Solarcap was born from the idea that the roof cap structure of any house could be utilised to store and heat water. To achieve this, we have re-engineered the existing roof ridge-cap component into the Solarcap. Solarcap is essentially a closed ridge-cap that can store and heat water. The water is heated by direct solar heat absorption. Additional heat is also applied to the Solarcap tanks due to the heating of the entire roof surface where an internal convection effect is generated. This forces heated air to rise within the roof toward the roof apex.


Solarcap is a highly efficient solar water heating system that is not only more robust than its competitors, but also aesthetically pleasing. It takes only one 2,8-meter length of Solarcap to efficiently heat enough water to supply a standard 100 liter geyser, but increased capacity can be achieved by chaining any amount of Solarcap tanks together.


The Solarcap system consists of Solar Water Heating Tanks that also function as roof Ridge & Hip caps. The Solarcap system can be installed on existing and new roofs.

Solar energy heats the water in the Solarcap tanks, which can then be distributed in two ways:

  • The heated water can be fed directly to the water piping system and fed to showers, baths and sinks. This option is well suited in low-cost rural and urban housing projects where electricity is unavailable.

  • This pre-heated water can also be fed into existing electrical and gas geyser systems, thereby substantially reducing the amount of electrical or gas energy required in heating the water. This method works particularly well together with traditional electrical and gas systems as these can then still be relied on to supply heated water when cloudy and rainy conditions reduce the performance of solar energy.


Solarcap has been designed to 'stand out' amongst other systems by not standing out when installed. Because the Solarcap tank replaces a portions of your roof ridge, it blends in with the roof structure. For this reason, Solarcap has become very popular with estates, lodges and home owners who are looking for a more eco-friendly solution to blend in naturally with the architecture of the building. Although a black-coated tank is the more efficient choice, we are able to adjust the colour of the tank to better match your roof colour. Solarcap is available in four standard colours, but customised colour options are  also available.

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