All steadfast solar walls have an internal structural wall and an external 45mm x 70mm pre-nail wall, sandwich between these two walls is rigid insulation.   

- High thermal mass

- Ideal for dwellings with upper levels

- Massive insulation 

- Plaster finish on the inside wall or direct fixed

- Steel lintels not required

- Any cladding type

- All the benefits of concrete

- Cost effective

- Can be Compatible with SF floor systems

 Specifications

The pre-nail can be fixed back to the concrete wall with Steadfast fiberglass rods where required. This allows the designer to apply virtually any external cladding from brick, to stone, to weatherboard and monocladding.

Solar 250 – cladding, 45mm pre-nail batten, 95m polystyrene, 110mm concrete, with selected linings:
R Value = 2.63

Solar 300 – cladding, 45mm pre-nail batten, 145m polystyrene, 110mm concrete, with selected linings
R Value = 4.02 

Solar 400 – cladding, 45mm pre-nail batten, 245m polystyrene, 110mm concrete, with selected linings
R Value = 6.78

Note- Due to the fact the Solar wall has effective thermal mass,    the R Value requirement is only R-1 (compared to R-2 for timber frame equivalent). The Solar 300 is 400% more efficient.

Frequently asked questions

Why is the Solar wall so cost effective?
The solar wall is cost effective due to the fact it does not require two separate concrete walls to have both effective thermal mass and a substrate to fit the desired cladding too. The Solar walls provides high insulation, a structural and effective thermal mass concrete wall, with any selected cladding without requiring an additional concrete wall, thus cost savings are made on materials and labour.

 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 95mm, but this can increase to any thickness.

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

How is the outside finished?
Virtually any external cladding can be fitted to the outside of the Solar wall. From brick, to stone, from weatherboard to monocladding.

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.