How and what to seal inter-panel seams

What to seal the inter-panel seam

Currently, for the sealing of inter-panel joints, the following materials are mainly used:

1. Foam;
2. Sealant;
3. Polyurethane insulation

These materials can be used individually, or can be combined.

How to choose the most suitable material and carry out sealing work will be considered in more detail below.

We seal the seams with mounting foam

You can use the mounting foam to seal the inter-panel seams. Its use has advantages and disadvantages.

Advantages of using a mounting foam:

1. Qualitatively fills all cracks and voids;
2. Easy work process;
3. Short term for complete drying and hardening;
4. acts as a heat insulator;

Disadvantages:

1. High material cost;
2. Destroyed by direct sunlight.

Based on the above facts, we can conclude that the foam is perfect for sealing small cracks from the apartment.

Instruction for sealing joints with foam. Selecting and purchasing materials

To begin with, you need to select quality materials and purchase them. By designation, 4 types of foam are selected. You can get detailed advice at the place of sale. Also, when choosing a foam, it is necessary to take into account its characteristics: expansion coefficient, density, shrinkage, adhesion.

Surface preparation

We provide access to the seams and clean them from the old sealant. We take out the old materials used to seal the joints, and then thoroughly clean the surface with a brush or brush and wipe with a damp sponge.

Foam application

After all the preparatory work has been completed, it is possible to proceed to the direct application of the mounting foam.

Finishing stage

After the foam has completely solidified, it is possible to cut off its protruding parts and proceed to the putty.

It should also be said that if the crack is very large, then one mounting foam can not do. It will be necessary to additionally lay the insulation material in the crack.

All work with the installation foam can be performed only in cold or dry weather. In no case should work be carried out with high humidity. Since this will lead to the opposite effect, as water, at minus temperature will expand, thereby destroying the seam.

We seal the inter-panel seams from the apartment with a polyurethane foam insulation

This is a polyurethane foam tube with a hollow or solid structure. To seal the slots, it is better to use hollow, as it is easier to choose the required diameter and it is more elastic.

Advantages:

1. Low cost;
2. Easy installation;
3. Durability;
4. Non-rotting;
5. Resistant to sun exposure.

Disadvantages: With poor sealing absorbs moisture, then freezes and collapses. Not at all sections of the seam densely fills it and therefore water penetrates.

Mounting

Just as with sealing joints, foam, for the beginning we carry out preparatory work and purchase materials. It should be noted that the diameter of the tube should exceed the diameter of the gap by 10-30%.

After the completion of the preparatory work, you can start laying the tube in the seam, ramming it with a special spatula.

The seam is then sealed with mastic.

Combined method of sealing gaps in the apartment

To date, combining the above methods is an effective method of sealing. Known is a combination called "Warm seam".

The main stages of work on the technology "Warm seam"

1. Seam cleaning. Remove all debris and clean the seam with a hard metal brush, vacuum off the dust and, if possible, wipe with a damp sponge.
2. Filling the mounting foam. Fill the seam by 1/3, as it will increase in volume.
3. Before frothing the foam, we put foam polyurethane insulation, ramming it with a wooden spatula.
4. We seal with mastic( sealant).You can use cement plaster.