Shingle Roofing Starter Strip Installation: What Homeowners Need to Know

Installing asphalt shingles isn't just about nailing down rows of shingles—getting the starter strip right is key to keeping your roof watertight and wind-resistant.

Here's what you need to know about starter strip installation and why it matters.

What Is a Starter Strip?

A starter strip is a narrow strip of roofing material placed along the eaves and rake edges of the roof before laying the first course of shingles.

Purpose:

• Seals the edges against wind uplift

• Provides a straight edge for the first course of shingles

• Prevents water infiltration under shingle joints at the roof edge

Why the Starter Strip Matters

According to the Asphalt Roofing Manufacturers Association (ARMA), properly installed starter strips are critical for wind resistance and long-term roof performance.

Without a starter strip:

• Shingles may lift in high winds

• Water can seep under the shingles at cutouts

• Manufacturer warranties may be voided

Step-by-Step: Installing Starter Strips

1. Prep the Roof Edge

• Install drip edge flashing along the eaves

• Install ice and water shield underlayment per code, typically extending at least 24 inches beyond the inside wall line

2. Use Factory-Made or Field-Cut Starter Shingles

• Factory-made starter strips come with a factory-applied adhesive strip and consistent dimensions.

• You can also create a starter strip by cutting the tabs off 3-tab shingles.

Pro Tip: ARMA recommends factory-made strips for better uniformity and adhesion.

3. Place Starter Strip Over Drip Edge

• Install with the adhesive strip facing up and toward the edge of the roof.

• The bottom edge of the starter strip should overhang the drip edge by about ¼ to ⅜ inch.

4. Offset Joints

• Stagger starter strip seams at least 6 inches from the first row of shingles above to avoid water paths.

5. Nail Properly

• Use 4-6 nails per strip, as specified by the shingle manufacturer.

• Nails should be 1" from each end and spaced evenly in between.

Common Mistakes to Avoid

• Wrong Orientation: Installing the adhesive strip in the wrong direction will ruin the seal.

• No Overhang: Without the correct overhang, water can run behind the gutter.

• No Starter Strip at Rake Edge: Leaving off starter strips at the rake edge exposes the roof to wind damage.

FAQs

Do I really need a starter strip?

Yes. Starter strips are essential for wind resistance and to seal the edges of your first shingle course. Skipping them can void warranties.

Can I just use upside-down shingles as starter strips?

Yes, but factory-made starter strips are recommended for better performance, especially in high-wind zones like Colorado and Georgia.

Should the starter strip go over or under the drip edge?

It should go over the drip edge at the eaves but under it at the rakes, following best flashing practices.

For expert shingle and metal roofing services in Colorado or Georgia, contact Roof Nuts:

• Colorado: RoofNutsCO.com | 303-276-2403

• Georgia: RoofNutsGA.com | 404-476-6851

Need help with a starter strip installation or a full roof replacement? We’re ready to help. Get a free estimate today.