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,

Street & Sidewalk Repair Welcome to the City of Gardena The City of Gardena Public Works Department maintains, and repairs sidewalks, curbs, and gutters along City of Gardena roads. These rightsofway are the joint. Public Works Welcome to the City of Gardena ENGINEERING Survey and prepare

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