SPS 327.35(1)(c) (c) Ridge beams. Rafters shall be attached to ridge beams using engineered clips, straps, or hangers or the connection shall be designed through structural analysis.
SPS 327.35(1)(d) (d) Bearing. The required bearing for wood rafters shall be in accordance with the NDS adopted in Table 327.19-2, except in no case shall the bearing be less than 1 1/2 inches on wood or metal or less than 3 inches on masonry or concrete.
SPS 327.35(1)(e) (e) Ladders.
SPS 327.35(1)(e)1.1. In this paragraph, “ ladder” means a perpendicular projection extending beyond the face of the wall below.
SPS 327.35(1)(e)2. 2. Overhangs at gable end walls of more than 12 inches shall be provided with ladders which extend into the structure a distance no less than the length of the overhang.
SPS 327.35(1)(e)3. 3. The ladders shall be fastened at the wall.
SPS 327.35(1)(e)4. 4. The interior end of each ladder shall be attached to a rafter or truss with a hanger.
SPS 327.35(2) (2)Ceiling joists.
SPS 327.35(2)(a)(a) Ceiling joists shall be nailed to exterior walls and to the ends of rafters.
SPS 327.35(2)(b) (b) Ends of ceiling joists shall be lapped at least 3 inches and be fastened either with 3-16d nails or in accordance with the floor joist requirements under s. SPS 327.31 (4) (a) 1. c.
SPS 327.35(2)(c) (c) Where ceiling joists are placed at right angles to the rafters, the lookout joist or ties shall be fastened to the parallel ceiling joists or rafters using engineered clips, straps or hangers or the connection shall be designed through structural analysis.
SPS 327.35(3) (3)Valley and hip rafters.
SPS 327.35(3)(a)(a) Valley rafters.
SPS 327.35(3)(a)1.1. Where no bearing is provided under valley rafters at the intersection of 2 roof areas, the valley rafters shall be doubled in thickness and shall be at least 2 inches deeper than the required common rafter to permit full bearing at the beveled end.
SPS 327.35(3)(a)2. 2. Where ridges are provided at different elevations, vertical support shall be provided for the interior end of the lower ridge board or ridge beam.
SPS 327.35(3)(b) (b) Hip rafters. Where no bearing is provided under hip rafters, the hip rafters shall be of the same thickness as common rafters and shall be at least 2 inches deeper than required to permit full contact with the jack rafter.
SPS 327.35(4) (4)Roof trusses.
SPS 327.35(4)(a)(a) Metal plate connected wood roof trusses shall be designed in accordance with TPI 1 and the NDS adopted under s. SPS 327.19.
SPS 327.35(4)(b) (b) Truss members shall not be cut, bored or notched, except as allowed under sub. (5) (d).
SPS 327.35(4)(c) (c) If connection is provided to stabilize a non-load bearing wall, a slotted expansion joint or clip shall be used.
SPS 327.35(5) (5)Notching and boring.
SPS 327.35(5)(a)(a) General.
SPS 327.35(5)(a)1.1. Notching and boring of beams or girders is prohibited unless determined through structural analysis.
SPS 327.35(5)(a)2. 2. Notching and boring of ceiling joists and rafters shall comply with pars. (b) and (c).
SPS 327.35(5)(b) (b) Notching.
SPS 327.35(5)(b)1.1. Notches located in the top or bottom of ceiling joists and rafters are prohibited from all of the following:
SPS 327.35(5)(b)1.a. a. Having a depth exceeding 1/6 the depth of the member.
SPS 327.35(5)(b)1.b. b. Having a length exceeding 1/3 the depth of the member.
SPS 327.35(5)(b)1.c. c. Being located in the middle 1/3 of the span of the member.
SPS 327.35(5)(b)2. 2. Where ceiling joists or rafters are notched at the ends, the notch may not exceed 1/4 the depth of the member.
