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Conservatory Glossary of Terms

Technical terms and reference manual

Box gutter - This a structural, aluminium gutter that is used to connect the conservatory roof to the facia of a bungalow.

Roof spa - This is also know as a glazing bar and holds the roof sheets in place.

Roof ridge - This is the central ridge where all the roof spas meet.

Finial - This is the decorative item placed at the end of the roof ridge.

Cresting - This is the decorative finish on top of the roof ridge.

Polycarbonate - This the multi-walled, glass fibre sheeting used to glaze the roof.

End Caps - These are plastic fittings used to close the end of a roof spa.

Eaves beam - This is an aluminium section, that sits on top of the frames, to strengthen the structure and attach the roof spas to.

Transom - This is the line created in the side frames to divide the top windows from the bottom fixed glass panels.

Mullion - This is the vertical section that divides each glass panel.

Trickle vent - This is a small device built into the PVC frames to allow limited ventilation without having to open a window.

Astragal bar - Also known as Georgian bar. This is a PVC section that is attached to the outside of the glass for decorative purposes.

Shoot bolt - This is part of the locking system in the windows and doors. When the handle is closed a steel bolt extends to a seat in the host frame.

Restrictor stay - This is a device fitted to the top of the door to prevent it from opening more than 90 degrees.

Muntin bar - This is an aluminium section inserted between the roof spas to seal the joint between to roof glazing sheets.

Infill panel - This is an insulated, reinforced PVCu panel that is used in place of double glazed sealed units.

Argon gas - This is dense, inert gas that is inserted into the void in the double glazed unit to reduce condensation and increase sound insulation.

U-value - This is the ability of a double glazed sealed unit to retain heat. The lower the U-value the more efficient the glazing unit.

Tie-bar - This is a structural, steel bar that is attached, internally, to the roof spas to prevent the roof from spreading.

Related Conservatory Guides

For further reading, you may wish to consider reading the following guides from the same category in this section:

Buyer's Guide

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