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,

Snow Roof S now Roof Products are your first line of defense against tough weatherproofing problems. From primers to patches to durable roof coatings, Snow Roof products can. Research US EPA Scientific research is the foundation for the Agency’s policies, actions, and decisions. City of Leawood

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