Gaps Between Roof Sheathing

If asphalt shingles are installed over sheathing with gaps exceeding 1 4 inch over time these gaps may telegraph through and become visible.

Gaps between roof sheathing. One on the reasons i recommend using ice water sheild over the entire roof when having shingles replaced. The sheathing just provides a nailing surface and support for the shingles as the gaps have no effect on water tightness. However it is considered good practice to leave a 1 8 gap between sheets and that is also recommended by apa but it is not required. It doesn t mean that panel edge clips h clips are required although there are types of clips that will help with properly spacing the panels.

The recommended maximum gap between roof sheathing boards for low quality 3 tab shingles is 1 4 inch. Gaps that were initially present may have closed due to normal moisture related expansion. Align the long edge of the sheathing with the ends of the. I d rather be outdoors camping kayaking and mountain biking.

Yes a 3 8 inch gap is a pretty good gap to start with. But where the wall sheathing meets the roof sheathing there is a gap of approximately 1 8 of an inch. It s a simple gable roof with vents at either end and a ridge vent. The exterior face of the foam sheathing will be the water control layer and there will be a gap there must be a gap between the cladding and the exterior face of the foam sheathing.

Position the first piece of plywood or oriented strand board sheathing on the bottom edge of the rafter tails at one end of the roof. Actually panels marked sized for spacing simply mean that they are slightly smaller to allow for the recommended 1 8 gap see attached apa tt 055. Now wait a minute.