Slab Edge Insulation (SEI)
The slab edge of a foundation can be responsible for approximately 80% of the slab’s total heat loss, with further research showing that thermal resistance does not significantly improve by fully extending the insulation under the slab or by increasing the thickness of the insulation under the slab. The reason being that, with no insulation on the perimeter foundations, most of the heat is conducted along the slab and out through the exterior face of the footing. This suggests that insulating slab edges is far more effective for preventing heat loss than insulating the underside of the slab.
Extruded Polystyrene (XPS) is considered the best material for insulating the slab edge. XPS is resistant to moisture and has a higher compressive strength, making it a good option for foundations that may be subjected to high loads or in areas with high moisture levels.
- CategoryWall Insulation
- RangeInsulation
Designed to be installed onto an existing concrete foundation, Accumen Shapes can manufacture a wide range of SEI retrofit solutions to meet the requirements of your project, so contact us now to discuss your requirements!
Ask for Accumen SEI Boards, the ultimate SEI solution!
Accumen Shapes are the New Zealand distributors for Foamex XPS. Foamex XPS is produced without the use of toxic, ozone depleting substances, making it the best environmentally friendly solution for any project.
Accumen Shapes uses Foamex XPS to manufacture robust pre-plastered SEI boards for the ultimate SEI solution. Accumen Shapes uses patented manufacturing technology to apply the KickIt® plaster to Foamex XPS boards.
Accumen Shapes have been manufacturing and supplying the New Zealand building industry with our robust KickIt® pre-plastered shapes and mouldings for over 30 years!
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About the
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Accumen Shapes Limited is a proudly New Zealand-owned and operated business specializing in the manufacture of both traditional and contemporary lightweight exterior decorative mouldings.
Our products are designed to transform your existing or planned project into a unique architectural dream without requiring any major structural redesign.
In addition to decorative mouldings, Accumen Shapes also manufactures a wide range of insulation products for both commercial and industrial sectors.
Accumen custom-manufactures a diverse array of lightweight exterior mouldings, including columns, architraves, cornices, window sills, fence caps, quoins, false vents and shutters, arches, dado lines, parapet mouldings, and chimney surrounds.
Furthermore, we produce bBOLD signage, unique shapes, film sets, and theatre props.
Accumen Shapes operates New Zealand’s only locally based manufacturing facility for pre-formed fibreglass pipe sections.
Our capabilities extend to producing Our manufacturing capabilities encompass a diverse array of insulation materials, including FoamGlas (Cellular Glass Insulation), Ravatherm, Foamular XPS shapes and sheets & PUR, PIR, and Phenolic shapes and sheets. We also produce Rockwool pipe sections, along with Siliner and Ductliner boards.
Additionally, we house New Zealand’s only fully automated laminating operation, capable of laminating foils, cloth, and rigid insulation foams to insulation blankets and boards.
In 1991, Accumen was founded in Otahuhu, Auckland, New Zealand. Since then, we have evolved into the present company, Accumen Shapes Limited, specializing in the production of KickIt® High-Quality Lightweight decorative shapes and mouldings, alongside a wide range of Commercial and Industrial insulation products.
- ArchiPro Member since2015
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