SPS 327.33(3)(c)1.1. Any joints between 2 pieces of flashing that form a vertical joint shall be lapped a minimum of 6 inches and sealed.
SPS 327.33(3)(c)2.
2. Any joints between 2 pieces of flashing that form a horizontal joint shall be lapped a minimum of 2 inches and sealed unless otherwise specified by the flashing manufacturer.
SPS 327.33(3)(c)3.
3. Sealants used for flashing shall be exterior grade and shall be compatible with the materials being sealed.
SPS 327.33(3)(d)
(d) Flashing shall be provided at all of the following locations:
SPS 327.33(3)(d)1.
1. At the top of all exterior door and window openings, unless using self-flashing windows that provide at least one inch of flashing around the opening, including the corners.
SPS 327.33(3)(d)2.
2. At the intersection of chimneys or other masonry construction with frame walls.
SPS 327.33(3)(d)5.
5. Where porches, decks, or stairs attach to a wall or floor assembly of wood frame construction.
SPS 327.33 Note
Note: Flashing placed along the bottom of a door opening that is elevated above-grade can subsequently accommodate adding a deck outside the door.
SPS 327.33(3)(e)
(e) For a roof that intersects with an upper-lying head wall and rake wall, such as where a dormer is provided, the vertical metal flashing along the rake wall shall extend down the roof at least one-half inch past the vertical flashing on the head wall.
A head wall as addressed in this paragraph intersects a sloping roof at a horizontal line along the top of a roof segment. A rake wall intersects a sloping roof along the side of a roof segment.
SPS 327.33(3)(f)
(f) For a roof eave that intersects with a sidewall, the end of the roof flashing shall be installed so that it diverts water away from the sidewall and onto the roof or into the gutter.
SPS 327.33(4)(a)1.1. Exterior walls of wood or metal frame construction shall be provided with a water-resistive barrier from the highest point to the bottom of the permanent weather-resistant covering.
SPS 327.33 Note
Note: Acceptable water-resistive barrier materials include polymeric-based house wraps and spray-applied water-resistive barriers installed per the manufacturer's instructions, #15 or greater asphalt-saturated felts that comply with ASTM D 226 for type I felt and extruded foam sheathing with permanently taped joints. Duct tape or similar materials will not result in a permanently taped joint.
SPS 327.33(4)(a)2.
2. Structural products with an integral water-resistive barrier may be approved as a complete assembly.
SPS 327.33(4)(b)
(b)
Material compatibility. The water-resistive barrier material shall be compatible with the other materials in the wall with which it will come into contact.
SPS 327.33 Note
Note: Spray-applied water-resistive barriers may not be compatible with foam plastic insulation.
SPS 327.33(4)(c)1.1. Polymer-based house wraps shall meet all of the following requirements:
SPS 327.33(4)(c)1.a.
a. A water vapor permeability rating of 5 perms or higher when tested in accordance with ASTM E96.
SPS 327.33(4)(c)1.b.
b. An acceptable water-resistance rating determined in accordance with ASTM D779, AATCC 127 or CCMC 07102.
SPS 327.33 Note
Note: Asphalt-saturated felt or “tar paper" is not a polymeric-based house wrap.
SPS 327.33 Note
Note: For more information on the water-resistance tests and their results, see the International Code Council Evaluation Services Acceptance Criteria AC 38.
SPS 327.33(4)(c)2.
2. Spray-applied water-resistive barriers shall be approved under the International Code Council Evaluation Services.
SPS 327.33 Note
Note: For approval criteria, see ICC-ES acceptance criteria AC 212 or successor document.
SPS 327.33(4)(d)1.1. Horizontal seams in sheet or strip material shall be overlapped such that the upper layer extends over the lower layer at least 2 inches.
SPS 327.33(4)(d)2.
2. Vertical seams in sheet or strip materials shall be overlapped at least 6 inches.
SPS 327.33(4)(e)1.1. Penetrations caused by fasteners of the water-resistive barrier or the weather-resistant exterior covering do not require sealing.
SPS 327.33(4)(e)2.
2. Penetrations of 5 square inches or less with an annular space of no more than 1/2 inch shall be sealed with caulk or similar material.
SPS 327.33(4)(e)3.
3. Penetrations of greater than 5 square inches shall be flashed in accordance with
sub. (3).
SPS 327.33 History
History: EmR1703: emerg. cr., eff. 2-6-17;
CR 17-017: cr.
Register March 2018 No. 747, eff. 4-1-18.
SPS 327.34
SPS 327.34 Wood frame walls. Unless designed through structural analysis, wood frame walls shall comply with the following requirements:
SPS 327.34(1)
(1) Stud configuration. Studs in the exterior walls shall be placed with the wide faces perpendicular to the plane of the wall.
