Conceal-Fixed Roofing: See Roofing Profiles

Concealed-fastened: A method of fixing cladding by means of hidden, fixing clips or brackets (sometimes called secret fixing).

Corodek®: See Roofing Profiles

Corrugated Roofing: See Roofing Profiles

Custom Folded Barge Capping: Examples of custom made flashings below.  See Barge for definition.


Custom Blue Orb®: See Roofing Profiles

Custom Orb®: See Roofing Profiles

Dormer Roof: Roof over a dormer protruding from the sloping roof surface.

Downpipe: A pipe to carry roof water from gutters and roof catchments to drains or storage tanks.

Drop: A short fitting in a gutter sole, where rainwater leaves the gutter to accommodate a downpipe.

Dry Verge: Usually associated with tiles to provide a simple clean finish.  Alternatively used on a raking barge.

Dutch Gable: is a roof with a small gable, usually at the top of a hip roof.

Eaves Gutter: A roof gutter attached at an eaves overhang.

Elbow: A fitting used in a downpipe, to change direction of the downpipe by about 90 degrees.

Electrolytic (galvanic) Corrosion: Corrosion resulting from the contact of two different metals when an electrolyte (like water) is present.

Expansion Joint: A joint in a long run of cladding, gutter or flashing designed to allow for thermal expansion and contraction.

Fall (slope): The slope of the roof or gutter, often expressed in degrees, or as a ratio of vertical height to horizontal distance (e.g. 1 in 20).

Fascia (fascia board): A board, or rolled metal product of similar dimensions, fixed along the eaves, to which a gutter is secured.

First Flush Divertor: A device fitted to a downpipe preventing sediment and debris from entering a rainwater tank.

Fixings Screws: nails or clouts used to fasten cladding to a building structure.

Flashing: A material, usually metal, used to waterproof the junction between two intersecting roof and/or wall surfaces. At a masonry wall, it is often built into the mortar.
Apron Flashing - A flashing used to obtain a weathertight joint, usually where a roof abuts a vertical wall.
Counter (or over) Flashing - A flashing dressed down as a cover only, over a separate upstand.
Hanging Flashing - Side front or back cover piece used to prevent entry of water between abutting surfaces and other gutters, flashings and soakers.
Soaker Flashing - A side cover piece extended over a roof cover and overflashed with a hanging flashing.

Gable Roll: A rolled finish used on barges as an alternative to custom folded barge capping on corrugated roofs.

Gable Roof: A sloping roof running over either side of the generally triangular portion of a wall known as a Gable.

Galvanized Steel: Steel sheeting protected against corrosion by a zinc coating applied by the continuous hot-dip process.

Girth: The width of the blank strip from which a profile is rolled (usually refers to gutters and flashings).

Gutter: A channel that collects roof water and carries it to an outlet.

Gutter Profiles: This link will take you to our Gutter Profiles Page

Hi-Ten: See Roofing Profiles

Hip Roof: is a type of roof where all sides slope downwards to the walls, usually with a fairly gentle slope.

Klip-Lok 700® Hi-Strength: See Roofing Profiles

Longspan®: See Roofing Profiles

Mansard: A roof built at two pitches, the steeper pitch commencing at the eaves and the flatter pitch finishing at the ridge.

Maxirib®: See Walling Profiles

Metrospan®: See Roofing Profiles

Mini Orb®: See Walling Profiles

Mini Corry®: See Walling Profiles

Monoclad®: See Roofing Profiles

Nozzle: See Drop.

Offset: A pipe fitting that directs a downpipe from the gutter, under the eaves soffit and down a wall.

Oilcanning: Variation from flatness of sheet metal, creating undulations along the surface. The result is poor appearance and potential ponding.

Pan: The flat portion between the ribs in a pan-type preformed sheet.

Parapet: A wall on the perimeter of a building that projects above the line of the eaves.

Penetration: A projection through the roof, e.g. vent pipe, chimney or rooflight.

Pierce-fastened: A method of fixing cladding by means of a screw or nail which pierces the cladding.

Pitch: see Fall.

Ponding: Pooling of undrained water on a roof.

Pop: See Drop

Prospan: See Roofing Profiles

Rainwater Head/Rainhead: A box-shaped receptacle sometimes used between gutters and downpipes to provide an external overflow point.

R-value: A value given for the resistance to heat transfer of a roof or wall system.

Rib: A longitudinal upstand in cladding.

Ridge Capping: Formed metal designed to weatherproof the junction at the apex of opposing roof slopes.

Roofing Profiles: This link will take you to our Roofing Profiles Page

Saddle Strap: See Straps.

Sarking: A membrane to collect and discharge clear of the structure any water that may penetrate a roof or wall cladding.

Shoe: A fitting used in a downpipe, to change direction of the downpipe by about 45 degrees.

Skillion Roof: normally a single sloping roof surface, not attached to another roof surface.

Smartspan®: See Roofing Profiles

Soaker (gutter): A small gutter located on the upper side of a chimneystack.

Soaker (flashings): Formed metal designed to weatherproof the perimeter of roof protrusions or penetrations. Soaker flashings are usually positioned under rather than over the surrounding metal roof.

Sole: The internal, bottom surface of a roof gutter.

Spandek®: See Roofing Profiles

Spigot: See Pop.

Spreader: A downpipe-tee or elbow fixed at 90 degrees to the roof slope used to spread stormwater over a greater area of the roof.

Spouting: See Gutter.

Straps: A metal band used to secure a downpipe to a wall.

Sump: A roof gutter pit used to connect downpipes to internal roof gutters.

Superdek®: See Roofing Profiles

Thermal Stress: Stress due to expansion and contraction caused by changes in temperature.

Topdek® 700: See Roofing Profiles