Big Jimbo

Do as @Nickfromwales advised. We cant tell if that wall has been built off the B and B, or off the foundations. Spend £30 and have it sorted.

In an ideal world design them out ?

I am aware that they do need to be done up very tight. That is actually quite hard to do. I have known a couple of instances where they have indeed leaked during air testing.

Nah, defo the bloke from PSB

The guy second from the right is defo the bloke who plays keyboards in the Pet Shop Boys

tell your architwat to get lost. No conditioin, NO bat survey.

I wouldn't @Erriff. Unless it is a condition of your permission.

Bad eaves detail, with a warm roof. How many times do we see that.

Yeah, @Thorfun. But our @Pocster, always gives the best laugh per post by a mile.

Nice job @FuerteStu Only my opinion, but i wish you had curved that second step. However, fab job, pat on the back.

One of the reasons why i hate those slopes when i see them in any property. You are going to have to try and get some insulation in there, while maintaining airflow under the tiles if you have a cold roof.

I thought that was my Mrs for a minute @Pocster. Then i realised that the lack of stocking tops ment it could not be her....... In my dreams.

Well @marshian. I am putting you on the "Proper decent job" list with that lagging alone fella.

No.wasting your time IMO. If you have a draft in the void, and a warm roof above.......You have a badly built extension. certainly a badly built roof. Do some measurements and find out if you have a warm roof.

A knackered, stuck shut motorised valve ? That would be my guess.