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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,
Question About Flat Roof Joist Spans Building. You can t just pick a joist size in your caseand assume this will be OK unless you know the required loading on your roof. The live load component eg snow. Guardrail Systems for Residential Roofs Roofing Contractor Guardian
A very important element that must be considered when the roof is projected, is ventilation, allowing drainage of excess dampness from under the roofing.
Flat Tile Mount QMFTM Solar Panel Mounting Systems Sources American Wood Council, NDS aluminum roofing Landis 2005, Table 11.2 A, 11.3.2 A NotesThread must be embedded in a rafter or other structural roof member. INSTALLING A SLATE ROOF — THE BASICS INSTALLING A SLATE ROOF — THE BASICS Adapted and excerpted from the commercial roofing Central-Square Slate Roof Bible Written for the Timberframers Quarterly By ph Jenkins Is this okay to do to roof trusses? Self Help Forums I have seen diy truss systems copied from an original many times in the industry. I have also called for an engineer letter accepting the responsibility of this on.