Dilatasyon Yalıtımı / Dilatation Insulation

What is Dilatation Insulation and Profile?

The space created between the structures built side by side and independent from each other is called dilatation. They are the gaps left to prevent damages that may occur due to different expansions and building movements. Profiles attached to these gaps are called dilatation profiles.

The use of the dilation profile is extremely important for the coating. The expansion, contraction causes the base surface to move continuously. When laying the coatings, there is a danger of cracking and breaking of the coating due to the differences in the expansion / contraction ratio of the base and the surface. There are two types of dilatation profiles: narrow and wide base. When using both types, the base surface must have a dilatation joint and a veneer dilatation in the same line. The flexible profile consists of a rigid PVC or aluminum fixing arm and a soft PVC or rubber insert that prevents the surface movement of the coating. If the area to be covered exceeds 25 square meters, it is highly recommended to use the dilatation profile.

Due to the quality of EPDM rubber, the profile with EPDM rubber is resistant to higher temperatures and has a long service life even in contact with polar solvents, hot water and steam. The tensile strength and elasticity of rubber is outstanding, so it can be used to achieve maximum water tightness and heat resistance.

Why is Dilatation Profile Attached?

The dilatation profile is a profile that works with the building. There are different types such as aluminum and PVC. Depending on the region to be used, different productions can be made as an alternative. The most important reason for the installation of these profiles is to close the existing gap with a material that will not break or crack during movement and to ensure the continuity of waterproofing.

How is it attached?

Dilation profile production differs according to the selected profile. If it is an aluminum profile, it is screwed with the appropriate screw after the parts that the profile will press on the facade are masticated. If there are gaps near the profile at the end of the production, it is filled with suitable material. If the preferred profile is with mesh, when the mesh plaster is started to be applied, the profile mesh is adhered to the facade with plaster and the mesh coming from the facade continues by overlapping the dilatation profile mesh. In other words, each material has its own production. The important thing is that the installed profile is mounted on the scale, on the gauge and without leaving any gaps.

As an alternaive; After being compressed with a wick, a construction chemical, which is generally referred to as a dilatation joint, can be applied to the dilatation gaps that are not too wide. In this production, it is very important that the applied material is applied without a gap in order to prevent water from entering the dilatation gap in the same way. If stainless screws are used while screwing the profiles, we will eliminate both the problem of rust flowing to the facade in the future and the problem of rusting and breaking of the screws or leaving themselves.

Dilatation Joint

The space created between the structures that are formed side by side and independent from each other is called the dilatation joint.

These are the spaces left in order to prevent damages that may occur due to different expansions. The fact that reinforced concrete allows the structure to be built as a single piece is beneficial in many ways. However, when the dimensions of the structure increase and the conditions affecting the connections become important, the secondary stresses, which are not generally considered in the calculations, may increase to dangerous values.

In obligatory cases, sizing can be done by taking into account factors such as shrinkage, temperature changes, basically different settlements. What is better and most applied is to take measures to ensure that these effects remain small and not occur, instead of meeting these effects, and to arrange the carrier system of the building accordingly. This can be achieved significantly by separating the structure with joints, breaking the continuity and connection in appropriate places.

These sections, which allow different parts of the structure to move independently from each other, are usually called movement joints or separation joints. In addition, it is seen that the joints are named according to the reasons that require them to be made. However, when the joint is arranged, it would be more appropriate to be referred to by its general name, since it can perform detailed tasks, whichever is important.

Various joints can be listed with their reasons as follows:

Expansion Joints

In reinforced concrete structure, the structure is divided into blocks with expansion joints in order to limit its dimensions in the plan in order to reduce the effect of shrinkage, creep, temperature changes, and length differences caused by it. With these joints, excessive damage to the structures is prevented due to the great heat effect that occurs in fires.

Seating Joints

These are the joints made to prevent the different settlements and rotations that may occur due to the unevenness of the foundation soil properties or the structural loads in the entire area from damaging the structure. Building sections built on floors of various characteristics or building sections with different characteristics and variously loaded side by side are separated from each other by seating joints.

Constructive Joints

These are the joints formed in order to prevent the deformations caused by static moving loads and dynamic forces, and to keep the vibrations circumferentially.

Earthquake Joints

These are the joints that divide the building into sections that can cause less harmful vibrations due to earthquakes.

There are also business joints other than these. These joints, which occur when the concrete is not poured frequently for various reasons, are temporary, reveal the joints of the concrete and are examined separately from the movement joints mentioned here.