Your attic insulation that s what.
Will insulating attic keep house cooler.
If you ve got a two story house and you re used to upstairs rooms always being hotter than downstairs rooms it s not necessarily because the heat inside your home is rising to the upper floor.
Having insulation in your attic can help you save up to 20 in heating and cooling costs.
And having insulation in your attic keeps the area at a consistent temperature.
An attic without insulation will allow hot air to enter your home.
This reduces the air conditioning cost by keeping the attic a cooler space during the summer which means less heat in your house and less need to keep the ac running all the time.
Keep your blinds closed.
In cooler weather the air you are paying hard earned money to heat might get trapped in your attic instead of getting circulated back into your house to keep you and your family comfortable.
In other words closing the blinds essentially prevents your home from becoming a miniature greenhouse which is.
In that case what they really need is a whole house fan not a powered attic ventilator.
It also helps homes stay cool in the summer.
As simple as this tip may seem family handyman notes that up to 30 percent of unwanted heat comes from your windows and utilizing shades curtains and the like can save you up to 7 percent on bills and lower indoor temperatures by up to 20 degrees.
In summer it helps stabilize your house s indoor temps to keep cooling needs in check.
There are a lot of other considerations to save energy and keep cool.
As with new homes those without air conditioning shouldn t need to worry about keeping the attic cooler.
The department of energy estimates that a properly insulated attic can shave 10 to 50 percent off your heating bill.
Radiant barriers this is a type of insulation that is installed in the attic of a house or attached to the rafters of the roof.
You want high quality insulation in your attic as it will ensure that the cool air from your air conditioner can t escape your home.
And they d still want to have the ceiling air sealed and fully insulated to minimize heat transfer from the attic to the house.
Heat rises which means it ends up in the attic.
Air leaks unprotected windows and ventilation are also important factors.
Just as insulation keeps heat in during winter it helps keep it out during summer.
It basically seeks out cool zones to fill so if that zone is lower than the source of the heat the warmer air will travel down into that cooler area.
Refrigerators and freezers for example need ample insulation and tight seals to keep food cold.
And it works the opposite way for warm climates.
Even the cooler you take on a camping trip couldn t do its job if it wasn t made out of insulating materials.