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,

Murray Franklyn Family of Companies Seattle Real. Murray Franklyn Family of Companies Seattle Metropolitan Area Homebuilders Since 1966. Since 1966, premium quality new homes in the Seattle area have been our specialty. Murray Waugh Thistleton Architects Constructed from crosslaminated timber panels from the first floor upwards,

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