Snow Melting On Roof Above Bathroom

How the snow melts on your home s roof provides clues to attic insulation needs.

Snow melting on roof above bathroom.

It might be blocked. It seems that when the snow melts why does the snow on the roof melt here. See pics the original stack was made of copper and only extended 6 inches off the roof. Another part of your dripping problem may be the way the vent pipe is routed.

However i suspect that your snowmelt problems may be deeper than just an omitted roof vent especially because you said that melting occurs even when the fan is not operating. Paint the out side to prevent water damage from the melting snow and make sure it fits snugly. Sometimes when it s raining and even when it was below freezing snow outside we ve had water dripping inside a bedroom window. Causing plaster around window to bubble and creating bubbles and cracks in the paint in the ceiling below.

The warm moist air from the bathroom may be condensing in the cold vent pipe. With the snow that roof is probably too dangerous to walk on so i m sure you did not look down the vent with a flashlight. Has the snow melted yet. Exposed shingles or metal can easily be heated to 70 f 40 c above ambient air temperature and cause melting of the snow immediately next to the exposed roofing.

It might not be. It could take a while for the warm moisture in the vent to melt the snow above it. Definitely coming in from above as we can see the water dripping from the top of the. Ice and snow accumulating on your roof or inside your gutters can cause costly water damage to your home or business.

That one just above the lower roof looks especially susceptible to it. If it has then the black flies have arrived. Snow catchers at the base of metal roofs hold back sliding snow near the eaves. Water will run down the roof and can freeze at the eave which is cooled from the underside figure 5.

Most of the houses in my neighborhood have this heat loss issue. The pipe exits the roof above the right side of the bathroom window as shown in the pics below. Roof vents are also subject to blockage in heavy snow and they have been known to drip condensation back into bathrooms. It s a slight dormer window in a sloped mansard second story roof.

Snow disappears quickly from roofs above attics with little or no insulation but will stay a long time when.