The contoured face and living hinge provide the necessary flexibility to allow each ski-shaped lead-in to be quickly and easily inserted onto a piece of building material. Under the IBC, 1/2-inch PS-2 panels with a span rating of 32/16 can have an unsupported edge of up to 28 inches, while 5/8-inch 40/20 panels can span up to 32 inches. Fits on the top of a concrete or timber base/gravel board, the timber panel then fits in between the top lugs. Stepping on a roof sheathing panel joint between rafter bays I’ve never, ever seen a clip pop loose even if it was the wrong size. Preferably, it is at least ⅛ inch thick to ensure a ⅛ inch expansion gap between the aligned building materials 11.

In fact the lumber yard brought up a pile of cull 2x4s and 6s to use for blocking - bracing and farm - ranch use and cost us nothing if I remember correctly. Although I wouldn’t say support would be the right word…if you step on the joint it will still bow down.

the lead-in 16 eventually rotates such that it comes to rest within an indentation 21 on each end 13 of the arms 12 in a position parallel the surfaces 15 of the building material 11 .

I'm going to replace with an EPDM rubber roof so have got some OSB3 board to install as a decking on the joists. The stamp on the OSB panels indicated the span rating 16/24 for instance but no mention of increasing the rating with the use of clips.

the contoured face 20 provides a smooth, contoured surface for the material 11 to slide over as the H clip 10 is completely inserted. I am about to install the sheathing on the rafters, and I am putting H-clips in between the sheathing.

Sheathing is considerably stronger in the out of plane direction when the strength axis lies across the bearings. The living hinges 18 also provide the lead- ins 16 the necessary flexibility to be quickly and easily inserted onto the edge of a piece of building material 11. The present invention is directed to a clip for use in the construction industry and particularly to an H-shaped clip for spacing and installing building materials such as roof sheathing.However, when exposed to a lot of rain, I have seen plywood/OSB roof sheathing panels bow at the points at which H-clips were installed because the panels had no room to expand. This detail shows HEW's recommendations when addressing the bottom of the wall when stucco is installed over ZIP System rainscreen and ZIP System R-sheathing. The willingness of installers to try our clips is due in a large part to their dislike of working with the stamped metal clips.