China Suppliers Factory PVC ASA Gutter Flashing Board for Roofing - Efficient Rainwater Management Solution
| Product Name | Gutter board |
| Material | 1. Sodium silicate + Nano calcium; 2. ASA PVC |
| Size | Effective length 800mm |
| Thickness | 2.0mm - 3.0mm |
| Service life | 20 years - 50 years |
During installation, it is necessary to ensure that the gutter board has a certain drainage slope, generally 0.5%-1%, so that rainwater can flow smoothly to the drain outlet.
The connection between the gutter boards and the roof structure must be firm to prevent leakage and displacement. Common connection methods include welding, bolt connection, rivet connection, etc.
The junction between the gutter board and the roof, the connection between the boards and the drain outlet, etc., should be waterproofed with waterproof membranes, sealants, etc. to prevent rainwater leakage.
Our gutter boards are available in two primary high-quality material compositions: Sodium silicate combined with Nano calcium, and ASA PVC.
Depending on the specific material choice and environmental conditions, the service life ranges from 20 years up to 50 years.
The gutter boards feature an effective length of 800mm, with thickness options ranging from 2.0mm to 3.0mm to meet different structural requirements.
To ensure smooth rainwater flow toward the drain outlet, it is necessary to maintain a drainage slope of 0.5% to 1% during installation.
The connection must be firm to prevent leakage and displacement. Common and secure connection methods include welding, bolt connections, or rivet connections.
You should thoroughly apply waterproofing measures at critical areas, such as the junction between the gutter board and the roof, the connections between boards, and the drain outlets, using waterproof membranes and quality sealants.



