Have someone foot the ladder and tie it into the fascia.
Roof leaking around chimney stack.
I have tried replacing felt around chimney area.
Also check the timber at the rear of the stack for staining drips or wetness with the back of your hand.
But if you have problems with water leaking around the outside of your chimney down into your walls you may have a problem with worn out flashing or sealant.
Your chimney flashing is the area where your chimney comes through the roof or close to the roof and prevents moisture and other debris from getting in between the chimney and roof.
To repair chimney flashing leaks.
After the heavy rains of winter 2013 14 there was water ingress around the two chimney stacks through to the bedroom ceilings.
Flashing is usually aluminum and is sealed down with tar or another waterproof sealant.
Over time the sealant can erode and create an entryway for water.
You have to determine accurately and definitely if possible where exactly the roof leaks.
A roofing company repaired the stacks and treated the render but during the following winter one chimney stack appeared to be waterproof but the other not.
For example your roof might have a leak through the attic vent or roof shingle at the top.
It s installed as it is across other areas of the roof to ensure you have a watertight seal on the brickwork.
An option would be to cut the stack shy of the eaves and run it outside the roof plane in plastic this is professional work but clambering about on roofs is too.
I have a 1960 s detached with roofing felt and tiles.
Inspect the flashing for gaps or cracks.
Or you may have a poorly designed valley at the bottom of the roof slope and directly above your chimney that catches debris snow and ice.
Apply roof cement to any gaps or cracks.
Turbo poly seal makes it easy to seal between the bricks and it makes a perf.
Leak from roof around chimney.
If you inspect the roof do it from a ladder dont go on the roof.
The bedroom wall adjacent the chimney keeps getting damp patches the ceiling slopes towards the chimney wall and patch mainly on slope.
Leaks in the chimney flashing flashing will traditionally be applied around the base area of the chimney where the stack meets the roof structure.