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,

List of United States tornadoes from April to May... This is a list of all tornadoes that were confirmed by local offices of the National Weather Service in the United States in April and May 2015. yette Dr, Mount Laurel, Recently Sold yette Dr, Mount

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