Good attic ventilation helps keep temperatures even preventing hot and cold spots that cause damaging ice dams where water can back up and freeze beneath your shingles.
Attic cold in fall.
Proper precaution in an uninsulated attic such as the department of energy s recommended r30 to r49 insulation for warm climates r30 to r60 for moderate climates and r49 to r60 for cold climates.
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.
Attic flies common this winter by donald lewis department of entomology the large black pesky flies that show up in bed rooms and on window sills from late fall through early spring have been very abundant this year possibly because of the wetter than normal weather we had last summer.
According to the u s.
During cold winter months the attic vent fan is not necessary.
This could mean your shed garage basement and attic will be invaded by a number read full article.
Small attic vents located below the roof peaks provide sufficient ventilation to let the moisture created by heat rising into the.