A moulding on e.g. muntins, frames, architraves, mullions and transoms.
The moulding can be made of various materials and have straight-edged or round forms. On windows usually in wood.
Double Arch Window
Two windows placed side by side with a shared arch at the top or placed in the same recess. Also called biforium.
Double pitch skylight
One or multiple roof windows installed on the roof ridge like “ridge turrets”.
Dove tail
A joint, shaped like a dovetail, for fixing the corners of the frame together. One piece is cut in the shape of a wedge fitting into a groove of the same shape in the other.
Drip flashing
A sharp, vertical edge with a groove pulled out from the façade leading water from above drip off. May be built into transom, bottom frame, sill and horizontal mouldings.
