๐Roof Slope Calculation
๐Detailed Breakdown
๐ซDefinition of slope (i)
๐ฅThe slope of a roof is the ratio of its vertical rise (h) to its horizontal run (b), expressed as a percentage.
๐ฅFormula: i = (h รท b) ร 100%
โ๏ธKey parameters
- h = Height (vertical rise of the roof)
- b = Base (half the width of the building for a gable roof)
๐ทExample Calculation
๐ฑFor a gable roof with total width = 1000 cm
- Each half = 500 cm (base)
- If slope = 30%, then rise = (30 รท 100) ร 500 = 150 cm
- Meaning: For every 100 cm horizontally, the roof rises 30 cm vertically.
๐Importance of slope
- Ensures proper rainwater drainage
- Provides durability against weather conditions
- Maintains structural safety and aesthetics
๐Practical takeaway
โ๏ธA slope of 30% is considered moderate, balancing safety, drainage, and construction economy.
๐Steeper slopes may be used in areas with heavy rainfall or snow, while flatter slopes are common in dry climates.
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