Insulation system is divided into five major systems
(1) EPS board thin plastering exterior insulation system; (2) EPS mortar thin plaster; (3) cast-in-place concrete EPS exterior wall insulation; (4) cast-in-place steel wire grid EPS exterior insulation; (5) Mechanically fixed EPS external wall insulation.
â— The normal service life of the external insulation system should be no less than 25 years (national standard)
â— Advantages of EPS board thin plastering exterior insulation system (1) High energy saving efficiency; (2) Elimination of wall temperature gradient; (3) No thermal bridge.
â— EPS board thin plastering exterior insulation definition: EPS board (ie polystyrene board) is used as insulation material, glass fiber mesh is reinforced, primer material and finish coating are protective layer, and bonding or mechanical fixing is used to protect Exterior insulation system with a layer thickness of less than 6mm.
â— Shield stone exterior insulation system belongs to EPS board thin plastering exterior insulation.
â— The composition of the shield stone external insulation system:
(1) Adhesive layer (2) Polystyrene board (EPS board) 18~22kg/m (3) Wiping layer (4) Glass fiber net (standard net reinforcing net). (6) Finishing layer such as putty paint.
â— Good substrate: The tensile strength of the crucible itself is 1.5Mpa or more, the field drawing is not less than 0.3Mpa, and the bonding interface disengagement area is not more than 50%.
Good substrate condition (1) dry, no frosting, strong enough; (2) no floating ash on the surface, mold release agent residue, material that can not be bonded; (3) good flatness; (4) No water pipes, etc.
How to choose materials for insulation system
(1) EPS board: 18~22kg/m, size requirement, aging time is greater than or equal to 25 days, storage is better;
(2) The alkali resistance of glass fiber mesh is divided into: alkali resistance and alkali resistance
(3) Adhesion of dry mortar to base: tensile bond strength (for cement base) original strength is greater than or equal to 0.6Mpa, and water resistance is greater than or equal to 0.4Mpa.
(4) Adhesion of dry mortar to EPS board: tensile bond strength is greater than or equal to 0.1Mpa and damage interface is on EPS board
(5) mortar operation time 1.5~4.0h
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