FAO Builders/Roofers ( Not Chip or Shadrack Dingle tho! )
04-09-2009, 08:39 AM
#2
The biggest reason a flat roof fails is down to the sun drying out and cracking the covering, the other is interstatial condensation under the surface membrane.
The gravel acts as a barrier to the sun and also keeps the moisture content of the surface even so reducing the cold bridge that forms the condensation.
The gravel acts as a barrier to the sun and also keeps the moisture content of the surface even so reducing the cold bridge that forms the condensation.
04-09-2009, 08:42 AM
#3
............
Thread Starter
The biggest reason a flat roof fails is down to the sun drying out and cracking the covering, the other is interstatial condensation under the surface membrane.
The gravel acts as a barrier to the sun and also keeps the moisture content of the surface even so reducing the cold bridge that forms the condensation.
The gravel acts as a barrier to the sun and also keeps the moisture content of the surface even so reducing the cold bridge that forms the condensation.
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