the term "ridge" refers to the highest point or the top edge of a roof where two sloping roof planes meet. It is the horizontal line that runs along the top of the roof, forming the peak or apex. The ridge is an essential component of a roof's structure, as it provides stability and support to the roof framing.

See "pitch"

See "truss"

root barrier is a versatile solution designed to control and manage the growth of tree and plant roots in Australian commercial construction projects . It is a physical barrier installed in the soil to prevent tree roots from spreading into areas that can cause damage to structures, such as foundations, walls, pipes, and other underground infrastructure

"rough sawn" refers to timber that has been cut from a log using a sawmill but has not undergone any further processing to smooth or plane the surface. This type of timber retains a coarse texture and visible saw marks, giving it a more rustic and natural appearance. Rough sawn timber is often used for structural purposes, where the appearance is not a primary concern, or in applications where a rugged aesthetic is desired. It is typically less expensive than dressed or finished timber, as it requires less processing. However, because it is not planed or sanded, rough sawn timber may require additional work if a smoother finish is needed for specific applications.

an "S-trap" refers to a specific type of plumbing trap used in drainage systems. An S-trap is designed to prevent sewer gases from entering buildings through the plumbing fixtures. It is named for its shape, which resembles the letter "S."

In the context of Australian commercial construction projects, "sapwood" refers to the younger, outermost wood found just beneath the bark of a tree. It is typically lighter in color compared to the inner heartwood and is responsible for the transport of water and nutrients from the roots to the leaves.

Sarking, in the context of Australian commercial construction projects, refers to a strong and pliable membrane installed under tiled and metal roofs . It acts as a protective second skin under the roof, providing an additional layer of defense against various environmental factors

In Australian commercial construction projects, a "sash" typically refers to the movable part of a window that holds the glass panes and allows for opening and closing. It is the frame that holds the glass and is often made of wood, aluminum, or vinyl. The sash can be single-hung (where only the bottom part moves) or double-hung (where both the top and bottom parts move). In commercial construction, sashes are designed for durability, energy efficiency, and ease of maintenance. They may also include features such as weatherstripping, locking mechanisms, and insect screens to enhance their performance and functionality.

In the context of Australian commercial construction projects, "scabble" refers to a specific surface preparation technique. Scabbling is a process used to roughen or shape concrete surfaces. This is typically done to prepare the surface for additional treatments, coatings, or to ensure better adhesion of new concrete or other materials. The process involves using a scabbling machine or hand tools to chip away at the concrete surface, creating a rough texture. This technique is often employed to remove laitance, level uneven surfaces, or expose aggregate for aesthetic or functional purposes.

In the context of Australian commercial construction projects, "scantlings" refer to the dimensions or sizes of structural elements, such as beams, columns, joists, and other framing components. These dimensions are critical for ensuring that the structural elements can support the loads and stresses they will encounter during the building's use. Scantlings are typically specified in architectural and engineering plans and are determined based on factors such as material properties, load requirements, building codes, and safety standards. Proper specification and adherence to scantlings are essential for the structural integrity and safety of a construction project.

In the context of Australian commercial construction projects, "scarfing" typically refers to a technique used in the preparation and joining of materials, particularly steel or timber. Scarfing involves creating a beveled or angled edge on a material so that it can be joined seamlessly with another piece. This technique is often used to ensure a strong and smooth connection between materials, which is crucial for structural integrity and aesthetic purposes.

In the context of Australian commercial construction projects, a schedule refers to a detailed document that outlines the scope of work, timelines, and costs associated with a project . It is a critical component of the project documentation, which includes various documents such as plans, specifications, and other essential information necessary for guiding every aspect of the construction process

a screed refers to a thin layer of material, typically a mixture of cement, sand, and water, applied to a concrete subfloor or base to create a smooth, level, and stable surface

Scribing, in the context of Australian commercial construction projects, refers to the process of collecting information from a computer model and then automatically transferring it by marking the locations and part marks to the relevant materials or components . This process is often used to ensure accurate placement and installation of various building elements, such as frames, moulding components, and other connecting members.