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. To work out roughly how many Dry Verges you need for Left and Right you would use your length size eg: 6m divide by 0.94 = 6.38 ( round up to the nearest 10) So you would need 7 Left Hand and 7 Right Hand Dry Verges.
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