How To Unfreeze An Outside Air Vent Roof

The water would then run back down and drip out of the exhaust fan onto your head.

How to unfreeze an outside air vent roof.

Clear your roof of snow on a regular basis. Terminating these pipes above the roof ensures any vapours that potentially come up through the drains from the sewer will harmlessly be released outside rather than penetrate our indoor air. A gurgling toilet may indicate a clogged or frozen vent stack. The pipe in the attic is already insulated now it was time to do something on the exterior as well.

Over time these vents can become squeaky from moisture and age related natural degradation. Turbine vents are those ubiquitous devices found on almost every residential rooftop. If this happens pour warm water down the roof s sewer vent stack. The hot moist air would travel up the vent hose towards the roof and condense in the cold attic.

Excessive snow on the roof can block the vent s stack and cause freezing. There may be a clog in the sewer line right where it meets the vent pipe. But now the roof vent was frozen and could not supply the air needed to eliminate the vacuum in the sump. To provide both of these functions terminating the drain vent high up above the roof is necessary.

As we know from basic physics nature abhors a vacuum so the air supply for the vacuum in the sump had to come from somewhere else. Under normal operation the air to relieve that vacuum would come from air flowing down through the roof vent. Designed to maintain steady ventilation to attics these devices are necessary to prevent mold and excessive heat buildup under the roof. Then the vent pipe may be re angled and a new cap may be put into place to keep debris from clogging it again.

I also used to climb up on the roof and thaw the vent with hot water. And when the need arises. There was no access to the attic until i had the wood stove installed. Now i loop a 2 ft pipe heating cable about 8 10 inches into the vent and tape the rest of it to the outside of the vent i do this in late fall before it gets cold and icy on the roof.

Here is the update video on this pipe https www youtub. Plus in the cord on ground level for a few hours.