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,

Mills Machine Company, Inc. Earth Drilling Products. Mills Machine Company dedicated to manufacturing quality earth drilling products worldwide for any type of drilling and is known for its innovative. ee city from the US Census Bureau Business ee Kansas; Total number of firms, 6,601 237,040 Blackowned

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