Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-11R - State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation Code, Residential › Section 51-11R-20218 - Section R20218-R

Current through Register Vol. 24-14, July 15, 2024
READY ACCESS (TO).
That which enables a device,
				appliance, or equipment to be directly reached without requiring the removal or
				movement of any panel or similar obstruction.
RENEWABLE ENERGY CERTIFICATE (REC).
An instrument
				that represents the environmental attributes of one megawatt hour of renewable
				energy; also known as an energy attribute certificate (EAC).
RENEWABLE ENERGY RESOURCES.
Energy derived from
				solar radiation, wind, waves, tides, landfill gas, biogas, biomass, or
				extracted from hot fluid or steam heated within the earth.
REPAIR.
The reconstruction or renewal of any part
				of an existing building for the purpose of its maintenance or to correct
				damage.
REROOFING.
The process of recovering or replacing
				an existing
roof covering
. See "Roof recover" and "Roof
				replacement."
RESIDENTIAL BUILDING.
For this code, the following
				building types are residential buildings:
1. Detached one- and two-family
			 dwellings.
2. Multiple
			 single-family dwellings (townhouses).
3. Group R-3 occupancy areas in buildings
			 three stories or less in height above grade plane whose
dwelling
			 units
are accessed directly from the exterior.
4. Group R-2 occupancy areas in buildings
			 three stories or less in height above grade plane whose
dwelling
			 units
are accessed directly from the exterior.
5. Accessory structures to residential
			 buildings. Group R-2 buildings with
dwelling units
accessed
			 from interior corridors or other interior spaces are not
residential
			 buildings
.
ROOF ASSEMBLY.
A system designed to provide
				weather protection and resistance to design loads. The system consists of a
				roof covering and roof deck or a single component serving as both the roof
				covering and the roof deck. A roof assembly includes the roof covering,
				underlayment and roof deck, and can also include a thermal barrier, an ignition
				barrier, insulation or a vapor retarder.
ROOF RECOVER.
The process of installing an
				additional roof covering over a prepared existing roof covering without
				removing the existing roof covering.
ROOF REPAIR.
Reconstruction or renewal of any part
				of an existing roof for the purposes of its maintenance.
ROOF REPLACEMENT.
The process of removing the
				existing roof covering, repairing any damaged substrate and installing a new
				roof covering.
R
-VALUE (THERMAL RESISTANCE).
The inverse of the time rate of heat flow through a body from one of its
				bounding surfaces to the other surface for a unit temperature difference
				between the two surfaces, under steady state conditions, per unit area
				(
h
. ft2. °F/Btu)
				[(m2. K)/W].
Reviser's note:
The brackets and enclosed
				  material in the text of the above section occurred in the copy filed by the
				  agency and appear in the Register pursuant to the requirements of
				  RCW
				    34.08.040.
Statutory Authority:
				  RCW
				    19.27A.020,
				  19.27A.045 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-055, §
				  51-11R-20218, filed 2/1/13, effective 7/1/13.
Reviser's note:
The brackets and enclosed
				  material in the text of the above section occurred in the copy filed by the
				  agency.