Hi I’m in the throws of fitting roof flashing for a woodburner (see photo).
Whilst I’m overlapping the slates up to the silicon boot, I have concerns that water hitting the upper part of the rubber could potentially track sideways between the slate underside and the aluminium flashing and find a way into the room below. Do you think to prevent this I should use a lead mastik around the underneath of the cut slate tiles around the upper half following the line of the silicone boot? Any advice please?
Whilst I’m overlapping the slates up to the silicon boot, I have concerns that water hitting the upper part of the rubber could potentially track sideways between the slate underside and the aluminium flashing and find a way into the room below. Do you think to prevent this I should use a lead mastik around the underneath of the cut slate tiles around the upper half following the line of the silicone boot? Any advice please?
