North Light Roof Truss Design

That triangle has a foot a gently sloping long side and a very steep short side.

North light roof truss design.

For long spans and where more head room is required the crescent truss is adopted. This happens because it s cheaper to add a truss that has a wide larger set of lattice girders that include support trusses. This roof consists of a series of trusses fixed to girders. In order to light up the space satisfactorily roof lighting has to replace or supplement side lighting provision must also be made for ventilation form the roof.

North light roof truss when the floor span exceeds 15m it is generally more economical to change from a simple truss arrangement to one employing wide span which support trusses at right angles. Because of the steel pitch of the north facing slope the space inside the roof trusses of a north light roof is considerably greater than that of a symmetrical pitch roof of the same span. If your home is more than 15 meters wide this truss can be used for you. North light roof truss the north light roof truss is suitable for the larger spans that go over 20m and get up to 30m.

This is one of the oldest and economical methods for covering large buildings. North light truss has a asymmetrical profile with a south facing slope at 17 or more to horizontal and the north facing slope at from 60 to vertical. North light roof truss. The steep side usually faces north or north east.

The short vertical side of the truss is glazed so that when the roof is used in the northern hemisphere the glazed portion faces north for the best light. One of the oldest and economical methods of covering large areas is the north light and lattice girder. They allow maximum benefit to be gained from natural lighting by the use of glazing on the steeper pitch which generally faces north or north east to reduce solar gain. The glazed panels are usually faced towards north to avoid the direct glare of the sun and are hence called north light roof trusses.

North light trusses are traditionally used for short spans in industrial workshop type buildings. North light roof truss can cover up to 30 meters wide building.