Introduction to the construction scheme of interior and exterior wall coatings?

How to ensure the smooth development of exterior wall construction with architectural coatings in the construction scheme of construction enterprises at this stage, and what are the main construction technologies? The following is the basic content of the construction scheme of decorative coating exterior wall of Bian Xiaozhongda Consulting Company:

Exterior wall paint is used to paint the facade of the building, so the most important thing is to prevent ultraviolet rays. Not only should it not change color after long-term irradiation, but its exterior wall coating also has water resistance and self-cleaning.

In order to facilitate the staff of construction enterprises to understand the construction scheme of exterior wall coatings and sort out relevant materials, the main contents of the construction scheme of construction enterprises include: (1) project overview (2) construction management network (3) process flow (4) construction scheme list (5) quality assurance and acceptance criteria (6) safety production and labor protection measures (7) emergency plan for safety accidents and other related contents.

In view of the paint exterior wall construction, the preparation work of the construction enterprise is very important, and the main construction preparations are as follows:

① Requirements for base materials: the plastering of the base course has been completed and maintained for about 20 days, the alkaline PH value of the base course is below 9, the base course has been dried (at least 15 days) and the humidity is below 8%; The surface of the grass-roots level is smooth, the angle of yin and yang is dense and distinct; There are no structural problems such as water seepage, cracks, hollowing and bubbles on the wall surface. No loose powder, no oil, grease and other adhesion.

(2) Waterproof and airtight treatment has been made for the reserved joints of external walls.

(3) The paint used has the factory certificate and meets the requirements of relevant national codes and standards through inspection.

(4) The paint used is approved by the owner, and the model wall is approved by the owner, supervisor and design unit.

⑤ Decorative scaffolding has been set up.

⑥ Exposed iron parts at the grass-roots level have been treated with corresponding antirust treatment (galvanized or brushed with antirust paint.

⑦ Construction conditions: Because the exterior wall coating is water-based, it requires higher construction and maintenance conditions. Construction and maintenance require that the temperature be higher than 5℃ and the ambient humidity be lower than 85% to ensure good film formation. Low temperature will cause problems such as powdering and cracking of paint film, and the paint film will not dry for a long time due to environmental humidity, which will eventually lead to poor film formation. Weather factors must be considered in the construction of external walls. It doesn't rain 12 hours before painting, so as to ensure that the base is dry. It can't rain for 24 hours after painting to avoid the paint film being washed away by rain.

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