Edwardian Ridge that the maximum point of the conservatory is an innermost roof ridge that acts from the abutment of the conservatory to the house. To keep the 3 roof altitudes at the same pitch the edge length is designed as the protuberance less half the width, so evidently a very broad Edwardian conservatory will have a comparatively small point. The edge can characteristic a ornamental exterior finish with cresting and a finial, created mostly for cosmetic reasons but with the extra advantage of putting off birds sitting on the ridge, and leaving their compost the entire of the roof glass.