SPS 327.35(5)(b)3. 3. Bird mouth cuts may not exceed 1/3 the depth of the rafter unless the seat cut bears fully on the wall plate.
SPS 327.35(5)(c) (c) Boring.
SPS 327.35(5)(c)1.1. Holes bored within 2 inches of the top or bottom of ceiling joists or rafters may not be located in the middle 1/3 of the span of the member.
SPS 327.35(5)(c)2. 2. The diameter of a hole may not exceed 1/3 the depth of the member.
SPS 327.35(5)(c)3. 3. A hole may not be bored within 2 inches of a notch or another hole.
SPS 327.35(5)(c)4. 4. The distance between adjacent holes may not be less than the diameter of the larger hole.
SPS 327.35(5)(d) (d) Engineered wood products. Notching or boring of engineered wood products shall be done in accordance with the manufacturer's instructions provided those instructions were developed through structural analysis or product testing.
SPS 327.35(6) (6)Roof sheathing, boards and planking.
SPS 327.35(6)(a)(a) Structural sheathing. The allowable loads and spans for structural sheathing shall be in accordance with the grade stamp on the panel.
SPS 327.35(6)(b) (b) Roof boards.
SPS 327.35(6)(b)1.1. Where the rafter spacing is 24 inches on center or less, roof boards may be used that have a minimum thickness of 5/8-inch for solid sheathing and 3/4-inch for spaced sheathing.
SPS 327.35(6)(b)2. 2. Where the rafter spacing is greater than 24 inches on center, roof boards shall be tongue and groove, at least 1 1/2 inches thick.
SPS 327.35(6)(c) (c) Roof planks.
SPS 327.35(6)(c)1.1. Roof planks shall be tongue and groove or splined and at least 2 inches, nominal, in thickness.
SPS 327.35(6)(c)2. 2. Planks shall terminate over beams unless the joints are end matched.
SPS 327.35(6)(c)3. 3. The planks shall be laid so that no continuous line of joints will occur except at points of support.
SPS 327.35(6)(c)4. 4. Planks shall be nailed or fastened to each beam.
SPS 327.35 History History: EmR1703: emerg. cr., eff. 2-6-17; CR 17-017: cr. Register March 2018 No. 747, eff. 4-1-18.
SPS 327.36 SPS 327.36Weather protection for roofs.
SPS 327.36(1) (1)General.
SPS 327.36(1)(a)(a) All roofs shall be designed and constructed to assure drainage of water.
SPS 327.36(1)(b) (b) All fasteners shall be corrosion resistant.
SPS 327.36(2) (2)Underlayment for shingles. Underlayment consisting of number 15 asphalt-impregnated felt paper or equivalent or other type I material that shows no water transmission when tested in accordance with ASTM D 226 or ASTM D 4869 shall be provided under shingles. Underlayment materials meeting the requirements of ASTM D 1970 meet the performance requirements of this subsection.
SPS 327.36(3) (3)Asphalt shingles.
SPS 327.36(3)(a)(a) General.
SPS 327.36(3)(a)1.1. Shingles that have a self-sealing adhesive strip shall include a sealant which has an average bond strength of at least 1 1/2 pounds per 3 3/4 inches of shingle width, at 32 degrees Fahrenheit. The department will accept results of testing conducted in accordance with an approved test method for verifying compliance with the sealant uplift resistance required in this paragraph. Information on the applicable test method may be obtained from the department.
SPS 327.36(3)(a)2. 2. Each shingle package shall be labeled by the manufacturer to indicate conformance to the applicable ASTM standard for each type of shingle or the exception in par. (b).
SPS 327.36(3)(a)3. 3. Shingles shall be installed in accordance with the manufacturer's recommendations.
SPS 327.36(3)(a)4. 4. Shingles shall have at least 4 fasteners per strip shingle or 2 fasteners per interlocking shingle, unless the manufacturer has other specifications.
SPS 327.36(3)(a)5. 5. Shingle head lap shall be at least 2 inches, unless the manufacturer has other specifications.
