The most significant advantage of precast, which is increasingly used in construction, is undoubtedly the thermal insulation it provides.
In ensuring the highest efficiency of this process, precast waterproofing at the junction points during the installation stage is crucially important. These are applied to the joints of the facade panels. If proper procedures are not followed, serious insulation problems may arise for the occupants of the house in terms of thermal insulation in the future.
How is Precast Waterproofing Done?
Precast panels are created in two ways. There is a system where the panels interlock when they come side by side during the installation process. It is difficult for water and similar elements to pass through here.
However, there is another process that does not have suitable production for this. There are gaps between the panels. In such a precast cladding process, water can be temporary. Waterproofing is carried out by adding polystyrene strips to these gaps. Water penetration can be prevented in this way. Strips can come in different sizes.
Thus, the joint operations on the panels gain a unified appearance. Polystyrene strips, with their flexible structure, contribute to the longevity of use in construction areas.
Precast Panel Intersection Sections
Waterproofing is also applied at points where joint operations are required for facade elements such as cornices, window sills, and roof cornices, which are included in precast cornice processes, not only the exterior facade but also in precast cornice processes.
At the very beginning of the process, i.e., during precast exterior design, the panels are designed to interlock. Water passing between the panels can be prevented with this production. However, in designs where this production is not made or in case of gaps between the panels, polystyrene strips are placed in the joint gaps. Since the gaps can be in different sizes, you can find these strips in different dimensions as well.
Correctly carrying out this process also enhances the function of thermal insulated precast facade panels. The strips are threaded through the junctions to fill in completely and remain intact in the structure.
How is Joint Filling Material Applied After the Strip?
The process does not end with just threading the strips. After threading the polystyrene strips through the joints, joint filling materials suitable for use in these areas are also used. Joint filling materials can be found in different colors. Thus, a uniformity is achieved in the external appearance of the structure.
Joint filling materials are applied directly to the panel junction points. The use of this material together with the strips further enhances its effectiveness in exterior waterproofing. These filling materials must be resistant to situations such as tearing. Additionally, a bubble curing process is carried out in this process. Because surface adhesion can quickly deteriorate. This process is carried out to prevent this and the adhesion of dust.
