation rates. Most homes with normal indoor materials with an air change in 4-5 hours have low levels of pollutants. Try to stay objective.
Bear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
Use +Merv 10 air filter. -Don't forget the "Golden Rule"