The minimum width for the Radiant Wall is 300 mm thick. It consists of 110mm external structural concrete wall, a minimum 125mm of polystyrene insulation and a 65 mm non structural internal concrete wall

- Fast construction
- Plaster finish on the inside wall or directly fixed plaster board
- Thermal mass
- No chasing required
- Most effective wall for the SF wall Hydronic radiant  heating and cooling systems
- Ideal for single storey dwellings
- Builder friendly
- Steel lintels not required
- Plaster finish over the same substrate with no joins
- Super insulation to any level
- All the benefits of concrete
- Very cost effective
- Compatible with Warm Floor system

Specifications

Radiant 300 - 110mm concrete, 125mm polystyrene sandwiched, 65mm concrete selected finish:
R Value = 3.46

Radiant 400 - 110mm concrete, 225mm polystyrene, 65mm concrete, selected finish:
R Value = 6.24

 Frequently asked questions

 How do I hang a picture?
The great thing about an internal concrete wall is that you can hang a picture or fit a shelf anywhere like and not have to find a stud. Most handy man drills have a concrete function, simply drill the hole, insert plastic toggle and fit screw.

What thickness is the insulation?
The minimum insulation is 125mm, but this can increase to any thickness.

How is the inside finished?
Steadfast has variety of plaster finish’s perfect for the Radiant wall, from glass smooth to sponge, alternatively direct fixed plaster board can be used.

How is the outside finished?
The outside of the Radiant wall is generally plastered and painted. There are a variety of textures, coats and colours to choice from. Due to concretes limit thermal expansion darker colours are possible.

How are electrical and plumbing installed?
These are installed before concrete placement. Wire is installed within PVC conduits, this not only protects the wire but allow additional room for any future electrical needs.

How important is thermal mass?
How do you explain to someone what chocolate taste like if they have never tasted it. Thermal mass is fantastic, it keeps you cool in the summer and warm in the winter, saves a fortune on energy bills and the air just feels better, fresh and more natural. Once you’ve tasted it you will never live in anything else again.