How much does it cost to paint an exterior wall per square meter? Home decoration lecture hall: The pass rate of exterior wall paint is 75%

Using the judgment method to define, let A~B be a wall. If the A~B wall line can cut the relevant enclosure structure, it is an interior wall, otherwise it is an exterior wall. From an architectural point of view, the component that encloses a building and forms the boundary between indoors and outdoors is called an exterior wall. Its functions include: bearing a certain load, blocking wind and rain, thermal insulation, noise prevention, fire safety, etc. Wall plastering refers to the surface layer project of applying cement mortar, white ash mortar, and mixed mortar to the wall. Exterior wall plastering is an important step in exterior wall construction. So, how to plaster exterior walls? How much does exterior wall painting cost per square meter? I believe this is one of the topics worthy of attention for friends who are facing renovation. Below we will reveal the answers to the question of how much does it cost to paint an exterior wall per square meter?

Exterior wall plastering construction plan

1. Base layer treatment: The surface of the base layer should be kept smooth and clean, free of laitance and oil stains, and the concrete beams, columns, etc. protruding from the wall should be removed. The recessed areas should be brushed in advance, soaked with water, and then filled in layers with 1:3 cement mortar. Bolt holes and scaffolding eyes should be sealed with foaming agent. Smooth concrete surfaces are roughened.

2. Find the rules for hanging vertically and squarely: hang vertically and sky-and-ground lines at corners, stacks, walls, etc. of doors and windows respectively. Because the exterior wall is from the ground to the cornice, the plastering area is large, and the doors and windows are , balconies, waistlines, pillars and other viewing surfaces must be horizontal and vertical, and the plastering operation must be done in one step and then down.

Therefore, when plastering exterior walls, vertical wires from top to bottom should be hung at the four corners (for multi-story and high-rise buildings, steel wires should be hung down). Then, according to the roughly determined thickness of the plaster, pop up control lines on both sides of the big corner at each step, then pull the horizontal pass, and pop up the horizontal line to make a marking block. Make a marking block vertically at each step, and then make the standard ribs. Set the square plaster cake, press the cake to fill the ribs, and pop up the plaster layer control line on the wall.

3. Apply primer: Before plastering, shovel off the mortar on the surface of the brick wall and water it overnight. When watering, wash away the dust on the surface of the brick wall until it is thoroughly watered. Because the local thickness exceeds 20mm when scraping, it must be layered to survive. The thickness of the first scraping should be controlled within 20mm and pressed firmly to prevent the scraping from falling off. The second scraping should be done the next day. Smooth the rough base and the first layer of gray cake with a wooden crab.

4. Apply the second coat of ash: 6_thick 1:0.2:2.5 cement lime plaster mortar (mixed with polypropylene anti-cracking fiber, the dosage is 1.0kg/cubic meter). It should be smoothed and straightened in layers, rubbed with a wooden trowel, marked with lines or smoothed and swept.

5. Gluing grid strips: Carry out after the second coat of plastering. The dividing bars use finished plastic dividing bars; the specification is 20_width×4_height. Soak the partitions in water before use. This will not only facilitate the application but also prevent deformation of the partitions. Divide the dimensions of the partitions according to the length of the partitions, and then use an iron trowel to apply plain cement slurry to the partitions. On the back, the horizontal grid lines should be attached to the lower opening of the horizontal lines for easy observation. After pasting a horizontal dividing strip, use a ruler to check its flatness, and apply cement slurry on both sides of the dividing strip to form a figure-eight bevel (if it is a horizontal line, the lower edge should be wiped first).

6. Apply the third coat of ash: 1:0.2:2.5 cement lime plaster mortar (mixed with polypropylene anti-crack fiber, the dosage is 1.0kg/cubic meter). First scrape a thin layer of plain cement paste to make it adhere firmly to the bottom ash, then apply the layer of ash and ash cake, smooth it with grid strips, and scrape it horizontally and vertically with a scraper, rub it with a wooden trowel, and compact it with an iron trowel. , smoothing and rubbing hair.

