Even on a metal roof keeping valleys eaves and gutters clear can only be achieved by keeping the refreeze from occurring by keeping the melt liquefied and allowing it to get off the roof and then too the ground.
Steel roof dam.
A ventilated roof will prevent ice dams ice dam myth 3.
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While this isn t a cheap solution it does offer long term benefits.
Metal edging along roof eaves prevents ice dams and roof damage ice dam myth 4.
Heat cable ul listed to prevent ice dams.
Ice dam myth 1 you need to heat the roof several feet up from the edge ice dam myth 2.
By installing a metal roof that has a special coating designed to shed snow and ice causing it to fall off the roof before it has a chance to form into an ice dam you can completely eliminate ice dam formations on your roof in the first place.
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Metal roof solve all of your ice dam problems with a new metal roof.
This is called ice belt metal panels.
Another option to consider is a metal roof.
Metal roofs can shed snow more quickly and that can be helpful.
There are products out on the market that can prevent ice dams and keep them from forming.
First choose from four different steel panels.
The objective of a snowmelt system is to ensure the water is drained off and not allowed to freeze at the roof edge forming a dam.
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Ice belt metal panels are typically short 3 4 and wide 2 5 3 and are made of thin gauge aluminum.
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If you do not want to install an entire new metal roof you can put metal only where it is really needed to prevent ice dams along the eaves.
Keep the roof cavity open and the rib will help protect the cable.
Metal roofs are susceptible to damaging snow slides we recommend a single pass up the rib and cross the same rib to return to the gutter section below.
Unique heat tape cable systems for the roof valley and the roof flashing on metal roofs.
Metal tiles or shingle are an option along with the continuous standing seam panels.
I would see whether anything can be done to increase insulation on the ceilings in your home and ventilation between the insulation and the roof deck.
However especially in cases of heavy snow and continued cold temperatures with no sunlight ice dams can still occur on metal roofs.