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,

Geology, Geoscience and Earth Science Departments. Oil & Related Companies Subsea Oil Production Links The subsea oil industry internet portal. Subsea equipment and company database. Industry news. TUCP Query Results Texas Department of... Search Results Company Name,Work District=,County= Select company name on the left for more

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