The fire resistance limit of fireproof glass window is:

Class a window shall not be less than 1.2 hours

Class B window shall not be less than 0.9 hours

Class C window shall not be less than 0.6 hours.

(1) The window frame structure shall be steel structure or wood structure with certain strength to ensure the integrity and stability of components.

(2) The filling materials inside the steel and wood structures shall be non combustible materials.

(3) Fireproof glass windows can be products that do not affect the fire resistance function of fireproof windows and pass the test. The light transmittance of the glass shall not be less than 75% of the general flat glass with the same number of layers.

(4) The sealing material between the structure and the fireproof glass shall be flame retardant material, which can play the role of fire prevention and smoke separation in case of fire.

(5) The hardware fittings shall be the qualified finalized supporting products.

Equipment requirements:

(1) It is necessary to check the fireproof window before the equipment. If the window frame and sash are warped, deformed and the glass is damaged due to careless transportation and storage, the equipment can be carried out only after correction.

(2) When installing fireproof window equipment, level it with a level ruler or use the hanging line method to correct the verticality of front, rear, left and right, so as to ensure the same horizontal, vertical and concave convex.

(3) It is necessary to integrate the window frame with the building, and select wood or iron parts to connect with the wall. It is necessary to irrigate cement mortar between the rear window frame and the wall of steel window frame equipment and maintain it for more than 24 hours before it can be used normally.

(4) The orientation of hardware fittings and equipment holes shall be accurate, so that the hardware fittings can make the equipment flat, solid and reach the application requirements.

(5) For fireproof glass equipment, the joints on four sides must be uniform. After positioning, fill the gaps on four sides with fireproof cotton, and then seal the edge sealing strip.

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