The hot box

The Hot Box by SAFIERA is used to test energy efficiency of fenestration elements

The AAAMSA Group established the South African Fenestration and Insulation Energy Rating Association (SAFIERA) to support its drive to promote energy efficiency in the building industry. SAFIERA’s primary goal is to provide a fair, accurate, and reliable energy performance rating system.

The energy performance rating process is based on the complementary use of computer simulation and physical system testing to establish energy performance ratings for fenestration and thermal insulated building envelope systems.

The formation of the association has led to an investment by the AAAMSA Group for the construction and commissioning of its flagship RGHB test facility. The RGHB, located at the Thermal Test Laboratory (TLL) on the CSIR campus, can be used to determine the heat transmission values (U-values) of most building envelope systems in accordance with ASTM C 1363-05 and ASTM 1199.

Test specimens are mounted in a test frame between two climatic chambers, exposing the one side of the test specimen to typical room conditions and the other side to typical cold external conditions respectively.

Room conditions are typically 21°C and airflow conditions representing natural convection, while the cold external conditions are typically -18°C and airflow velocities of up to 20 km/hr.

By carefully calibrating and characterizing the RGHB, it is possible to determine the comparative and absolute U-values of various specimens in a controlled environment.

Although the RGHB is currently configured to test fenestration elements, it can easily be reconfigured to test practically any other insulated building envelope system. Tests are normally performed for building envelope systems in a vertical orientation, but by rotating the RGHB, measurements can also be performed for the test specimen at any inclination in between vertical and horizontal.

To allow comparison of the results of the fenestration testing, the standard dimensions for fenestration specimens are 1195mm wide x 1495mm high; with a tolerance of 2mm. Manufacturers should ensure that the specimens presented for testing have been successfully tested for air leakage.

The maximum specimen dimension that can be tested in the RGHB is 4100mm wide x 3600mm high. For non-standard test specimens and tests, it is important for manufacturers to consult with TTL prior to the manufacturing

Previous story
keyboard_arrow_upForever beautiful
keyboard_arrow_downForever beautiful

Aluwood Projects' new aluminium garage door is ready to set the market ablaze with its revolutionary design and wood look finishes

Next story
keyboard_arrow_upBe geyser wise
keyboard_arrow_downBe geyser wise

The Franke Geyser Wise system means that you can regulate your geyser from the controller and ensure quick and steady water temperature control

keyboard_arrow_upSplash of colour emboldens the 2018 Franke Kitchen Trends Project
keyboard_arrow_downSplash of colour emboldens the 2018 Franke Kitchen Trends Project

Four leading kitchen designers have selected the perfect palette and up-to-the-minute industry Trends to curate competing spaces in this year’s Franke Kitchen Trends Project themed ‘An Expression of Colour’. Kitchen Studio’s Crestwood Kitchens and Kitchen Spectrum; Bespoke Designs; and Expert Kitchens & Interiors will participate in this high-end installation which is set to feature at […]

keyboard_arrow_upPlanting your retaining wall to survive a drought
keyboard_arrow_downPlanting your retaining wall to survive a drought

While the most critical contributor to the success of any segmental retaining wall (SRW) will always remain detailed planning and competent workmanship, planting will transform a functional structure into an eco-friendly environment that can create a dazzling display of colour, scent and texture. Add to that the possibility of a drought and water restrictions, it […]

keyboard_arrow_upConsolidated Steel Industries acquires Robertson Ventilation Industries
keyboard_arrow_downConsolidated Steel Industries acquires Robertson Ventilation Industries

The directors of CSI are pleased to announce that an agreement has been reached with the directors of RVI that sees CSI acquiring the two trading divisions of RVI comprising the Smoke and Heat Exhaust Ventilation Systems Division (SHEVS) and Architectural Solution Division (AS). The SHEVS Division offers turnkey solutions to the South African fire […]