A room access often found to both sides of a chimneybreast. 

A curved structure built to distribute weight over an opening in a wall. 

Traditionally a moulded wood strip around the edge of a door covering the joint of door frame and plaster or other wall finish. 

Pointing applied internally to the gaps between roofing slates. It’s purpose is to prevent wind driven rain or snow entering the roof space. Sometimes known as ‘Devilling’. 

A vertical pillar supporting the handrail of a staircase; may be carved or plain. 

A row of balusters joined to a horizontal rail at, for example, the edge of a landing. 

The board placed along the verge of a roof at the gable end. 

Timber fillets to which slates and tiles are nailed or fixed. 

The placing of bricks in mortar to form a wall- English bond, Flemish bond, Garden Wall bond etc. 

The lowest horizontal part of a door. 

A type of door with diagonal supporter braces. 

A brick or stone support to a wall designed to resist thrust movement and to give added stability. 

A window hinged at one edge and designed to open inwards or outwards 

The space between the inside and outside walls of a building. It provides protection from driving rain for the inside wall. Usually tied to the external wall with cavity wall ties. 

Joist which supports a ceiling. 

A cement joint, generally used to describe cement joints between roof slopes and walls or where walls abut other surfaces or the ground. 

A construction to hold sewage and foul waste. 

That part of the chimney flue that projects into a room. 

That part of the chimney built above roof level. 

A horizontal timber joining rafters, the cross piece in a single frame. 

A sloping soffit or ceiling; sometimes spelt Coomb, or Comb 

Brick or stonework on top of a wall.
 

Bricks projecting in steps from a wall, often found at the top of a wall immediately below a roof. Not to be confused with Dentils, which often support guttering. 

Ornamental plaster around the joint of a wall and ceiling. 

A roof without a collar. 

A cap to a chimney or vent pipe which can move in the wind to keep the opening away from the direction of the wind. Often just a fixed cap. 

An impervious membrane laid about two brick courses above ground level to prevent damp from rising. 

An impervious membrane laid beneath a floor as a protection against rising damp. 

See 'Back Pointing' - above 

A window formed in a roof slope which projects from the slope. 

A window where the upper and lower sashes are hung on cords or slides and can move up and down. 

Usually used to describe a timber pin holding jointed sections of timber together 

The lower edge of a roof near the gutter 

A small window over a door or casement 

The board to which the gutters are fixed. 

A small strip of wood, slate, cement, etc., used to fill up a narrow joint.
 

An ornament, often of terracotta, fixed at the gable end of the ridge. 

Special bricks for fireplaces designed to withstand intense heat. 

Tapered pieces of timber laid on joists of flat roofs to provide an adequate fall to gutters. 

A large paving stone -as a flagstone. 

Usually made of lead and fixed to provide a waterproof protection at the joint of flat roofs and adjoining walls between pitched roofs and walls or around chimneys. 

The cement work around chimney pots. 

A door made up of rails, styles, battens and braces. 

In building terms -the handles, knobs, locks, etc., fitted to doors, windows and fitted or built in cupboards. 

As in gable end, is the triangular part of a wall under a roof end. 

A large beam made of iron or steel. 

A floor finish of crushed stone or aggregate.

Used for filling the joints in wall tiles. 

Timber framed walls filled with brick or stone and frequently plastered. 

The angle where two roof planes meet at a ridge. 

A funnel or hopper-shaped head to the top of rainwater pipes to collect rainwater and/or waste water from one or more pipes. 

A chemical injected into the base of a wall at regular intervals in order to prevent rising dampness. 

Tiles which lock together to form a watertight roof without the need for lapping.
 

Timbers built into or hung from walls to provide support for floors or fixing for ceilings or both. 

Timbers built into or hung from walls to provide support for floors or fixing for ceilings or both. 

The central post of a timber roof truss 

The overlap of courses of slates. 

A structure, the sloping roof of which abuts a higher wall. 

A door which is strengthened with diagonal braces. 

A door where the vertical boards are fixed to ledges only. 

The horizontal beam over a window or door opening. 

As in louvered door or window. Wood or glass slats are laid at an angle or may be hinged so that they can be opened to allow ventilation 

A roof made with two slopes -effectively provides a top floor of usable space within a roof structure. 

A generic term for any sealant used in the building process, e.g. For sealing the joint around window openings. 

A floor between the ground and first floor. 

An upright division of a window. 

The post at the bottom and top of a stair to which the handrail is fixed. 

The rounded projecting edge of a step in a staircase 

A window projecting from an upper floor.  Also known as 'Oriole', 'Oryel'

The roof timbers to which felt and battens are fixed. 

Stone walls consisting of an outer and inner skin of stone, usually dressed on one face only. The space between the skins is filled with construction rubble. From time to time, ‘through’ stones are placed across the wall to provide structural stability.  It is virtually impossible to fit an effective chemical dpc in walls of this type.
 

A set-back in timber, stone, etc. 

The first coat in plastering or general term for most finishes applied to external wall surfaces, may be smooth or rough cast. 

A wall built to hold back or retain a bank of soil. 

The top of the roof where two slopes meet. 

A shaped tile placed along the ridge. 

A felt used for covering roofs before laying battens. 

A rough render finish to external walls, usually made with gravel. 

Rolled steel joist used for supporting upper load-bearing walls above wide opening. 

The final layer of a solid floor, often comprised of sand and cement. Not necessarily used as a wearing coat. 

Sinking of foundations. 

Granite used for pavings. 

The piece of timber at the bottom of a window sill. 

Final coating of plaster, usually Gypsum but could be Lime, in order to achieve a finished surface. 

A board fixed to the bottom of a wall at joint of wall and floor. 

A window in the slope of a roof. 

A low wall built to support ground-floor joists. Usually has brick spaces, called 'honeycombs' left in it to aid ventilation. 

Lead strips to provide water-proof joint between a roof slope and adjoining wall. 

A course of brickwork that projects beyond the face of an external wall 

A coating applied to a vertical surface to prevent penetrating moisture entering. Can be cementitious, asphalt or proprietary plastic membrane. 

A timber fillet fixed at eaves to raise the edge of the first row of slates. 

Strips of lead or other metal used to secure the edge of flashings or to hold slipped slates in position. 

Close fitted boards where the edge of one board fits into a groove of the adjoining board. 

As in roof truss, i.e. timbers framed together off site 

To strengthen existing walls and foundations 

The junction between two sloping-roof planes 

Usually of metal to join inner and outer skins of a cavity wall. 

Timber placed on a wall to receive floor joists or roof rafters.
 

A board fixed to the bottom of a door on the outside to prevent rain driving in. 

Holes at the base of walls to allow moisture to drain out