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,

SME Inc of Seattle Residential Commercial. SME Inc of Seattle has been the commercial, industrial, and residential electrical contractor of choice for Western Washington since 1972. JTM Construction JTM Construction JTM Construction is a Seattlebased general contractor building the future in the Pacific Northwest. Through integrity,

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