The correct solution for Composite deck over concrete: Analysis of the importance of supporting keels

With the popularization of environmental protection concepts and the widespread application of plastic wood materials, more and more families choose to lay Composite decks on indoor and outdoor floors. However, in the process of laying Composite decks, there is a question that often bothers everyone: Can Composite decks be placed directly on concrete floors? This article will answer this question in detail and explore the best laying solution.

1. Can Composite decks be placed directly on concrete floors?

The answer is no. Although the concrete floor is flat and hard, there are the following problems when laying Composite decks directly:

1. Poor air circulation: The Composite deck fits tightly with the concrete floor, which can easily lead to poor air circulation and affect the service life of the Composite deck.

2. Moisture is not easy to dissipate: There is more moisture on the concrete floor. If Composite decks are laid directly, the moisture is not easy to dissipate, which may cause the Composite deck to deform and expand.

3. Uneven ground: Concrete ground may have slight unevenness. If Composite deck is laid directly, it is easy to cause damage to the floor.

2. The best laying solution: support keel + Composite deck

In order to solve the above problems, the best laying solution is to lay support keels on the concrete ground first, and then lay the Composite deck. The following are the specific steps and reasons:

1. The role of support keels

Support keels are important infrastructure for laying Composite decks. Their main functions are as follows:

(1) Ensure the flatness of the ground: Support keels can effectively fill the uneven places on the ground and ensure the flatness of the Composite deck after laying.

(2) Increase air circulation: Support keels create a certain distance between the Composite deck and the ground, which is conducive to air circulation and reduces the risk of Composite deck damage due to excessive moisture.

(3) Disperse pressure: Support keels can disperse the pressure on the Composite deck and extend the service life of the floor.

2. Steps for laying support keels

(1) Clean the floor: Before laying support keels, first clean the concrete floor to ensure that there is no debris, oil stains, etc.

(2) Measure the floor: Measure the length and width of the floor and calculate the number and length of support keels required.

(3) Lay the support keels: According to the measurement results, lay the support keels evenly on the concrete floor, with a spacing of about 30-40 cm.

(4) Fix the support keels: Use expansion bolts to fix the support keels on the concrete floor to ensure stability.

3. Lay the Composite deck

After the support keels are laid, you can start laying the Composite deck. The following are the steps for laying the Composite deck:

(1) Check the support keels: Ensure that the support keels are firm, flat, and not loose.

(2) Lay the Composite deck: Starting from one corner of the room, lay the Composite deck piece by piece on the support keels, paying attention to the uniform gaps.

(3) Fix the Composite deck: Use special nails to fix the Composite deck on the supporting keel to ensure that the floor will not move.

(4) Finishing: After laying, finish the edges to make the overall effect more beautiful.

In short, it is not recommended to lay Composite deck directly on concrete floor. The best solution is to lay the supporting keel first, and then lay the Composite deck. Doing so can not only ensure the service life of the Composite deck, but also improve the flatness and aesthetics of the floor. I hope this article can provide some reference value for your home decoration.

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