Roof Shingle Installation Patterns

Continue laying your shingles horizontally up the roof.

Roof shingle installation patterns.

Asphalt shingles nailed in a ladder pattern or using the racking method. Because the bending can stress and deform shingles especially in cold weather the ends of those shingles may warp over time creating a prominent pattern on the roof. Most metal shingles will be attached to the roof using metal shingle. Some were even diamond patterned roof shingles.

Other shingle design patterns have come and gone including shingles that once installed simulated the look of fish scales or had interlocking t shapes scalloped and beavertail rounded tabs. Pattern curling is caused by the roofer having to lift the end tab of every other shingle to install the last shingle nail at the end of the next shingle. Repeat this basic pattern alternating shingles across the roof working toward the right side using the chalk line to keep the shingles straight horizontally. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

This article series defines shingle laddering an installation pattern and it explains how to identify evaluate shingles installed in this ladder pattern. Start by laying asphalt felt or other underlayment over the roof. Overlap each row at least 3 to 4 inches. The information here describes the various sorts of roof leak wear and cosmetic issues caused by shingle laddering as an example of something a bit less than the.

Using your staple gun secure the felt to the roof. Other composition shingles such as architectural and random cutouts are installed using most of the same techniques. If your roof will have open valleys which iko recommends now is when the valleys should be lined with a pre formed width of corrosion resistant metal. Rather shingle installation patterns are methods of orienting and interlacing roof shingle courses to maintain the offset of joints between shingles in successive courses and to speed production by establishing a regular and predictable installation process.

Install new flashing metal. If you live in an area with inclement weather you should consider using a special ice and water protector. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Use 4 nails per shingle and 6 nails on the prevailing windward sides of the roof as wind resistance nailing.

Butt a full shingle up against the cut shingle and nail into place. Three tab shingles are still widely available and used. Valleys can either be open or closed open valleys are not covered with shingles closed valleys are. Check with your roofing dealer to learn about any installation differences.

Next lay the first full row of shingles so they re directly covering the starter row. When installing shingles start by laying a narrow row of shingles at the bottom of the roof along the edge.