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Riser

Each of the vertical boards closing the spaces between the treads of stairways. Vertical face of a step supporting the tread in a staircase.

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Riser, Plumbing

A water supply running vertically through the building to supply water to the various branches and fixtures on each floor.

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Rise

The vertical distance from the eaves line to the ridge. Also the vertical distance from stair tread to stair tread (and not to exceed 7 Â½"). Measurement in height of an object; the amount it rises. The converse is "fall."

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Rivet

A metal fastener used to hold metal plates by passing through holes in each and having a head formed on the protruding end.

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Rigid Frame

A structural framework in which the beams and columns are rigidly connected (no hinged joints).

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Riser and panel

The exterior vertical pipe (riser) and metal electric box (panel) the electrician provides and installs at the "Rough Electric" stage.

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Risk

The likelihood that a living organism will be harmed if exposed to a hazard. https://healthymaterialslab.org/tool-guides/hml-resources

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Rim joist

A joist that runs around the perimeter of the floor joists and home.

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Ridge shingles

- Shingles used to cover the ridge board.

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Road base

- A aggregate mixture of sand and stone.

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Roll, rolling

To install the floor joists or trusses in their correct place. (To "roll the floor" means to install the floor joists).

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Roll roofing

Asphalt roofing products manufactured in roll form. 36-inch wide rolls with and 108 square feet of material. Weights are generally 45 to 90 pounds per roll.

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Romex

A name brand of nonmetallic sheathed electrical cable that is used for indoor wiring. A nonmetallic-sheathed electric cable of type NM or NMC.

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Rock Anchor

A post-tensioned cable or steel rod inserted into a hole drilled in rock and grouted in place.

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Roof Drain

A drain on the roof to carry away water to a downspout.

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Roof Planks

Precast gypsum concrete members used for decking roofs.

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Roof joist

- The rafters of a flat roof. Lumber used to support the roof sheeting and roof loads. Generally, 2 X 10's and 2 X 12's are used.

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Roof sheathing or sheeting

The wood panels or sheet material fastened to the roof rafters or trusses on which the shingle or other roof covering is laid.

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Rock 1, 2, 3

When referring to drywall, this means to install drywall to the walls and ceilings (with nails and screws), and before taping is performed.

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Roof jack

Sleeves that fit around the black plumbing waste vent pipes at, and are nailed to, the roof sheeting.