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,

Geologist Says Feds Made “Incredible Error” Ignoring Huge. Fromto 1984, Teppco stored LPG in the well 30avern, without reported incident — although the 400,000ton roof collapse did occur during that period. Bayshore Realty Oregon Coast Real Estate Homes For Sale. Welcome to our beautiful, thriving community

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