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.

It s a simple gable roof with vents at either end and a ridge vent. And i was advised that that gap should be protected by a home inspector. 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.

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. 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. One on the reasons i recommend using ice water sheild over the entire roof when having shingles replaced. 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 sheathing just provides a nailing surface and support for the shingles as the gaps have no effect on water tightness. 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. But where the wall sheathing meets the roof sheathing there is a gap of approximately 1 8 of an inch. The house does not have an overhang.

Now wait a minute. Align the long edge of the sheathing with the ends of the. I d rather be outdoors camping kayaking and mountain biking.