It has a film on it that burns off when torching. Won't grab too well with cold adhesive. Just used sand faced, cheaper too !
If it's a blister, it's air. If it can keep in air, it can hold out water. He's a diy'er who wants a simple fix, for a roof that is, in the main,...
If you are keeping loft area, you can insulate across the rafters as usual. 220mm of rockwall last time i looked.
3x2 won't take a concrete tile...
It's easily repairable. The cracking is on the exposed bitumen where they have mopped the drips up.
Get a tin of Acropol and follow instructions.
Bonnets and Valley won't line up. I'd want them off and done again.
They look odd to the professional eye.
It's basically a mini bonding gutter for each slate. Ok solution for low pitch.
It needs a gasket on the inspection plate, 5 minutes work. Make sure upstairs is not having a dump when its fixed.
Could also be a combination...
Looks like they have used the wrong flashing kit. Also look like tile n halves which would make it look worse.
I bet you hook a lot of ducks at the fairground :D
Have you spoken to the site manager ? What borough ?
Britmet or Metrotile go down to 5 degrees.
Felt under with counter...
Surveyor is correct, especially if you have condensation in loft.
Separate names with a comma.