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,

Calabash Wikipedia, the free encyclopedia The calabash or bottle gourd, Lagenaria siceraria synonym Lagenaria vulgaris Ser., also known as opo squash or long melon, is a vine grown for its fruit, which can. North Carolina Roofing Contractor, Roofer, Roof Repairs. North Carolina Roofing Contractor, The Roof

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