7. Plastered ash: The mix ratio is: cement:sand=1:2.5. The bottom ash should be watered before wiping the ash, and the amount of water should be appropriate. If the wall is too wet, the ash will easily flow; if the bottom ash is too dry, it will be difficult to operate and the hair will be pulled unevenly.

8. Drip channels: The inner window sill is 20mm higher than the outer window sill, and the outer window sill forms a drainage slope of 6%; drip channels should be built under the exterior wall window sills, window lintels, awnings, roofs, balconies and protruding waistlines. , the depth and width of the drip groove are 10 mm x depth 8 mm, and are uniform.

How much does it cost to paint exterior walls in Beijing per square meter?

In Beijing, the price of wall painting is roughly divided into 4 categories. The first category is to paint walls with plaster, and the contract price is 24 yuan/square; The second type of plastering and wall painting costs 30 yuan/square (work and materials are included); the third type is painting, and the cost of painting is 5 yuan/square; the fourth type is wall painting with engineering paint, which costs 6 yuan/square (work and materials are included) . Since the quotations of each decoration company are different, the price will be between (1) Sankeshu wall paint

The price of Sankeshu Fresh Breath is about 38 yuan/_, labor and materials are included, and it is suitable for high-end families , office building decoration.

The price of Sankeshu Children’s Health Treasure is about 32 yuan/_, and the labor-intensive materials are suitable for homes and offices.

The price of Sankees engineering paint is about 6.5 yuan/_, and the materials are included. It is suitable for workshops, warehouses, and parking lots.

The price of Sankeshu’s anti-odor and anti-mold products is about 21 yuan/_, labor and materials are included, and it is suitable for homes, office buildings, and schools.

(2) Full range of Nippon Paint wall paint

The price of Nippon Paint Shishili is about 10 yuan/_, labor and materials are included, and it is suitable for workshops, warehouses, and parking lots.

The price of Nippon Paint Clean Odor 120 is about 21 yuan/_, labor and materials are included, and it is suitable for homes, office buildings, shopping malls, and schools.

The price of Nippon Paint Meideli is about 15 yuan/_, labor and materials are included, and it is suitable for rental houses, offices, and supermarkets.

The price of Nippon Paint bamboo charcoal deodorizer is about 38 yuan/_, labor and materials are included, and it is suitable for high-end home decoration.

(3) Full range of Dulux wall paint

The price of Dulux Beauty is about 10 yuan/_, labor and materials are included, and it is suitable for workshops, warehouses, and parking lots.

The price of Dulux Anti-Formaldehyde 5-in-1 is about 38 yuan/_, labor and materials are included, and it is suitable for homes and offices.

The price of Dulux Home Safety without additives is about 22 yuan/_, including labor and materials, and is suitable for homes, office buildings, shopping malls, and schools.

The labor fee is very high. If you only do it once, the price will not be very expensive. Putty costs 10-18 yuan/square meter, including two coats of putty to remove dust, sanding, and two coats of latex paint. The price of labor and materials, latex paint is a mid-level paint between 200-300 yuan, and labor only is 5-8 yuan/square meter. The cost of shoveling the wall is 5~7 yuan/square meter, and the cost of dust removal including materials is about 28 yuan/square meter. The daily cost for large-scale joint projects is 160 yuan, and for small jobs, it is 120 yuan. If the labor and materials are contracted, for better ones, the budget can be 40 yuan/square meter of wall. However, it may be difficult for the owner to control the quality of the materials used for contract work and materials. The advantage is that it saves some steps and can be completed in one go. Cleaning (shoveling the wall twice, scraping putty and painting twice) is 20.00 yuan/square meter, painting a second-hand house and repairing the old house are 4-7 yuan/square meter (paint not included).

Note: This price is for reference only! Due to different regions, of course prices will also vary. For more relevant price details, please refer to the local dealer!

Editor’s summary: The above is the relevant introduction of the Home Decoration Lecture Hall on how much does exterior wall painting cost per square meter: the passing rate of exterior wall paint is 75%. I hope it can help friends who have needs in this regard! If you want to know more relevant information, please continue to pay attention to our website, more exciting content will be presented in the future.

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