VELUX

Curbs Plus, Inc.

Greenheck

KCC International, Inc.

LMCurbs

Roof Curb Systems, LLC.

Roof Products Inc

RPS

R&S Manufacturing and Sales, Inc.

Sausse: M.W. Sausse & Co., Inc.

Thybar

Varco Pruden Buildings

Vent Products Co., Inc.

Vibration Eliminator Co., Inc.

Vibro-Acoustics

Vulcan Steel Structures, Inc.