Low Slope Roof Design

They include the following.

Low slope roof design.

However ponding water is often observed in these low slope roofs. When design professionals specify framing members to minimum building code parameters alone it is possible for the constructed roof to have in service low slope issues related to ponding or drainage of the system. Specifically the code text typically reads roofs shall have a design slope of not less than one fourth unit vertical in 12 units horizontal 2 percent slope for drainage the stated and intended purpose of the code specified 1 4 in 12 slope is to provide drainage. The three main components of a low slope roof are the structural deck the thermal insulation and the membrane.

Five common design blunders that contribute to low slope issues and potential solutions are summarized below. If the upper edge of a low slope shed roof intersects a vertical wall the most logical approach in my opinion is to detail the roof as an unvented roof. It is out of these categories that other designs such as low pitched gable roofs or low slope metal roofs are derived. Low slope metal roofs have been a preferred roof covering for commercial institutional and industrial buildings for years because of their ability to protect against the elements to allow water to drain away from the roof surface and to keep building contents and occupants dry and comfortable.