According to the epa the recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type watch this video from the department of energy to learn how to estimate your attic s r value with a ruler.
How tight the attic is.
So why put an hvac system up in the attic at all.
How to adjust the springs on attic stairs.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
It is important to note the optimal conditions for an attic installation is when the attic is fully insulated making it a conditioned space.
Earlier this year i got a question about a home that had spray foam insulation in the attic.
You must have a tight seal between your living space and your attic to get an energy efficiency boost.
This is the noise you ll hear.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
The trick to the installation of a gas furnace in an attic space is routing the condensate drain from the attic down through the core of the house to the basement.
Attic hatch or door.
Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.
Attic hvac systems save space.
A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents.
Scraping scrambling bumping thumping and sometimes squeaking.
Well mainly it s a way to save space.
There is one major caveat to the effectiveness of an attic fan.
Affix rigid foam insulation to the attic side of the hatch or door.
Pull down stair or ladder.
The figure known as the r value measures insulation s ability to resist heat flow.
Otherwise the air circulation created in your attic could suck a significant share of your air conditioned air up and out of your house through cracks and gaps in your ceiling.
If you have mice living in your attic it is likely that they are traveling down through your wall voids to access areas of your home that have food or water sources.
Intake vents located at the lowest part of the roof under the eaves allow cool.
The springs connect to power arms at the upper end of the stairs and keep the door.
Nothing unusual about that.
Energy star puts the amount of insulation recommended in a typical roswell home at r 38 for an attic.
This works out to about 10 to 14 inches of insulation.