radial arm saw
radiant barrier
Radiant City
radiant floor
radiant heating system
rafter angle square
rain barrer
random orbital sander
razor saw
reaction turbine
recessed downlights
reciprocating saw
recycled-content shingles
RECYCLING AND WASTE DISPOSAL
reflective insulation
reflector lamp
refrigerator efficiency tips
refuse-derived fuel (RDF)
regenerative fuel cell
renewable energy
resistor
reversing valve
rigid fiber board insulation
rock pick
roof coatings
roof overhang
roofing
roofing, asphalt
roofing, concrete and tile
roofing, metal
roofing, recycled content
roofing, single-ply
roofing, wood shake
roof-mounted solar power system
ROOFS AND ROOFING MATERIALS
rotary hammer drill
rotary reciprocating saw
rotor
Roto-Split
rubber mallet
Rumford fireplace
runoff
Russian fireplace (masonry stove)
R-value