Natural stability is the key to redwood’s long-lasting performance. Redwood is less likely to warp, cup, check and pop nails because it has less shrinking and swelling. Stability and little or no pitch content also help redwood hold finishes well. Redwood’s stability is a guarantee of long-lasting beauty. Properties Redwood heartwood provides resistance to decay from fungus and damage insect attack. The cinnamon-colored heartwood provides decay resistance throughout the lumber, not just on the surface. Redwood also offers sound insulation properties that make it a favorite for use where sound is a consideration. Uses For exterior projects, redwood decking, siding and trim complement most other building materials. Redwood gives designers a unique opportunity for integrating interior and exterior spaces with a common material. The rich beauty of redwood interior paneling provides an atmosphere of warmth and luxury for the interior of any homes. Working with redwood, you have a choice of color, dimension, texture, grain and pattern.