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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,
Author ant96533 Last modified by giw91085 Created Date 7/10/2014 14817 PM Other titles All Contractors Contractors by Trade Company Virginia IT Infrastructure.
A very important element that must be considered when the roof is projected, is ventilation, allowing drainage of excess dampness from under the roofing.
Tornado History Virginia Department of Emergency. Virginia Tornadoes. A tornado is a column of rapidly rotating wind that extends from a thunderstorm cloud to the ground. It often appears as a funnel shaped cloud or.