When saving energy is of importance, TBS frame is an economical and inexpensive solution. Besides being thermal break, it can be coupled with double-glazing glass. Its thinness and also one-of-a-kind combination with Deutschtec Airdrive series, which hides the upper horizontal profile inside the operator’s case, has made TBS frame a smart gorgeous choice for modern architecture. This type of frame has successfully been tested for escaped doors.