We are building a single storey rear extension wall next to our neighbour’s single storey rear extension wall.
The neighbour has a pre-finished aluminium capping to their parapet.
We intend to form a pitched roof abutting right up to theirs forming a weathering detail - but this is proving decidedly difficult!
Our roof pitch will not match theirs. Their roof pitch on their glass extension I estimate is 12 degrees and ours on our tiled roof is 15 degrees.
Therefore, the lowest part of our roof at wall plate level does not enable a 150mm cover flashing to be formed between the neighbours extension wall and our roof (we can only get say 60-70mm upstand).
At the highest level at rear original house external wall abutment, there is healthy say 300-400mm difference in levels down to their parapet which would enable a detail to be created (subject to their agreement) dressing on to their parapet.
But the ‘cross over’ space between the two creates a troublesome area difficult to weather properly.
It is not really an option to take off the neighbour’s aluminium capping.
I understand an option is to form my own parapet which would resolve the issue, but I may lose internal floor space.
Any ideas?
The neighbour has a pre-finished aluminium capping to their parapet.
We intend to form a pitched roof abutting right up to theirs forming a weathering detail - but this is proving decidedly difficult!
Our roof pitch will not match theirs. Their roof pitch on their glass extension I estimate is 12 degrees and ours on our tiled roof is 15 degrees.
Therefore, the lowest part of our roof at wall plate level does not enable a 150mm cover flashing to be formed between the neighbours extension wall and our roof (we can only get say 60-70mm upstand).
At the highest level at rear original house external wall abutment, there is healthy say 300-400mm difference in levels down to their parapet which would enable a detail to be created (subject to their agreement) dressing on to their parapet.
But the ‘cross over’ space between the two creates a troublesome area difficult to weather properly.
It is not really an option to take off the neighbour’s aluminium capping.
I understand an option is to form my own parapet which would resolve the issue, but I may lose internal floor space.
Any ideas?