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,

Nancy H. Sliwa Broker of Coldwell Banker Previews... Contact Information Nancy H. SliwaBroker Relocation and Short sale Specialist member of Coldwell Banker Presidential te Coldwell Banker Previews AGC of America Constructor etplace The AGC of America Constructor etplace is a purchasing directory for the construction industry.

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