3 Building Products stocks are moving up in their overall rating this week, according to the Portfolio Grader database. Every one of these is graded an “A” (“strong buy”) or “B” overall (“buy”).

Lennox International Inc. (LII) earns a A this week, jumping up from last week’s grade of B. Lennox International Inc. designs, manufactures, and markets heating, ventilation, air conditioning, and refrigeration equipment. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of LII stock.

Patrick Industries, Inc. (PATK) shows solid improvement this week. The company’s rating rises from a B to a A. Patrick Industries, Inc. manufactures and distributes building products for the manufactured housing, recreational vehicle, furniture manufacturing, marine, automotive aftermarket, and other industries. The company also gets A’s in earnings revisions, earnings surprise, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of PATK stock.

This week, Owens Corning’s (OC) ratings are up from a B last week to a A. 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 revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of OC 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.