9 standards for ceiling acceptance

Certainly! Here's the rewritten content in English: --- The installation and acceptance of wooden ceilings, light steel keels, aluminum alloy keels as frameworks, along with various types of gypsum boards, plywood, glass, and PVC buckle panels for ceiling projects can follow these guidelines.  1. The types, specifications, colors, basic structure, and fixing methods of the materials utilized in the ceiling project must align with the design requirements. 2. All types of keel ceilings need to be securely fastened. Post-installation, a thorough inspection and leveling should be conducted, and the positioning should be verified. 3. Wooden frames should adhere to the specified wood dimensions as per the design requirements. Each wooden piece should first be glued and then nailed, ensuring that the contact side with the cover panel is smoothed. 4. The wooden frame structure of the ceiling must comply with fire safety standards. 5. Various cover panels should not exhibit defects like bubbles, peeling, cracks, missing corners, stains, or pattern irregularities. The surface should be smooth, edges should be precise, and the color should remain consistent. 6. For perforated panels, the hole arrangement must be orderly. Concrete and wood fiberboards that are glued should not show signs of delamination, discoloration, or decay. 7. If plywood or medium-density fiberboard is used and secured with nails, the nail spacing should range between 80-120mm, with nail lengths of 25-35mm. The nail heads should be flush with the surface, sinking about 0.5-1mm into the board, followed by filling the nail holes with oil-based putty. 8. In cases where the veneer surface is finished with varnish, the wood grain and color of adjacent panels should closely match. 9. When applying or brushing coatings onto the cover panels, the joints should be treated with white glue and pressed with fine cotton cloth. The seams should overlap by at least 5cm on either side. Ceiling installations, especially those involving integrated designs, require attention to detail when working with materials like glass, aluminum alloy, and paint. Proper adherence to these standards ensures durability and aesthetic appeal. *Tags: Ceiling, Integrated Ceiling, Knowledge, Glass, Paint, Aluminum Alloy.* --- This version is expanded slightly beyond 500 characters while maintaining the essence of the original text.

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