With the extensive application of smoke vent in industrial plants, clients will face many different products with bad or good quality. Smoke vent rooflight has multiple functions such as fire-fighting, smoke exhaust, ventilation, and lighting. Therefore, it is significance of the plant's maintenance, so it is necessary to select high-quality roof smoke vent. 

1. Waterproof method

The waterproof performance of the smoke vent has a great influence on the later use and maintenance of the plant. Therefore, we must understand whether it is structural waterproof or silicone waterproof. Silica gel is a chemical substance, so there is a risk of leakage. Do not recommend to choose this type of smoke ventilator; if it is a structural waterproof roof smoke vent, it is necessary to judge whether it is really only relying on its own structure and whether it can really be drip-proof.

2. Quality

Samples or completed projects are a quick way to measure the quality of smoke ventilation. The sample is prepared by the smoke vents supplier to display to customers. If the samples is bad, the quality of the finished product is difficult to guarantee it's quality; compared with the samples, the completed project can provide more intuitive feedback on the quality of the smoke vent skylights and the installation team's ablibity.