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,

White & Case LLP Madrid Our People. Lawyers Careers. Awards and Rankings. White & Case Ranked First Again in Diversity Among Large US Law Firms. White & Case Named Most Innovative US Law. Madrid City Guide Time Out Madrid Your ultimate guide to Madrid Discover Madrid

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