Is aluminum siding still a good choice?

Yes, especially for fire zones and coastal areas. It is non-combustible and handles salt air well. Fewer style options than vinyl or fiber cement.

Can aluminum siding be painted?

Yes, and painting is a great way to update faded aluminum. Use primer designed for metal and quality exterior latex paint.

How long does aluminum siding last?

40+ years for the material itself. The factory finish may need repainting after 15-25 years depending on sun exposure.

Siding & Exterior

Metal

$3-$8 per sq ft installed

Aluminum Siding: Fireproof Metal Exterior Cladding (2026)

Prepared by Lumberama's Building Materials Team

|Last updated June 23, 2026|Sources & methodology

Aluminum siding is a lightweight, non-combustible metal cladding that resists rot, insects, and fire. Once the most popular siding choice before vinyl, it remains valued for its durability, fire resistance, and recyclability. Modern aluminum siding features baked-on enamel finishes and insulation backing for improved energy efficiency.

Key Features

Non-combustible; Rot and insect proof; Recyclable material; Baked-on enamel finish; Can be repainted any color

Specifications

Thickness: 0.019-0.024 in. Width: 8-12 in exposure. Length: 12 ft. Weight: approximately 0.5 lbs/sq ft. Fire rating: non-combustible.

Applications

Residential exterior walls; Fire-zone construction; Coastal environments; Historic renovations; Soffit and fascia trim

Installation Overview

Install over house wrap with aluminum nails to prevent galvanic corrosion. Start with starter strip. Nail loosely to allow thermal expansion. Lock panels, maintaining proper overlap. Install J-channel and corner posts at all transitions.

Pros & Cons

Pros

✓ Non-combustible; Does not rot or attract insects; Fully recyclable; Can be repainted; Durable in coastal environments

Cons

✗ Dents easily; Fades over time; Noisy in hail; Less popular means fewer contractors; Can show nail heads

Top Brands

Alside

Gentek

Kaycan

Rollex

Code Requirements

Must meet ASTM D4321. Non-combustible per IRC R302.1. Installation per manufacturer specs and IRC R703. House wrap required behind siding.

Buying Tips

Aluminum is a strong choice for fire-prone and coastal areas. Use only aluminum nails and trim to prevent galvanic corrosion. Insulated-backed panels add R-value and reduce denting.