An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate.
Visual heat attic.
Since heat naturally travels from hot to cold areas hot air will enter and leave a conditioned home through leaks and holes the largest of which are usually in the attic.
Scan your roof monthly for deteriorating shingles and missing or broken flashing.
So why put an hvac system up in the attic at all.
Attic hvac systems save space.
An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be.
Well mainly it s a way to save space.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
Air leakage attic condensation fiberglass heat hvac insulation moisture mold ventilation wood moisture content abstract this project investigated the thermal and moisture performance of a low cost approach to sealing and insulating attics using glass fiber insulation.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
However there s a problem.
To slow heat transfer through a home builders install a layer of insulation on the floor of unconditioned attics.