Glossary of Terms
To help you understand the terms we use to describe our products we have put together a glossary of terms, please see below:
What is a lintel?
A lintel is a reinforced beam that is used above doors and windows to support the above brickwork so that it isn’t being supported directly onto a window or door.
Other names: Concrete Lintel, Stone Lintel, Catnic Lintel, Steel Plate Lintel.
Low E glass
What is low E glass?
Insulated coated glass that helps reduce energy loss.
Other names: High level U value Glass, Planitherm Glass, Diamante Glass.
What is a Mortice Lock?
High security lock used on doors.
Other names: 3 Hook lock, 7 point lock, Locking system.
What is a Mullion?
Are vertical bars on windows or doors, to divide whole sections up.
Other names: False mullion, dummy mullion.
Multipoint Locking System
What do you mean by “multipoint locking system”?
Both the door and the frame are locked together at multiple points.
Also Called: High security locks, 8 point locking, Shoot bolt, ESPAG locking.
What do you mean by “Night vent”?
Ventilation grills that allow air flow on windows and doors.
Other names: Trickle Vents, Ventilation Grills, Air Flow Vents, Grills.
One Way Screw
What do you mean by One way screw?
Self tapping screws that only go in one way.
Also Called: Self tapping screw.
What is a Pane?
A glass unit.
Also Called: Panel of glass, Unit, Glass panel, Half panel.
What is a patio door?
A sliding glass panel door (going out to a patio garden).
Other names: Sliding Door, 2 Pane Patio, 3 Pane Patio, Internal Sliding Door.
Plant on Bay
What is a Plant on Bay?
Bay window that is from floor to ceiling. Can walk into.
Also Called: Walk in Bay, Walk in Bow, Flat Roof Bay, Tiled Roof Bay.
What is a profile?
Lengths of plastic that makes the window or door frames.
Other names: Extrusion, Lengths, PVCU lengths.
What does PVCU stand for?
PolyVinyl Chloride Un-Plasticised.
Also Called: UPVC, Plastic Windows.
What does Reinforcement mean in windows?
Helps strengthen windows & doors.
Other names: Steel Reinforcement, Aluminium Reinforcement, Box Section, Hollow Section, T-Section.
What do you mean by?
To cover over the house brickwork.
Also Called: Pebble Dash, Fine Rough or Smooth Render.
What is a residential door?
The main entrance door to a property.
Other names: Front door, Main door, Entrance door, Outer door.
What is a Reveal?
The wall directly to the side of a window or door on the inside of the window frame.
Other names: Window Ledge, Window Sill, Window Frame, Door Way, Window Cheeks.
What is a Restrictor device?
A way that a window can be stopped from fully opening to help with safety.
Also Called: Child Restrictor Locks, Fire Escape, Easy Clean.
What is sash?
A window that has overlapping sliding windows.Normally 2 panes of glass that slide up and down inside a frame.
Also called: Vertical Sliders, Top Light, Fan Light.
What is Sealant?
Materials used to seal the window or door to the wall cavity.
Other names: Rubber Seal, Silicone, Stelmax, Putty.
Secondary Double Glazing
What is secondary double glazing?
An internal glass frame that fits inside your original windows.
Other names: Internal Glazing, Glazing Kits.
What is a Shootbolt?
A form of high security locking system used in windows.
Other names: Finger Bolts, Hook Locks.
What does side lights mean?
A panel to the side of a door, Usually fully or part glazed.
Other names: Side panels, Glass panels.
Sill / Cill
What is a sill/cill?
External window ledge.
Also Called: Cill, 150mm cill, 180mm cill, Window Ledge, External Cill.
What is Snib?
The way to latch a lock on a door.
Other names: On the latch.
What is a Soffit?
The underside of an exterior overhanging roof eave.
Also Called: Eaves board, Hollow board, Roof eaves boarding, Fascias.
What is a spindle?
Internal mechanism of a handle.
Also Called: Split Spindle, Thumb lock.
What do you mean by Surveying?
An accurately detailed inspection and measurement report of the site.
Also Called: Measuring up, Site survey, Site measure.
What is tempered glass?
Toughened safety glass designed to shatter with no sharp edges.
Also Called: Shatterproof glass, Safety glass, Treated glass.
What do you mean by thermal break?
The gases used in insulated glass panes is used as a thermal break to prevent the thermal energy being dispersed between the glass.
Other names: Spacer bars, Reinforced thermal bars, Thermal bars.
What is a thumbturn?
A locking devise used in doors and windows.
Other names: Spindle lock, Lock and Key devise.
What is a Transom?
Horizontal bar that divides a window or door.
Also Called: False transom, Dummy transom.
Tilt and Turn Windows
What is a Tilt and Turn Window?
An inwards opening tilted window.
Other names: Swivel window, Tilt windows, Inwards opening windows, Push out window.
Toeing and Heeling
What does toeing and heeling mean?
A fitters procedure used to correctly hang and fit a door.
Also Called: Packing glass, Fitting packers.
What is Toughened glass?
Glass that has been treated and put under heat and coolant processes.
Other names: Safety glass, 6mm glass, Pilkington glass.
Vertical Sliding Window
What is a vertical sliding window?
A window that has overlapping sliding windows. Normally 2 panes of glass that slide up and down inside a frame.
Other names: Sash windows, Tilt and Turn, Top light, Fan Light.
What are window boards?
Internal window sills.
Also Called: Duraboard, Softwood boards, Window cills, Window ledges.
Wood Grain Finish
What is wood grain finish?
A foil wrapped treatment that allows a grain appearance and colours to PVCu or aluminium finished windows and doors.
Other names: Oak windows and doors, Mahogany windows and doors, Wood grain windows, Wood effect windows, Rosewood windows, Stain grain windows.