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Behr Exterior Paint Coverage Formula:
The Behr Exterior Paint Coverage Calculator helps determine the amount of paint needed for exterior painting projects based on surface area, paint coverage rate, and number of coats required.
The calculator uses the paint coverage formula:
Where:
Explanation: The formula calculates the total paint needed by dividing the surface area by the coverage rate per gallon, then multiplying by the number of coats.
Details: Accurate paint calculation prevents wastage, ensures you purchase the right amount, saves money, and helps complete the project without interruptions.
Tips: Measure the total surface area accurately, check the paint can for coverage rate specifications (typically 250-400 sq ft/gallon for exterior paints), and determine the number of coats needed based on surface condition and desired finish.
Q1: What is the typical coverage rate for Behr exterior paint?
A: Most Behr exterior paints cover 250-400 square feet per gallon, depending on surface texture and application method.
Q2: How do I calculate surface area for exterior painting?
A: Measure length and height of each wall, then subtract areas for windows and doors. For complex surfaces, add 10-15% for waste.
Q3: How many coats are typically needed for exterior painting?
A: Most exterior projects require 2 coats for optimal coverage and durability, especially when changing colors or painting over dark surfaces.
Q4: Should I buy extra paint for touch-ups?
A: Yes, it's recommended to purchase 10-15% extra paint for future touch-ups and to account for surface absorption variations.
Q5: Does surface texture affect paint coverage?
A: Yes, rough or porous surfaces like stucco or brick may require up to 30% more paint than smooth surfaces.