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Glossary

Roys Sheds glossary of terms frequently encountered when purchasing a shed kit. This section aims to help customers understand what they are purchasing.

TermDefinition
ApexThe top of the roof and the highest point of the building.
BayThe distance between columns.
BMTBase Metal Thickness. Roys Sheds uses sheeting which is a minimum of 0.42mm and our Flashings are 0.55mm.
ChemsetA masonry anchor which is stronger than Dyna Bolts; used where greater strength is needed. These use a short-threaded rod stud and a two-part epoxy chemical to glue the stud into the concrete.
CladdingThe steel sheeting that make up the walls and roof of the shed.
ColumnColumns are a structural beam which run from the slab to the rafters supporting the roof and walls. They are C sections.
EavesThe top of the walls. Shed height is designated from the eaves.
FlashingFlashings are strips of steel which weather proof your building, and cover cut edges of sheeting to give a safer and or aesthetic finish.
FootingThe base foundation part of the shed which the support columns fix to.
Gable RoofTwo sides of a roof come together to form a triangle/ pitched roof.
GirtsGirts are the metal battens that run on the outside of the columns, strengthening the building.These are what the wall sheets fix to.
Haunch ConnectionHaunch Connections are at the point where columns and rafters are connected using a haunch bracket.
InsulationInsulation provides a building with a way to keep the internals comfortable for its occupants. It is used to maintain a consistent and bearable environment within a building. Insulation on sheds is normally done during construction and sits between the purlin/girts and the cladding.
KneeA steel section that connects between the column and rafter to add additional strength to the haunch connection.
Mezzanine FloorA full or partial second floor in a shed.
MullionsMullions are columns in the gable end walls which share the load with the girts to support the wall sheeting.
PA DoorPersonal Access Door. A normal sized door designed for quick access to your shed.
PurlinsPurlins are the metal battens that are fixed onto the rafters. These are what the roof sheets fix to.
RaftersRafters are beams that run from the apex to the gutter. They create the roof frame and support purlins that the roof sheeting fixes to.
Ridge VentsRidge vents are located along the Apex of the shed. They are like a raised Ridgecap Flashing that allows airflow while still blocking rain from getting in.
Roller DoorsRoller doors move up from the ground and curl at the top. Smaller doors (series A and AA) are operated manually from the outside and larger doors (series B) are chain operated from the inside. Both types of doors can be automated.
Scissor LiftA Scissor Lift is a vehicle which raises builders to work safely at heights.
Skillion RoofA Monosloped roof or, a roof with one side.
SkylightAn opaque sheet which allows natural light into the shed via the roof.
SlabA slab references the Concrete Slab which makes up the base of a shed.
Sliding DoorsThese doors can slide right or left from a supportive top track.
Strap BracingBracing provides strength, stability and prevents movement. The amount and type of bracing is determined by shed size, location, terrain, wind loading and design.
Tek ScrewA type of screw that has a drill-shaped point that can drill through metal. Used to join sheet metal onto purlin/girts as well as some other structural connections.
TieA steel section that connects between the two rafters on a gable roof shed to add additional strength to the apex connection.
Vermin SealVermin Seal is a type of flashing which lines the base of the shed, preventing small animals from entering.
Whirly BirdAn air-driven roof vent.

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