What must be made on the lower part of the outer edge of the awning?

Waterproof eaves or drip channels must be made at the lower part of the outer edge of the awning to prevent rainwater from flowing into the middle of the awning. The top surface of the awning can be laid with a rolling waterproof layer or plastered with 20mm thick waterproof mortar for waterproofing treatment. The waterproof layer should rise along the vertical wall with a height of not less than 200mm. At the same time, a drip groove or dripping water should be made on the lower edge of the awning board. The sharp angle prevents rainwater from flowing along the bottom of the board. In addition, the top surface of the awning should be set with a drainage slope of not less than 1%, and drainage pipes should be set up on one or both sides of the awning to drain rainwater. To meet the needs of the facade, rainwater can be drained away centrally from the rainwater pipes near the awning. At this time, a water retaining sill needs to be made on the upper edge of the awning.