Net Sales (Tables)

12 Months Ended

Sep. 30, 2020

Revenue From Contract With Customer [Abstract]

Summary of Net Sales by Product Line and Geography

The following table presents the Company’s net sales by product line and geography for the years ended September 30, 2020 and 2019 (in millions):

	U.S.		Canada		Total
Year Ended September 30, 2020
Residential roofing products	$	3,043.2	$	56.4	$	3,099.6
Non-residential roofing products		1,534.5		112.1		1,646.6
Complementary building products		2,188.7		9.0		2,197.7
Total net sales	$	6,766.4	$	177.5	$	6,943.9
Year Ended September 30, 2019
Residential roofing products	$	3,023.2	$	56.4	$	3,079.6
Non-residential roofing products		1,582.8		122.4		1,705.2
Complementary building products		2,312.5		7.9		2,320.4
Total net sales	$	6,918.5	$	186.7	$	7,105.2