SEC FORM 3 SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person*
Fast Barbara

(Last) (First) (Middle)
505 HUNTMAR PARK DR
SUITE 300

(Street)
HERNDON VA 20170

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
10/29/2018
3. Issuer Name and Ticker or Trading Symbol
BEACON ROOFING SUPPLY INC [ BECN ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
Remarks:
No securities are beneficially owned.
Ross D. Cooper, Attorney-in-Fact 10/31/2018
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
Beacon Roofing Supply, Inc. 
POWER OF ATTORNEY
Section 16 Filers (Directors and Officers)


Know all by these presents, that the undersigned hereby 
constitutes and appoints Ross D. Cooper, 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 an 
officer and/or director of Beacon Roofing Supply, Inc. 
the "Company"), Forms 3, 4 and 5 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 Form 3, 4, or 5, complete and 
execute any amendment or amendments thereto, and timely 
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, 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 
one 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 Forms 3, 4, 
and 5 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 30th day of October, 2018.

/s/ Barbara G.Fast

Barbara G.Fast