Schedule II

12 Months Ended

Dec. 31, 2021

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule II

SCHEDULE II

Armstrong World Industries, Inc., and Subsidiaries

Valuation and Qualifying Reserves

(amounts in millions)

	Balance at beginning of year		Additions charged to earnings		Deductions			Balance at end of year
2019
Provision for bad debts	$	0.3	$	0.7	$	(0.3	)	$	0.7
Provision for discounts		1.3		21.0		(20.9	)		1.4
Provision for warranties		0.4		3.0		(3.2	)		0.2
Provision for inventory obsolescence		-		0.6		(0.1	)		0.5
2020
Provision for bad debts	$	0.7	$	0.9	$	(0.2	)	$	1.4
Provision for discounts		1.4		19.4		(19.5	)		1.3
Provision for warranties		0.2		5.5		(4.8	)		0.9
Provision for inventory obsolescence		0.5		0.1		(0.6	)		-
2021
Provision for bad debts	$	1.4	$	0.4	$	(0.8	)	$	1.0
Provision for discounts		1.3		21.7		(21.3	)		1.7
Provision for warranties		0.9		3.9		(4.0	)		0.8
Provision for inventory obsolescence		-		0.3		(0.1	)		0.2