Thermacell blocks are built up from footings.

Floor joists are mounted within the Thermacell blocks & the blocks filled with concrete to floor level.

We recommend the use of 25mpa. Concrete for allwalls.

They can be hand filled in stages or pumped up to 2.5mts. high in one application.

Pumping the 250mm blocks requires a dryer mix as concrete when too wet can cause possible blowouts. Filling the 125mm blocks requires a wetter mix because of the narrower openings in these blocks.

A line pump with a 50mm hose outlet is best for pumping; slow and steady is needed for successful pumping.

The positioning of Steel reinforcement should to be as per the Thermacell Residential Engineering Design Manual.

Usually the steel required for a Thermacell house is one Y12 reinforcing bar on either side of each window and doorway on the external walls. AY12 bar is set in the walls above the windows to create a lintel.

For windows wider than 2 metres, a Y16 bar may be used. For very wide windows or openings, additional engineering may be required at your expense. AY12 bar is usually placed continuously around the top course of external walls, which creates a bond beam.

Plumbing and Electrical Cables are fitted into the polystyrene on the inside of the walls after the walls are roof are completed.

The polystyrene is easily grooved back to the concrete core and the plumbing pipes and fittings can be fitted and fixed back to the wall prior to the plaster sheeting being installed.

The door frame is secured to wooden retaining blocks as follows:

This can be easily done with Thermacell as follows:

Plaster sheeting is adhered to the Thermacell wall by using ordinary ‘stud adhesive’.
The adhesive is daubed in several places on the wall, the plaster sheet is then pressed against the wall.
Standard plasterers nails which come in various sizes, can be used to nail the sheeting into the concrete core of the wall. These hold the plaster sheet in place until the adhesive sets.
Plastering the Thermacell walls is quite simple and never gives any trouble.

It is essential to use a good quality acrylic render, which incorporates an acrylic-coated fibreglass mesh, that delivers high impact strength.

The render should consist of; one layer of render or skimcoat with the fibreglass mesh trowelled into it followed by a second coat of render, the texture coating is applied next and this can be trowelled or sprayed on followed by an 'armourcoat' which is applied with a roller.

All of these coatings should finish up approximately 5mm thick.