Is RibRaft insulated?
Is RibRaft insulated?
The Firth RibRaft® system is one of NZ’s most popular solutions for residential and light commercial flooring. This innovative method of concrete floor construction is quick and efficient to lay – and it offers excellent insulation benefits.
What is the R value of a rib raft floor?
R 1.3 m²
All RibRaft® floors are acceptable under the Code which assumes a minimum of R 1.3 m² ºC/W.
What is RibRaft?
RibRaft® Twenty years ago Firth created RibRaft® – New Zealand’s first pod floor system. This innovative method of concrete floor construction sits ‘on’ the ground not ‘in’ the ground making it seismically strong. The system uses polystyrene pods, steel reinforcing rods, plastic spacers and RaftMix concrete.
How do you insulate a concrete floor NZ?
Insulate under a concrete slab-on-ground by placing a continuous layer of 50 mm minimum, S grade expanded polystyrene (EPS) board over the damp-proof membrane before the slab is poured. However, unless a thermal break or perimeter insulation is used, this will only raise the R-value by around R0. 2.
What is slab edge insulation?
Slab edge insulation keeps heat in or out of a house, depending on the climate and the season. A slab can be insulated with rigid foam, mineral wool, or other rigid insulation rated for below grade use. The above-grade insulation needs to be protected from UV radiation and impact damage.
What is sand blinding?
In construction, ‘blinding’ typically refers to a base layer of weak concrete or sand that is laid above a layer of hardcore to provide a clean, level and dry working surface. The concrete used for blinding is weak compared with structural concrete, and can withstand lower loading.
What is compacted Hardfill?
Hardfill Compacted medium-sized aggregate, used to support the concrete slab or foundation. Levelling sand A layer of medium-grade sand placed over the hardfill and compacted down to provide a firm base to support the concrete slab.
What is a TC2 foundation?
A site classified as Technical Category 2 (TC2) means that minor to moderate land damage from liquefaction is possible in future significant earthquakes. A Firth Ribraft foundation can be engineered to withstand the temporary loss of support and differential settlement during and after an earthquake event.
Is it worth insulating under concrete floor?
Using insulation below the slab helps maintain steady internal temperatures in the building by bringing the ground bearing concrete slab into the insulated envelope of the building making use of the concrete thermal mass.
How thick should slab insulation be?
The Thickness of Concrete Floor Insulation The key is that you’ll want your insulation to be at least two inches thick unless it’s an insulation type with a high rating.
Why choose ribraft for your foundation?
Not only does Ribraft offer just that, but it does so whilst providing increased strength and superior insulation. Introducing XPod, the revolutionary sustainable foundation system. 20 years ago, Firth engineered Ribraff floors in New Zealand. Jump forward to today and Ribraft has become the most popular foundations in the country.
What is the R-value of ribraft® hotedge® insulation?
The insulation of HotEdge® has been 3D-modeled by BRANZ and shown to provide minimum R1.0 to the edge beam of Firth RibRaft® floors. Joint research is currently underway by Firth and BRANZ and full data on RibRaft® HotEdge® R-value calculation will be published in the near future.
What is ribraft flooring?
The Firth RibRaft® system has now become one of NZ’s most popular solutions for residential and light commercial flooring. This innovative method of concrete floor construction sits ‘on’ the ground not ‘in’ the ground making it seismically strong. The system uses polystyrene pods, steel reinforcing rods, plastic spacers and RaftMix concrete.
What is Firth ribraft®?
Twenty years ago Firth created RibRaft® – New Zealand’s first pod floor system. The Firth RibRaft® system has now become one of NZ’s most popular solutions for residential and light commercial flooring. This innovative method of concrete floor construction sits ‘on’ the ground not ‘in’ the ground making it seismically strong.
