Recommendations from experts on how to remove the creaking of a wooden floor in an apartment without disassembling it

Wooden floor coverings retain their aesthetic appearance for a long time, withstand loads well and prevent heat loss.

But if installed incorrectly or worn, the floorboards move relative to each other and the supporting beams (joists), which leads to a loud creaking sound.

To remove extraneous sounds, it is not necessary to re-layer the coating: it is enough to eliminate the mobility of the joints.

In this article we will tell you how to remove the creaking of a wooden floor in an apartment without disassembling it.

Why does the board covering squeak?

Creaking occurs when coating elements rub against each other, against beams, or foreign objects caught in joints and cracks.

The reasons for the free movement of floorboards can be:

• cracks in the wood, small debris getting into the structure;
• errors when laying the floor, poor fixation of the coating;
• rusting or loosening of metal fasteners;
• the use of damp wood in the manufacture of floorboards and joists, which leads to rotting and warping of the boards;
• damage to the tree by insects or fungi due to high humidity, improper cleaning, untimely treatment with protective compounds, etc.;
• deflection of the sheathing, wear of the gaskets between the joists and boards;
• high mechanical load.

How to determine the location?

Find out where the worn floorboards are located, can be done in several ways:

1. Go down to the floor below and listen carefully to where the floor creaks when walking. The ceilings amplify the sound, so it will be heard best under the joists.
2. Inspect floorboards for gaps, cracks and dirt. Deformation of boards due to moisture can be detected using a building level.
3. Walk along all the floorboards at different paces, paying attention to the range of movement of the boards.

How to eliminate sound without dismantling the floorboards, without opening the floor?

To eliminate unpleasant sound, you need to limit the amplitude of movement of the boards under load. This can be done by wedging, re-fixing, or creating an additional layer of flooring.

Polyurethane foam

Using construction foam, you can fill the gaps between the floorboards and the cavities under the joists. This makes the structure more rigid and eliminates mutual friction of the boards.

To eliminate squeaking necessary:

1. Clean the work area and remove any clogged debris from the cracks between the floorboards.
2. Spray the inside of the gap with a spray bottle. Shake the foam container and fill the defect to 30% of the volume.

   It is recommended to repair wooden floors at a temperature of +5…+25°С. If the foam was stored in a cold basement or cellar, it is recommended to warm it up in a bucket of warm water.

3. Wait for it to harden and repeat. If you blow out the crack right away, then when curing the foam will expand and protrude onto the floor surface.
4. Trim off excess polyurethane foam. Cover the surface with wood putty and varnish.
5. To save material, the lower part of large cracks can be filled with diluted alabaster or cement. The consistency of the solution should resemble tile grout or thick glue.

As you walk, the foam gradually cracks, so the creaking may occur again. If a problem occurs, repeat the procedure.Foam blowing should be carried out wearing gloves, goggles and a respirator.

To reduce the mobility of lags, you need:

• identify creaking areas, drill several holes in them down to the concrete floor;
• dilute the cement to the consistency of liquid sour cream;
• using a large syringe without a needle, inject a small portion of the solution into each hole;
• pump cement into the cavities under the joists until the solution stops entering the openings made.

After the solution has hardened, the holes are filled with plaster or wood mastic. To ensure uniform hardening, cement should be poured in small portions, allowing them to dry for at least 24 hours.

Using self-tapping screws

You can firmly fix the floorboards to the joists using self-tapping screws:

1. Find movable floorboards. Determine the position of the lags underneath them by the heads of the nails and make marks. If the caps are recessed into the floorboards, then you can find the fasteners using a magnet.
2. Drill holes where the boards are attached to the beams. The holes should be located in the middle of the floorboards.
3. Prepare self-tapping screws with incomplete threads. If the thickness of the board is more than 40 mm, then full-threaded fasteners can be used for fixation.
4. Using a screwdriver, screw the screws into the holes, sinking them into the wood 2 mm. If there is no joist under the floorboard, the cap will remain on the surface.

   The reason for the lack of support may be the destruction of wood or the use of shortened timber. In these cases, you need to unscrew the fasteners and continue fixing in other areas.

5. Seal the grooves in the floorboards with mastic or wood varnish. After the composition has dried, check the floor for squeaks.

The holes should be 1-2 mm smaller than the diameter of the screw so that the fasteners are screwed in with tension.

If it is not the boards that have become mobile, but the logs themselves, then you can attach them to the concrete base with anchors. The height of the fasteners must correspond to the thickness of the entire floor covering, taking into account the depth of immersion in the concrete.

