See subsection 8-3-8H of this chapter.
A. Wood Siding:
1. Use well seasoned material. Moisture content not to exceed 15%.
2. Nails at each bearing with hot dipped galvanized or cement coated nails.
3. Beveled siding: Finish dimensions to comply with the following limitations as to minimum top and butt thickness:
Nominal Width | Thickness At Top | Thickness At Butt |
4" to 6" | 3/16" | 7/16" |
8" | 3/16" | 9/16" |
10" to 12" | 3/16" | 11/16" |
Minimum headlap:
1" for 4" width
11/4" for widths over 4"
Nail near butt only (do not nail through board underneath).
4. Rustic and drop siding: Minimum thickness: 3/4" (finished). Maximum width: 8" (nominal).
5. Shiplap or matched siding: Minimum thickness: 3/4" (finished). Maximum width: 12" (nominal). Triple nail all boards over 8" width. When boards are applied vertically, edges must be painted prior to installation.
B. Wood Shingle Siding:
1. Shingle grades: Single course siding, no. 1, or no. 2. Double course siding, no. 1 for exposed shingles. Under course may be no. 1, or no. 2.
2. Minimum size: Length: 16"; (thickness: 5 butts in 2"). Length: 18"; (thickness: 5 butts in 21/4"). Length: 24"; (thickness: 4 butts in 2").
3. Maximum exposure:
Shingle Length | Single Course Exposure | Double Course Exposure |
16" | 71/2" | 12" |
18" | 81/2" | 14" |
24" | 11" | 16" |
4. Nailing: Nails: Copper, or, hot dipped galvanized. Butt nail double coursing (exposed nails may be small headed).
C. Asbestos-Cement Siding And Shingles: See subsection 8-3-8J4b of this chapter.
1. Material: (See section 8-3-24, appendix A, of this chapter.)
2. Application: Apply clapboards and shingles in accordance with manufacturer's recommendations.
3. Nails: Noncorrodible. Minimum thickness: 1/8".
D. Plywood:
1. Material: All panels shall be identified by a grade mark or certificate of inspection. All panels shall be in compliance to the United States department of commerce standard DOC-1 (construction and industrial plywood) or United States department of commerce standard DOC-2 (performance standard for wood-based structural-use panels).
2. Grade Mark: Grade mark, for exterior use, on each sheet of plywood.
3. Sheathed Walls: Plywood, 3/8" may be used on sheathed walls. If sheathing other than wood is used, install solid blocking between studding as provided in subsection D4 of this section.
4. Installation:
a. Protect edges, prior to erection, with water resistant paint, or approved sealer.
b. Vertical joints: To occur over studs.
c. Horizontal joints: Install solid blocking between studding for nailing.
d. Corner boards: Apply over plywood or butt plywood against boards at all corners.
e. Nails: Cement coated or hot dipped galvanized, flat head. Minimum spacing: On edge: 6" on center; at intermediate bearings: 12" on center.
E. Stucco: (See subsections 8-3-8F9 and H5 of this chapter.)
1. Lath for stucco: (See section 8-3-24, appendix A, of this chapter.)
a. Wood Lath: Wood lath not acceptable. Expanded metal lath, painted; with large openings; 1.8 pounds per square yard.
b. Nails: Electrolytic zinc coated furring nails.
c. Metal Lath: Held at least 1/4" away from sheathing. Furring strips not permitted.
d. Material: (See sections 8-3-4 and 8-3-24, appendix A, of this chapter.)
e. Mixture: 1 part Portland cement, 3 parts sand, and hydrated lime equal to 10% of cement by volume; or prepared Portland cement stucco, used in accordance with manufacturer's recommendations.
f. Thickness: 3 coat work; 1" total. 2 coat work; 3/4" total.
g. Application: 3 coat work; over wood frame. 2 coat work; over masonry surfaces. Finish coat may be trowel coat of prepared exterior Portland cement stucco. Thoroughly cover and embed lath in stucco. Keep wet 2 days after application of each coat. Drying time before application of finished coat: 7 days. Stucco not to be applied when temperature is lower than 4° Fahrenheit.
F. Exterior Weather Boarding, Veneer And Condensation: To secure weather tightness in framed walls and other unoccupied spaces, the exterior walls shall be faced with an approved weather resisting covering properly attached to resist wind and rain. The cellular spaces shall be so ventilated as not to vitiate the fire stopping at roof, attic and roof levels or shall be provided with interior noncorrodible vapor type barriers complying with the approved rules; or other means shall be used to avoid condensation and leakage of moisture. The following materials shall be acceptable as approved weather coverings of the nominal thickness specified:
Aluminum clapboard siding | 0.024" |
Asbestos-cement boards | 1/8" |
Asbestos shingles | 5/32" |
Brick masonry veneers | 2" |
Clay tile veneers | 1/4 to 1" |
Exterior plywood (with sheathing) | 5/16" |
Formed steel siding | 29-gauge (0.017") |
Hardboard siding, vinyl siding | 1/4" |
Precast stone facing | 5/8" |
Protected fiberboard siding | 1/2" |
Stone veneers | 2" |
Stucco or exterior plaster | 3/4" |
Wood shingles | 3/8" |
Wood siding (with sheathing) | 1/2" |
Wood siding (without sheathing) | 5/8" |
G. Metal Siding:
1. Aluminum clapboard siding:
Thickness: 0.024" minimum.
Thickness: 0.024" may be unbacked only when the flat areas are 5" or less in the narrow dimension.
2. Formed steel siding: Thickness: 29-gauge, minimum.
H. Protected Combustible Fiberboard Siding: Minimum thickness: 1/2".
I. Hardboard, Masonite And Vinyl Siding: When meeting requirements as set forth in section 8-3-24, appendix A, of this chapter, but with a minimum thickness of 1/4" and providing required outside sheathing is first installed on outside of studs.
J. Manufactured Brick Siding: Install as per manufacturer's specifications. (Ord. 2008-09-01, 9-24-2008)