Clay Bricks Optimal Sustainability

Clay Bricks  unique walling eliminates unnecessary future power generation and maintenance.  Clay bricks compliments natural enviroments which provides healthy communities. Clay Bricks consist of thermal Mass and passive Solar Design which result in optimal life cycle value. The uncompromising durability provides the customers with a lifetime peace of mind and long term wealth creation.

The Western cape area in the Garden route specific focusses on what the best products are for the enviroment.  Clay bricks has proven from Riversdale to Port Elizabeth to be the preverd product to use for building.  The clay brick is not only enviromental friendly after manufacturing but are also be recycle after been used and are made with natural elements to achieve the lowest impact to the enviroment.

Brick Supplier in Garden Route

Rheebok Bricks are proudly suppliers of clay bricks that is manufactured from natural resources that is mined on our premises. We are suppliers for various company’s in the area between Albertinia to Knysna.  We also supply clay bricks directly to the public.  Our products are not only of good quality but are enviromental friendly and are delivered with excellent service.

Our products are manufactured at our factory in Great Brak River and are distribute from there to our depot in mosselbay.  The factory not only mine, the factory also manufactures and sells directly.  Rheebok bricks has been part of the community for over 40 years and have been part of various projects and developments in the Garden Route, Western Cape.

Water Absorption of Clay Bricks

Clay bricks of specified low water absorption used at the base of a wall (minimum two courses) to resist the upward movement of ground water. Their use is recommended for free standing wall where otherwise a sheet of DPC material would create a plane of weakness causing the wall to be vulnerable to lateral forces. 

Experiment results show that bricks with water absorption rate at 8% is 10 times more durable in resisting salt attack than that with water absorption rate at 20%. Well burnt brick has a normal water absorption rate less than 10% in contrast to that of concrete block and cement mortar exceeding 15%. This explains why brick walls require comparatively minimum maintenance in the course of time.


Clay brick homes

Rheebok Bricks supplies not only Non Face plaster & Non face exstra but also manufacturers facebricks.  Our Rheebok Clinker is a facebrick which leaves your home with no future maintenance.  The Rheebok Clinker facebrick you don’t need to plaster or paint which is also more cost effective.  The long term cost benefits id immense durability and maintenance free nature of clay bricks, ensures a highly cost effective building material.  Clay brick homes are always in demand because of their enduring aesthetic appeal.  In the Garden route this is a mature factor.  The area tries to develop as enviromental friendly as possible.  The Rheebok Clinker provides you with the most sufficient cost effective building brick which compliments the natural enviroment elements.

Why use a clay brick?

Methods of Manufacturing

Clay bricks are formed in a mould (the soft mud method), or more frequently in commercial mass production by extruding clay through a die and then wire-cutting them to the desired size (the stiff mud process). The shaped clay is then dried and fired either by burning in a kiln or sometimes, in warm and sunny countries, by sun-drying to achieve the final, desired strength. The action of heat gives rise to a sintering process that causes the clay particles to fuse and thus develops extremely strong ceramic bonds in the burnt clay bodies. Such bonds are highly stable. As a result, bricks can withstand the severe weathering actions and are inert to almost all normal chemical attacks.

Basic Advantages of Brick

  1. Aesthetic Appeal
  2. Thermal & Acoustic Insulation
  3. Zero Maintenance Cost
  4. Fire Resistance
  5. Flexible in Application

1. Aesthetic Appeal
Brick possesses natural and infinite pleasant colors of burnt clays. Its color formation is achieved through a complicated physio-chemical reaction during the firing process. In contrast to the color of stained body, brick color is permanent and will not fade during weathering process. Different clay compositions, firing temperatures, or kiln atmosphere can lead to different colors. By proper control of these factors, bricks can be made to exhibit endless variety of natural and attractive colors. Bricks’ natural colors combined with the extreme flexibility in applications produce aesthetic results which are always personal and everlasting.

2. Thermal & Acoustic Insulation
Thermal Insulation: Brick generally exhibits better thermal insulation property than other building materials like concrete. Perforation can improve the thermal insulation property of bricks to some extent. Besides, the Thermal Mass and moisture that the brick has absorbed can help to keep the temperature inside the house relatively constant. In orther words, brick absorbs and releases heat slowly and thus keep the house cool during day-time and warm during night-time.

Acoustic Insulation: As far as acoustic insulation is concerned, brick wall provides good sound insulation property due to its dense structure. The thickness and density of brick will deaden noise transmission and will deflect noise from streets, neighboring homes, and jet planes. The sound insulation of brick work is generally accepted as 45 decibels for a 4 1/2 inches thickness and 50 decibels for a 9 inches for the frequency ranges from 200 to 2,000 Hz. Know more about Noise Control.

3. Zero Maintenance Cost
Clay bricks do not require maintenance. When you build a home, you might save a few hundred dollars by using a substitute wall material. However, major exterior maintenance such as painting can cost as much as several thousand dolars, depending on your home size. Clay brick may cost a little bit more cost initially, but the very first time that you paint, you might well spend more than the additional cost of the brick.
In addition, you do not need to worry the clay brick from rotting, denting, warping, rusting, spliting, peeling, fading, and termites. As your home gets older, it naturally becomes more beautiful.

