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,

"I want a service to install roof heat cables to prevent. Expect to pay between $350 and $600 for a company to drive out to your home and remove the ice dams from an average sized house. Typically an ice dam removal service Code St. sbury,

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