1. Features of solid wood flooring: 1. Pure solid wood natural, 2. Environmental protection, 3. Heat insulation, large conductive resistance, 4. Minimal adjustment of indoor humidity; Disadvantages: 1. Large expansion and contraction coefficient, susceptible to changes in the humidity environment; 2. Compared with three-layer and multi-layer, it is a serious waste of high-quality resources;

Two and three-layer solid wood composite flooring

Features:

1. The structure is made of cross-gluing, with good stability, not easy to expand and contract, and can be used for floor heating;

2. The surface layer is 3-4mm, reaching the service life of 50-100 years;

3. Save high-quality materials, the surface layer is high-grade wood, and the middle and back panels are fast-growing materials;

4. Adhesive is used as the second layer, which is basically natural solid wood;

5. Wooden keel can be used, but the spacing should be close and the floor should be flat;

6. The direct-laying foot feels good;

shortcoming:

1. Use a small amount of adhesive;

2. The spacing between wooden keels should not exceed 10cm (8*1.5cm multi-layer boards can be used to directly order the floor), otherwise the floor is easy to noise;

3. Spare ribs will appear after severe damp;

Three, multi-layer solid wood flooring

Features:

1. Multi-layers, cross-gluing in vertical and horizontal directions, stable specifications and dimensions, and small expansion and contraction coefficients;

2. The surface layer is made of high-quality wood, and 0.6-0.4g/cm³ medium-density fast-growing wood can be used below;

3. The surface layer can be 0.5-4mm surface layer high-quality wood;

4. The service life depends on the thickness of the surface layer, the thinner the surface layer, the shorter the service life;

shortcoming:

1. Compared with solid wood and three-layer structure, the more layers, the more glue is used;

2. The appropriate floor size is 6-15cm, and it is too wide and easy to tile.

Fourth, laminate flooring

Features:

1. The surface layer is wear-resistant paper, the back is balanced paper, and the middle is high-density fiberboard. The cost is low and the market price is cheap;

2. The simulation effect can be;

3. The coefficient of expansion and contraction is small, which has a lot to do with the choice of base material;

shortcoming:

1. The wood powder made of branch wood has a large amount of adhesive and more volatile chemical substances, such as formaldehyde;

2. Non-natural wood, glued with wood powder;

5. Finished wood and floor slabs are affected by moisture content and change:

1. Wood cells are active, swelling when damp, and drying shrinkage are the normal properties of wood;

2. The process and method of drying treatment are critical. The moisture content should be controlled reasonably, and the average moisture content of each city and region should be standardized, and the limit should be three to four degrees down;

3. It is extremely important to control the moisture content during production, storage, transportation, installation and use;

Six, the types of wooden doors

1. Pure solid wood doors

2. Solid wood composite door (1), solid core door (2), medium-density plywood (3), medium-density fiberboard (4), medium-density fir frame (5), medium-density honeycomb paper

3. Facing types: (1), natural veneer (2), melamine paper (3), PVC facing (4), facing plywood (5), stainless steel (6) horizontal pressure plate with wood grain

4. Other doors (1), aluminum alloy (2), stainless steel (3), wood-plastic doors (4), steel doors (5), glass doors (6), wooden fire doors, steel fire doors

Seven, wood veneer

1. Pure natural veneer veneer

a, Medium density is the base material, 12mm, 15mm

b, the multilayer board is the base material

c, the surface is pasted with high-grade veneer, or parquet

d, the surface paint is PU paint

2. Melamine finish 12mm/15mm

8. Various types of flooring, production process control:

A National Standard:

①Solid wood flooring 15036-2009

②Three-layer, multi-layer solid wood composite floor 18103-2001

③Laminate floor 18102-2007

④Sports floor 20239-2006

⑤Man-made board 15104-1994

⑥ Floor installation 20238-2006

⑦ Floor heating wooden floor LY/T1700-2007

1. Comply with national mandatory standard 18580-2001, formaldehyde emission E1 level

2. Control of the moisture content of wood, suitable for the requirements of the area, and dry treatment

3. Control of bonding strength, physical and chemical tests, what kind of glue to use

⑴Polyacetate emulsion glue

⑵Urea-formaldehyde glue

⑶Melamine glue, water resistance and brittleness

⑷Phenolic glue, water resistance, non-brittleness, non-volatile formaldehyde

4. The higher the solid content of the glue, the better the adhesion. 28%-51%

B bonding strength:

1. The glue is based on the formula and the ratio. Various glues need to be based on the ratio provided by the manufacturer

Conduct physical and chemical tests.

