Roof Waterproofing Maintenance Project for the Aircraft Operations Support Center
AVIC General Aviation Southern China Aircraft Industry Co., Ltd. | TPO waterproofing overall renovation of the aviation training center main & annex building roofs
This project is located in Zhuhai City, Guangdong Province, systematically treating hazards such as leakage, waterproof-layer aging and node failure on the existing roof of the aircraft operations support center. It covers cleaning and renovation of the original waterproof layer, reinforcement of roof-penetrating pipes and gutters, and construction and ponding test of the new waterproof layer. Roof waterproofing accommodates low-impact work requirements, setting high standards for process organization and safety protection.
Safety Measures
- Hot-work control: hot-air welding away from combustibles, sufficient fire equipment on site, hot-work permits with dedicated watch.
- High-altitude protection: roof workers must wear helmets, safety ropes, anti-slip shoes; guardrails at roof edges.
- Clean site management: materials sorted and neatly stacked, waste cleared promptly.
- Bad-weather stop: no TPO work in rain, snow, fog or wind ≥ level 5; no work when substrate moisture exceeds limit.
- Site enclosure & warning: safety signs, no unauthorized personnel in work area.
- Emergency plan: emergency team led by project manager, fire/electric-shock/fall equipment.
Construction Flow
- Substrate repair & leveling — chisel weathered/delaminated substrate, repair with anti-crack mortar.
- Primer coating — evenly spray/brush special primer, dry before membrane.
- Membrane pre-lay & adhesive flash — unfold TPO 15–20 min, work low to high, brush adhesive.
- Full-adhesion laying & air exhaust — adhere membrane to substrate, roll to exhaust air, firm bond.
- Hot-air welding seal — automatic welder for field, manual for details, lap ≥80 mm.
- Detail reinforcement — additional layers at corners, pipe roots, gutters, flashing, eaves.
Main Materials & Process Parameters
| Material / Process | Spec / Model | Application |
|---|---|---|
| TPO waterproof membrane | 1.5 mm, FS2 | Roof main waterproof layer full-adhesion |
| Special adhesive | TPO compatible | Membrane to concrete substrate bonding |
| Primer | TPO compatible | Substrate surface pre-treatment |
| Fixing screw / batten | Stainless / U-batten | Field mechanical fixing & pipe-root reinforcement |
| Silicone sealant | Weather-resistant | Finishing, pipe roots & detail sealing |
| Homogeneous TPO | Homogeneous type | Roof-penetrating pipe & node additional layer |
On-site Gallery
Project Highlights
- 1.5 mm TPO full-adhesion, durable system
- Low-impact work, minimal disruption
- Automatic + manual welding, full welds
- Special additional layers at key nodes
- Strict hot-work & high-altitude protection; zero accidents
- Flat, uniform roof; waterproof meets code
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