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,

HGICHobby Greenhouses Extension Clemson. Hobby Greenhouses. Prepared by Nancy Doubrava, HGIC Information Specialist, and Bob Polomski, Extension Consumer Horticulturist, Clemson University. Custom Dock Systems is a leading designer and fabricator. Custom Dock Systems is a leading designer and fabricator of Boat Docks, Boat Lifts, Aluminum Docks,

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