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,

Building Construction Renovation. A Structural Renovation permit is required for an owner or contractor of a property to renovate an existing building. Structural renovations, such as changes to a. Building Construction Change of Use Permit. A Change of Use permit is required for a

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