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The framers putting the roof on my house are not using H-clips on the 5/8 sheeting. The trusses are 24″ on center and the roofing material is to be cement tile (1000 lbs. a square). The general contractor told me that you don’t need to use H-clips on 5/8″ sheeting – though the sheeting manufacturers literature shows their use. Are they required? or should the general contractor have seen that they were used?
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Tom,
Not sure about where you are, but in B. Canada, we don't use -clips for this application. If you are using clay tile, the woofers will strap the roof with 1x4 perpendicular to the trusses. The tile is supported by these 1x4. Why the 58" plywood? The plywood is basically holding up the felt paper. I am not an expert on clay tile, I'm a framer. The building inspector told me this is the way to do it. We only use 38" plywood.
I really hope I have not been miss informed.
*Here in NE Ohio, H-clips are not reqd on 5/8, ditto what Les said about the battens on clay tile.Les-3/8 plywood? That won't fly around here, 24" OC. I'm not even sure it would 16" OC. Do you mean you use it with clay tile batten systems only? I think that must be what you mean. I've only worked on a couple of clay tile roofs, and they were sheeted in 5/8.John
*JRS, Yes. We use 38" plywood for clay tile application only. We use 716" plwood ( trusses @ 24" oc ) for asphalt shingles. I have never had to use anything bigger on any roof. We use 1x4 strapping for cedar shake applications. What do you guys use for asphalt shingles?
*b WBA At Your Serviceholy moly, now I've heard everything. 16" centers never less than 1/2"24" centers 1/2" with clips, rarely (el cheapo) and more often 5/8" no clips. if slate is used it jumps to 3/4"
*5/8 with clips.. it spaces the plywood correctly.. and adds support to the mid-spanif they went to the expense of using 5/8.. they might as well do it right..or switch to t&g...hah, hah, hah
*Around here, 7/16" OSB is the norm. I prefer 1/2 fir plywood. 5/8 anything is rare.John
*At 24" oc, I don't know why they wouldn't use clips especially since the roofing will tend to be heavy. It's cheaper and easier than blocking. It wouldn't pass inspection here in snow country. But I've heard it's ok to omit in some areas.fv
*Blocking - they didn't use any blocking. They also didn't use construction adhesive like I asked. I am also in snow country at 6700 feet in elevation - just outside Pike National Forest in Colorado.
*Forgot to mention that the tiles will be set using verticle counter battens 12" on center and 1 x 4 horizontal battens. So there will be a considerable amount of weight supported midspan. The reason for the 5/8" sheeting is because of the potentially heavy snowloads in the area I'm building in - 4 feet in the course of 2 days, 4 years ago. Roofs in the area have to be engineered to handle 40 lbs per square foot of snow loading - per county building code.
*The job was done right, I wouldn't worry . They did not need construction adhesive. 5/8 is fine on its own at 24o.c. when using the horizontal battens/slats.
*Tom, as a CO builder I am sure they are within code.The norm being 7/16 OSB on 24" centers, NO CLIPS. I would agree with the spacing between the sheathing for expansion. As for the gluing was part of the contract? It is a bit extreme.
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The framers putting the roof on my house are not using H-clips on the 5/8 sheeting. The trusses are 24" on center and the roofing material is to be cement tile (1000 lbs. a square). The general contractor told me that you don't need to use H-clips on 5/8" sheeting - though the sheeting manufacturers literature shows their use. Are they required? or should the general contractor have seen that they were used?