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Roof, covering of the top of a building, serving to protect against rain, snow, sunlight, wind, and extremes of temperature. Roofs have been constructed in a wide variety of forms—flat, pitched, vaulted, domed, or in combinations—as dictated by technic
Used in shed type roofs and lean to roofs, it is in effect half of a normal truss with a vertical member to complete the triangle.; Hammer Beam Short horizontal beams built into and braced off the walls to help create larger open spans than would otherwise be possible with the means ...
1.The random wind pressure field of a pitched roof is predicted in terms of the proper orthogonal decomposition (POD) technique.应用本征正交分解(POD)技术对双坡屋盖的随机风压场进行了预测。 2.The wind tunnel tests of several typical large roofs,including a pitched roof,domes and a cylinder,were...
The saltbox is an asymmetrical gable roof where one side is much longer than the other. This style was invented in New England during the colonial period. Settlers there had homes with typical gable roofs, but it became popular to add an addition to the first floor of the home and extend...
Porch roofs in the Pacific Northwest commonly have a low pitch to shed rain well and keeping entry ways dry. Of utmost importance in the Northwest is to have a leak-proof roof. Of course, we would all say that no matter where we live. In the Southwestern United States, porch roofs ar...
Sides may be either flat or curved to create a custom design Makes it easy to add open or closed dormers Ideal for adding a garret or attic living quarters Disadvantages: The roof’s low pitch makes it difficult to shed snowfall Mansard roofs often contain many ornamental details, making th...
Roofs of this type were often constructed with a load bearing ridge beam Sara Cattaneo - Strengthening of historical buildings 8 Coupled rafters lean on each other at the top and obviate the need for a load bearing ridge. At the bottom however, the axial thrust down the rafters tends to ...