Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference of our reports dated December 22, 2014, with respect to the consolidated financial statements and the effectiveness of internal control over financial reporting of NCI Building Systems, Inc., included in this Annual Report (Form 10-K) for the year ended November 2, 2014 in the following registration statements and related prospectuses.
| NCI Building Systems, Inc. Form S-8 | | File No. 333-186467 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-176737 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-193057 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-173417 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-172822 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-166279 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-162568 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-139983 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-124266 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-111142 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-111139 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-34899 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-14957 |
| NCI Building Systems, Inc. Form S-8 | | File No. 333-12921 |
| NCI Building Systems, Inc. Form S-3 | | File No. 333-186466 |
| NCI Building Systems, Inc. Form S-3 | | File No. 333-156448 |
/s/ Ernst & Young LLP
Houston, Texas
December 22, 2014
