| Home | Products | Decorative Options | Glass Technology | Energy Efficiency | Warranty | Contact Us | Double Hung, Slider & Picture Windows Casement & Awning Windows Patio Doors This technology allows the vinyl to expand and contract with temperature fluxuations without causing the wood and vinyl to separate. And with a fully fusion welded vinyl frame and sash, there is no potential moisture build up behind the wood. No other wood window technology comes close. Sherwood windows frame your view with warm and inviting wood. To enhance the view Sherwood windows feature 15% Greater Openness provides... 25% better airflow, allowing light, fresh breezes to flow through 25% more optical clarity for a crisper, brighter outward view 20% Better Insect Protection Ideal for windows where the focus is on the view