Roof

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

Beware of Snow Buildup On Open Roof Areas 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’, …

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1 Hour Fire Rating For Roof vs Wall

Many ask if there’s a difference between a 1 hour fire rating on a wall product vs a 1 hour fire rating on a roof product. If you think about it, fire (AKA heat) does behave differently as it rises vs. spreads. In fact, there is a difference: In the Florida Building Code (2020), & …

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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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Typical Information Needed For Engineering Design of a Patio-Pergola Roof

Here’s a chart illustrating some of the many dimensions and components needed to design a site specific open patio / pergola / carport / louvered roof type structure. It’s best if you start with an existing Master Plan from one of our manufacturer partners. Mark those up & create your sketches using the information from …

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