Asphalt shingles and metal roofing each include different product systems, finishes, installation details and warranties. Compare exact models and full installed scopes against the roof design, local requirements and maintenance priorities; category-level lifespan and cost figures can hide substantial variation.
Compare the exact roofing system and written installation scope. Shingle and metal product lines vary, so a general label cannot tell you the installed cost, performance documentation or warranty for a specific roof.
Compared
| Project decision | Asphalt shingles | Metal roofing |
|---|---|---|
| Product details | Exact shingle style, model, ratings and warranty | Panel type, metal and finish, attachment system, ratings and warranty |
| Roof fit | Approved slope, underlayment, ventilation and accessories | Roof geometry, panel system, slope, attachment and flashing details |
| Quote scope | Removal, deck inspection, starter and ridge components, flashing and disposal | Removal, deck inspection, underlayment, clips or fasteners, trim, flashing and disposal |
Other options
- Exposed-fastener metal panels: cheaper than standing seam; fasteners need maintenance.
- Composite and synthetic slate or shake: lighter than natural materials.
- Tile and natural slate: long life, heavy; may need structural checks.
Compare the complete roof assembly
The covering is one part of the roof. Underlayment, ventilation, flashing, penetrations, fasteners and roof deck all need to fit the selected system. Product instructions and local code set the installation details; ask the contractor to identify them in the bid. Warranty terms for the material and labor may come from different companies, so record who is responsible for each.
Getting quotes
Ask for the shingle or panel line, underlayment, ice and water barrier where required, flashing, ventilation plan, decking replacement price and warranty details. Compare like for like and ask the contractor to explain exclusions. For two asphalt shingle formats, compare three-tab and architectural shingles. See hiring a contractor.
Pair a new roof with attic insulation and compare gutter types and guards as part of the roof drainage plan. Browse roofing and exterior.
Sources
- Owens Corning: Roofing shingles and product lines
- Metal Roofing Alliance: Homeowner FAQs
- Metal Construction Association: Service-life assessment for a specific standing-seam system
Browse roofing and exterior.
Common questions
How long does a metal roof last compared with shingles?
There is no single lifespan for either broad category. Product construction, roof assembly, installation, climate and maintenance matter. Compare the exact product warranty and the installer's workmanship warranty separately.
Are metal roofs noisy in rain?
Sound depends on the complete roof assembly and installation. Ask the roofer to describe the deck, underlayment, attic insulation and panel support for the proposed system.
Can metal go over existing shingles?
It depends on the product instructions, existing roof layers, deck condition and local code. Ask the installer to state whether the bid includes removal and inspection of the deck.
How should I compare installed prices?
Ask each contractor to price the same product scope, including removal, deck repairs, underlayment, flashing, ventilation, accessories and disposal. Separate allowances and exclusions.