The felt on the roof, type 1f..tar felt! Non breathable, modern membranes are breathable.
Regardless, can still function perfectly well if cross...
Of course, that's why you should get quotes!
Can you post a pic of the eaves from the attic? the shadowing is intriguing as it does not correspond with rafter spacing.
Insulate right up to the eaves without blocking them...keep the loft cold and airy to dissipate the condensation entering from the rooms below.
4k ish.. get 3 quotes for a like for like comparison ...the existing would only be removed if it is loose/damaged or if overcoating interferes...
Its not water ingress, the moisture in the room is condensing on the cold spot at the junction between the wall and ceiling at the eaves.
Scaffold or cherry picker with access.
Going by the pics, yes! Tiles need sorted out at the eaves as well.
New felt for sure, decking may need renewed, upgrade insulation if required.
If the insulation is not covering that edge of the ceiling it will create a cold spot and that is the result you would get.
Looks like condensation to me!
op the roof covering keeps the water out not the felt.
Ventilation and insulation in loft should be your first...
The bay window needs a new roof as the existing is shot.
check the roof tiles have enough oversail into the gutter as you have new upvc fascias.
Render mesh is perfectly adequate for your surface prep Martin.
S/s mesh ...expamet lath is overkill and used to stabalise poor substrate.
Martin, the silicone render grips to the mesh which in turn is plugged to the wall, the render can sit quite happily independent of the...
looks like a wetdash.
As in plural, the tiles are not falling off...singular! a fragment of tile has has fallen off for the reasons already explained.
A quick once over...
The eaves course of tiles needs raised on the extension! eaves trays fitted as well as any rotten wood stripped out and replaced.
As 23vc said, a bag of bonding plaster will do it.
Use timber the same depth as the shutter to form the screeds, then the concrete wont get under it and make it bow up.
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