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.
Visual heat attic.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Attic hvac systems save space.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
So why put an hvac system up in the attic at all.
Well mainly it s a way to save space.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Scan your roof monthly for deteriorating shingles and missing or broken flashing.
To slow heat transfer through a home builders install a layer of insulation on the floor of unconditioned attics.
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.
An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be.
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.
Visual inspection can go a long way to heading off these problems.