The cloth trade left Chalford with a number of mills, and many of those buildings are now homes, workshops or small business units. Their roofs ask different questions from a cottage, and the answers affect cost, access and who is responsible.
Q2.1Why do linked roof spans leak at the middle?
Where two pitched roofs sit side by side, the gutter that runs between them takes the rain from both. It is often lined with lead, felt or a single-ply membrane, and it falls gently towards an outlet at one end. A blocked outlet, a sagging lining or a section that has lost its fall holds water, and standing water finds any weakness. Clearing and re-lining a valley gutter is far smaller than re-roofing, and it is the first thing we look at.
Q2.2Can sheeting laid over old coverings be saved?
Many mill roofs have had one repair on top of another: a sheet over a tile roof, a coat over a felt. These layers hide what is underneath. Where we can see the original timbers and the fixings, we advise what is sound. Where they are hidden, the quote rests on what the survey photographs show, and we tell you what could change once the layers come off. Moving a layer is sometimes the only way to find the real fault.
Q2.3Who is liable for a converted mill roof?
If the building has been split into flats, the roof is often shared and looked after through a management company or freeholder. Our commercial roofing page explains how we work with the person responsible, and the written quote gives them something clear to approve.
Reaching the roof itself is one question, but delivery to a mill beside a canal or a narrow road can be, so we plan where materials will be set down and how the site will be kept tidy.