Calculators and methods
How the numbers behind coating and fireproofing take-offs are actually calculated — the code formula, the geometry and the arithmetic, with the limits of each spelled out. For what the work costs, see the cost guides.
Coating Life-Cycle Cost: Method and Its Limits
Why comparing coating systems on applied price misleads, how life-cycle cost is calculated over a design life, and where the published 30-year figures stop.
Intumescent Coverage and Section Factor
Why the same square foot of intumescent can need ten times the material: section factor sets the DFT, and DFT sets coverage against a fixed constant.
Pipe Surface Area Calculator: π × OD per Foot
External surface area of pipe per linear foot and per run, with the common πr² mistake shown side by side — the cross-section is not the coated area.
SFRM Thickness Calculator: IBC Beam Substitution
Calculate spray-applied fireproofing thickness when your beam differs from the tested assembly, using the IBC code equation — with its limits enforced.