Flat Roof Residential Roof Truss Design

Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board.

Flat roof residential roof truss design. From there the flat roof system you choose will determine the materials you apply. Flat the most economical flat truss for a roof is provided when the depth of the truss in inches is approximately equal to 7 of the span in inches. Hip roofs are more stable than gable roofs and more resistant to strong winds and hurricane. Photo gallery video gallery residential steel trim selector post frame trim selector projects.

They are used in construction of roofs of fairly large objects such as shopping malls logistical parks and warehouses. These structures generally have a flat roof structure because they are already at a high height. Residential roof trusses as shown in figure a are an engineered configuration of wood members placed to hold the weight of the roof s finishing materials the internal structure s ceiling and any snow load that may occur. A pitch truss with a truncated or flat apex so that it can support more load.

Shop roof trusses spacer floor truss. Ultimately a flat roof should play a part in a total architectural composition and has the ability to enhance the aesthetic and practical outcomes of a home. The truss is a framework consisting of rafters posts and struts which supports your roof. Flat roof truss design is used in intermediate flat structures because its spans are not of a much higher range.

A hip set is then used to frame the 6 or 8 feet nearest the end wall. A flat roof truss is also known simply as a flat truss and is not completely flat but rather slightly sloped in order to allow water to run off of the roof. The flat portion is increased the nearer the truss is to the end wall. If you want to build a flat roof then you will need to build a flat roof truss.

Most economical when the difference in slope between the top and bottom chords is at least 3 12 or the bottom chord pitch is no more than half the top chord pitch. Overview building design truss design retaining wall design tall wall design requests. The information herein is written as an informative guide to residential wood roof truss construction and to provide an understanding of the basic design criteria of wood trusses. In this design each side of the building has a roof pitch and eave.

Flat roofs come in many shapes and sizes which include parapet roofs roof decks and green roofs to name just a few of the options available.