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,

GCX63 Earth s Roof Mount Everest Peak Earthcache in. Mount Everest. Mount Everest – also called Qomolangma Peak – is the world s highest mountain above sea level at 8,848 metres 29,029 ft. Part of the Himalaya. Artists Show Off Work At Artists Of The Plains

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