5.
After the installation of thermal insulation board, the special bonding material box in the photo and the reserved hole are bonded with the fine aggregate concrete moisture-proof skirting at the bottom of the thermal insulation board.
The special climate characteristics have special requirements for the insulation materials of the project.
The material properties are required for this purpose: (1) insulation board molded polystyrene foam (EPS): thermal conductivity is small, and it absorbs heat and moisture stress.
After completion, the wall interface agent shall be painted to prevent the penetration of air and moisture, so as to effectively ensure the adhesion between materials and ensure the decoration.
(2) Ensure that the external corner lines are straight and bright in the decoration stage, effectively ensure the straightness of the corners, and make the corners more three-dimensional.
3.
Sticking insulation board: stick the cut insulation board sticking surface close to the adhesive cake, and use the top plate device to stick the upper edge of the gypsum board close to the top floor.
Flexible materials are used to embed the joints of the insulation board, and then the surface course is reinforced to ensure that the joints of the insulation board cause thermal expansion and cold contraction due to environmental impact, resulting in hidden dangers of cracking or falling off of the inner wall surface.
Around the door and window openings, the corners and ends of the outer wall, and 100mm away from the top surface and the ground, Full length bonding shall be adopted, and the width shall not be less than 50mm.
Analysis on the benefits of joint filling and reinforcement of caulking paste 1.
Moisture proof node at the bottom of the insulation board: during the pasting process of the insulation board, the distance between the construction bottom is about 10-15cm, which is used for the filling and embedding construction of fine aggregate concrete.
Base course treatment (grinding of concrete wall surface, painting of interface agent) and snapping line positioning around: the wall surface shall be flat and straight.
The base concrete wall needs to be polished to eliminate the surface laitance and grease.
Reduce the problem that the decorative skirting line cannot be fixed and falls off after later delivery; 3.
After the insulation board is pasted, the plastic line corner is set at the external corner.
To ensure the bonding surface of the lap joint and prevent cracking at the joint.
Aluminum film plasterless wall inspection plastered wall inspection brushing wall interface agent 2.
How to construct external wall internal insulation? Live example! This paper exemplifies the interior wall insulation construction process of the project of Shunyuan construction (Group) Co., Ltd.
When cutting each insulation board, the periphery of the panel shall be cut into an acute angle of 65 ° ~ 75 °.
The advantages are as follows: (1) after the insulation is completed, the external corner of the insulation board can be effectively prevented from being damaged in the decoration stage.
The bottom skirting can be used to unify the construction height of wall insulation, which can be processed intensively or in the factory, so as to avoid the use of small material plates in on-site splicing and reduce splicing joints…
Process flow: base course treatment (grinding of concrete wall surface and painting of interface agent) → snapping line and positioning around → preparing special bonding mortar → pasting composite insulation board → inspection and leveling → anchor fixation → caulking with caulking paste and joint reinforcement → plastering caulking paste and leveling → grinding and repair.
Anchor fixation, caulking with caulking paste, joint reinforcement and caulking paste leveling.
The control points of point bonding method are that the bonding area between the board and the base wall shall not be less than 30% of the board area.
3.
While removing the top plate device, support the thermal insulation circumference with the leftover material of the composite board at the bottom, and use the straight edge guiding rule to tamp the surface of the insulation board based on the reference line snapped on the top and the ground to ensure that the board is installed in place, Then adjust and level with a level ruler.
Construction method features 1.
During the construction process, it should be noted that in order to prevent the construction thickness from being too large, the surface is easy to shrink and crack, and the one-time forming is difficult, it needs to be constructed in two times, first fill and compact according to the fine aggregate concrete, and finally use waterproof mortar for secondary polishing and finishing of the surface course.
Special bonding mortar, pasting insulation board, inspection and leveling: use the special adhesive for insulation board to carry out construction by point bonding method.
The engineering principle is: the regional climate and air humidity are very large, and the climate is extremely obvious in summer and winter.
(2) Effectively prevent the water vapor on the ground from adsorbing with the gypsum board after later delivery, resulting in yellowing, moisture and falling off of the coating surface.
Check the squareness of each household according to the requirements of “one household one inspection”, including the plastering free wall surface for aluminum film construction, and the overall flatness deviation shall not be greater than 4mm.
It has certain compressive strength, tensile strength, acid and alkali resistance, and has good service durability.
According to the special climatic conditions, the project department decides to adopt the internal wall insulation construction process in the project construction, which is summarized and shared for your reference.
(3) In the process of decoration, it is very easy to cause the problem that the decorative skirting line is not fixed firmly and easy to leak.
(2) Paper gypsum board: poor moisture resistance, unable to fix heavy jewelry.
Reduce the yellowing, moisture and falling off of the coating surface caused by the bottom of the wall after later delivery; 2.
2.
Even if there is vapor condensation and ice in rare climatic conditions, the structure will not be destroyed and its weight is light.
A 150mm high C20 fine aggregate concrete skirting is set at the bottom of the insulation board.
the area where the project is located has high air humidity and extremely obvious summer and winter climate.
1.
(3) The concrete skirting position can effectively fix the decorative skirting line to prevent the decorative skirting from falling off in the later stage.
Cut a composite board of corresponding size at the window frame, then spread adhesive cakes around the window frame, stick the bonding surface of the thermal insulation board close to the wall, and keep it vertical and horizontal.
4.
The advantages are as follows: (1) isolate the potential quality hazards caused by pollution, damage and water storage in the insulation gypsum board during ground construction.
