Comfort. Strength. Luxury.

Maximize the value of your home with state-of-the-art Variform CSL 600® High Performance Insulated Siding. Our premium quality insulated siding offers the elegant look of natural wood with all of the cost-saving benefits of virtually maintenance-free siding and provides an extra layer of home insulation. CSL 600 requires no painting, repairing or caulking — a commitment we support with our Limited Lifetime Transferable Warranty.  CSL 600 adds a continuous blanket of insulation to the outside of your home. It improves your energy efficiency, reduces outside noise, and makes your home more comfortable year-around.

• Polystyrene insulation layer increases the R-Value of your exterior walls - so your home is warmer in the winter, cooler in the summer and quieter all year round
• Premium panel thickness adds stability and strength so panels install straight and true
• Never needs caulking or painting
• Resists dents and cracks from unexpected impacts
• Mold growth due to trapped interior and exterior moisture is less likely
• Treated to repel destructive insects like carpenter ants and termites
• Available in four fashionable profiles: S7, D6, D4 and D5 DL
• S7 and D6 profile's wide panels give an elegant appearance common in today's high-end homes
• Available in a wide variety of colors including the dramatic, dark Scenic Scapes® hues
• Supported by a full-line of coordinating accessories so your home can express your design vision
• Limited Lifetime Transferable Warranty gives you peace of mind
• Class 1A fire rated

Also available in CSL 600 EX, extra-long 16′ panels for up to 33% less seams than standard 12′ panels for a sleek, streamlined look.

CSL 600 is the ultimate choice for homeowners who are set on perfection. When you're ready to make the most of your home and make the most of your investment, the choice is clear - the choice is CSL 600.  It's more than siding. It's CSL 600.

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