
Building Materials Collection
Roofing Accessories
Coil Nails, Underlayment, Drip Edge, Step Flashing & Ice Barrier
Builder-grade roofing accessories sized and gauged for residential asphalt-shingle assemblies. Hot-dip galvanized coil nails, synthetic underlayment by the roll, aluminum T drip edge in 10-foot lengths, pre-bent step flashing, and self-adhered ice-and-water shield for eaves and valleys.
Built for Performance. Designed for Life.
Builder-Grade Material
Aluminum trim coil, galvanized steel, and engineered membranes. Honest gauges, honest specs.
Finish-Matched to the Lineup
Black and White on every aluminum profile so your fascia, soffit, drip edge, and F-channel read as one system.
Project-Ready Lengths
Standard 10' and 12' lengths sized for residential framing. Coil nails ship by the carton, membranes by the roll.
The Roofing Accessories Lineup
Five builder-grade SKUs, sized and gauged for residential work, finish-matched across the line.

Galvanized Roofing Coil Nails
1¼″ × 11 ga1¼″ Smooth Shank
Hot-dip galvanized smooth-shank coil nails for asphalt-shingle attachment. Standard 15° coil nailer compatible.

Synthetic Roofing Underlayment
Roll · 1,000 sq ft48″ × 250′ Roll
Lightweight synthetic underlayment for asphalt-shingle, metal, and tile roof assemblies. Lays flatter than felt; doesn't tear in wind.

Aluminum T Drip Edge
10′ · .018″2¾″ × 1½″ × 10′
Pre-bent aluminum T-profile drip edge for asphalt-shingle eaves and rakes. Kicks water off the fascia, not behind it.

Aluminum Step Flashing
4×4×8″ · per pc4″ × 4″ × 8″ Pieces
Pre-bent aluminum step flashing for the roof-to-wall transition on sidewalls and dormers. One piece per shingle course.

Ice & Water Shield
Roll · 195 sq ft36″ × 65′ Roll
Self-adhered SBS membrane for eaves, valleys, and roof penetrations. Seals around fasteners; stops ice-dam infiltration.
Frequently Asked Questions
Specs (gauge, length, coverage, weight) follow standard residential conventions, but our building materials are not currently sold with code-compliance certifications (ASTM, UL, etc.). If your code official requires documented testing for a specific assembly — e.g. wind-resistance testing on synthetic underlayment, or fire-rating on an ice-and-water shield — contact us before specifying and we'll confirm what documentation is available on a SKU-by-SKU basis.
Yes. Larger orders ship from our Michigan warehouse on standard 40" × 48" pallets, and full-container or partial-container quantities can be sourced direct. Email sales@shorelinebrand.com with a takeoff and we'll quote.
Specs are shown in both. Aluminum trim coil is most often spec'd in thousandths-of-an-inch (.018", .024") in the US, while our manufacturing partners spec in mm. We carry both on every spec table so you can match a takeoff against either standard without doing conversion math on site.
The Black soffit is 0.38mm and the White is 0.40mm — a real and intentional spec difference, not a typo. For most residential soffit applications the 0.02mm spread is below the threshold a builder will notice or specify against, but we list both so the spec sheet is honest. Both are well within the 0.35–0.45mm range typical of residential aluminum soffit.
In-stock SKUs ship in 3–5 business days from Michigan. Out-of-stock or larger-than-warehouse-quantity orders ship 40–45 days after the PO lands, which is standard container lead time from origin. We'll confirm the schedule on every quote.
Warranty & Care Guide
Shoreline Brands stands behind every product we manufacture.
Our building materials carry a limited warranty against manufacturing defect. Specific terms — duration, exclusions, and coverage tier — vary by product and by manufacturing partner. Contact us for product-specific warranty documentation before specifying for a project that requires written warranty terms.
Painted aluminum trim coil is warrantied against checking, peeling, and chalking under normal residential exposure. Specific warranty period varies by SKU.
Warranty Coverage
- Manufacturing defects
- Material substitution
- Painted-finish checking and peeling under normal residential exposure
Warranty Exclusions
- Damage from improper installation or out-of-spec fasteners
- Cosmetic surface damage incurred after delivery
- Performance claims requiring third-party testing (ASTM, UL, etc.) — these are not currently warranted on our building-materials line
Care Guide
Storage Before Install
- •Store trim coil and flashing flat, off the ground, under cover. Bowed coil resists straightening once it's taken a set.
- •Keep underlayment and ice-and-water shield rolls on end (not laid flat) to prevent core distortion.
- •Coil nails: keep in original cartons, indoors, until install. Field-stored cartons soak humidity and corrode prematurely.
Field Cuts and Edges
- •Cut aluminum with aviation snips or a fine-tooth blade. Don't use abrasive cut-off wheels — heat discolors the paint at the cut.
- •Cut galvanized steel with snips; seal the cut edge with zinc-rich primer in high-moisture exposure to prevent edge rust.
- •Touch up scratches or scuffs on painted aluminum with matching color-matched paint before exposure to weather.