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Show Patching Old Roof Called Poor Idea When an old roof begins to leak, it wears out uniformly and patching is seldom an effective means of repair, according to the National Bureau of Standards. In fact, new leaks might be started when workmen climb on the weak roofing. In most cases, the most practical way to make permanent roof repairs re-pairs is to replace the roofing material ma-terial or re-cover it with asphalt shingles. This kind of roofing also adds fire-resistance, a quality considered con-sidered essential by the National Fire Protection Association. Roofs which will catch fire from chimney sparks or airborne fire brands are the fourth-ranking fire hazard according to property prop-erty damage and the fifth hazard according to number of fires, the NFPA says. In hundreds of cities and towns, building codes now prohibit the use of flammable shingles. |