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Paint Exterior House Calculator

Paint Calculation Formula:

\[ \text{Paint (gallons)} = \frac{A}{C} \times N \]

square feet
square feet per gallon
unitless

1. What is the Paint Exterior House Calculator?

The Paint Exterior House Calculator estimates the amount of paint required to cover the exterior surfaces of a house based on the total area, paint coverage rate, and number of coats needed.

2. How Does the Calculator Work?

The calculator uses the paint calculation formula:

\[ \text{Paint (gallons)} = \frac{A}{C} \times N \]

Where:

  • \( A \) — Total area to be painted (square feet)
  • \( C \) — Paint coverage rate (square feet per gallon)
  • \( N \) — Number of coats required (unitless)

Explanation: The formula calculates the total paint needed by dividing the area by the coverage rate and multiplying by the number of coats.

3. Importance of Paint Calculation

Details: Accurate paint calculation helps in budgeting, prevents waste, ensures you have enough paint for the entire project, and avoids multiple trips to the store.

4. Using the Calculator

Tips: Measure the total exterior surface area accurately, check the paint can for coverage rate specifications, and consider the number of coats needed for proper coverage. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I measure the exterior area of my house?
A: Calculate the area of each wall (height × width) and add them together. Don't forget to subtract areas for windows and doors.

Q2: What is a typical paint coverage rate?
A: Most quality exterior paints cover 250-400 square feet per gallon, but check the specific product specifications.

Q3: How many coats are usually needed for exterior painting?
A: Most exterior projects require 2 coats for optimal coverage and durability, but this can vary based on surface condition and paint quality.

Q4: Should I buy extra paint for touch-ups?
A: Yes, it's recommended to buy 10-15% extra paint for touch-ups and future repairs.

Q5: Does surface texture affect paint coverage?
A: Yes, rough or textured surfaces may require more paint than smooth surfaces due to increased surface area.

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