The installation of corner profiles and reinforcing mesh is an important stage of any plaster and putty, and even more so during renovation. As is known, a properly installed external thermal insulation system reduces heating and cooling costs by about 30%. By achieving a uniform and pleasant indoor climate, it contributes to a comfortable and healthy lifestyle.
The installation of corner profiles and reinforcing mesh during renovation is done after the installation of the thermal insulation panels. Then the corners on the facade are treated with PVC corner with mesh and water-draining profiles with mesh using a putty or adhesive-putty mixture for thermal insulation. This glue, in addition to increased adhesion strength to the polystyrene base, also contains polypropylene or polyester fibers, which increase the crack resistance of the putty. The purpose of the accessories is, on the one hand, to strengthen these weakest points, and on the other hand, to give a better aesthetic appearance.
TYPES OF CORNER PROFILES
- PVC water-dripping profile with mesh (water barrier): prevents water from flowing down facades and contributes to creating ideal finishing horizontal areas (window sills)
- Aluminum or PVC corner with mesh: to protect the external corners of the thermal insulation system
- Window profile with mesh: this is a profile for finishing the putty on a window frame - it prevents cracks from forming around the window frame
The puttying during the installation of the thermal insulation system is carried out in parallel with the laying of an alkali-resistant reinforcing mesh (glass textile or fiberglass mesh) weighing 145 g/m, with the adhesive-putty mixture being applied with a 10 mm comb and the mesh being pressed against it so that the material passes through the squares of the mesh and is smoothed/puttyed evenly. In this way, the mesh remains in the middle of the adhesive-putty layer and reinforces it. The mesh must cover the entire insulation - there must be no areas without mesh. The overlap between the individual meshes must be at least 6 cm (10 cm is a good choice) to guarantee the homogeneity and strength of the reinforced putty.
WHERE ARE CORNER PROFILES PLACED?
Certain areas of the facade are subjected to a higher load. This requires their additional reinforcement. Underestimating this task creates a risk of cracking of the thermal insulation system and the plaster, which impairs its efficiency, durability and aesthetic appearance.
- Corners around door and window openings: for structural reasons, static stresses are concentrated around doors and windows in buildings. Over time, this can lead to cracks if not additionally reinforced with a mesh under the window sills.
- External corners: the external corners of the building are often subjected to unintentional mechanical loads. Violation of the integrity of the external corners creates conditions for moisture penetration and damage to the thermal insulation.
- Internal corners: the strips of masonry around door and window openings are usually insulated with a thinner layer of thermal insulation. These areas also experience additional stresses that can crack the plaster if proper reinforcement is not carried out.
HOW TO LAY REINFORCEMENT MESH
To achieve a long-lasting and effective thermal insulation system, additionally reinforce areas with increased load or places with higher stress concentrations. Here are the steps to achieve this goal:
- Stage 1:
Arrange the insulation boards so that the vertical joints between them are staggered. At the corners of windows and doors, lay whole boards cut to size.
- Stage 2:
First reinforce the risk areas. Then lay a reinforcing mesh along the entire facade. This way, the risk areas are doubly protected. The reinforcing mesh is supplied in rolls. Unroll it to the required lengths. Lay the reinforcing mesh in the previously applied layer of adhesive. Overlap every two adjacent pieces with a strip at least 10 cm wide.
- Stage 3:
3a forming internal corners use ready-made profiles. If you do not have such, fold the mesh and stick it to the wall on the other side of the corner in a strip at least 20 cm wide.
- Stage 4:
3a Reinforcing the external corners, use ready-made corner profiles with reinforcing mesh. They add strength to the edge and precisely outline the corner. They are laid in the same way as the reinforcing mesh.
- Stage 5:
Reinforce the corners of the openings around doors and windows with diagonal reinforcement - pieces of mesh measuring about 20 x 40 cm, which are embedded with glue in these places.
- Stage 6:
After reinforcing the risk areas, proceed to the complete implementation of the reinforced putty. Apply an even layer of adhesive, lay the mesh and, with light pressure with the trowel, embed it in the adhesive. Smooth out the adhesive that has come out through the mesh openings until you have completely covered the mesh. Add adhesive if necessary.
WHAT DO WE OFFER?
We offer a variety of corner profiles that are used in the installation of thermal insulation systems. As we have already noted, their installation is an important stage in the installation of the entire system, as they guarantee strength and a good aesthetic appearance.
We have the following corner profiles: aluminum, galvanized, water-draining with mesh, plastic with mesh. In our store you can also find a PVC arch profile, designed for shaping elliptical walls and corners.
Our sales list also includes fiberglass alkali-resistant insulation mesh, which is used to reinforce and strengthen various types of plasters and putties.
The products in this group are from the brands VESTAL, LIKOV. WEBER, BAUMIT.
The prices are affordable.
