Wood-cased glass door assembly

A wood-cased glass door assembly comprising:

• an openable glass door composed of a glazing, and wooden stiles and rails, which are fitted on an outer peripheral edge of the glazing;
• a wooden doorcase fixed in an opening in a wall, said door being mounted for opening and closing within said doorcase;
• thermally expanding materials separately installed in spaces defined between an inner peripheral portion of the wooden doorcase and outer peripheral portions of the wooden stiles and rails and between inner peripheral portion of the wooden stiles and rails and the outer peripheral edge of the glazing over the entire length in the longitudinal directions of the spaces, said expanding materials foaming and expanding under heat to block the respective spaces;
• and
• metal fittings for holding the glazing, said metal fittings being positioned on inner and outer surfaces of the outer peripheral edge of the glazing therebetween are fixed to the wooden stiles and rails,
• wherein the thermally expanding material installed in the space between the inner peripheral portion of the wooden door case and the outer peripheral portions of the wooden stiles and rails is divided into two strips provided with an interval therebetween, one of said strips being disposed at a position near an inner surface of the openable glass door and another of said strips being disposed at a position near an outer surface of said openable glass door,
• wherein the space defined between the inner peripheral portion of the wooden doorcase and the outer peripheral portions of the wooden stiles and rails includes a drain space defined between an inclined drain surface and a lower one of said wooden rails, said drain surface being inclined downwardly on an inner peripheral surface at a bottom of said wooden doorcase, a portion of said two strips of thermally expanding material being installed in the space between said lower wooden rail and said drain surface, and
• wherein the strip of thermally expanding material disposed at the position near the outer surface of said operable glass door is thicker than the strip of thermally expanding material disposed at the position near the inner surface of said openable glass door.