Quote:
Originally Posted by Lakegeezer
Sorry I can't give recommendations, but as long as the topic is open - perhaps we can discuss techniques. Is it OK to clear only the first few feet of the roof, or will dams still form where the snow stops? My rake can't reach the upper story roof beyond a foot or so. I can't imagine anyone getting up there to shovel anyway, because the pitch is steep.
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Shoveling the eave line up the roof 4 or 5 feet will just move the ice dam up your roof.
Ice dams form when melted snow and ice come in contact with the cold air. On newer roofs this can actually cause serious problems as most roofs are installed with Ice and Water shield starting at the eave up 6 feet (2 coarses of roll) then it goes to either 15lb felt or Tri-flex. Having the ice dam form above the ice and water shield will more than likely cause some leaking.
For my roof, I have metal and most of the snow slides off when the sun comes out and the temp gets to about 15 degrees, but I have one spot over the vent pipe and fan vent penetrations that the snow will not slide off. I stand up an extension ladder against the roof and pull down as much snow as possible. Being metal, you cannot walk on it when it has snow, you will come down in a hurry.