The main factor that may weaken the stability of the roof structure is dampness. On its negative impact it is particularly exposed rafter framing, which deform under impact of water. Therefore is important roof protection against getting in  water into its internal structure.

Typically, investors during the construction of the roof attach great importance both for building materials, as well as careful execution. Unfortunately, later very often they forget about the survey, and any minor defects  commission outsource cheaper and often non-professional roofing companies. This is a big mistake,

NewsLeading source for breaking news & developing stories. is your leading source for breaking news, developing stories, local weather, Oklahoma sports and live streaming video. 9/16/2013 9917093825011.64. 10/25/2013 25020. 3/11/2013 25020. 6/11/2013 25029.55. 8/26/2013 25031.8 The United States Geological Survey State Water Resources. General Information. Under

A very important element that must be considered when the roof is projected, is ventilation, allowing drainage of excess dampness from under the roofing.