First, the external wall insulation system
In today's world, as the demand for energy conservation and environmental protection continues to increase, the insulation of building envelopes is also growing. China's construction industry is developing rapidly and changing with each passing day. To solve the problem of building heating and cooling, it has long been recognized that thermal insulation materials can be used to reduce the energy consumption of buildings, thereby reducing the cost of thermal energy consumption. Energy-saving starts from the surface of the building, and the wall insulation of the building has various forms: external insulation inside the wall, middle-layer insulation of the outer wall, and outer insulation of the outer wall. The external wall thermal insulation technology system uses a polymer mortar to fix the insulating material polystyrene hard foam board on the outer wall, and can also use the rubber powder, polyphenyl granule moisturizing slurry prefabricated insulation layer, and the high elasticity fiber reinforced polymer, the mortar And a coated mesh glass cloth as a reinforced overlay and an overcoat with an organic or inorganic coating. Compared with the wall without insulation or the wall inside the external wall, the external wall insulation has the advantage that other insulation methods can't match. The external wall insulation technology can form a fully enclosed insulation system with excellent energy-saving insulation effect. It is cool in winter and cool in summer, which greatly reduces carbon dioxide emissions. It can use indoor water vapor to spread and save costs. There is no obvious thermal bridge, and the building damage is greatly reduced due to the temperature difference, which protects the main structure of the building. The diversified design of the building makes the building's cost performance greatly improved, and is especially suitable for the renovation of old buildings without affecting users.
The composition and technical performance of the external thermal insulation system. The external thermal insulation system consists of an interface layer, a protective bottom layer, an insulation layer, a crack-resistant layer, a network cloth layer, and a facing layer. Interfacial layer: The interface mortar is evenly coated on the base wall with the interface agent. Insulation layer: consists of polystyrene board bonded mortar and polystyrene board, or polystyrene pellet insulation slurry. Polystyrene board bonding mortar is a kind of polymer cement series mortar type adhesive, non-toxic, tasteless and non-combustible environmental protection product. It is an important material for exterior insulation of building exterior wall. It is used for bonding polystyrene board and wall surface. It has strong bonding force. The curing time is fast, the bonding surface is quickly strong, and the polystyrene board does not slip and loose and fall, and achieves the desired bonding effect within the required operating time. Anti-cracking insulation layer: Anti-cracking mortar and mesh cloth are used as anti-cracking agent to make protective layer. The anti-cracking mortar is carefully configured with various elastic additives such as high elastic emulsion and flexible fiber, and has stable heat preservation performance and resistance to cracking. It can prevent air, drum and crack. Finishing layer: After scratching the water-resistant putty and applying the waterproof elastic primer, the decorative coating is decorated, and the facing layer mainly prevents the insulation layer from seeping, cracking, freezing and waterproofing.
Second, the external wall insulation construction
The external wall thermal insulation construction method is applicable to high-rise multi-storey buildings. The walls are concrete, hollow bricks, perforated bricks, clay bricks, non-clay bricks, etc., and are also suitable for building engineering transformation. It is an in-situ wall insulation system. Mainly include: elastic primer waterproof layer, polystyrene board insulation layer, anti-cracking mortar fiberglass mesh protective layer and finish layer. The construction procedures include: basic wall treatment; brushing special interface mortar → hanging vertical, sleeve, elastic control line → using insulation slurry for gray cake, making ribs, making mouth → adding metal layering strip, nail belt Shooting nails in the tail hole, wearing galvanized lead wire → wipe the thermal insulation slurry 2 cm → press the steel wire with galvanized lead wire into the surface of the thermal insulation slurry → wipe the 2 cm thermal insulation slurry after 24 hours → divide the grid line, open the grid , door, window, drip sink → wipe cracking mortar → pressure glass fiber mesh cloth → wipe the second cracking mortar → press into the second layer of fiberglass mesh cloth → paint waterproof elastic primer → scrape flexible water resistant Putty → exterior wall coating construction → insulation construction experience.
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