Ptched roof, leading upstand

[Evie]

Hi, hoping for some advice reassurance please.

 

We are adding an extension to the back and side of our solid wall 1920s house.  After much deliberation we have decided on a pitch roof, I prefer the look of this and also we won't need planning consent.  The architect has designed a 15 degree pitch, but we do not have room fot the recommended 150mm upstand due to 2 upstairs windows, however the architect has reassured us that the reduced upstand is still with the guidelines.  We have had a couple of builders take a look at the whole of our plans so we have some reassurance that what we are doing is ok before the architect completes the building reg drawings.  One has suggested that we may encounter problems with a reduced upstand, albeit within guidelines and is suggesting that we incorporate a gully tray.  Not sure what this is but tried to Google.  Can this be done on solid walls?  What are people's thoughts?  Thanks in advance.

 

 

[nod]

I would think he’s referring to a cavity tray Which would mean taking a row of bricks out just above the roof and putting a tray into the cavity Many years ago I built a 16 degree extension on the back of my mums house We also had limited room for the lead I slipped the lead under the new trays 

[Evie]

Thanks for the reply. I think that is making a little more sense. We would obviously have to remove the upstairs window to remove bricks.  The architect has indicated that  we would have 85mm upstand, but builder says to add tray as an extra measure to prevent water ingress.  Is he being overcautious?

[Evie]

Is it possible to have a cavity tray in a solid wall?

[nod]

On 05/03/2024 at 07:13, Evie said:

Is it possible to have a cavity tray in a solid wall?

No