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,

City of Yucaipa See Yucaipa, Explore Yucaipa, Enjoy Yucaipa! Public Infrastructure Projects. The City of Yucaipa is hitting the ground running with the construction of many public infrastructure improvement projects in 2015. News Mirror Your Community. Your Newspaper. YHS students are honored at Awards Recognition Night

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