The grades of 5 Building Products stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

This week, Fortune Brands Home & Security, Inc.’s (FBHS) ratings are up from a B last week to a A. Fortune Brands Home & Security, Inc. manufactures and supplies home and security products. The company also gets A’s in earnings growth. For more information, get Portfolio Grader’s complete analysis of FBHS stock.

This is a strong week for Owens Corning (OC). The company’s rating climbs to A from the previous week’s B. Owens Corning produces residential and commercial building materials, glass-fiber reinforcements and engineered materials for composite systems. The company also gets A’s in operating margin growth, earnings growth, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of OC stock.

Trex Company, Inc.’s (TREX) ratings are looking better this week, moving up to a B from last week’s C. Trex Company, Inc. is a manufacturer of wood-alternative decking, railing, fencing and trim products. The company also gets A’s in earnings growth, earnings revisions, and return on equity. For more information, get Portfolio Grader’s complete analysis of TREX stock.

USG Corporation (USG) improves from a C to a B rating this week. USG Corporation manufactures and distributes building materials. The company also gets A’s in operating margin growth, earnings surprise, earnings momentum, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of USG stock.

This week, NCI Building Systems, Inc. (NCS) pushes up from a C to a B rating. NCI Building Systems, Inc. designs, manufactures, and markets metal engineered building systems and products for the building industry. The company also gets A’s in operating margin growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of NCS stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.