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,

Perth Roof Ventilation Skylights Whirlybirds Roof Vents Perth Roof Ventilation Perth Daylighting Skylights and Roof Ventilation. Get your free quote today. Perth Skylights Tubular Skylights Roof Ventilation. Perth Skylights Solatube Skylights Local Premier Dealer, World s #1 selling skylight since 1992. Australian Design Award. Get 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.