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,

18 in. xft. Roll Roof Detail Membrane The Home Depot Roll Roof Detail Membrane from is designed specifically to seal and protect leak prone areas on your roof. Optimal choice for rake and drip edges. Membrane roofing Wikipedia, the free encyclopedia Membrane roofing is a

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