The main issue with SIPs is when they're exposed to moisture, and therefore there are some sites that don't suit a SIPs build. Are There any Disadvantages to Structural Insulated Panels? Part of the construction phase is completed in a safe, dry factory, which has a huge impact on fabrication and build times. This illustration from Kingspan offers an idea of how structural insulated panels may be fitted together to build a home. This can transform the top floor from a standard 2.4m floor-to-ceiling height, up to a double height of 3.6m. This, along with the inherent airtightness of oriented strand boards (OSB) and a rigid insulation core, helps to limit air leakage in the building, making SIPs a great fit for Passivhaus projects.Īs the roof panels are structural there is no need for traditional roof trusses - the panels can easily span 4.8m from eaves to ridge and sit on a boxed-in steel beam or a feature glulam timber beam. This dramatically reduces repeated cold-bridging in the building.įactory-made SIPs panels will be more accurate than on-site cut timber frames, and this helps to limit gaps in construction. Therefore the amount of poorly performing timber in the wall is halved. In a timber frame building these are at 600mm centres, while in a SIPs wall they are at 1200mm centres. One of the key benefits over traditional timber frame or modern closed timber frame systems is the spacing of the vertical timber studs within the walls. What are the Advantages of Building with Structural Insulated Panels? The same type of structural insulated panel is used for building the external walls, any internal loadbearing walls and the roof panels. The panels are then cut to size, timber edge pieces added and any openings formed.
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