SPS 327.34 Note
Note: See s.
SPS 327.28 for requirements on treating wood for decay and termite resistance.
SPS 327.34(2)(a)(a)
General. Except as allowed under
par. (c), top plates shall be provided and configured as follows:
SPS 327.34(2)(a)2.
2. End joints in double top plates shall be offset at least 2 stud spaces.
SPS 327.34(2)(a)3.
3. Double top plates shall be overlapped at the corners and at intersections of partitions.
SPS 327.34(2)(a)4.
4. The plate immediately above the stud may have a joint only when directly over the stud.
SPS 327.34(2)(b)1.1. When piping or ductwork is placed in an exterior wall or an interior load-bearing wall, such that at least half of the top plate is removed, the plate shall be reinforced with a steel angle at least 2 inches by 2 inches by 20 gauge thick.
SPS 327.34 Note
Note: 20 gauge is approximately 0.036 inch.
SPS 327.34(2)(b)2.
2. The steel angle shall span the gap and extend at least to the midpoint of the adjacent stud spaces.
SPS 327.34(2)(c)1.1. A single top plate may be used in place of a double top plate provided a rafter is located directly over the studs and the plate is securely tied at the end joints, corners and intersecting walls. Joints may occur in single top plates only when directly over a stud.
SPS 327.34(2)(c)2.
2. A continuous header, consisting of two 2-inch members set on edge, may be used in lieu of a double plate if tied to the adjacent wall.
SPS 327.34(3)(a)(a)
Headers. Where doors or windows occur, headers shall be used to carry the load across the opening.
SPS 327.34(3)(b)
(b)
Header support. Headers in bearing walls shall be supported in accordance with the following:
SPS 327.34(3)(b)1.
1. Headers 3 feet or less in length shall be directly supported on each end by one of the following:
SPS 327.34(3)(b)2.
2. Headers greater than 3 feet but less than or equal to 6 feet in length shall be directly supported on each end by the single common stud and a shoulder stud.
SPS 327.34(3)(b)3.
3. Headers greater than 6 feet in length shall be directly supported on each end by the single common stud and 2 shoulder studs.
SPS 327.34(4)
(4) Notching. Notching and boring of columns or posts is prohibited unless designed through structural analysis. Studs shall not be cut or bored more than 1/3 the depth of the stud, unless the stud is reinforced.
SPS 327.34(5)
(5) Partitions. Load-bearing partitions shall be placed over beams, girders, or other load-bearing partitions. Load-bearing partitions running at right angles to the joists shall not be offset from the main girder or walls more than the depth of the joist unless the joists are designed to carry the load.
SPS 327.34(6)(a)2.
2. Posts and columns shall bear directly over the middle 1/3 of a footing.
SPS 327.34(6)(a)3.
3. Posts and columns shall be restrained at the top and bottom to resist displacement.
SPS 327.34(6)(a)4.
4. All columns shall be positively attached to the beams they support using clips, straps or saddles.
SPS 327.34(6)(a)5.
5. Posts and columns that use a height adjustment mechanism shall have the mechanism imbedded in concrete or permanently disabled after installation.
SPS 327.34(6)(b)
(b)
Bearing surface. Posts and columns shall have a steel bearing plate affixed to one or both ends to distribute any applied loads and to prevent fiber crushing of any structural member being supported.
SPS 327.34(6)(c)
(c)
Steel posts or columns. Steel posts or columns shall be sized according to one of the following methods:
SPS 327.34(6)(c)1.
1. Manufactured columns shall follow the manufacturer's testing and listing.
SPS 327.34(6)(c)2.
2. Columns made of steel stock, not meeting the requirements of
subd. 1., shall follow a nationally accepted design specification or the size shall be determined through structural analysis or load testing.
SPS 327.34(6)(d)
(d)
Wood posts or columns. Wood posts or columns shall be sized according to Table 327.34 or the size shall be determined through structural analysis or load testing.
SPS 327.34(7)(a)(a) Foundation cripple walls shall be framed with studs at least as large as the studs above.
SPS 327.34(7)(b)
(b) When more than 4 feet in height, cripple walls shall be framed with studs needed for an additional floor level.
SPS 327.34(7)(c)
(c) Cripple walls shall be sheathed on at least one side for its entire length with a wood structural panel that is fastened to both the top and bottom plates or the cripple walls shall be constructed of solid blocking.
SPS 327.34(7)(d)
(d) Cripple walls shall be fully supported by a continuous foundation.
Table 327.34
WOOD COLUMNS
Wood Nominal Size Cross Section Area Height (feet) Allowable Load (pounds)
8 4,900
4” x 4” 12 1/4” 10 3,100
