Types of asphalt shingles
- 3-tab shingles: flat, uniform look; lighter weight and generally the most budget-focused option.
- Architectural (dimensional) shingles: layered for depth and typically higher wind ratings — the most common choice today.
- Impact-resistant shingles: designed and tested to resist hail impact, often labeled with a UL 2218 Class 4 rating. Some insurers may offer premium considerations; ask your insurer directly.
It's a system, not just shingles
A durable shingle roof depends on the components underneath: sound decking, quality underlayment, ice-and-water barrier in valleys and penetrations where appropriate, new drip edge, properly installed flashing, and balanced attic ventilation. Ask each contractor which components they plan to replace and which they plan to reuse.
What a typical shingle replacement involves
For a deeper look at each step and the warranties involved, read our guide to roof installation.
- Tear-off of existing shingles and underlayment down to the deck.
- Deck inspection and replacement of damaged sheathing (often priced per sheet).
- Installation of underlayment, drip edge, starter strip, and flashing.
- Shingle installation following the manufacturer's nailing pattern.
- Ridge vents or other exhaust ventilation, then magnetic sweep and cleanup.
Comparing your options
Weighing shingles against metal? Read our page on metal roofing. For budgeting, see the roof replacement cost factors, or return to the main guide on roof replacement in Sherman, TX.
Frequently Asked Questions
How long does an asphalt shingle replacement take?
Many single-family homes are completed in one to a few days, depending on size, pitch, weather, and any decking repairs found during tear-off.
Can new shingles go over old ones?
Some local codes allow one overlay, but many contractors recommend a full tear-off so the deck can be inspected and manufacturer warranty requirements are met. Ask your contractor and check local requirements.
Are impact-resistant shingles worth it in North Texas?
North Texas sees regular hail activity, so many homeowners consider them. Compare the added cost against any insurance considerations your own insurer confirms.