Among the early promoters of conditioned attics was joe lstiburek a principal of the building science corporation.
Conditioned attic systems.
Most of the heat generated in your home is coming from the roof and the attic adding heat gain to the upper levels.
This is very difficult for the system and the upper levels of most air conditioned homes experience unsatisfactory cooling.
Creating a conditioned attic without a hvac unit in the attic.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
Lstiburek s enthusiasm was rooted in his desire to bring attic ductwork inside a home s thermal envelope.
Building america research has demonstrated unvented conditioned attics can substantially improve energy performance while allowing home builders.
The condenser in your air conditioner works hard to get rid of heat and pressurize refrigerant for the return trip through your house.
Well mainly it s a way to save space.
These connect by a refrigerant line and a.
An edited version of this insight first appeared in the ashrae journal.
Housing industry has been to locate hvac systems in unconditioned attics but this is highly inefficient.
The system consists of two types of units.
Seems to me the only reason to create a conditioned attic is to bring the hvac system and ductwork into the thermal envelope of the home.
Attic hvac systems save space.
The right terms should have been conditioned attics and conditioned roofs.
Unvented conditioned attics the preference for a large segment of the u s.
So why put an hvac system up in the attic at all.
For builders who locate hvac equipment in the attic space the propink high performance conditioned attic system is the affordable way to optimize home comfort durability and value per square foot.
One outdoor condenser and the air delivering indoor units which you have at least one of or maybe four.
A lot of the blame for that goes to me and for that i am sorry.
Unvented conditioned attics were quite rare before the 1980s.
A fundamental requirement of an unvented attic assembly is the use of air impermeable insulation on the underside of the unvented roof to prevent air infiltration and exclude airborne moisture from the attic.
Most people desire cool homes for sleeping and bedrooms are often located on the upper levels.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Hpca is a below roof deck engineered insulating system that dramatically lowers attic temperatures brings ducts into conditioned space and.
