Repeat the process after every snowfall to keep the roof clear of ice dams.
Snow buildup on metal roof.
Ask a friend or family member to hold the ladder on the ground to make sure it s stable.
Metal roofs leak under these circumstances.
To use the rake pull the snow toward the edge of your roof.
These occur when snow or ice on the roof melts and then refreezes at the roof s lower edge.
Homeowners of asphalt roofs are vulnerable to ice dams.
At the low end that might be on the order of 10 20 pounds per square foot psf.
This avalanche effect is why most homeowners should consider installing snow guards on their metal roof.
Purchase a long handled aluminum roof rake preferably with wheels or a non stick graphite blade.
Some metal building manufacturers will not warranty a roof with a 1 4 inch slope.
Purchase snow guards from your local hardware or home improvement store.
Others allow a 1 4 inch slope.
Have a professional install the snow guards if you re worried about damaging your metal roof.
At these slopes snow creeps rather than slides and is easy to manage.
Snow and ice buildup can slide off a metal roof causing a dangerous avalanche effect.
If you push the snow across the roof you could end up damaging the shingles.
Roof slopes lower than 4 12 tend to perform well with metal roofs which are less prone to leakage and ice dam formation.
However on the high end it could be over 40 pounds per square foot.