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,

Ford Dearborn Truck Plant « Xero Flor America Ford Dearborn Truck Plant Dearborn, MI Size 454,000 sqft Completed Roof System XF301+L. Largest Extensive Green Roof in North America at 10.4 acres Industrial Services Inc. Industrial Services was incorporated in 1987. As a specialty contractor, our expertise

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