Senior Management Changes

CRH PLC
22 May 2006


SENIOR MANAGEMENT CHANGES AT CRH
22 May 2006


CRH plc announces the following senior management changes at Oldcastle Inc., the
holding company for CRH's American operations which have annualised sales of
approximately US$10 billion. These changes are effective 1 July 2006.

Joe McCullough, Chief Executive Officer (CEO) Oldcastle Products and
Distribution, will retire as planned at the end of June. Joe will continue to
act in a non-executive advisory role as Chairman of Oldcastle Building Products.

Tom Hill, is appointed CEO Oldcastle Inc. Each of Oldcastle's Product Groups
will report directly to him in Atlanta. Currently CEO of Oldcastle Materials,
Tom joined CRH in 1980, and has managed Oldcastle Materials through much of its
growth, having been President since 1991 and CEO since 2000. He joined the CRH
Board in 2002.

Mark Towe succeeds Tom as CEO Oldcastle Materials. Mark joined Oldcastle as
Chief Operating Officer of the Materials Group in 1997, becoming President in
2000. Prior to joining the Group, he held a number of senior management
positions in the US aggregates industry.

Doug Black is appointed President and Chief Operating Officer of Oldcastle
Materials. Doug joined Oldcastle as VP Development in 1995 from the management
consultancy sector, and subsequently was a regional manager in the Oldcastle
Precast Group before assuming his current position as CEO Oldcastle
Architectural Products Group in 2002.

Bill Sandbrook, President Oldcastle Materials West since 2003, becomes CEO
Oldcastle Architectural Products Group. This role will additionally have
responsibility for CRH's existing products businesses in South America. Bill was
a senior manager at Tilcon when it was acquired by Oldcastle in 1996 and became
President Oldcastle Materials New York/New Jersey before moving to his current
role in the West.

John Parson is appointed President Oldcastle Materials West. John spent his
career with his family's business, the Jack B. Parson Company, which Oldcastle
acquired in 1996. Since 2003 he has been President of Staker-Parson, Oldcastle's
materials business in Utah, Idaho and Oregon.


Commenting on these changes, Liam O'Mahony, CRH Chief Executive said:

'Joe McCullough has made an enormous impact on CRH in his 27 year career -
particularly from 1991 to 2002 in founding and growing Oldcastle Architectural
Products into the national leader in its field; subsequently as CRH Development
Director in Dublin, and more recently in heading up the US$6 billion Oldcastle
Products and Distribution business. We thank him for his contributions and wish
him well in his retirement. I also congratulate Tom, Mark, Doug, Bill and John
on their appointments; I am confident that in their new roles they and their
colleagues will lead Oldcastle to continued success in the future'.


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