If the snow on your roof is melting at an inconsistent rate to your neighbor s home you have some investigating to do.
Why does snow melt faster on some roofs.
What is the purpose.
Snow disappears quickly from roofs above attics with little or no insulation but will stay a long time when.
How the snow melts on your home s roof provides clues to attic insulation needs.
Your attic should be the same temperature as the outdoors.
The purpose of snow guards is to hold accumulated snow on the roof until it can slowly melt.
Another indication are the icicles on the gutters of a home following a very heavy snow fall.
Lets unpack some of the information regarding snow guards.
Where you see a fast melt or completely dry areas you are seeing very specific heat losses.
If not that would definately heat up the attic and melt the roof snow much faster than an neighbor with a furnace not in the.
It too kept snow on the roof longer than any other house around.
If a home is due to have the insulation replaced after years of neglect then the snow will melt easily due to the heat rising.
Likely there is a cold room or cold draft somewhere below solved by a portable heater or.
Lets say that you live in a area that receives 4 6 inches of snowfall regularly.
Do you have insulation over all the ducts leading out of the furnace and down into the house that are exposed in the attic.
The snow can build up on your roof throughout the winter until there is 12 or more.
I saw that in some of the condo buildings where i live.
A snow covered roof means your attic is doing its job.
You want the snow to melt by.
It seems that when the snow melts why does the snow on the roof melt here.
Why is snow melting quickly on my roof.
This represents moisture from snow melting closest to the shingles of the roof and merely leaking down.
Heat escaping an attic through the roof causes the heat plant boiler furnace or plug in portables to run double time.
The pipe exits the roof above the right side of the bathroom window as shown in the pics below.
Most of the houses in my neighborhood have this heat loss issue.
In vacant homes with the heat turned low the snow doesn t melt much either.
Ideally snow should melt according to the outside temperature not influenced by the temperature inside your home.
See pics the original stack was made of copper and only extended 6 inches off the roof.
When your attic is hot it means your home is losing heat through the roof causing the snow to melt off your roof more quickly than if you had adequate insulation.
It s normal for some melting around venting and fireplace exhausts but you shouldn t see any bare patches on your roof.
