Roof Shingle Replacement Playbook
Calculate pitch, deck underlayment, sheathing sheets, and shingle bundles.
Get Personalized Quantities
Enter your dimensions in the calculator to get exact material counts, then print your playbook.
Start PlanningPreparation Checklist
- Check forecast — no rain or high winds for 5 consecutive days
- Confirm roof deck condition — replace rotted sheathing before shingling
- Rent dumpster or arrange bag-based debris disposal
- Order shingles, underlayment, and flashing — allow 2-week lead for special colors
Tools & Equipment
Execution Timeline
Tear-Off
Remove existing asphalt shingles, valley metals, flashings, and old felt paper down to wood deck.
Hire Pro (Falls risk and heavy debris management)
Deck Repair
Inspect underlying plywood decking for water damage, rot, or sagging; replace boards as needed.
DIY (Inspect for structural rot)
Weather Barriers
Install ice & water shield at eaves and valleys, lay synthetic underlayment over roof fields.
DIY-friendly (Install self-adhesive sheets)
Starter & Shingles
Install metal drip edges, nail down starter shingle rows, and lay main shingle fields.
Hire Pro (Requires exact nailing pattern to hold warranty)
Ventilation & Capping
Install ridge vents, flashing collars on plumbing vents, and nail down ridge cap shingles.
DIY (Install ridge vents and caps)
Common Mistakes
- Layering new shingles directly over old, curled shingles (reduces shingle life and voids warranties).
- Nailing shingles incorrectly (high nailing or using too few nails causes shingles to blow off).
- Re-using rusted flashings or damaged valley linings to save cost.
- Improper ridge vent spacing causing condensation buildup in the attic.
Cleanup Checklist
- Remove all old shingle debris from roof deck and gutters
- Magnetic sweeper over driveway and lawn to collect roofing nails
- Dispose of tear-off debris per local landfill guidelines
- Return unused shingle bundles within supplier return window
Maintenance Tips
- Inspect roof after major storms for missing or damaged shingles
- Clean gutters at least twice per year — spring and fall
- Check attic for light penetration or water stains after heavy rain
- Trim overhanging tree branches to prevent moss and debris accumulation