Fiberglass Composite Technology Displaces Traditional Wood
Manufacturers are increasingly replacing traditional wood construction with fiberglass composite panels that replicate authentic divided-light aesthetics while eliminating the swelling, warping, and repainting burden that has historically limited wood French door specification in humid or coastal climates. This technology shift has moved well beyond niche premium applications into mainstream renovation and new construction that represents the overwhelming majority of residential French door specifications nationwide. Manufacturers that developed proven fiberglass formulations early are capturing disproportionate share of these expanding specification opportunities, since builders rarely revisit an approved product line once a project is under way.
Market Impact: Commands 20 percent resale premium








