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,

Prairie du Chien School District Prairie du Chien High School Learn More. Prairie du Chien High School offers a wide variety of curriculum for the college and career bound student. ClassifiedsNow Currentlyads online. Welcome to ClassifiedsNow, your "OneStopShop" for classifieds! The ClassifiedsNow Network is comprised of

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