New attic fans pulling moist and conditioned air into the attic where it condenses on nails in the attic and rains down on the attic floor.
Closed-cell is more expensive, but this investment will pay off in lower energy bills due to the higher R-value per inch.
While the specifics will change with each home, the consensus is that attic power fans use more energy than they save.
Many older homes have little or no insulation, which leads to drafts and higher energy bills.… Cold rooms in winter and hot rooms in summer.
If you don't properly insulate a metal building, condensation can lead to mold, mildew and rust on the building as well as the contents,
Find out more about when is it just too cold to apply spray foam and what is required to apply it during cold weather.
Chicago has the “perfect storm” for mold and mildew to grow inside buildings and residences. View top strategies to avoid mold in your home.
Most builders face a complicated balancing act. They need to keep the cost of the home or bonus room affordable, and so they do a minimum amount of insulation
Adding spray foam first means you can purchase a smaller HVAC unit, but you need proper ventilation or you will have humidity and mold issues