Wooden Sash｜Introduction to Architecture Firms｜Windows That Express Natural Warmth

Wooden window frames are an opening material that stands apart from aluminum or uPVC frames, combining a natural warmth with superior thermal insulation. The tactile quality of wood provides a gentle continuity between interior and exterior landscapes and has the capacity to elevate the overall materiality of a dwelling. At the same time, regular maintenance such as repainting and precise detailing in joints and interfaces are essential in design and construction to preserve long-term beauty and performance. Widely adopted in Scandinavia and other Western countries, wooden frames are increasingly attracting attention in Japan as interest grows in natural materials and high-performance housing. This section introduces architectural practices that specify wooden window frames.