Saturday, January 11, 2014

Roofs: metal or asphalt

Snow is very deep on all the roofs.  With the rain, the weight is increasing on roofs.
      Metal roofs behave quite differently than shingles for a roof.  Snow does not adhere well to metal and with a bit of warmth, a large avalanche of snow can completely clear snow from the roof.  This is dangerous if a person is near this fall of ice and snow.  Also, a deck attached to a building can be completely detached with the heavy weight. 
      Shingles tend to hold onto the snow and the snow and water can remain on the roof for a long time.  Hopefully the roof strength holds until the snow starts to be removed with warmth and rain.
     

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