Roof

snow buildup on trellis example

Snow Build-Over On Pergolas, Trellises & Mechanically Louvered Roofs (Cornice)

Beware of Snow Buildup On Open Roofs An important and frequently overlooked requirement for checking snow loads on open roof systems such as pergolas, trellises, and mechanically louvered roofs is the snow ‘buildover’ effect.  This occurs when the snow accumulates on open patio roof components to the point where it builds ‘up and over’, touching the …

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Wind Speed to Wind Pressure For Sunrooms – Canopies – Pergolas Using ASCE 7-16

ASCE 7-16 is introduced into the 2018 International Building Code and 7th Edition Florida Building Code (2020) as the new referenced standard for wind design. This standard introduced an enhanced section for the conversion of wind velocities to roof wind pressures for roof components attached to buildings and freestanding structures such as sunrooms, overhead canopies, …

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What is the Minimum Roof Slope for Metal Panels and other Roof Types?

The minimum roof slope requirement for metal panels varies depending on panel connection conditions.  The required roof slope varies with application of materials and use. See the below Florida Building Code 7th Edition (2020) sections below to determine which slope is appropriate based on your specific design scenario.   Definition METAL ROOF PANEL. An interlocking …

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