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 Permits Issued City of Troy, MI Permit Applicant Location Work Description; PA204 Date Issued 05/08/2015 DEBEAUCLARD, ANTOINEHENDRIE ROYAL OAK, W SOUTH BOULEVARD Waste Reduction Guide SOCRRA Ammunition s Gold Medal R. Hazel MondayThursday 1000 am 600 pm Friday 1000 am 700 pm Detroit Window

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