4. Fire Resistance
The fire resistance of a building material refers to the length of time a walling element is about to resist a fully developed fire. In every case, clay brick walls obtain maximum fire ratings. To the owner of a clay brick building, this means peace of mind and substantial savings over time on insurance premiums. Please refer to the table below for Design of Clay Brickwork for Fire.


Fire resistance
period, minutes
Required material thickness
for insulation Mm
Maximum slenderness for
structural adequacy
30 60 25.0
60 90 22.5
90 110 21.0
120 130 20.0
180 160 18.0
240 180 17.0

One incident, The Great Fire of London, dated back to 1666 has influenced/transformed the building code since the mediaval period by replacing the wooden houses with brick and stone buildings.

5. Flexible in Application
The high compressive strength of fired clay bricks has been exploited for millennia to build structures ranging from single-storey huts to massive public buildings and enormous bridges and viaducts. In particular, it can be used for loadbearing structures which greatly simplify the construction process so as to save materials, time, and labor. Besides, brick can be made into convenient shape and size to facilitate the construction work

Durability and Maintenance
Brick is a low maintenance, permanent, durable building material that won’t rot, rust, burn, corrode, decay, or encourage mold growth. Because it never needs painting, it does not require the use of paint containing volatile organic compounds (VOCs). The National Association of Home Builders’ (NAHB’s) National Green Building Standard (NGBS) gives credit for “building materials or assemblies that do not require additional site-applied material for finishing.”

The durability of masonry products such as clay brick is recognized by ASTM International and CSA International standards and should be part of building envelope designs. Brick units are not only durable but they also contribute to building assemblies that remain useful in the material cycle for long periods of time. If properly detailed, the use of clay brick will minimize the risk and environmental costs of premature failure of building components. As most deterioration occurs to the exterior of a building, good building envelope design is essential.

Besides material durability, the actual assemblage of the wall system is fundamental in ensuring the building’s longevity. Exterior brick walls are designed with a drainage component, or drainage cavity, that is designed to direct moisture that permeates through building materials or leaks via deficiencies in windows and other penetrations, back to the exterior.

Because of the durability of masonry and masonry structures, brick buildings are often ideal candidates for building reuse, allowing brick units to be repurposed or reused when carefully dismantled. Brick masonry also compares favorably with Life Cycle Analysis that includes materials, construction and energy consumption.

Resource Management
Brick manufacturing is one of the most efficient uses of raw materials to produce an end product. Brick’s primary ingredient, clay, has been classified as an “abundant resource” by American Institute of Architects (AIA), and typically a clay quarry can stay in use for at least 50 years. A 200 acre quarry is able to provide sufficient brick to clad approximately 10,000 houses (12.9 million square feet of wall area annually), in contrast to approximately 12,000 acres of farmland needed to produce enough straw bales to cover the same wall area. From one perspective, the industry optimizes benefits from the land for current and future generations by mining minerals that would be locked in if developed immediately, preventing future access to that clay. Through the extraction of the clay and rehabilitation of the land to pre-quarry use, future development can occur on land that achieved twice as much value as originally planned.

Brick manufacturing facilities are usually located near their source of raw materials. Any waste unfired brick is fed back into the manufacturing process to produce new brick and many facilities utilize scrap fired brick as grog, which replaces a portion of the virgin raw materials and further reduces emissions. Some facilities utilize off-site waste such as ceramic tile or scraps as part of the raw material for brick.

When waste fired brick is not used as grog, it can be recycled or repurposed into a variety of products such as kitty litter; landscaping materials for tennis courts, baseball fields or flower beds; masonry training; old, reclaimed brick for the construction of new buildings; fertilizer and backfill or aggregates, resulting in virtually no waste.

Recent advances in brick manufacturing have allowed the introduction of bricks with increased voids that provide equivalent performance with respect to resisting water penetration and flexural bond strength. The brick industry’s goal is to reduce resources used in the manufacturing process. Water used in the manufacturing process contains no added chemicals and is evaporated back into the air during the firing process, but further optimization of water use is always being studied.

Energy Efficiency and Reduced Emissions
A long service life reduces energy needs. Clay brick’s durability and 100-plus year life cycle reduces the need for replacement, thereby eliminating further manufacturing energy required for replacement products. Brick manufacturers strive to conserve energy in the firing process, using less than 50% of the energy required to produce brick in 2004 compared to 1981. Further fuel reduction efforts since 2004 have totaled approximately 10%.

Fuel savings since 2004 have also resulted in a reduction of approximately 145,075 tons of carbon dioxide. Air emissions are minimized with controls such as scrubbers installed on kiln exhausts. Dust is controlled on-site through a variety of filtering systems, vacuums and water mists.

Social Impact
Since clay occurs naturally, it is inherently inert even when formed into brick. Consequently, clay brick is the only cladding material that emits no volatile organic compounds (VOCs), which results in better occupant health, comfort and productivity. Brick also has a high sound proofing quality, providing a sound transmission class (STC) of 45 or greater, thereby shielding occupants from distracting outside noise, and because of brick’s inherent strength and fire resistance it often remains standing even under the harshest conditions. Brick’s passive-solar qualities and thermal mass properties take advantage of the sun’s energy for heating and cooling, keeping rooms cool in the summer and warm in the winter.

The use of clay brick in construction has a diverse and extensive history for a wide range of reasons. In addition to its durability and structure, it assists energy performance, waste management, and the environment. Furthermore, the progress in recent years in these key areas will ensure that the future of brick will be just as extensive.