SPS 327.36(3)(a)6. 6. All fasteners for shingles shall be corrosion-resistant.
SPS 327.36 Note Note: See s. SPS 327.08 (54) for definitions of shingle terms.
SPS 327.36 Note Note: Section SPS 327.04 (2) requires compliance with all parts of this code, including these roofing provisions, for an alteration to any camping unit that is regulated under this code.
SPS 327.36(3)(b) (b) Fiberglass shingles. Fiberglass asphalt shingles shall conform to ASTM D 3462 except that laminated shingles shall have a tear strength of at least 1450 grams in each ply.
SPS 327.36(4) (4)Other roof coverings. All roof coverings not otherwise addressed in this section shall be installed in accordance with the manufacturer's instructions or a national standard recognized by the department.
SPS 327.36(5) (5)Reroofing. New roof coverings may not be installed over existing roof coverings where any of the following conditions exist:
SPS 327.36(5)(a) (a) The existing roof or roof covering is water-soaked or has deteriorated such that it is inadequate as a base for additional roofing.
SPS 327.36(5)(b) (b) The existing roof is wood shake, slate, clay, cement, or asbestos-cement tile.
SPS 327.36(5)(c) (c) The existing roof has 2 or more applications of any type of permanent roof covering.
SPS 327.36(6) (6)Flashing.
SPS 327.36(6)(a)(a) General. Flashing shall be installed at the junction of chimneys and roofs, in all valleys, and around all roof openings.
SPS 327.36(6)(b) (b) Flashing of open valleys.
SPS 327.36(6)(b)1.1. Open valleys shall be flashed with at least No. 28 gauge corrosion-resistant sheet metal, 16 inches wide, or a layer of at least 50-pound roll roofing, 16 inches wide, placed over a layer of number 15 roofing underlayment.
SPS 327.36(6)(b)2. 2. Flashing sections shall be overlapped by at least 4 inches.
SPS 327.36(6)(c) (c) Flashing of closed valleys. Where shingles are laced or woven over the valley, the valley shall be flashed with one of the following:
SPS 327.36(6)(c)1. 1. At least one layer of 50-pound roofing, at least 20 inches wide, over a layer of number 15 roofing underlayment.
SPS 327.36(6)(c)2. 2. A product labeled as meeting the requirements of ASTM D1970.
SPS 327.36(6)(d) (d) Chimney flashing.
SPS 327.36(6)(d)1.1. Chimneys shall be flashed and counter-flashed to a height of at least 6 inches.
SPS 327.36(6)(d)2. 2. Chimney crickets or saddles shall be installed where the upper side of a chimney is more than 30 inches wide on a sloping roof.
SPS 327.36(6)(d)3. 3. The intersection of the cricket and the chimney shall be flashed and counter-flashed to a height of at least 6 inches.
SPS 327.36 History History: EmR1703: emerg. cr., eff. 2-6-17; CR 17-017: cr. Register March 2018 No. 747, eff. 4-1-18.
subch. III of ch. SPS 327 Subchapter III — Heating, Ventilating, and Air Conditioning
SPS 327.37 SPS 327.37Scope. The provisions of this subchapter shall apply to the design, installation, and construction of all heating, ventilating, and air conditioning systems in camping units covered by this code.
SPS 327.37 History History: EmR1703: emerg. cr., eff. 2-6-17; CR 17-017: cr. Register March 2018 No. 747, eff. 4-1-18.
SPS 327.38 SPS 327.38Design. Where a heating system is provided in a camping unit, the heating system shall be designed in accordance with this section. Where a cooling system is provided in a camping unit, the cooling requirements of this section shall be met.
SPS 327.38(1) (1)Distribution systems. Distribution systems shall be sized and located to satisfy the heating and cooling loads of each conditioned space.
SPS 327.38(2) (2)Ventilation.
SPS 327.38(2)(a)(a) General.
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.