Page 113 - 2018 National Home Improvement

2018 National Home Improvement Estimator, All Rights Reserved Page 91

Slant-back aluminum roof louver. 60-square-inch net-free venting area.
18" x 20', black BC@1.00 Ea 14.04 40.26 54.30
18" x 20', brown BC@1.00 Ea 14.04 40.26 54.30
18" x 20', mill BC@1.00 Ea 11.92 40.26 52.18
18" x 20', shingle match weathered wood BC@1.00 Ea 10.30 40.26 50.56

Aluminum wall louver vent.
12" x 12" BC@.450 Ea 10.81 18.12 28.93
12" x 18" BC@.450 Ea 12.93 18.12 31.05
14" x 24" BC@.450 Ea 20.10 18.12 38.22
18" x 24" BC@.450 Ea 23.33 18.12 41.45

Galvanized wall louver vent.
12" x 12" BC@.450 Ea 9.54 18.12 27.66
12" x 18" BC@.450 Ea 11.92 18.12 30.04
14" x 24" BC@.450 Ea 15.66 18.12 33.78

Plastic wall louver vent.
8" x 8" BC@.450 Ea 5.73 18.12 23.85
12" x 12" BC@.450 Ea 6.58 18.12 24.70
12" x 18" BC@.450 Ea 8.70 18.12 26.82
18" x 24" BC@.450 Ea 14.65 18.12 32.77

Aluminum midget louver. For venting eaves and soffits.
2", vent area 1-3/16" BC@.440 Ea 2.10 17.71 19.81
3", vent area 1-3/4" BC@.440 Ea 2.87 17.71 20.58
4", vent area 3-1/2" BC@.440 Ea 3.86 17.71 21.57

Combination attic vent.
12" x 12", brown BC@.450 Ea 11.41 18.12 29.53
12" x 12", galvanized BC@.450 Ea 9.09 18.12 27.21
12" x 12", white BC@.450 Ea 11.41 18.12 29.53
12" x 18", brown BC@.450 Ea 12.83 18.12 30.95
12" x 18", white BC@.450 Ea 12.83 18.12 30.95
14" x 24", brown BC@.450 Ea 14.34 18.12 32.46
14" x 24", galvanized BC@.450 Ea 12.83 18.12 30.95
14" x 24", white BC@.450 Ea 14.14 18.12 32.26

Ventilators

Roof turbine vent with base.
12", galvanized SW@1.00 Ea 34.64 45.33 79.97
12", weathered wood SW@1.00 Ea 46.97 45.33 92.30
12", white aluminum SW@1.00 Ea 71.41 45.33 116.74
Add for steep pitch base SW@.440 Ea 12.93 19.95 32.88
Add for weather cap --@.000 Ea 11.41 -- 11.41

Belt drive attic exhaust fan. 1/3 HP, with aluminum shutter and plenum boards.
30" diameter SW@3.00 Ea 337.34 136.00 473.34
36" diameter SW@3.00 Ea 334.31 136.00 470.31
12-hour timer switch BE@.950 Ea 35.25 41.46 76.71