Jargon Buster

Building roofs is quite technical and so sometimes we use technical language. Sorry about that. However, to keep things simple we've designed a manual to explain and translate many of the commonplace words and terms used in the conservatory industry.

Each reference includes a list of alternative words ("also known as"), a full description of the product/component and, where relevant, a picture to illustrate its relevance.

To find the explanation for your term simply browse alphabetically below.

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A B C D E F G H I J L M N O P Q R S T U V W
Dead Zone

Also known as: Off limits A dead zone refers to a restricted area of the conservatory roof where glazing bars cannot be fixed.

Deeplas White

Also known as: Blue. 'Deeplas' is the brand name for blue-white as manufactured by Deceuninck (for its uPVC windows), the first company to have blue white. Main other blue-white is produced by Duraflex for its uPVC frames.

Dentil Moulding

Also known as: Castleations. Decorative, cobbled trim placed between eaves and window frames.

Dessicant

Also known as: Molecular sieve. Dessicant refers to a small absorption beads that collect moisture. These are placed inside the spacer bar of a double glazed unit to prevent the unit 'misting' with condensation.

Dgu's

Also known as: Double glazed unit, Sealed unit, Double glazing, Insulated glass unit (IGU). A DGU is the term used when two panes of glass are kept apart by a spacer bar and are usually filled with air or argon gas.

Double Drip

Also known as: Twin drop. 2 vertical tie bar rods, equally spaced, either side of ridge.

Dpc

Also known as: Damp proof course. A damp proof course is placed between brick courses at the internal floor level. The external ground level should usually be two bricks below the DPC

Dpm

Also known as: Damp proof membrane, Visqueen. DPM is the term used for a large sheet of Visqueen (plastic sheeting) that sits under a concrete slab to prevent ground moisture entering the conservatory.

Drill & Fix

Also known as: Screw Fix. Flexible outlet position, can be placed in awkward location.

Dropped Ridge

Also known as: Lowered valley, drop valley. A dropped ridge features in a P-shape conservatory where the half ridge is below the level of the main ridge. Usually used to avoid obstructions on the host wall (see photo).

Dry Line

Also known as: House wall studded out then plasterboard attached to face (avoids wet trades).

Duo Pitch

Also known as: Gable style roof. A conservatory is described as duo pitch when there are two slopes with a central ridge; e.g. Gable style roof

Dwarf Wall

Also known as: Knee wall. A dwarf wall is the wall under the window frames on a conservatory, usually placed at 450mm or 600mm high.

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