Key points of construction of external wall insulation rock wool board.

     1. Openings for doors and windows
     Before applying the insulation slurry, it is necessary to fill the door and window openings with foamed polyurethane or other objects to seal the window frames and walls, and apply a small arc to the surface with cement mortar. When pasting a large area of rock wool board, you should fold it on the narrow mesh cloth at the end of the window, and overlap the overlapping mesh cloth with the large area mesh cloth. When the window side expands, it is necessary to apply vitrified microbead inorganic thermal insulation mortar, and the thickness of the thermal insulation layer must not be less than 20mm to prevent the occurrence of local thermal bridges. When constructing the insulation layer on the door and window side, a certain slope must be made on the lower window sill to facilitate the dispersion of water. The finished drip line should be installed on the window to prevent rainwater from polluting the wall surface. The corner formed by the side edge of the window opening and the large wall should be inclined with a corner bar.
     2. Treatment of deformation joints on external walls
     The deformation joints of the bottom wall structure mainly include expansion joints and settlement joints. The external insulation system should be disconnected at the deformation joint. This external wall insulation rock wool board at this place should be pasted with a narrow standard mesh cloth. Polyethylene foam is used as a thermal insulation material in the expansion joint, and the surface is made of weather-resistant silicone sealant; the settlement joint is set on the metal cover according to the width and position of the gap, and fixed with nails or screws.
     3.Construction of dual wall
     The retaining wall must be covered with an all-in-one insulating material. The top and sides are made of waterproof materials with good waterproof performance. The top of the retaining wall should be equipped with a technical cover, and it needs to be inclined inward to a certain slope, which is convenient for the dispersion of water.
     Above is the introduction of key points of construction of external wall insulation rock wool board. Hope this can bring you some help.