What is the national requirement for the smoothness of house plastering?

The national requirement for plastering houses is smoothness: the hollowed-out area of plastered wall surface is 100_ 100mm, and there shall be no cracks on the wall surface. The verticality of the wall is ≤4mm, the flatness is ≤4mm, the deviation of the angle of yin and yang is ≤4mm, the deviation of the square width is+10mm, the clear height is+20mm, and the size of the interior door of the hole is+5 mm.

1, verticality of facade. Allowable deviation: 4 mm for ordinary plastering; Advanced plastering is 3 mm. Inspection method: check with 2m vertical measuring ruler.

2. Surface smoothness. Allowable deviation: 4 mm for ordinary plastering; Advanced plastering is 3 mm. Inspection method: use 2m guiding rule and feeler gauge to check.

3. The angle of Yin and Yang is square. Allowable deviation: 4 mm for ordinary plastering; Advanced plastering is 3 mm Inspection method: check with right-angle measuring ruler.

4, frame strip (seam) straightness. Allowable deviation: 4 mm for ordinary plastering; Advanced plastering is 3 mm Inspection method: pull the line 5m, if it is less than 5m, pull it, and check it with a steel ruler.

5, dado, leg straightness. Allowable deviation: 4 mm for ordinary plastering; Advanced plastering is 3 mm Inspection method: pull the line 5m, if it is less than 5m, pull it, and check it with a steel ruler.

Allowable deviation of wall plastering: the allowable deviation of verticality of facade is 4mm, the allowable deviation of surface flatness is 4 mm, and the angle of yin and yang should be square, and the allowable deviation is 4 mm.

Extended data:

Exterior wall plastering smoothness requirements, the appearance of the wall, check the wall for color difference, cracking, peeling, spots and other phenomena, or rust spots and other quality problems. The verticality and flatness of the wall. For the verticality and flatness of the wall, Sammy does this: First, check the verticality of all the yin-yang angles with the square ruler of yin and yang, and the deviation of the yin-yang angles shall not exceed 3 mm according to the national requirements.

Secondly, check the flatness and levelness of the wall with a 2-meter guide rule and feeler gauge, and the deviation required by the national standard is not more than 3 mm. Allowable deviation of wall plastering: the allowable deviation of verticality of facade is 4 mm, the allowable deviation of surface flatness is 4 mm, and the angle of yin and yang should be square, and the allowable deviation is 4 mm.

Cengong county government net-house acceptance standard