Note 13—Deferred Revenue and Extended Product Warranties

Deferred revenue consists primarily of unearned revenue related to separately priced extended warranty contracts on sales of certain products, the most significant being those offered on its installed roofing systems within the Construction Materials segment.

Roofing Systems Deferred Revenue

The amount of revenue recognized related to extended product warranties covering roofing systems was $4.2 million for both of the three month periods ended March 31, 2014 and March 31, 2013. Deferred revenue recognized in the condensed Consolidated Balance Sheets includes the following related to roofing systems extended product warranty contracts:

	March 31,		December 31,
In millions	2014		2013
Deferred revenue
Current	$	17.1	$	17.0
Long-term	143.3		142.8
Deferred revenue liability	$	160.4	$	159.8

Expected costs of services to be performed under extended product warranty contracts are actuarially determined. Any expected costs in excess of deferred revenue are recognized within Accrued expenses.

Other Deferred Revenue

Other deferred revenue recognized in the Consolidated Balance Sheets as of March 31, 2014 and December 31, 2013, mainly related to contracts on brake pads, was as follows:

	March 31,		December 31,
In millions	2014		2013
Deferred revenue
Current	$	0.4	$	0.4
Long-term	0.7		0.8
Deferred revenue liability	$	1.1	$	1.2