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,

The Home Depot AlpenaAlpena, Installation Services. Indoors or out, you can rely on The Home Depot s toprated, professional installation and repair services. With licensed and insured local. Member Directory Alpena Business Chamber of Commerce Chisholm Street Alpena, 989.354.4181 phone 989.356.3999 Michigan Roof Cleaning — 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.