The dams are caused by heat coming up from the home and melting the snow.
How to stop ice dams on metal roof.
To prevent snow from cascading off of a metal roof snow stops or snow guards must by used.
Run special ice dam prevention products adhesive ice and water barrier from 3 to 6 ft.
Best the best way to prevent ice dams is to eliminate the source entirely.
This keeps the cable hidden and prevents damage and it will heat up the whole area allowing the water to slide right off.
Sealing air leaks between the warm building interior and the attic or ceiling is imperative to prevent increased sheathing temperatures that can lead to ice dams.
Up the roof from the edge the next time you reroof fig.
If your roof leaks every winter it s likely that an air leak is to blame.
And some sections of the roof may be impossible to keep cold.
How can ice dams be prevented.
3 while it is difficult to see there is a hardware store style heat tape embedded in the icicle seen hanging from the valley area.
That s when you have to call on secondary strategies and ice dam prevention products to prevent ice dam damage.
Heating cables can be installed at the eaves of your roof and turned on during and after a snowstorm to help melt the snow at the edges of your roof which should help you stop the ice dams.
To prevent ice dams follow these four steps.
It combines the ease of the de icing cable and the effectiveness of a metal roof.