Roofing Shingles Pattern

Align shingles properly to avoid nail exposure.

Roofing shingles pattern.

Some roofers install shingles so the cutout lines describe a slight angle as you look from the bottom to the top of the roof. Some were even diamond patterned roof shingles. This installation method is called racking racking is an improper installation method for many shingle types. 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.

Position the nails appropriately according to the shingle installation instructions. Three tab shingles are still widely available and used. Each tab is 12 inches. Mixing exterior patterns and textures with your roof.

For duration series shingles owens corning recommends using either a 4 or 6 nail fastening pattern depending on the roof s slope and building code requirements. However most people prefer the cutout lines to be aligned so they make straight vertical lines. 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. For decades the three tab strip shingle dominated the roofing industry with the characteristic geometric brickwork pattern it created on the roof.

Three tab shingles are usually 36 inches long. 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. Asphalt composition shingles covering the roof of this home were installed with joints aligned vertically at every other course. It is acceptable for some shingle types and it is the required method for a few shingle types.

In most cases 4 nails are adequate.