It looks great and is proving a huge success for the application of re-roofing (over roofing) old, tired, bubbled, torn, cheap thin felt roofs commonly found on sheds and stables. To work out roughly how many Ridge Tiles you need you would use your ridge length eg: 5.5m divide by 0.36 = 15.27 (Round up to nearest 10) So you would need 16 Ridge Tiles.
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