After two strong rainfalls in Guadalajara, I was up on my father-in-law’s roof last weekend to help a contractor from Chapala, clean and reseal his roof. Typical of many older roofs, there was peeling sealant, missing base coat, mold and mildew stained tiles and even a series of vines climbing up the wall and over the flat roof area. The two storey house has a flat roof area that covers the stairway, hallway, four bedrooms and two bathrooms on the upper level: a total of about 150 m2 (1,600 ft2).
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