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,

LockDeck Laminated Decking ets and distributes LockDeck laminated decking for engineered roof systems across the country. Timber Frame Package Timberpeg Timber Frame Timber. 1. Eastern white pine or Douglas fir timber frame* 2.t&g decking for the decking/ceiling finish. 3. Drywall B.O. 4. 61/2" Structural Insulated Panel

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