2. It is directly related to the temperature of the glue pressing time and press

3. It has a great relationship with the moisture content of wood and affects the bonding strength

4. Health period after gluing. Generally curing in 24 hours, but it takes 3-7 days to stabilize.

C Machining accuracy control

1. The height difference of multi-layer floor

2. The allowable value of the length, thickness and width of the multi-layer floor

3. Long-term stability of permissible errors of tongue and groove matching and maintenance of general accuracy

D Painting section

1. Basic color, color card# keep consistent for a long time

2. Physical index: 1 Adhesion, Abrasion resistance index, Glossiness, batch sampling 1000m2

E packaging shade

1. Separation#

2. Select unqualified products

3. Sampling inspection of the size of the head

4. Sampling inspection of moisture content

5. Changing the width of the board can not be confused. Tongue and groove matching

6. Indicate tree species name, specifications, wire drawing, moisture content, grade, and specifications of each box

F Each full container or vehicle shall be issued with a delivery inspection report, all main indicators, and the product is qualified

The certificate is required for each box.

The business of receiving orders, purchasing, manufacturing, and selling of flooring and complete sets of wooden doors and wood veneers is subject to production, supply, and sales contract review.

Nine, the installation method of all kinds of wooden floors

1. Suspended PE mulch film, direct laying, glue for ground sticking

2. It is directly related to the glue pressing time, press and temperature;

3. It has a great relationship with the moisture content of wood and affects the bonding strength;

4. The curing period after gluing is generally 24 hours to cure, but it takes 3-7 days to stabilize

10. Installation methods of various wooden floors

1. Suspension type: direct PEV mulch film, glue for ground sticking

2. Wooden keel type: (1) Single layer (2) Double layer (3) Elastic cushions for sports venues and combined with specific construction schemes;

11. Conditions available: pre-paving requirements and paving preparations

1. The decoration of the ceiling, wall paint, wall tiles, floor tiles, etc. have been completed, and the floor has been cleaned of garbage. Cross construction is not allowed.

2. Suspended installation requires ground flatness, polished after pouring, 2m ≤ 2mm

3. Adjustable cushion blocks can be used for installation of wooden keel. 2m ≤ 5mm

4. Ground moisture content requirement ≤ 18% wall moisture content ≤ 20%

5. Hidden routes after pre-buried lines and pipelines must be marked: to prevent breakdown and damage during drilling.

6. Toilets, kitchens, and balconies that have water sources need to be waterproofed

7. There are river ponds or pools on the bottom floor, which should be treated with moisture-proof treatment.

8. The ground with a flat and warm ground should be preheated in advance, and the moisture content is below 13%.

9. Those who do not meet the conditions are not allowed to enter the installation. Use the work contact form or the wooden floor construction confirmation sheet to be signed by the owner and the decoration unit to confirm the handover. If the conditions are not met, they are not allowed to enter the installation.

12. Instructions for installing wooden keel

1. The direction of wooden keel and floor laying should be approved by the owner.

2. The moisture content of the paving wood keel is less than or equal to 15%, the specification is not less than 38*25mm, and the hemlock-like larch.

3. The spacing of leveling pads under the wooden keel is less than or equal to 40cm.

4. Wooden keel flatness 2m ≤ 2mm, including longitudinal and transverse

5. The cork for the wooden keel needs to be fixed with double nails

6. Avoid hidden dangers caused by breakdown of water pipes, line pipes, and air pipes.

7. After the wooden keel is laid and qualified, check the electrical wiring, water pipes, air pipes, etc. for hand damage. The wooden floor can only be laid without damage. The wooden keel is a concealed project.

13. Laying of surface floor

1. Strictly control the chromatic aberration and spread it in the same room.

2. Assembling straight line from seam ≤ 0.8mm

3. The height difference is less than or equal to 0.6mm, and no paving is allowed if it exceeds the replacement

4. The distance from the wall around 8-10mm

5. Knock the end of the floor tightly, leaving no gaps

6. There must be no nails on the surface of the wooden floor. There should be no obvious abnormal noise, no scratches.

14. Quality requirements for skirting installation

1. No nails should be used on the front of the skirting line, and the nails should not be exposed in the wall dowels in the grooves.

2. The street spacing of the skirting line ≤ 1mm

3. It should be covered around the floor without exposing the board head or the board side gap.

15. The inspection and delivery will be carried out within two days after the installation is completed, and the owner will sign the order, the installation quality satisfaction form, and issue the floor paving warranty card. The installer should sign the warranty card.

16. The warranty period of the floor: use and maintenance

1. It is not suitable to cover with airtight materials

2. Humidification is required for indoor temperature ≤40℃, ventilation and moisture removal when ≥80℃

3. Avoid direct sunlight

4. Avoid scratches, scratches and acid and alkaline corrosion.

5. Avoid using high-power electric heaters or open flames.

6. Avoid water leakage.

7. Regular essential oil or wax maintenance, once a month.

8. The shelf life is one year.