BUILDING ENVELOPE
produce timber frame on site. Therefore, no independent checks will be made when it comes to build quality or adherence to design drawings. Finally, sustainability is an area where
environmentally aware self-builders are increasingly looking to make improvements. Because manufacturing in a factory can be scheduled to start as the site is being prepared, processes can run in parallel, helping to reduce waste onsite and movement of vehicles. This can also create less disruption to your new neighbours, or businesses that may be close to your construction site.
MAXIMISING SPACE
When it comes to planning your self- build, maximising space is another key consideration. Have you ever thought about using your roof to create an extra bedroom, home office, or den? Attic, or room-in-roof, trusses, which include a lower chord to provide a floor platform, are becoming more popular. Depending on span and room size, attic trusses can span onto external load- bearing walls without additional support, giving you more flexibility in the roof and lower floor layouts. The bottom chord of the truss, which becomes the floor joist of the room, can be designed and manufactured in several
ways. Metal web joists, for example, offer a strong but lightweight option with the added benefit of allowing services, including mechanical ventilation and heat recovery systems, to be easily installed. Room-in-roof trusses are becoming
increasingly popular as they are an economical solution to adding rooms to your new home. They also expand living space without the need to change the footprint of your entire property and can increase its value by £15,000 to £20,000. Other benefits include the elimination of complex labour-intensive site work, reduced build cost per square metre due to full utilisation of space, and complete roof structure provided ready for floor
Not only are OSM techniques more sustainable due to waste reduction, but they have been found to minimise
inefficiencies and eradicate delays on site
boarding, roof finishes and plasterboard. The roof will be one of the most visible and important features of your new home. It therefore needs careful consideration at the planning stage.
Chris Powell is part of Pasquil and the Saint-Gobain offsite solutions design director
selfbuilder +homemaker
Now on Instagram
FOLLOW US AT: @SELFBUILDERHOMEMAKER
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www.sbhonline.co.uk nov/dec 2021
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