Why Does My Attic Get Humid At Night

An attic that stays overly humid for days or weeks on end can eventually lead to leaks.

Why does my attic get humid at night.

If the problem is the result of water or moisture penetrating the foundation or floor slab there are many remedial actions which may help. If you seal up the leaks on lower floors you may do without the humidifier and stay comfortable. Now the humidity will likely read close to 100 if it hits 100 and tries to exceed that fog will form. A moist attic means moist insulation and moist insulation is less effective.

Condensation accumulates and leads to structural problems such as dry rot and deterioration in wooden beams. The roof has 3 passive vents on the back of the house and the roofer added ridge vents. These can include installation of seamless gutters and downspouts. You d need a minimum of 9 16 x8 soffit vents or 54 of continuous soffit vent or 54 vented drip edge.

Now at night when things cool off the cooling air can will reach its saturation point. That s just the properties of moist air. You need minimum 27 of ridge vent with equal intake ventilation. You are approaching the 43 deg dew point and some colder surfaces like windows you will get condensation there.

The best solution for controlling moisture is at its source. It s easy to check and clean if necessary. Building scientists have recently discovered that in the typical home well over half the incoming air first passes through the attached garage crawl space basement or attic where air becomes polluted by a number of different sources. A couple of years ago had a new roof put on.

As a result your home does not cool down sufficiently and on top of that it feels humid. A hot attic is bad for several reasons. I put in soffit vents all around. The cobra vent can become clogged but it s not likley.

High temperatures inside your attic shorten the life span of shingles. The issue in the attic is that at 48 degrees f. Outside air moves into the attic leaves its moisture behind amd moves on. Hi everyone i m a newbie here.

Looks like a great site. The humidity will be low as the temperatures warm up. You have a 860 sq ft attic. Seen some posts about this subject and i have a similar issue with high humidity in my attic that is driving me crazy.

Since the air cannot come in direct contact with the cold coils the cooling and dehumidification of air are compromised.