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,

All Star Gutter, LLC Cinnaminsin, All Star Gutter, LLC prescreened Gutter Contractors in Cinnaminsin, NJ. Gutter Clutter Buster TM Cyberbooth #489 at Invention. Gutter Clutter Buster TM Video Clip [Refresh or reload page to play video again.] Disclaimer This video is for demonstration purposes

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