AMT Life Cycle Calculator

Does a proactive Asset Management Program make sense for you?
Run the figures and find out!

The following is a simple and effective method to demonstrate the value of implementing a proactive
maintenance program on roofs utilizing ASTM E917-93 (Standard practice for measuring Life-Cycle
costs of buildings and building systems).

	Discount Rate:		The rate of interest that reflects the investor's time value of money.
	Inflation Rate:		The reduction in the purchasing power of the dollar from year to year.
	Federal Tax Rate:		Current federal tax rate for your organization.
	Sales Tax Rate:		Current combined state, county and municipal tax rate for your organization.

Roof Replacement cost per s.f.	$		This number should include all applicable sales tax
Roof Area			Square feet
Design Life of Roof without Maintenance		Years

Rollover the terms below to get their definitions.

		No Maintenance		3-Star Service		4-Star Service
Total Present Value Life-Cycle Cost over 31 yrs	$		$		$
Life Cycle Savings with Maintenance	$		$		$
Equivalent Annual Value	$		$		$

Roof Replacement Cycle		Years		Years		Years
Initial Cash Expenditure	$		$		$
Additional Cash Expenditure
Additional Life with Maintenance

Note: Assumptions have been made on the associated costs for leak repairs and consequential interior damage from leaks.
These interactive calculations and results are representative only. Actual results may vary based upon a number of factors
(i.e. the roof design, roof type, climate, roof traffic, quality of installation, interior building usage, etc.). More detailed and
customized life-cycle analysis can be provided upon request.

The cost of ownership of a roof over a 31 year period factoring in tax rates, inflation, discount rates and maintenance expense.

The actual cost savings in dollars over a 31 year period, when comparing a new roof with no maintenance versus a new roof with a pro-active maintenanc

The annual Cost of Ownership of a roof based on all factors provided. Annual payments for owning the roof over a 31 year period assuming that the int

The assumed intervals at which one can expect to replace a roof based on life expectancy and maintenance versus no maintenance.

The initial cost of a roof, which has no maintenance versus the same roof, which includes a proactive maintenance program.

The percentage increase in the Initial Cash Expenditure due to the additional up front cost of a maintenance program.

The percentage of increased performance life of a roof that has a proactive maintenance program versus no maintenance.