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,

Kirkland Roofing Company, Kirkland Roof Installation, WA Pro Roofing Kirkland roofing company offering quality new roof installation in Kirkland, WA & surrounding Seattle cities. Free Estimate 19 Roofing Oklahoma City Majestic Roofing Contractors Oklahoma Majestic Roofing are GAF certified roofing contractors with 50+ years combined experience

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