Firth RibRaft® HotEdge®

Introducing Firth’s latest innovations to the RibRaft HotEdge® range of foundation solutions: HotEdge Extra® and HotEdge Base®.

Complimenting the current HotEdge system, used for brick veneer clad homes, HotEdge Extra is an integrated solution specifically developed for non-brick veneer cladding systems on RibRaft® (pod) or RibRaft X-Pod® foundations.

HotEdge Base® in conjunction with any other RibRaft product, provides under slab perimeter insulation to achieve even higher thermal performance by helping to close a buildings thermal envelope and reduce heat loss.

These fully integrated thermal solutions are designed and tested specifically with Firth foundation systems to assist in attaining Homestar™ points. Our R-values have been proved via 3D thermally modelling to help you achieve compliance with the H1, (5th Edition) updates.

  • Category
    Concrete Flooring
  • Range

Unique features of our systems are:

  • Durability: uses superior materials (XPS) with rigorous manufacturing processes
    • The high durability of the system means less site waste through handing damage.
    • The XPS boards are more resistant to moisture (compared to EPS), maintaining R-values.
  • Cost: Installing HotEdge systems is a cost-effective way of help to achieving H1 compliance.
    • Alternative to increasing wall thickness and insulation levels elsewhere in the design
    • The pre-plastered surface helps reduce fi­nishing time.
  • Easy installation: fits easily inside form work and uses Tornado screws fixings to securely integrate HotEdge and HotEdge Extra to the concrete slab
    • Fully compatible with all Firth’s RibRaft systems including RibRaft pods and X-Pod.
  • Quality: RibRaft HotEdge and HotEdge Extra system R-values have been proven through 3D thermally modelling.
    • Combine with HotEdge Base to achieve desired R-value.

Get the Edge with Firth’s full range of durable, seismic and thermally rated foundation systems.

Specs / Details

3000mm L x 25mm D

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Firth is one of New Zealand's best known and most trusted trade names in concrete. They have been developing, manufacturing and delivering concrete and concrete products to New Zealanders for almost a century. 

90 year proud history

The history of Firth is part of the history of New Zealand. Firth's capability extends through the construction industry, roading & infrastructure, industrial and commercial projects to residential builds.

Industry leading

All of our products are formulated to meet strict NZ standards. Our engineers ensure Firth customers consistently receive delivery of the highest quality product that they can rely on. Our concrete products are tried and trusted so customers can be sure what we make, makes the grade. Always.

Our national, dependable brands include: Firth Certified Concrete®, Firth Masonry, Firth RibRaft® floors, Dricon® bagged concretes, mortars and sands.

Innovation that endures

From day one innovation has been at our core, but not at the expense of long lasting durability. In 1925, the 'original' Firth family with their entrepreneurial spirit created innovative concrete products that made life easier.

Today's wider Firth family still carries that same can-do spirit into today's market challenges. Our designers work alongside our engineers to ensure new designs will stand up to the rigors of time.

Kiwi Made

Like the people who manufacture them, our concrete ranges are all products of New Zealand. We employ 650 people spread across 70 plant sites throughout the country.

Firth's strength lies in its regional relationships delivering a quality service locally to loyal customers, every day.