How Cold Does An Attic Get

If your attic is too cold it probably lacks sufficient protection from outside temperatures.

How cold does an attic get. Hang pencil and paper next to the thermometer and record the outdoor and attic. In the summer the attic bears the brunt of the sun s rays and any heat from below rises to the attic. Hang an outdoor thermometer in your attic making sure its range reaches at least 130 degrees fahrenheit. The natural air flow created by a properly vented attic will move hot air out of the home.

It works together with the attic insulation which will ensure hot air does not enter the attic from outside. Complete coverage of the attic floor along with sealing air leaks will ensure you get the best performance from your insulation. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Quelch the heat wave.

Attic ventilation is vital to the upkeep of your home so make sure it is installed and functioning correctly. Cold outdoor temperatures especially below freezing can wear on your furnace. In the winter drafts from vents and poor insulation result in chilly or ice cold temperatures. R49 works well in cold climates particularly areas where it s common for businesses and schools to be shut down due to extremely cold temperatures the recommended level for most attics is to insulate to r38 or about 10 to 14 inches depending on the insulation type according to energy star.

Intake vents located at the lowest part of the roof under the eaves allow cool. Department of energy doe the average unimproved attic has just r 19 insulation the insulation value of a five and a half inch thick fiberglass batt. Hot summer weather poses the opposite problem for maintaining recommended attic temperatures. Rafter vents ensure the soffit vents are clear and there is a channel for outside air to move into the attic at the soffits and out through the gable or ridge vent.