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.
North light roof truss design.
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.
This is one of the oldest and economical methods for covering large buildings.
That triangle has a foot a gently sloping long side and a very steep short side.
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North light trusses are traditionally used for short spans in industrial workshop type buildings.
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.
This happens because it s cheaper to add a truss that has a wide larger set of lattice girders that include support trusses.
For long spans and where more head room is required the crescent truss is adopted.
North light roof truss can cover up to 30 meters wide building.
The steep side usually faces north or north east.
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 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.
In this type the steep sides of the trusses will be glazed.
This roof consists of a series of trusses fixed to girders.
3 the north light design you see this type of steel roof truss in the shape of a triangle.
One of the oldest and economical methods of covering large areas is the north light and lattice girder.
If your home is more than 15 meters wide this truss can be used for you.
North light roof truss.