RibRaft® HotEdge® Range
3000mm L x 25mm D
Firth’s RibRaft HotEdge® range of innovative foundation insulation solutions take another step forward in helping make warmer, drier, healthier homes easier to design and build.
HotEdge slab edge insulation product have been developed to improve the thermal performance of homes with RibRaft or RibRaft X-Pod concrete foundations using brick and/or non-brick cladding systems.
Slab edge insulation is the superior choice when it comes to making drier, healthier homes. Use HotEdge Base under slab perimeter insulation with HotEdge (BV) and HotEdge Extra for even better thermal performance.
The HotEdge range is included as part of Firth’s RibRaft Technical Manual (Oct 2024) CodeMark (CMNZ70056) to make designing and building easier.
HotEdge Extra also has a BRANZ test report (ST18050) for a 90mm framing bottom plate anchor solution that meets all NZS3604 load requirements (>15Kn) i.e. suitable for HandBrac. Tested with 20MPa RaftMix concrete, M10 155mm ECKO screw bolts (orange top) and 12mm packers.
Firth has undertaken independently tested to prove product performance and practical construction solutions to reduce design, consenting and build times for industry professionals.
Unique features of our systems are:
- Quality: RibRaft HotEdge and HotEdge Extra systems are independently verified.
- RibRaft CodeMark (CMNZ70056)
- HotEdge Extra BRANZ test report (ST18050)
- 3D thermal performance modelling
- Cost: HotEdge systems help achieve costs savings through:
- RibRaft Technical Manual CodeMark to reduce design and inspection time and costs
- Quicker to design and specify with free online design tools
- The pre-plastered surface helps reduce finishing time (no extra trades to site).
- Reduces build times with use of standardised construction techniques.
- Durability: uses superior materials with rigorous manufacturing processes
- Made from XPS, the boards are more resistant to moisture, retaining its R-value year after year.
- XPS more durable and less prone to handling damage than EPS i.e. less site wate and no “polystyrene snow”
- Easy installation: fits easily inside form work and with regularly space Tornado screws securely integrating HotEdge and HotEdge Extra to the concrete slab.
- Fully compatible with all Firth’s RibRaft systems including RibRaft TC3 and X-Pod.
Don’t settle for second best, get the Edge with Firth’s range of proven RibRaft foundation systems today!
For more information call 0800 HOTEDGE (468 3343)
Suitable for Foundations
Contact us to find the right product for your project
R-Value
The H1 (5th Ed.) updates to the Building Code use a new calculation method to set the minimum R-value requirements for each climate zone.
There are six Climate Zones (previously three) based on jurisdictional boundaries that take into consideration regional climatic data for more practical insulation levels.
The Firth HotEdge R-Value Calculator tool uses the prescribed methodology in H1 (5th Ed.) - Energy Efficiency of the NZ Building Code to calculate the R-value for your design using different Firth Flooring systems combinations of RibRaft (poly pods) RibRaft X-Pod with HotEdge (BV), HotEdge Extra and/or HotEdge Base. The tool also has allowances for underfloor heating and portions of perimeter being and unconditioned space. The selected solution can be saved as a pdf download, complete with generic installation detail, for use in the consent submission pack. The R-values calculated are applicable to all housing, and non-residential buildings up to 300sqm only.
The cloud based, WaffleSuite design software, for X-Pod foundations also has a Thermal calculation tab that helps you work out a slabs insulation solution/requirements.