Know all by these presents, that the undersigned, Frank H. Merlotti,
Jr., hereby constitutes and appoints each of Evan R. Farber, Lynn E.
MacDonald and William R. Gupp, the undersigned's true and lawful
attorney-in-fact to:

1. exectue for and on behlf of the undersigned, in the undersigned's
capacity as an officer, director or stockholder of Trex Company, Inc.
(the "Company"), a Schedule 13D and any amendments thereto, Forms 3,
4 and 5 and any other documents to be filed with the Securities and
Exchange Commission, in accordance with Sections 13(d) and 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 executive any such
Schedule 13D and any amendments thereto, any such Forms 3, 4 or 5 or such
other documents and file such form with the United States Securities and
Exchange commission and any 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, and in the best interest of, or legally required by, the
undersigned.

The undersigned hereby grants to 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
attorney-in-fact, in serving in such capactiy at the request of the
undersigned, is not assuming, nor is the Company assuming, any of
the undersigned's responsibilities to comply with Sections 13 and
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 a Schedule 13D and any
amendments thereto, Forms 3, 4, and 5 or such other documents with
respect to the undersigned's holding of and transcations in securities
issued by the Company, unless earlier revoked by the undersigned in a
signed writing delivered to the foregoing attorney-in-fact.

IN WITNESS WHEREOF, the undersigned has caused the Power of Attorney
to be executed as of this 2nd day of January 2006.

Frank H. Merlotti, Jr.
Signature