Thermal walls generally have a 110mm thick external structural concrete wall, selected polystyrene thickness and a 45mm internal timber pre-nail batten lining.
- Very fast construction
- Builder friendly
- Cavities for services
- Steel lintels not require
- same substrate with no joins
- Super insulation to any level
- The benefits of concrete
- Very cost effective
- Compatible with SF systems
Polystyrene thickness and R Value start from 45mm respectively for the thermal 200mm series and continue up to Thermal 400mm R (7.35 including air space) if so desired.
The Thermal 200mm is ideal for garages in any application and is compatible with all steadfast wall systems. The internal battened wall can be fixed to the external concrete wall by using SF connector rods that are cast in before the concrete pour.
Thermal 250 - 110mm concrete outside face plaster finish, 95mm polystyrene sandwiched, 45mm internal battens and selected linings:
R value = 4.36
Thermal 300 - 110mm concrete outside face plaster finish, 145mm polystyrene sandwiched, 45mm internal battens and selected linings:
R Value = 5.73
Thermal 400 - 110mm concrete outside face plaster finish, 245mm polystyrene sandwiched, 45mm internal battens and selected linings:
R Value = 7.35
Frequently asked questions
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.-see Cladding
How are electrical and plumbing installed?
These are installed as per standard timberframe. Wiring is installed pinned to the sides of the studs.
Does the closed air space in the thermal wall act as an insulator?
Yes it does. It gets a bit technical but this is how most insulations work, by trapping air and restricting its movement. This is the way double glazing works, however too little space between the panes of glass results in radiant heat loss between the panes (the inside surface of one pane cools the surface of the other pane) while too wide a gap results in convection current losses (air begins to circulate because of surface temperature differences and transfers heat between the panes). All surfaces within the thermal wall are of a similar temperature, therefore no convection currents and therefore, a good insulator.
This however is not the case for the Solar wall which acts more like double glazing.
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