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Foshan Huiju Decoration Material Co. Ltd.

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China How to Install Fire Rated Gypsum Board Layering Joint Treatment and Inspection
China How to Install Fire Rated Gypsum Board Layering Joint Treatment and Inspection

  1. China How to Install Fire Rated Gypsum Board Layering Joint Treatment and Inspection
  2. China How to Install Fire Rated Gypsum Board Layering Joint Treatment and Inspection
  3. China How to Install Fire Rated Gypsum Board Layering Joint Treatment and Inspection
  4. China How to Install Fire Rated Gypsum Board Layering Joint Treatment and Inspection

How to Install Fire Rated Gypsum Board Layering Joint Treatment and Inspection

  1. MOQ: 500 pcs
  2. Price:
  3. Get Latest Price
Warranty 1 Year
Usage Internal Wall Partition
After-sale Service Online technical support, Onsite Inspection, Free spare parts
Color red
Thickness 12.5mm
Edge Square or Tapered
Packaging Details Our timber packed in pallet or in bulk/Loose packing(pallet is covered with package board and PVC tapes)
Design Style Modern
Regular Size 1220mm*2440mm
Supply Ability 3000000 Meter/Meters per Month
Application indoor, Hotel, Villa, Apartment, Office Building
Material Pure Natural Gypsum
Feature Fire Resistant Plasterboard
Place of Origin Guangdong
Brand Name SUNHOUSE

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  1. Product Details
  2. Company Details

Product Specification

Warranty 1 Year Usage Internal Wall Partition
After-sale Service Online technical support, Onsite Inspection, Free spare parts Color red
Thickness 12.5mm Edge Square or Tapered
Packaging Details Our timber packed in pallet or in bulk/Loose packing(pallet is covered with package board and PVC tapes) Design Style Modern
Regular Size 1220mm*2440mm Supply Ability 3000000 Meter/Meters per Month
Application indoor, Hotel, Villa, Apartment, Office Building Material Pure Natural Gypsum
Feature Fire Resistant Plasterboard Place of Origin Guangdong
Brand Name SUNHOUSE
High Light fire rated gypsum board installationfire resistant plasterboard joint treatmentgypsum board inspection checklist

How to Install Fire Rated Gypsum Board: Layering, Joint Treatment and Inspection Checklist

Correct fire rated gypsum board installation is a discipline of sequence and detail. A tested assembly loses its rating when layers are not staggered, fasteners are under-specified, or perimeter joints are left open — even though the correct board was used.

Step 1 — Confirm the Tested Design Before Starting

Before any panel is fixed, confirm in writing: board type and thickness, number of layers, stud type and spacing, insulation type and density, fastener type and spacing, and joint treatment. The installation must reproduce the design that was tested. Any deviation requires re-approval by the fire engineer, not a verbal agreement on site.

Step 2 — Fix the Base Layer

  • Apply the base layer with joints centred on studs, not aligned with the outer layer.
  • Fastener spacing: typically 150–200 mm at board edges, 300 mm at intermediate supports.
  • Set fastener heads just below the surface without breaking the core.

Step 3 — Apply the Outer Layer

Offset outer-layer joints from base-layer joints by at least one stud space. Do not fasten the outer layer into the same stud line as the adjoining board's edge. On walls, long edges are generally run horizontally in tested designs.

Step 4 — Treat Joints and Perimeter

Embed tape in setting-type compound at every joint. Seal head-of-wall, floor and vertical abutments with the specified firestop system or approved sealant. Head-of-wall detailing is the single most frequently cited defect during inspection.

Pre-Installation Inspection Checklist

Item Acceptance Criteria
Board type and thickness Matches the tested design exactly
Layering Correct number of layers, joints staggered
Fasteners Specified type, length and spacing; heads not over-driven
Cavity insulation Correct material and density, fully fitted
Perimeter and head-of-wall Sealed with the approved firestop system
Joints Taped with setting compound, no gaps

Why These Points Are Emphasised

They come from site inspections, not from theory. Walking contractors through fire inspections on commercial and residential projects, we see the same defects again and again: joints aligned across layers, fasteners over-driven or spaced too widely at edges, perimeter joints left unsealed, and occasionally a substitute board used on one floor because the correct panel ran out. Every one of them invalidated the tested design, and every one was avoidable with a checklist and a submittal review before work started. Installation guidance follows ASTM C840 and GA-216, and where a proprietary listed design applies, its instructions take precedence over general good practice.

We also support as-built documentation — submittals, product data, test reports and inspection records — suitable for handover to the authority having jurisdiction.

Frequently Asked Questions

Can I substitute another brand of the same thickness?

Only if the substituted panel is listed in the same tested assembly. Otherwise the rating is void.

Do joints need to be staggered in a single-layer wall?

Yes. Joints should be offset from adjacent board edges to maintain the integrity of the assembly.

Is firestop required at the top of the wall?

Yes. Head-of-wall joints must be sealed with the specified system to preserve the rating.

What compound should be used at joints?

Setting-type compound with embedded tape, as specified in the tested design.

Request the installation manual, contractor briefing or as-built documentation package for your project.


Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    1993

  • Total Annual:

    20000000-60000000

  • Employee Number:

    50~100

  • Ecer Certification:

    Verified Supplier

About Foshan Huiju One-Stop Ceiling, Flooring and Partition System Supplier Founded in 1993, Foshan Huiju Decoration Material Co. Ltd. has developed into an established supplier of decorative building materials, providing coordinated ceiling, flooring, partition and furniture board solutions for... About Foshan Huiju One-Stop Ceiling, Flooring and Partition System Supplier Founded in 1993, Foshan Huiju Decoration Material Co. Ltd. has developed into an established supplier of decorative building materials, providing coordinated ceiling, flooring, partition and furniture board solutions for...

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  • Foshan Huiju Decoration Material Co. Ltd.
  • Weiye International Building, Yixian Road, Dali Town, Nanhai District, Foshan City
  • https://www.gypsumplasterboards.com/

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