Truss Rafter Roofs And Loft ConversionsIt is a common miss-conception that truss rafter roofs are not suitable for loft conversions. In fact, there is no reason whatsoever why houses built this way cannot be converted into that new loft conversion you have always wanted. Generally speaking, properties built since the mid 1960s will use truss rafters though very modern houses may have steel trusses. Take a peek in your loft and if you see that the roof timbers form into a ‘W’ shape, then your property has a trussed roof. Other things to look for are a very shallow pitch to the sides of the roof and metal plates connecting the timbers. The illustration below should give you a further idea of what to look for.
OK. I’ve got a trussed roof. Now what? Well. Don’t let it worry you. It simply means that your loft conversion will have to take into account the lower pitch of the roof. In most cases this kind of loft conversion will require planning permission because the conversion will need to raise the original roofline of the property. Because of the design of the truss frames any loft conversion will require a structural modification so, if you have this kind of roof, it is essential that professional structural engineers are consulted. The lack of headroom in the existing roof space will be a further reason to alter the structure of the roof. Raising the roofline to ensure adequate headroom in order to comply with the building regulations will be one of the first tasks undertaken during the loft conversion. And, because of the load bearing demands on a truss rafter, the roof trusses will need to be replaced with steel girders. This sounds highly complicated and, to a degree, converting a trussed roofed property is technically more demanding that working on an older property with a steeply pitched roof. But. Most specialist builders and loft conversion companies are fully experienced in this kind of work and, a truss rafter loft conversion, is probably just as common as any other type of conversion. So. Nothing to worry about then? Absolutely. Having a home with a trussed roof design should in no way stop you from planning and building a successful loft conversion. But do use specialist builders and architects to draw-up your plans to ensure that the structural modifications are carried out correctly and safely. Related Articles Or Click here to return to the home page
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