PPG INDUSTRIES, INC.

					 POWER OF ATTORNEY

	Know all men by

these presents, that the undersigned hereby constitutes and appoints each

of James C. Diggs, Keith L. Belknap, Jr., and Thomas L. Butera, signing

singly, the undersigned's true and lawful attorney-in-fact, to:


	(1)
execute for and on behalf of the undersigned, in the
undersigned's capacity
as a director of PPG Industries, Inc. (the
"Company"), any forms required
to be, or which may be, filed with the
Securities and Exchange Commission,
Washington, D.C., in accordance with
Section 16(a) of the Securities
Exchange Act of 1934 and the rules
thereunder;

	(2) do and perform any
and all acts for and on behalf
of the undersigned which may be necessary or
desirable to complete and
execute any such forms and timely file such forms
with the United States
Securities and Exchange Commission and stock
exchange or similar
authority; and

	(3) take any other action of any
type whatsoever
in connection with the foregoing which, in the opinion of
such
attorney-in-fact may be of benefit to, in the best interest of, or

legally required by, the undersigned, it being  understood that the

documents executed by such attorney-in-fact on behalf of the undersigned

pursuant to this Power of Attorney shall be in such form and shall
contain
such terms and conditions as such attorney-in-fact may approve in
such
attorney-in-fact's discretion.

	The undersigned hereby grants
to each
such attorney-in-fact full power and authority to do and perform
any and
every act and thing whatsoever requisite, necessary, or proper to
be done
in the exercise of any of the rights and powers herein granted,
as fully to
all intents and purposes as the undersigned might or could do
if personally
present, with full power of substitution or revocation,
hereby ratifying
and confirming all that such attorney-in-fact, or such
attorney-in-fact's
substitute or substitutes, shall lawfully do or cause
to be done by virtue
of this Power of Attorney and the rights and powers
herein granted.  The
undersigned acknowledges that the foregoing
attorneys-in-fact, in serving
in such capacity at the request of the
undersigned, are not assuming, nor
is the Company assuming, any of the
undersigned's responsibilities to
comply with Section 16 of the
Securities Exchange Act of 1934.

	This
Power of Attorney shall
remain in full force and effect until the
undersigned is no longer
required to file any forms with respect to the
undersigned's holdings of
and transactions in securities issued by the
Company, unless earlier
revoked by the undersigned in a signed writing
delivered to the foregoing
attorneys-in-fact.

	IN WITNESS WHEREOF, the
undersigned has caused
this Power of Attorney to be executed as of this
15th day of February,
2006.

					   	   /s/  James G. Berges

							JAMES G. BERGES