Originally designed to enclose the balconies and terraces in countries with warm climates such as Spain one glass panel formed a weatherproof glass wall that took nothing from the opinions are allowed a balcony or terrace which will be used for all but the coldest days.

The concept of simply sliding each panel in the direction of the diaphragm and rotate 90 degrees counter-stack side of the wall led to the term curtain. Restaurants and cafes began to question whether their windows may be replaced by frameless glass panels benefits expansion and ease of opening windows for maximum air flow. If the whole wall replaced the floor glass curtains will function as doors.

Inside the large institutions slide and turn panels were used for the section off areas as needed some owners indicating tinted glass or etched to enhance their decor. Golf clubs and hotels with the monasteries saw the advantage of the surrounding areas to maximize their potential year-round. Glass Curtains can be installed to fit inside the curved arches they can also be installed around the curve of the circular terrace or balcony.

The concept of window blinds have recently been introduced in the UK. Original one pane of tempered glass panels are ideal for internal partitions and commercial purposes but unsuitable as a replacement for patio doors in homes the thermal insulation requirements can not be satisfied with one glass.

Nevertheless there are a number of options for homeowners to consider depending on what aspects of the design appeals to them.

Bifolding doors offer good views and turn to the side wall or walls for full access. Door frame to determine how well the point of view may be. For example a cheap plastic frames are quite wide in order to provide some strength better plastic reinforced with metal but more than wood which in turn is broader than aluminum (usually 60 mm).

Narrower still are under 20mm Slimline doors new to the market. They are based on a slide and turn the concept of window blinds. Slimline windows mentioned above have been developed in Spain specifically for the UK market. All panels can stack in the direction of opening or can be arranged at the opening to leave gaps between the glass panels. The gaps may be wide enough to pass or small enough to keep kids or pets Out.

It can be argued that the bonus installation of this system is fun to be different. Bifolding doors have become popular over the last two or three years but they have been available for about ten years - major purchases are not made too often such growth industries such relatively slowly. This new system has just become available and will probably be installed in less than 200 properties this year.

Double glazed thermally compatible glass door curtains that look like thin profiles of double-glazed windows - but frameless - available for order in anticipation of testing and approval of suitability as an exterior door. Testing and approval necessary for homeowners who have installed according to building standards as well as energy cost savings.