Wind uplift is a primary concern when installing a retrofit single-ply roof system (RSPRS) over a structural metal panel roof. ASTM E 1592 physical testing was performed on three test roof assemblies in order to determine the wind uplift resistance of an RSPRS installed over existing structural metal panel roof systems fastened directly into purlins. This paper presents the findings and conclusions of that analysis.Read the full paper Physical Testing for Wind Resistance of Retrofit Single-Ply Roof Systems Over Structural Metal Panel Roof Systems.View more white papers from GAF on our Architect & Specifier Education Resource Page.
09-15-2020
As social distancing eases up little by little around the country, it's time to think about getting back to work. For some contractors, that means tackling the long list of jobs that were delayed while social distancing was in effect.
09-11-2020
Metal roofs are generally known for their low maintenance, aesthetic appeal, and a finish that protects them from sun and water damage. However, after many years, that finish may fade or deteriorate. Then the building owner must decide whether to restore or replace their roof.While there are some situations when replacement is necessary, metal roof restoration may be more accessible than many people think. And restoring your customers' metal roofs instead of replacing them could lower their overall costs while saving time and labor expenses for you.
09-11-2020
Is thermal mass a lost art form after centuries of use in temperate regions?In building design, the thermal mass of a building enables it to store heat, providing "inertia" against temperature fluctuations. It reduces the impact of external daily temperature swings on internal heating and cooling requirements. This thermal inertia has been an on-off again topic of discussion for some time. Proponents of adding thermal inertia point to Mediterranean area buildings constructed with thick stone walls and ceramic tile floors etc. Such buildings have kept occupants cooler than lighter weight buildings in many temperate areas of the world for centuries. In the quest to improve the energy efficiency of buildings, further gains are becoming increasingly harder to come by.
09-10-2020