The video will show you how to eliminate squeaking without opening the wooden floor:

Wedging method

If the creaking of the floor is caused by cracks and gaps between the boards, then small spacer wedges can be used for fixation. When wedging, the boards will be pressed tightly against each other, which will prevent them from moving under load.

How to fix creaking using wedges:

1. Prepare a mallet, wood glue and thin wooden slats 10-15 cm long. The number of slats depends on the area of ​​the room, the number of creaking floorboards and the frequency of placing wedges.
2. Clean cracks, joints and cracks in the flooring.
3. Coat several wedges with glue. Its layer should be thin so that when wedging, a minimum part of the glue is squeezed onto the surface. For more reliable fixation, wood glue can be mixed with PVA in a ratio of 1:2 or 1:3.
4. Hammer the treated wedges into the gaps at intervals of 20-25 cm. Coat a new batch of spacers with glue and repeat the procedure.
5. After fixing all creaking boards, leave them until completely dry. When the glue has hardened, cut off the protruding ends of the wedges with a plane.
6. Fill small cracks and gaps around the spacers with a mixture of wood glue and fine sawdust.After the composition has dried, sand the filled cracks and cover with paint and varnish.

Using dowels

If the boards come apart at the joints and move under load, they can be secured with dowels. They are small wooden rods that connect two adjacent boards.

How to solve the problem using dowels:

• identify and mark any squeaky floorboards;
• prepare an electric drill, a mallet, glue and 2 dowels for each joint of the moving board;
• drill holes in the floorboards at an angle of 45 degrees - the directions of the drill should be perpendicular to each other, so one hole is made from the side of the movable board, and the other from the opposite side;
• coat the dowels with wood glue or its mixture with PVA;
• drive the fasteners in with a small mallet;
• wipe off any glue that appears on the surface;
• after the composition has hardened, cut the end of the dowel flush with the floorboard, sand and putty;
• Paint and varnish the sanded area.

Additional flooring

An additional layer on top of the floorboards helps distribute the load evenly and muffle squeaks.

To strengthen the floor you need:

1. Calculate the area of ​​the room, prepare the required number of large-format sheets of plywood or chipboard with a thickness of at least 12 mm.
2. Determine the location of the creaking floorboards, secure them to the joists with self-tapping screws;
3. Lay the underlay on the floor, and then 1-2 layers of plywood.
4. To firmly fix the sheets, you need to coat them with wood glue.
5. Secure all wood-based sheets with self-tapping screws at equal intervals of 25-30 cm.

You need to plan the installation of chipboard or plywood so that the joints of the sheets do not coincide with loose boards.

The disadvantages of the method are high cost compared to fixation with self-tapping screws or foam, as well as low efficiency. When the joists and boards wear out, the sheets can only muffle the creaking, but will not eliminate its cause.

Other means

In addition to the methods listed above, To combat squeaking you can:

• fill the gaps in the joints with cord treated with glue;
• fix the joints with wood putty or sealant made from varnish, sawdust and paint;
• fill cracks with talc-based powder.

Prevention of breakdowns

To prevent squeaking, you need to follow a few simple rules:

1. Place a backing made of foamed polyethylene, rubber or other non-woven material on top of the joists.
2. Observe the recommended distance between support bars. Check that all boards are level using a bubble level.
3. Leave gaps between the outer floorboard and the wall.
4. Use only dried wood for floor installation (moisture content of beams and boards is no more than 12%). In dry rooms, maple and conifers are used, and in wet rooms, larch, alder and ash are used.
5. Provide natural ventilation and maintain low humidity in the room.
6. Treat floors annually with antiseptic and water-repellent compounds.

To prevent premature wear, the gap between the support beams is selected in accordance with the size of the boards.

Useful tips

When troubleshooting The following recommendations will be useful:

• to secure the boards, use only anodized, not black, self-tapping screws;
• holes in the floor should be 1-2 mm smaller than the diameter of the fasteners;
• Before screwing in the fasteners, blunt the end of each self-tapping screw to prevent damage to the concrete flooring;
• to avoid severe shrinkage, instead of polyurethane foam, you can use epoxy or polymer glue to fill cracks;
• If there is a slight creaking, the cracks at the joints of the boards can be rubbed with a soft wax candle.

Conclusion

Creaking wood floors can be the result of improper installation, wood contamination, or worn-out fasteners and boards. To eliminate the problem, the elements need to be firmly fixed to the joists or fill the gaps that allow them to move freely.

Most often, polyurethane foam or self-tapping screws are used for this purpose. In case of severe wear or fungus damage to the wood, it is recommended to completely replace floors.