During the revamping or remodeling of the roof, it is always a better idea to make way for these steel roof trusses. These trusses render a reliable and durable support to the rest of the roofing materials.
The trusses are the triangular segments of the roof that are located at the base of particular roofing. Earlier, the households preferred the lumber system on which the entire roof used to be established. Nowadays, the more reliable and dependable truss-systems are in place.
Three Types of Commerical Trusses:
There are two types of steel trusses that are commercially available in the market, the flat (parallel) trusses and the pitched (common) trusses. Depending on your need, you can select one of them.
To identify and locate the roof trusses, move down to the lowest layer of your roofing. A caged structure of roofing segments would be exposed to you. This foundation structure is known as the truss-system. It consists of chords (outer trusses) and webs (inner trusses). While the chords offer an aggregated support to the stacked layers of the roofing architecture, the webs stabilize the individual chords.
The steel trusses are quintessential in the overall integrity of the roof as they hold the sheathing and the roofing material together. A weaker truss-system would be unable to carry the weight of bulkier tiles and rubber roofs.
Sometimes, the homeowners wish to replace their flat roofs with the pitched roofs in order to provide an added attic space. This can be achieved by replacing the old flat trusses with the pitched ones. Keep supervision of an expert in tact while performing the task. He would also guide you on your next course of action.
Along with the advantages that the roof trusses offer, there are certain drawbacks associated with them as well. The inculcation of these roof trusses in your roofing framework leaves the homeowners with a much lesser attic space. Also, the space of a particular room of the home may reduce owing to these triangular roofing segments.
However, the cheap labor cost complements the preference of such roof trusses over the traditional lumber system.
Trusses can also be made of aluminum, steel, or other materials. A lot of factors determine the suitability of materials for building trusses and discussed below are the uses, advantages, and disadvantages of timber and steel trusses.
Often after the construction of the house, timber rafters, because they look so good are not covered up. So besides being really strong, they also have a very appealing appearance. Compared to other materials, timber rafters are stronger over wider distances because of their considerable thickness.
The problem with timber is that it is vulnerable to damage by termites. In a place where these pests are a common cause of property loss, it is best to go for steel rafters that termites cannot eat Using steel also means you will save money on pest control.
Another problem that timber faces are that it expands quite a bit in the presence of moisture and this can affect the way timber rafters settle into each other. Steel, on the other hand, is resistant to expansion and contraction due to moisture and it doesn’t have to settle like wood. Steel also cannot rot like wood in moist places.
Wildfires are also a great threat to wooden rafters as wood is neither fireproof like steel nor fire retardant. But the disadvantage with steel rafters is that they look rather ugly and need to be covered. Since they have so many other benefits, their cost is near 20% more than that of timber rafters. Wood is still the first choice for termite-free places with less humidity.