The plinth profile is designed to provide support for thermal insulation and finishing materials, as well as to protect their lower ends. It is also necessary if the facade line is curved or has other flaws. In such conditions, when installing the basement profile, PVC expansion joints and connectors are used.
Plinth profile for insulation
The basement profile is rarely used for self-decoration and insulation of houses. This is an unacceptable miscalculation that can provoke a lot of trouble during the operation of a building.
Installation of the start profile. Insulation expanded polystyrene
All technologies for the construction of modern facade systems provide for the installation of a basement profile. Therefore, it is unwise to ignore the recommendations of experts.
There are three types of these materials:
Base-base aluminum starting profile with 53 mm drip tip
Products of this type are made of anodized aluminum, which is maximally resistant to moisture.
As a result of the use of a special method of metal processing, a thin protective film is formed on its surface, which has a sufficiently high resistance to mechanical stress. But nevertheless, when installing an aluminum basement profile, one should strive to avoid the formation of scratches on the metal. Subsequently, corrosion may develop in these places.
Starting basement profile
The basement profile is a U-shaped bar, one shelf of which is lower than the other. The higher one has a perforation through which the aluminum strip is mounted to the wall of the building.
The second shelf also has holes and is equipped with a drip bend, which serves to drain moisture from the materials adjacent to the profile.
Wet type facade. Base profile
Aluminum basement profile is produced by both domestic and foreign enterprises. The most famous and popular brands are Rostec, Alta-Profil, Profil Systems, BauKom (Germany).
Characteristics of the aluminum base / plinth profile
|Product||Standard length||Width||Thickness||Warranty period|
|Base profile|| 2. |
|40 -200 mm||0.6-1 mm||At least 30 years old|
The shape of the strips of this type of profile is the same as that of aluminum. The only difference between these products is the material of manufacture. For the production of PVC profiles, high-strength plastic is used, which is not afraid of frost, moisture, or corrosion. It also successfully withstands temperature extremes.
PVC basement profile, fastening scheme
Another difference between PVC and aluminum profiles lies in the significantly lower price. This is one of the reasons why this type of support strips is predominantly used in private housing construction. When erecting industrial and civil construction projects, an aluminum profile is mounted.
PVC base / plinth profile composite
This type of profile has its own design features. It consists of two parts: back and front (end) strip.
The back is L-shaped. One shelf of the bar has holes for mounting fasteners.
Three types of profiles, including two-piece
The second shelf has a U-shape. The second part of the profile, the front, is inserted into this narrow groove. On its outer side there is a drainage outflow and a strong reinforcing fiberglass mesh.
Such a profile device allows you to adjust the distance between its first and second shelf. Fiberglass mesh is an additional supporting element and is necessary when plastering facades.
Wet facade. Technology
The accessories for the plinth profile can be used to create a perfectly straight facade line. Connectors are required to connect aluminum or PVC strips.
These products represent a solid plate with hollow U-shaped ends. Aluminum strips are inserted into these slots, which must be connected to each other.
Connector for base / plinth profiles
Using the connector
If the basement profile does not fit tightly to the wall, special products are installed between it and the bearing surface - expansion joints. They all have holes through which installation is carried out. The role of expansion joints lives up to their name.
The thickness of these components may vary. Choose the one that is required to cover the gap between the load-bearing wall and the aluminum strip.
For mounting the basement profile, in addition to the accessories, you will need dowels or dowels-nails. If the walls of the facade are uneven and expansion joints are used, spacers of various diameters are used along with the fasteners.
When carrying out thermal insulation works more often all use an aluminum or PVC profile.
The width of the strips should correspond to the thickness of the insulation material. Installation technology is as follows.
Step 1. Perform horizontal marking of the lower boundary of the heat-insulating layer. In order to draw a straight line, use a level or bubble level.
If the length of the facade is significant, self-tapping screws are screwed in each of its corners and a strong thread is pulled between them. The profile can be set along it, or a line drawn by a marker.
Step 2. Work begins from the corner of the facade, therefore, the corner element is first made from the basement profile sheet. This is done as follows:
Cutting the profile
Step 3. Attach the profile to the corner of the facade and mark the attachment points on the wall using a marker through the perforation in the high profile shelf. They should be at a distance of 30-50 cm from each other. The size of the step between the attachment points depends on the weight of the insulating material. If it is a lightweight foam sheet, you can increase the distance to 50 cm.
Step 4. Using a drill and a carbide-tipped drill bit, drill holes in the wall.
Stages of profile fastening
It is necessary to drill holes for dowels
Drilling a hole
Drilling a hole
Step 5. Apply a plinth profile to the wall in those places , where necessary, and then select the expansion joint of such a thickness that it corresponds to the width of the gap between the facade and the aluminum strip.
Installing the compensator
Through the perforation in the profile and the compensator, install a hollow into the hole in the wall rod (dowel).
Step 7. Use a hammer to hammer a nail into the dowel. The plinth profile is fastened along its entire length.
The screw is inserted into the dowel
Driving in the screw
Fix the profile.
Drive the screw with a hammer
Step 8. Install the connector on the profile end and proceed to the installation of the next aluminum (or PVC) strip.
After the completion of the work, proceed to laying the insulation. Its lower ends must be installed in the recesses of the starting plinth profile. If the insulation is glued, glue must first be applied to it.
Upon completion of the thermal insulation work, the gap between the wall and the basement profile is filled with moisture-resistant and frost-resistant foam.
Installation of insulation on the basement profile
Installation of insulation boards
Fixing the boards with a dowel-fungus
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