![]() The composite load-bearing nature of SIPs can free up more space than other build systems. Timber-frame walls supporting SIP panels on the roof will retain heat efficiently while also giving you the option for loft conversions. This can help manage costs and deliver impressive thermal performance without compromising on creative design features. The good news is that SIPs and timber frames can be hybridised. Buildings constructed using SIP systems can readily achieve levels of airtightness significantly beyond those required by the Building Regulations. Where SIPs are slotted together, joining splines can often be used and these significantly reduce thermal bridging when compared to a solid timber post. The precise cutting processes employed during the fabrication process means that when larger scale construction elements are joined together onsite, the finished construction is more accurate. SIPs are prefabricated in a controlled factory environment. SIPs support loads by their very nature as composite structural panels, and the external boards are bonded to the insulation they sandwich to prevent buckling. ![]() Adding suitable liners can get this number down to as low as 0.09 W/m²K. As their name suggests, SIPs come pre-insulated to such high standards that, even without additional insulated liners, they can achieve U-values as low as 0.18 W/m²K. Structural insulated panels are ideal for self builders wanting to create high-performing, energy-efficient homes. Though both options are timber-based, there are a lot of differences between them. Both structural insulated panels and timber frames have these increasingly sought-after qualities, and can achieve fairly similar levels of construction speed and thermal performance. Modern building has seen a move away from brick and blockwork as the market identifies building methods that are quicker, safer, more sustainable, and easier to make energy efficient.
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