The AZEK Company Inc. (AZEK) Form 3 AZEK / VERNON J NAGEL ownership change

POWER OF ATTORNEY

      Know all by these presents, that the undersigned hereby authorizes each of
Paul Kardish and Morgan Walbridge of The AZEK Company Inc., a Delaware
corporation (the "Company"), to execute for and on behalf of the undersigned, in
the undersigned's capacity as a director and/or officer of the Company, Forms 3,
4 and 5, and any amendments thereto, and cause such form(s) to be filed with the
United States Securities and Exchange Commission pursuant to Section 16(a) of
the Securities Exchange Act of 1934, as amended, and the rules thereunder, and,
if necessary, such forms or similar reports required by state or foreign
regulators or jurisdictions in which the Company operations, in each case
relating to the undersigned's beneficial ownership of securities in the Company.
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
capacity at the request of the undersigned, is 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 may be filed with
the SEC as a confirming statement of the authority granted herein.

      This Power of Attorney shall remain in full force and effect until the
earliest of: (1) the undersigned is no longer required to file Forms 3, 4 and 5
with respect to the undersigned's holdings of, and transactions in, securities
issued by the Company; (2) this Power of Attorney is revoked by the undersigned
in a signed writing delivered to the foregoing attorney-in-fact; or (3) as to a
specific attorney-in-fact, the employment of such attorney-in-fact with the
Company is terminated.

     IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 18th day of November, 2021.

							  /s/ Vernon J. Nagel
							  -----------------------------
							  Name: Vernon J. Nagel