A1 Roofing Maidstone

As a homeowner in Kent, building a lean-to roof for your shed or extension can be a great way to add some extra space and protection from the elements. However, cutting the rafters correctly is crucial to ensure a sturdy and safe roof. In this guide, we will walk you through the steps to cut rafters for a lean-to roof, using standard UK measurements in centimetres and inches.

To calculate the length of the rafter, you need to consider the width of the roof and the desired overhang. A typical lean-to roof has a width of around 2.4 metres (240 cm or 94.5 inches). For a standard shed roof, you may want to add an overhang of around 30 cm (12 inches) on either side.
Using a calculator or a roofing app, calculate the length of the rafter, taking into account the pitch of the roof (usually around 20-30 degrees). For a simple lean-to roof, you can use a rough estimate of 1:1.5 (1 metre of horizontal run to 1.5 metres of rafter length).

Using a saw, cut the rafters to the calculated length. Make sure to cut the rafters at a 90-degree angle to the ridge beam. For a standard lean-to roof, you will need two rafters per section, spaced evenly apart (usually around 400-600 mm or 15.7-23.6 inches).

Assemble the rafters and ridge beam to form the roof frame. Use a square to ensure the corners are square and the frame is level. Use screws or nails to secure the rafters to the ridge beam and the wall plate.

Once the frame is complete, add the roofing felt and tiles. Make sure to follow the manufacturer's instructions for the specific type of roofing material you are using.

• Always use a level and a square to ensure the frame is level and square.
• Use a saw with a guide or a mitre saw to make precise cuts.
• Cut the rafters slightly longer than needed, to allow for trimming to fit.
• Consider using a roofing calculator or app to ensure accurate calculations.
• Always follow safety guidelines when working with power tools and building at heights.

Cutting rafters for a lean-to roof in Kent requires careful planning and attention to detail. By following these steps and using the right tools and materials, you can create a sturdy and safe roof for your shed or extension. If you are unsure or uncomfortable with the process, consider consulting a professional roofing contractor, such as DK Roofing & Building Limited, who can provide expert advice and services.
For all your roofing needs in Kent, contact us at 01622 962144. Our team of experienced roofers can help you with lean-to roof construction, repairs, and maintenance.