By positioning the nail in the upper third, you ensure the cap created by the shingle above directs water away from the fastener. The goal is to drive nails through the solid shingle tab, into the sheathing, without missing the framing below.
Optimal Nailing Position for 3 Tab Shingles
Missing the rafters leads to a flexible, weak spot that will eventually crack and leak. These four nails should be placed in a straight line, roughly 1 inch in from each side of the tab.
Additionally, if you live in a high-wind region, the answer to where to nail 3 tab shingles changes. This spacing provides enough holding power to resist storms while still allowing the shingle to expand and contract with temperature changes without cracking.
Optimal Nail Placement for 3 Tab Shingles
Shingle Position Recommended Nail Count Nail Placement Starter Course 4 per shingle 1 inch from edges Standard Courses 4 per shingle 1 inch from edges Peak/Cap Shingles 6 per shingle 1 inch from edges, balanced across tab Tools and Technique for Accuracy Knowing where to nail 3 tab shingles is useless without the right tools to execute it. This simple adjustment is the primary defense against driven rain and wind uplift.
More About Where to nail 3 tab shingles
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More perspective on Where to nail 3 tab shingles can make the topic easier to follow by connecting earlier points with a few simple takeaways.
