Tips For Building Timber Roof Trusses
Roof trusses are beneficial to the structural design and stability of the building, so it is important to ensure that the best practices are applied during installation. There are different designs available in the industry to suit individual needs and preference. However, ultimately the choices you make for the construction will depend on the demands exerted by regional conditions, the aesthetics of the roof as well as the size and type of structure. If you want to use timber truss construction for your new building, use these tips to make certain that the outcome has structural integrity.
Timber Size vs. Roof Area
Timber roof trusses form the framework that will support the roof above the building. It is important for the construction to be resilient so that the lifespan of the building will be extended, and the risk of accidents will be mitigated. Use larger pieces of lumber for a roof that is going to cover a larger area. In essence, the size of the timber in roof trusses should be directly proportional to the area to be covered by the roof. This will ensure that the support is sufficient even during windy conditions.
Use of Connectors
The structure of the roof trusses is usually triangular due to the advanced stability of the configuration. Though there are variants, this is the most recommended type of timber truss. When connecting pieces of lumber together, you should not screw them in a way similar to regular rafter framing. The latter is structurally weak and prone to collapse when under climatic stresses. There are flat metal connectors that have been designed to join the timber for more sturdy results. Ensure that they are made out of first-rate material and are galvanised for extended durability.
Distribute the Weight
The framework of timber roof trusses is also designed to connect the space above the roof. It is therefore vital that perpendicular support is installed to distribute the weight of the roof evenly. When installing these supports, start from the center and then proceed outwards, while adding vertical supports which must angle away from the middle post. This will vary if the roof design is not in the traditional rectangular shape. Once the trusses are complete, install them at intervals and secure them with deck screws. It is also advisable to add braces during this process and remove them during sheathing.
There are also many manufacturers who produce quality prefabricated roof trusses which are favoured because building is labour-intensive and the prefabs are considerably cheap. For more information, contact a company like Calco Trusses & Timber.