Buildings more than 300m2 - Flooring Suppliers

Firth’s proven RibRaft HotEdge®

Firth’s proven RibRaft HotEdge® slab insulation solutions have options for all cladding types to help build warmer, drier, healthier homes for New Zealanders.

• HotEdge (BV) for brick veneer cladding.
• HotEdge Extra for non-brick veneer cladding.
• HotEdge Base for under slab perimeter insulation.

Concrete Slab Edge Insulation

With Firth HotEdge® or HotEdge Extra®, you are not only helping to create warmer, drier, healthier homes, you’re also allowing for design freedom elsewhere in the build with HotEdge helping to meet (or exceed) H1 requirements.

HotEdge systems help to close a building’s thermal envelope, creating a healthier home by removing thermal bridging cold spots where the slab and timber framing meet.

HotEdge Extra provides peace-of-mind with a BRANZ-tested installation solution (ST18050) for anchoring 90mm timber framing base plates to the slab (see Firth website for details).

Concrete Slab Base Insulation

Add HotEdge Base® for cost-effective under-slab perimeter insulation that gives improved thermal performance right where it’s needed the most.

Part of a proven system

The HotEdge system is quick and easy to use, with a pre-plastered finish on the XPS boards, easy-to-fit Tornado screws and powder-coated aluminium corners – all designed to reduce installation time and costs. Each board has two standard heights, with custom board heights available up to 1000mm.

HotEdge is a fully integrated thermal solutions that has been tested with all Firth RibRaft foundation systems and RaftMix concrete to ensure your slab meets or exceeds H1 compliance no matter where in the country you’re building.

Next level support

Questions? Firth has free technical support with foundation systems specialists ready to provide the information and take-off advice when you need it most.

To further support designers, architects and engineers, our digital tools have been made free to use for New Zealand industry professionals.

Firth’s easy-to-use HotEdge® R-value Calculator performs basic R-value calculations, using Firth products, and has the bonus of a downloadable PDF with the selected solution for use with the building consent submission pack. Find the HotEdge® R-value Calculator here: firth.co.nz/r-value-calc

Wafflesuite^TM is a cloud-based software for making very fast and accurate design calculations for complex soil types in three dimensions. Register for Wafflesuite^TM here: nz.wafflesuite.com/register