EX-32.1 11 a12-13830_1ex32d1.htm EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SEC. 1350

In connection with the filing by Senior Housing Properties Trust (the “Company”) of the Quarterly Report on Form 10-Q for the period ended June 30, 2012 (the “Report”), each of the undersigned hereby certifies, to the best of his knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

| /s/ Barry M. Portnoy |  | /s/ David J. Hegarty
| Barry M. Portnoy |  | David J. Hegarty
| Managing Trustee |  | President and Chief Operating Officer
| /s/ Adam D. Portnoy |  | /s/ Richard A. Doyle
| Adam D. Portnoy |  | Richard A. Doyle
| Managing Trustee |  | Treasurer and Chief Financial Officer

Date: August 1, 2012