CertainTeed Learning Center: Insulation

Sand to Glass to Fiber Glass

How CertainTeed Manufactures Insulation
Everything you always wanted to know about fiberglass insulation. Learn the secrets of the fascinating manufacturing process that turns sand and recycled glass into energy-efficient fiberglass that keeps you warmer in the winter, cooler in the summer and makes your homes a quieter and more comfortable place to live.

Watch our VIDEO - Sand to Glass to Fiber Glass

Click here for an animated guide to the patented TEL manufacturing process used by CertainTeed/Saint-Gobain and our sister-brand Isover.

Search CertainTeed.com

CertainTeed has earned a reputation as a premier building materials manufacturer for more than 100 years. For every part of the building, CertainTeed offers a quality line of roofing, vinyl and fiber cement siding, pvc trim, sheathing, fence, railing, decking, foundation, windows, insulation, drywall and performance wallboards, ceilings, and pipe products for both residential and commercial building applications.