There are many options available for building a roof. In this article, we want to explain the basics of roof development. Whether you want to be aware of what your home builder is doing or you want to try a DIY project, we can help.
Steve Allen Construction of Ocala, Fla. wants to help you learn more about the stages of roof development. We have been servicing the central Fla. area for over 35 years and would like to offer our experience and insight to you. Read further to learn more.
One of the first stages of roof development is fixing the wall plate. This is the wooden beam that is situated to the top of each wall. The purpose of this piece is to allow easy fixing of the timber at the wall interface. Modern enhancements to these plates include metal straps that tie them to the walls.
After you fix any wall plates, you will place the loft floor / ceiling joists. These pieces are nailed into the wall plates at each end and can also be nailed together when they meet on the central spine wall. This will create a working platform for the roof assembly and can help resist the forces applied by the rafters that, when under load, would normally be spread to the supporting walls.
The next piece of wood to prepare is the ridge beam. This will serve as a joining place for all of the rafters at the top of the roof. Roofs that include large windows on one side might require this piece to be stronger or substituted for a steel joist. For symmetrical roofs, weight is distributed more evenly.
Once you have prepared the ridge beam, the first pattern rafter can be cut. This will need to be precisely cut and measured so that the correct angles and position of the birdsmouth joint can be cut. Once you have created the pattern, all rafters can be cut from this template. An end pair of rafters can be fixed in place at the base first, and then one end of the ridge can be inserted between and tacked into place.
The last step is to install purlins before any significant load is applied on the rafters. The purlins support the rafters at the mid span, or at the one-third or two-third spans if used as a pair. The purlins are fixed to gable end walls when available and rest on small projections of corbelled brickwork. If there are no gable ends, struts can be used to prop the purlin and transfer some of the load to either the spine wall or loft floor.
There are a lot of steps to building a roof and it is very important to make sure you have created the stability and support your home needs. Take your time and plan ahead for every step.
Steve Allen Construction of Ocala, Fla. has as been servicing the central Florida area for over 35 years. If you are planning a roofing project, contact us with any questions or to receive a quote. We’d be happy to help you with your roof development. Want to share your current project? Join us on our social media channels.
— Steve Allen Inc. (@SteveAllenOcala) December 19, 2014