A stitch in time… Makes good sense and saves money
What to look for:
Bituminous compounds have been in use in buildings for centuries, and on roofs for at least 150 years. Failure is usually caused by poor design and workmanship. Some of these can be corrected if they are letting water into the building, but do not assume that all unsightly faults, such as blisters and bumps, need immediate attention. As with lead roofs repair tapes should not be used as are short-lived and may conceal problems.