By Omer Okic, owner of Ultimate Exteriors · 28 years on Des Moines homesOriginally published February 2022 · Updated November 2026
Repair makes sense when damage is limited and the roof has plenty of life left. Replacement is usually the better value when the roof is near the end of its life, has widespread hail or wind damage, or keeps leaking in new places.
- Limited damage on a younger roof: repair
- Widespread damage or an aging roof: replace
- Iowa hail and wind make post-storm inspections important
- Ventilation and insulation matter with either choice
Every roof wears out eventually. Storms, sun, freeze-thaw and pests all take their toll. When something goes wrong, the big question is whether to repair what's there or start over. Here's how to think it through.
Evaluate the damage
Have a professional look at the roof. Damage falls into two groups. Cosmetic issues, like some discoloration or a few worn shingles, don't threaten the house. Structural problems, like soft decking, leaks, widespread hail bruising or sagging, do. A contractor should also check:
- How much of the roof is affected
- The condition of the decking underneath
- Flashing, pipe boots and vents
- Attic ventilation and signs of moisture
Consider the roof's age
Most architectural asphalt roofs last about 20 to 30 years in Central Iowa. Curling or cracked shingles, bald spots and lots of granules in the gutters are signs of age. Putting a large repair into a roof that's near the end of its life often doesn't pay off.
Factor in Iowa weather
Iowa sees hail, high winds and the occasional derecho. Repair storm damage promptly, especially before spring storm season, and get an inspection after any big storm. If hail damage is widespread, insurance may cover a replacement; see our storm damage and insurance guide.
Think about energy efficiency
A replacement is a chance to fix ventilation and add insulation. Balanced intake and exhaust ventilation keeps the attic dry and helps prevent ice dams, and good attic insulation keeps heat in during Des Moines winters.
Know your material options
Architectural asphalt is the best value for most homes. Class 4 impact-resistant shingles hold up better to hail and may earn an insurance discount. Metal lasts the longest of the common options. See the most popular roofing materials.
Compare the costs
See what common repairs involve on our roof repair page, and what a full replacement costs in our roof cost guide.
Quick answers
Is it cheaper to repair or replace a roof?
A repair is cheaper up front. If the roof is old or damaged in many places, repeated repairs can cost more over time than a replacement.
How do I know if my roof needs to be replaced?
Age near 20 to 30 years, widespread hail damage, curling shingles, soft decking and leaks in multiple places all point to replacement.
Not sure which you need?
Book a free roof inspection. We'll tell you honestly whether a repair will do.