The mesh cloth shall not be pressed too deep, and the mesh cloth can be basically pressed into the mortar.
Plastering of exterior wall · harvesting of exterior wall door and window openings · thickness of closing protruding from the wall at the top of windowsill meets the requirements of thermal insulation construction · all electric boxes shall be embedded in place before the construction of exterior wall 2.
The thermal insulation board shall be pasted with EPS board with a length of 1200mm and a width of 600mm, and the width of the surrounding adhesive shall be controlled within 50 ~ 80mm.
4.
The internal and external corners are staggered, tightly spliced and beautiful.
Internal and external corners are reinforced with grid cloth· The internal and external corner grids shall be overlapped and strengthened with a thickness of 150mm.
3.
Plastering the second layer of plastering mortar: after the first layer of plastering mortar is set, apply another layer of plastering mortar with a thickness of 1 ~ 2mm, which is suitable to completely cover the grid cloth and slightly see the outline of the grid cloth· Paste the reinforced grid cloth (300mm long and 200mm wide) around the door and window openings · cut the grid cloth in advance according to the length of the wall · plaster 2mm thick anti crack mortar and press the grid cloth · press the grid cloth into the anti crack mortar from the middle to all around with a trowel · the effect after the first anti crack mortar survives · plaster the anti crack mortar of the surface course after the first anti crack mortar is set, with a thickness of 1 ~ 2mm to completely cover the grid cloth The outline of grid cloth should be seen slightly; The surface mortar shall not be kneaded constantly to avoid hollowing · the effect after the survival of the second anti crack mortar · the key points of the process control after the survival of the second anti crack mortar 1.
The EPS board at the four corners of the door and window opening shall be cut into “L” shape by the whole EPS board for paving, and splicing is not allowed.
Eight circular bonding points are set in the plate, with the diameter controlled at 100 ~ 140mm, to ensure that the bonding area is not less than 40% of the stupid plate area.
Do a good job in the interspersed process to ensure the normal construction of the insulation board· The drainage riser at the internal corner shall be installed after the insulation construction is completed.
2.
The length of single grid cloth shall not be greater than 6m.
The distance between the joint and the four corners of the opening shall not be less than 200mm· Arrangement of external corners and openings: the external wall insulation board shall be pasted from the external corner to the internal corner, and a through line shall be hung at the external corner to ensure the perpendicularity of the external corner; Staggered splicing of bulky boards on both sides of the external corner · staggered splicing of bulky boards at the internal corner · pasting of L-shaped EPS board at the door and window opening · dense construction of insulation board at the support of drainage riser · PVC pipe shall be sleeved within the thickness of insulation board · after the construction of insulation board, the support of water supply pipe shall be intact · it is strictly prohibited to bury wire box after thermal insulation or coating construction is completed · the thickness of insulation board construction shall be reserved when the wire box is embedded, Ensure that the junction box is flat, the insulation board surface and the insulation layer construction will reserve the position with waterproof requirements · the appearance quality of the insulation layer construction · the edge closing and forming quality of the door and window opening 4.
The reserved position for thermal insulation construction shall be accurate and regular, so as to facilitate post repair.
Interpretation of process flow 1.
For the anti crack mortar construction, lay a layer of reinforcing mesh at the four corners of the door and window opening along the 45 ° direction, and the specification of the reinforcing mesh is 200mm × 300mm。 Plaster the first layer of plastering mortar on the surface of polystyrene board, with a thickness of about 2mm.
5.
A row of air holes shall be reserved at the surrounding adhesive, and the adhesive width shall be controlled at 50 ~ 80mm; The diameter of the circular bonding point in the plate shall be controlled at 100 ~ 140mm.
6.
A row of air holes are reserved at the adhesive around the EPS board to eliminate the air generated during the bonding of EPS board and the gas generated during the curing of adhesive· The bonding area shall not be less than 40% of the stupid plate area.
At the corner of the wall, the dimensions shall be arranged first, the EPS board shall be cut to make it vertically staggered, and the perpendicularity of the wall corner shall be ensured.
Installation works shall be inserted into construction · installation of riser on large wall, installation of riser support at internal corners, and the riser shall be installed after the construction of thermal insulation layer (so as not to affect the thermal insulation construction) ·The water supply pipe support of the living balcony shall be installed before the thermal insulation construction.
The EPS plate shall be laid horizontally from bottom to top to ensure continuous combination, and the upper and lower rows of EPS plates shall be staggered by 1 / 2 of the plate length.
Paving grid cloth: after tightening the grid cloth, paste it on the bottom plastering mortar, press the grid cloth into the surface of the mortar from the middle to all around with a trowel, level and compact it, and it is strictly prohibited to wrinkle the grid cloth.
Install the junction box and wall bushing accurately.
3.
In case of overlapping in paving, the overlapping length requirements of transverse 100mm and longitudinal 100mm must be met.
Strictly control the bonding area not less than 40% of the EPS board area.
