Wuhan Yangtze River New Area glass curtain wall seven-character testing and inspection standards unit, Wuhan curtain wall four-character testing items: air tightness testing of building curtain walls, water tightness testing, wind pressure resistance performance testing, in-plane deformation performance testing, and compatibility testing of silicone structural sealant, etc.

Windows, Doors, and Façades
Steel profile re-inspection: Hot-dip galvanized channels, angle steel, square tubes, etc., for structural members used in glass curtain walls. Detection of mechanical properties including tensile strength, yield strength, elongation at break, zinc coating thickness, and uniformity.
That wraps up the information on door, window, and facade inspection and re-inspection that we've introduced today. We hope it's helpful to you. Door, window, and facade systems are a common form in modern architecture. Conducting inspections on samples and glass materials after installation ensures the quality of the construction work.

Sample Quantity for Re-inspection: For materials requiring re-inspection, at least one batch of samples should be taken from the same manufacturer's same type of incoming materials for re-inspection. If the contract stipulates otherwise, the contract terms shall be followed.

Items requiring on-site experiments:
The field pull test of the rear embedded parts should be conducted with a random sampling method, with the number of samples taken in accordance with the prescribed proportion by the regulations.
2.剥离 test for silicone structural sealant, with a sampling rate of 1 piece per 100 components.
3. If a two-component silicone structural sealant is used, the mixed uniformity (butterfly) test and tensile break (adhesive cup) test should also be conducted. A set of samples of the same type is sufficient.

Batch inspection division:
1. Facades with identical designs, materials, construction methods, and workmanship should be inspected in batches of 500 to 1000 square meters. Any area under 500 square meters should be considered a separate batch. At least one random inspection point should be conducted for every 100 square meters, with each point being no less than 10 square meters in size.
2. Discontinuous curtain wall works within the same unit project shall be separately classified for inspection batches.
3. For irregular or special requirement curtain walls, the division of inspection batches and the number of inspections per batch should be determined through negotiations between the supervisory unit, the construction unit, and the construction contractor, based on the structure, process characteristics, and scale of the curtain wall project.