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SIPS Explained

Dec 20, 2012
SIPS Explained

Structural Insulated Panels (SIPS) are an advanced method of construction offering excellent thermal performance, light-weight structural strength and time and cost saving benefits over traditional construction methods or systems. SIP panels are used in floors, walls and roofs for residential, commercial and educational applications, providing ecologically friendly and energy efficient buildings.


SIP Major Benefits:

Excellent Thermal Performance:

SPT MAG-SIP  Structural Insulated Panels provide superior thermal performance, which will last the life span of the building. This is due to the solid core of polyurethane (PUR) insulation throughout the structure which ensures that the building is heated evenly, remains free from cold spots and will benefit from reduced heating costs.


Low U-value walls and roof:

SPT MAG-SIP Structural Insulated Panels offer extremely high thermal performance, the Polyurethane (PUR) core of rigid insulation and MGO  achieves U-Values as low as 0.14 Watts per Meter Squared Kelvin (W/m²K) or better, making significant savings on your annual heating costs.

 Integral Insulation:

The insulation is integral to the SPT MAG-SIP  Building System, and therefore eliminates the need and cost for insulation.

 Habitable Roof Space:

SPT  MAG-SIP  SIP Building Systems do not require roof trusses, therefore providing an additional habitable room in the roof.

 Extra Floor Space:

SPT  MAG-SIP  Structural Insulated Panels create more internal floor space for the same external dimensions in comparison to masonry construction. This is because a SIP structure provides excellent strength and insulation in a smaller wall width.

 Environmental Sustainability:

A SPT  MAG-SIP  home is environmentally friendly for several reasons. SPT MAG-SIP  Structural Insulated Panels are not made from timber and do not contribute to forest depletion.  The polyurethane (PUR) core of insulation in the SPT  MAG-SIP  Structural Insulated Panels is CFC/HCFC-free with zero Ozone Depletion Potential and has a Low Global Warming Potential (GWP). STP  MAG-SIP structural insulated panels are also very thermally efficient saving on heating/cooling costs and reducing the carbon footprint.

 Low Wastage:

SPT  MAG-SIP  Structural Insulated Panels are pre-engineered in a factory environment which results in less defects and wastage throughout the manufacturing and construction processes.

 Fast Construction Method:

By using SPT  MAG-SIP Structural Insulated Panels, on-site construction time is dramatically reduced. The assembly of the building structure is typically measured in days rather than weeks or months.

 Improved Scheduling:

External and internal follow on trades can start work sooner as the SPT  MAG-SIP Building System offers a weather-tight shell helping you complete your project faster.  With a SPT  MAG- SIP Building System it is easier to predict project completion times as the system is relatively simple to erect and requires no wet trades or brick layers.

 Flexibility in Design:

Using specialist in-house 3D CAD software, SPT MAG-SIP  Structural Insulated Panels can be designed to accommodate a wide variety of building applications.

 Robust and Solid Feel:

A SPT  MAG-SIP home delivers a robust and solid feel compared to timber frame systems. This is achieved due to its solid core construction.


The poor air-tight qualities of other systems is a major cause of heat loss. In contrast, a SPT  MAG-SIP home provides a controllable indoor environment due to the superior air tight characteristics of the system.

 Limited Cold Bridging:

SPT  MAG-SIP  Structural Insulated Panels are joined together with a SPT proprietary insulated connection system providing a continuous polyurethane (PUR) core through the walls and roof of the building. This greatly improves the thermal efficiency of the building compared to timber frame and cavity insulation which is prone to slumping and mortar drops during the construction process. Additionally, the SPT connection system provides significant thermal performance over other SIP panel systems.

Solid Panels Provide a Rigid Surface For Fixings:

No additional reinforcement is required to hang radiators and kitchen units.