Rock wool composite board installation matters needing attention

The installation of rock wool composite board generally adopts movable scaffolding. In order to ensure the carrying capacity of the scaffold during construction, it should also be considered: the distance between the color steel curtain wall and the working surface and the axis; the distance and position of the control point can be found out by comparing the reference curtain wall. Pay attention to its popularity; find out the installation angle distance from the reference curtain wall; the height difference from the control elevation; the vertical distance from the building and the distance from each floor.

The use of weather-resistant glue: while fixing the edge plate and the water baffle, it is necessary to seal with weather-resistant glue to prevent gas infiltration and rainwater leakage. The following points should be paid attention to when injecting weather-resistant glue for joint filling: clean up the impurities in the gap between the boards to ensure that the bonding surface is clean; in order to adjust the depth of the joint and prevent the three sides from sticking glue, fill the joint with polyvinyl chloride foam after glue injection. Smooth glue seams and wipe off excess glue; pay attention to maintenance after glue injection. Do not dust or scratch the glue until it has completely hardened.

Before the construction of rock wool composite board roof or floor, the panel shall be arranged, additional reinforcement and embedded parts shall be configured according to the design requirements, and sandwich panel joints shall be placed at the support. The principle of plastering is required to ensure that the structure is not deformed, and the surface of the rock wool composite board is required to be flat, and there is no arching or bending phenomenon. Prefabricated rock wool composite board roof or floor shall be manufactured in a special factory. Prefabricated panels can only be transported if they reach 80% of the design strength. Transport and stacking should be supported smoothly and placed vertically. Special equipment shall be used for hoisting, and the plate shall be filled with slurry, which must be full and evenly stressed. After passing the inspection and acceptance, it is allowed to fill, pour or spread the overall surface layer.

Three major problems in the construction of external wall rock wool board

Exterior wall rock wool board is widely used in construction, mainly because of its very good function, both heat preservation and fire prevention. Huaneng rock wool board small make up to tell you about the construction of exterior wall rock wool board. What problems will exist.

1. The main responsible unit does not pay enough attention to the external wall insulation project of the building

Because the building energy saving to a certain extent, the safety of the main structure of the building is not affected, increased the cost of the project, so the five main responsible units of building energy management attention is not enough, often modify the construction drawings and construction plans at will, the construction quality is low.

2, design and actual construction out of touch, it is difficult to scientifically guide the construction

Due to the short promotion and application time of external wall insulation technology, the relevant designers did not accurately grasp the energy-saving design specifications and skillfully use the external wall insulation construction technology, resulting in the disconnection between the design and the external wall insulation construction. It is difficult to carry out construction work effectively.

3. Inadequate supervision of material market

Exterior wall rock wool board is the key factor to ensure the quality of thermal insulation project. Generally, the influence of thermal insulation materials on the quality of external wall thermal insulation engineering has the following aspects:

First, the quality of the external insulation glue is not up to standard, resulting in cracking and falling off of the insulation system. Secondly, the selection of the insulation board density is relatively low, the aging time is relatively short, so the outer insulation board is easy to deform, resulting in poor impact resistance, so that the outer insulation layer cracking, cavity. 3. plaster layer generally uses glass fiber mesh cloth and steel wire mesh. Due to the poor quality of the glass fiber mesh and the long-term corrosion effect of cement alkalinity, the impact resistance and alkali resistance of the plastering layer will be reduced.