The Coating for a Foundation Wall Calculator computes the number of pails (5 gal) needed to coat a foundation wall.
INSTRUCTIONS: Choose units and enter the following:
- (W) Width of Foundation Wall
- (GL) Height of Foundation Wall below Grade (below ground)
Pails of Coating (P): The calculator returns the number of pails of foundation and roof coating needed. It also returns the square feet covered.
The Math / Science
A foundation wall or flat roof is a measurable surface area. Pails of coating (as pictured) specify the number of square feet they will cover. The product shown lists a range of 350 ft2 to 500 ft2 for one 5 gallon pail over masonry and roof surfaces. The Foundation Coating calculator computes the surface area based on the width and the height and divides the surface area by the high an low range to give the user an idea of how many pails of sealer that will be needed for the job. Note that the Grade Level is used in the calculation.
The formula for Foundation Coating for a Wall is:
P = (W ⋅ H) / PC
where:
- P = pails of foundation coating
- W = Width of Foundation
- GL = Grade Level (height below ground)
- PC = Pail Coverage (350 ft2 to 500ft2)