Ever heard of grommets?

If you have not heard, you can collect this hardcore science, someday when you want to decorate home with flooring must be used.

Floor laying process will inevitably be in contact with other surfaces, but where they meet will face the problem of node closure processing.

Please see the following picture, look carefully inside the buckle strip

Most of the time, the average flooring installer can only cut the closure to the following state because of limited skill points.

So there is a "simple and brutal" tool like a buckle, to cover the uneven closure.

The raised indescribable strip as shown in the picture is the buckle strip.

In the market, corresponding to different nodes have flat buckle, right angle buckle, stair buckle, high and low buckle, universal buckle and so on different buckle type. Materials are usually pure solid wood, metal, plastic three. The buckle in the picture is flat buckle is also called T-shaped buckle.

The existence of the buckle is to cover the splicing gap, high and low fall, save construction costs and time costs. But the current construction environment is too dependent on the use of buckles, buckles in the construction of frequent appearances really too ugly.

Let me demonstrate how to reduce or even avoid the use of grommets during flooring installation.

Scenarios of flooring installation with different materials spliced together can be divided into two main categories.

Plane vs. plane

Tile, marble, and threshold stones are all flat materials that commonly meet the floor, and the following factors need to be considered when doing grommet subtraction in these cases.

Reserved height

This is the most important point. You need to make sure that the finished surface of the floor and the finished surface of the adjoining material are kept at the same height before laying the floor.

Designing expansion joints

The floor will expand and contract with environmental changes, and the expansion and contraction is far beyond our imagination, so the floor must be left with expansion joints during installation. Reasonable arrangement of expansion joints becomes a key part of the installation of fastener-free strips.

First let us understand the four major factors affecting the expansion and contraction of the floor.

①Humidity change

If the humidity varies a lot, the range of expansion and contraction is large. Small changes in humidity, the range of expansion and contraction is small. Humidity varies from region to region, like the north, extremely dry in winter. And the south, back to the south of the day and extremely humid.

②Paving span

Laying span is large, the reserved expansion joints should be large; laying span is small, the expansion joints are small. Different floors have corresponding span limits. For example, the span is not more than 7-10 meters in the case of three-layer ordinary installation, and 15-20 meters in the case of multi-layer ordinary installation.

③Flooring type

Solid wood three-layer expands and contracts, while solid wood multi-layer flooring expands and contracts less. The structural properties of multi-layer flooring are more stable than those of three-layer, so the expansion and contraction of the floor is less affected by humidity.

④With floor heating or not

The range of expansion and contraction under floor heating conditions is large, and the range of expansion and contraction under no floor heating conditions is small.

Underfloor heating conditions to lay a large area of three-layer floor, such installation conditions, the expansion and contraction of the floor is the largest. At this time, if the use of the aforementioned way to reserve expansion joints will leave the late-stage floor arching hidden trouble. So here will use a more high-end flooring installation method - full glue store.

Flooring special structural adhesive coated on the ground, the floor and the ground bonded together, greatly reducing the expansion and contraction of the floor, but also to increase the flexibility of the ground.

Installation scenarios that cannot be free of buckle strips

1, when the relatively large span of the ground at both ends of the pair are required to transition, that must be left on one side to do expansion joints.

2、The direction of the house type, special floor covering scheme need to depend on the scheme. The following are several variations of installation without grommets.

There is no transition

Inlaid a thin copper bar for the transition of the division line

Different spelling modeling of flooring for transition

Flooring and flooring thin copper strip transition