Laying Wood Floor Over Bitumen

Laying Wood Floor Over Bitumen: Essential Considerations

Installing wood flooring over bitumen requires careful preparation and technique to ensure a durable and aesthetically pleasing finish. While it may seem like a challenging task, following these essential aspects will guide you through the process successfully.

Substrate Preparation

The condition of the bitumen surface is crucial. Remove any loose or damaged sections. Smooth out irregularities using a power sander or grinder. Ensure the bitumen is clean and dry before proceeding.

Moisture Control

Bitumen can act as a moisture barrier; however, additional precautions are necessary. Install a moisture membrane barrier between the bitumen and the subfloor to prevent moisture penetration from below. Also, acclimate the wood flooring planks to the room's environment for several days before installation to minimize expansion or contraction due to moisture changes.

Adhesive Selection

Choosing the right adhesive is essential. Water-based adhesives are suitable, as they form a strong bond with both bitumen and wood. Choose a high-quality adhesive specifically designed for subfloor applications and follow the manufacturer's instructions carefully.

Installation Technique

Use a notched trowel to apply a thin, even layer of adhesive onto the bitumen surface. Begin laying the wood flooring planks from the center of the room and work outwards. Stagger the joints between rows for strength and stability. Press the planks firmly into place and ensure they are level.

Expansion Gaps

Allow for expansion gaps around the perimeter of the room to accommodate seasonal changes in the wood flooring. Use spacers or precut strips to maintain consistent gaps of approximately 6-8mm wide. These gaps will allow the flooring to expand and contract without buckling or cracking.

Finishing Touches

Once the wood flooring is installed, sand it lightly to remove any adhesive residue or imperfections. Apply a wood filler to fill any gaps or nail holes. Stain or finish the flooring according to your desired color and protection level. Ensure the finish is compatible with the adhesive and wood species you have used.

Following these essential aspects will help you achieve a professional-looking and long-lasting wood floor installation over bitumen. Remember to consult with a qualified flooring specialist if you have any doubts or require assistance.