Bromley Roofing advice
Victorian and Edwardian Roof Problems in Bromley
Common roof problems found on Bromley period properties, including ageing slate fixings, parapets, lead valleys, chimneys and hidden leaks.
Many Bromley properties use traditional slate, clay tiles, parapets, chimneys and complex rear roof forms. These roofs can remain serviceable for a long time, but repairs need to respect the existing materials and understand how water moves through the original construction.
Ageing slate fixings
Traditional slates may remain sound after the metal fixings begin to fail. One storm-damaged slate can be replaced; widespread nail sickness causes repeated slippage and may eventually justify stripping and re-fixing the covering.
Parapet and valley gutters
Hidden gutters and valleys carry concentrated water and can leak at laps, outlets or changes of direction. Blockage or poor falls can allow water to back up beneath adjacent coverings.
Chimneys and leadwork
Weathered pointing, cracked flaunching and failed step flashings are common sources of damp near chimney breasts. The stack, leadwork and surrounding slates or tiles should be considered together.
Rear additions and flat roofs
Kitchen extensions, dormers and rear additions may have later flat roofs connected to older masonry and pitched coverings. Upstands, thresholds, outlets and abutments often determine whether the system remains watertight.
Repair with compatible materials
A visually similar material is not always technically compatible. Slate dimensions, tile profile, roof pitch, fixings, ventilation and the weight of replacement coverings should all be considered.