Casement patio doors are the most common solution for external patio doors. They can be produce in many different ways depending on prevailing weather conditions and specific user preferences. They are available as singular or double winged with the following variations:
- with threshold
- with a low threshold
- without a threshold
PLEASE NOTE: Each and every patio doors should be equipped with insulation extensions installed under the expansion threshold in order to stabilize the threshold and to eliminate any thermal bridging. A lack of thermal extensions may cause frost to form at the bottom, a bending of the threshold, a malfunction of the door wings or a draft coming from the bottom of the door.