Is plastic sheeting a viable solution for roofing.

[tapaza]

Our craftsmen installed new ducts for the kitchen fan and placed a new outlet/chimney on the roof. Around the outlet, there is a sheet metal, but there is a gap between the sheet metal and the roof tiles where they have placed some form of plastic/rubber sheet. Is this a customary/acceptable solution? It seems like it is also "tilted backward" under the tiles.

 

[Tosse]

The fact that dirt has accumulated on the canvas indicates that it doesn't slope enough. It seems like puddles are forming.

Then it’s soft-sealed. Expect that seal to last at most 10 years.

Poor solution. I suggest you ask them to bring a tinsmith or alternatively deduct the cost for a tinsmith that you bring in.

 

[KnockOnWood]

The top of the sheet metal should normally go under the upper roof tiles, so water doesn't run down underneath. Then you have a "duk" underneath, as a second security measure, to handle water that might come in under the sheet and tiles.

PS
Always nice when the photographer's shadow is included in the picture

 

[Peter_Henry]

Looks like Monier's Wakaflex, which is a replacement for where lead was used before, a completely okay solution but perhaps not entirely optimal. It is a standard hood that has been installed, and then it is difficult to complement for the tinsmith, in that case, he has to manufacture the hood according to how the tiles are laid, and there it is more detailed what you have agreed on in the project. Regarding the backward slope, it is difficult because it looks like a very flat roof, and the tiles make the hood sit fairly high, I personally think there's no danger.

 

[tapaza]

Thank you for all the answers. I think I'll have to try to get a tinsmith here who can look over the case. Unfortunately, I haven't arranged anything with my craftsmen but have relied on their knowledge. Do you think "half" roof tiles cannot be used to fill the space?