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,

Killdeer, Life History, All About Birds Cornell Lab of. Learn how to identify Killdeer, its life history, cool facts, sounds and calls, and watch videos. A shorebird you can see without going to the beach, Killdeer are. Killdeer Audubon Field Guide Widespread, common, and conspicuous, the

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