| 摘要 |
The covering hood (1) has a top (2) and one or more side walls (3, 5). It incorporates support feet (7) and a lower edge (210) in the hood side wall or walls is located at a higher height level than the support plane of the feet. It has an outer surface which is durable to the effect of weather, and at least one carrying hand grip. The covering hood incorporates an insulating layer (12) of plastic material or mineral wool. It is placed over the outlet or well and an air gap (22) is formed between a lower edge (20) in its wall or walls and a roof surface (100) surrounding the roof outlet. It is heat-insulated and stands on its support feet against the roof surface. |
