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,

Electrical Contractors, Electrician Chicago . Expert electricians, electrical contractors, energy solutions and communications technologies in Chicago, Naperville, Oak Brook, Schaumburg, Downers Grove. Radon Mitigation Radon Contractors Inc. Radon Mitigation Specialists! See Our Special Offer!! Radon Contractors, Inc, provides mitigation services primarily in the Northeastern Illinois counties

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