Alphabetical list

Number of terms found = 433. Displaying page 1 out of 22.

3 way Intersection

Where 3 (three) different points of the roof meet, otherwise known as a Mitre joint

Abrasion Resistance

A glazed floor tile’s ability to withstand friction. Classifications range from 1 – 5 and are known as PEI ratings.

Absorption

Porosity of a tile determines its frost resistance and its resistance to staining. The higher the water absorption, the greater the expansion in wet or damp conditions.

Abutment

The sloping intersection of a roof surface against a vertical structure protruding through the roof slope.

Acid Resisting

Floor or wall tiling that is resistant to acid attack and relates to bedding and jointing as well as the tile itself.

Additives

Styrene Butadiene or acrylic polymers incorporated at factory or added separately to adhesives on site to increase bond strength and flexibility.

Adhesive

Ready mixed, usually pva or acrylic or cement based powders mixed on site with water and additives for use on walls and floors.

Angle Bead

An increasingly historic item, usually glazed and used as a finish to external angles. A coved version was used for internal angles and floors.

Angle Corbels:

The process of corbelling (projecting) a quoin, and occasionally an internal angle, to change its shape; often used just below first floor level. The corbelling of courses can change a squint (splayed) to square; circular to square or squint. A square quoin can be reduced to a splayed, or circular one, by use of plinth bricks; care is needed with the bonding arrangement and demands good craftsmanship.

Angle Grinder

Electric or petrol power tool for cutting large section tiles

Anhydrite Screed

A form of pumped self levelling screed based on calcium sulfate which can produce screeds of high final strength and minimal shrinkage. It can accept tiling subject to correct preparation and adequate drying.

Apron:

Projecting panel below a window sill. The panel may be ornamented or of a contrasting brick.

Arcade:

Series of arches supported by piers or columns.

Arris

The sharp edge between two adjacent surfaces of a brick.

Ashlar Slab

Term used in faience work to describe large glazed slabs that were similar in appearance to constructional faience but which were applied or fixed as tiles with mortar backing and mechanically cramped back into the structure.

Attached Pier:

A pier projecting from a wall face, which thickens it for the width of the pier, and is bonded into the wall.

Axed Arch:

Describes the construction when the wedge shaped voussoirs are cut with a hammer and bolster and trimmed with a scutch hammer. This method is usually restricted to semi-circular or segmental arches using the same facing bricks as the general walling.

Back buttering

When a substrate is not completely flat or a tile has deep indentations, additional adhesive is applied to the tile back.

Back Gutter:

A flat lead gutter, about 125mm wide, formed between the back of the chimney and the slope of the roof covering to waterproof the junction and drain water away; a cover flashing is used to seal the joint between gutter and chimney.

Back-to-Back:

Term used to describe the construction of two fireplaces when the back wall of the recess is common to both. If within the same building the separating wall must not be less than 100mm thick but if Back-to-Back in adjoining buildings the wall must not be less than 200mm thick.