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,

InquiryBased Approaches to Learning Glencoe/Hill InquiryBased Approaches to Learning. Few things excite teachers more than when their students take over the role of grand inquisitor. When students begin formulating. Glencoe Teaching Today. Glencoe/Hill Differentiating Instruction in the Social Studies. Teachers today must find multiple ways to

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