Photo gallery of our latest installation of Cavity Wall Insulation with Polystyrene Products. Thermaboards is the leading supplier in SA.

Thermaboards (PTY) Ltd is a national supplier of Extruded Polystyrene (XPS) and Expanded Polystyrene (EPS) rigid boards are used for thermal insulation. It is produced from general purpose polystyrene by the process of extrusion or expansion. These sheets have a closed-cell structure and virtually no air-voids in between the cells.
We supply all our XPS and EPS rigid boards, ceiling insulation products and insulating blankets nationwide.
Extruded Polystyrene is a closed cell polystyrene rigid foam board, with high compressive strength and excellent long-term thermal resistance performance
Polystyrene blocks are used in construction as permanent insulation in buildings. The blocks are energy efficient and ensure optimal insulation not only for walls of buildings, but also the roofs and even floors.
Our cornices are manufactured from the best high density XPS (Extruded Polystyrene) and are sold in 2m lengths. We have a range of 17 different Cornice Profiles available to choose from.
Even if the foundation wall is insulated vertically under the slab, significant heat is still lost from the slab edge that is closest to the cold outside air.
Expanded Polystyrene (EPS) insulation is effective in reducing the thermal transmittance (U-Value) of the walls of new and existing buildings.
Polystyrene blocks are used in construction as permanent insulation in buildings. The blocks are energy efficient and ensure optimal insulation.
Knauf Insulation Ceiling Rolls (Combi-cut and un-cut) are Glass Mineral Wool rolls, designed for use in cold lofts where pitched roofs are insulated at ceiling level.
Knauf Ceiling Roll Multi Pack provides the flexibility and convenience of 2 rolls in 1 by providing the option to install at either a 100mm depth or a 50mm depth.
ISOTHERM Thermal Insulation is suitable for roofs, walls and geyser insulation. It offers a range of benefits including a reduction of electricity costs and the fact that it is safe and easy to install.
Sisalation®, when used in conjunction with an airspace, is a highly effective thermal insulating membrane due to the high reflectivity and low emissive properties of the aluminium foil surfaces.
Spunsulation Radiant Barriers are a range of products manufactured for all sectors of the construction industry that require reflective insulation foils for roofing, walling and insulation applications.
Photo gallery of our latest installation of Cavity Wall Insulation with Polystyrene Products. Thermaboards is the leading supplier in SA.
Photo gallery of our latest installation of Under Slab Insulation with EPS Products. Thermaboards is the leading supplier of EPS in SA.
Photo gallery of our latest installation of decking blocks in a building.
How To Install A Nail-up Ceiling. Video courtesy of IsoBoard South Africa.