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,

County from the US Census Bureau People County Oklahoma; Population,estimate 33,050 3,878,051 Population,estimate 33,110 3,853,118 Population,April... Oklahoma from the US Census Bureau Oklahoma County Map.. Pages are available for the following cities and towns in Oklahoma Chiefs Choctaw Nation Hudson 1862. Little is

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