Hollow face brick and its use in construction

Creating an aesthetic and durable facade is a priority task in the construction of residential and public buildings. Among the variety of finishing materials, hollow face brick occupies a leading position due to the combination of decorative qualities and high performance properties.
The presence of internal technological voids significantly reduces the weight of the material, lightening the load on the foundation of the building. The correct use of this masonry stone allows you to simultaneously solve the problems of thermal insulation and protection of walls from negative atmospheric effects.
Technical characteristics and advantages of the material
The hollow face brick is produced by plastic molding followed by firing in high-temperature furnaces. The voidness of the material can vary from 15 to 45 percent, which determines its physical properties. The air chambers inside the product serve as an excellent thermal insulator, preventing heat loss through the exterior walls of the building.
Facing bricks are available in a wide range of colors and can have a smooth, rusticated or textured surface. This allows architects to implement complex design solutions when designing facades. The main advantages of using this building material are the following characteristics:
- high compressive strength, corresponding to grades from M125 to M200;
- excellent frost resistance, withstanding more than 50 freezing cycles;
- low water absorption, which prevents the structure from collapsing when wet;
- reducing the load on the building's supporting structures due to the low weight of the stone.
The low weight of the elements simplifies the transportation process and reduces logistics costs. In this case, the voids must have the correct shape and uniform distribution over the volume of the product. This ensures that the strength characteristics of the masonry are maintained under point loads.
Features of the facing brick laying technology
The installation of face bricks requires highly qualified bricklayer and strict compliance with technological regulations. The main difficulty lies in preventing the masonry mortar from entering the internal voids of the product. Filling the holes with a cement mixture reduces the thermal insulation properties of the wall and increases the consumption of materials.
Special fine-grained solutions with high plasticity or ready-made color mixtures are used to fix the elements. The facing masonry must be connected to the load-bearing wall using flexible connections made of basalt plastic or stainless steel. During the work, it is important to comply with the following technological requirements:
- the use of rigid mesh with cells up to five millimeters to prevent the solution from sinking;
- careful filling and stitching of vertical and horizontal seams;
- arrangement of ventilation gaps for condensate drainage from inside the wall;
- protection of fresh masonry from direct sunlight and precipitation until it dries completely.
Ignoring the rules of facade ventilation leads to the accumulation of moisture in the insulation and on the inner surface of the cladding. This is fraught with the appearance of efflorescences, a decrease in the durability of the structure and the development of fungus. A properly organized ventilation gap between 30 and 40 mm wide solves this problem.
The specifics of selection and quality control during purchase
The purchase of building materials requires a thorough inspection of the lot to exclude defects and discrepancies. It is recommended to order face bricks for one facade from one production batch, as the clay shades may vary slightly from batch to batch. Before buying, it is necessary to check the geometry of the products: deviations in length and width should not exceed three millimeters.
The presence of cracks on the front surface, chipped corners and calcareous inclusions indicates a violation of the firing or molding technology. The presence of lime in the clay leads to the subsequent destruction of the brick under the influence of moisture, causing the appearance of shoots. A high-quality brick emits a clear, sonorous sound when tapping, confirming its solidity.
The cladding material should be stored at the facility on pallets in factory shrink wrap to protect against precipitation. Compliance with the rules of transportation prevents fighting and the appearance of chips on the edges of the products. A careful approach to the selection and installation guarantees an impeccable facade appearance for many decades. Sports betting enthusiasts are spoiled with an incredible variety of disciplines and extensive markets worldwide. By using a 1xbet free promo code today that awards 100% bonus up to $130 on your first deposit, you receive ideal funds to explore major competitions like cricket, football, tennis, or kabaddi. The platform offers a separate cricket section with detailed information on current and upcoming matches. Live betting features include detailed live viewing and a Multi-Live section for following multiple events simultaneously.