Roofing question

[AdaminCymru]

I’ve Recent had an extension and new roof structure. The final balance has not yet been paid and building control cert not yet issued. The builder says the lead work and sealant here is acceptable. BC initially raised it but the builder had apparently reassured him that lead sealant had been used inside the chase and the exterior silicone is just ‘decorative’. He says the lead does not need to be dressed over the tiles as the plaster soakers lap up underneath and up the vertical wall.

 

I’ve removed some of the silicone and theres clearing nothing behind, the lead can be removed with ease. 
 

Is this acceptable? It looks terrible to me

[AdaminCymru]

[Gus Potter]

53 minutes ago, AdaminCymru said:

Is this acceptable? It looks terrible to me

No, it needs to come out and be redone properly. 

 

Some reasons. I won't list them all.

 

1/ The lead is not pinned in.

 

2/ The chase in the masonry is not deep enough.

 

3/ The silicon is not appropriate. 

 

4/ I doubt they have used panitation oil an all sides of the lead.

 

One big thing is that the lower slope (pitch of the roof) looks too shallow for these roof tiles in the photo.. depends if you had the camera off level. This could cause you a very big problem further down the road.

 

BC should not have passed this.. if they did.

 

Hope you get it resolved.

 

 

[AdaminCymru]

18 minutes ago, Gus Potter said:

No, it needs to come out and be redone properly. 

 

Some reasons. I won't list them all.

 

1/ The lead is not pinned in.

 

2/ The chase in the masonry is not deep enough.

 

3/ The silicon is not appropriate. 

 

4/ I doubt they have used panitation oil an all sides of the lead.

 

One big thing is that the lower slope (pitch of the roof) looks too shallow for these roof tiles in the photo.. depends if you had the camera off level. This could cause you a very big problem further down the road.

 

BC should not have passed this.. if they did.

 

Hope you get it resolved.

 

 

Thanks so much for your reply. BC officer is apparently happy with the builders explanation, but I’m not, and certainly not since taking a closer look today. 

[Nickfromwales]

50 minutes ago, AdaminCymru said:

Thanks so much for your reply. BC officer is apparently happy with the builders explanation, but I’m not, and certainly not since taking a closer look today. 

Can you confirm the pitch of the shallow roof?

[AdaminCymru]

22 minutes ago, Nickfromwales said:

Can you confirm the pitch of the shallow roof?

It is between 15-16 degrees and crest planum duo tiles which can go down to 15 degrees.

[Nickfromwales]

1 hour ago, AdaminCymru said:

It is between 15-16 degrees and crest planum duo tiles which can go down to 15 degrees.

Is that particularly exposed to wind-driven rain etc?

[AdaminCymru]

11 hours ago, Nickfromwales said:

Is that particularly exposed to wind-driven rain etc?

Hmm, yes it can get pretty windy / heavy rain is not unusual. So far no leaks and we’ve had some very heavy rain in the past few months