Tamko Home Additions & ADU Nationwide

Tamko Home Additions & ADU: The Pompano Beach Owner’s Guide

Tamko-compatible home additions and ADU construction in Pompano Beach typically runs $45,000-$130,000 for additions and $90,000-$220,000 for detached ADUs, with Rowan Construction Group stocking Tamko roofing and waterproofing materials on every home addition and ADU project. Most Pompano Beach homeowners discover their Tamko components need attention during the permitting phase or when water intrusion appears at addition-to-existing seams after heavy rain. We carry Tamko Heritage shingles, Titan XT impact-rated options, and TW Metal Series flashing for the coastal wind zones that affect Broward County.

Call (754) 714-6540

Which Tamko Models This Applies To

Tamko’s product lines for home additions and ADUs break into three categories, and matching the right one to your Pompano Beach project matters for both permit approval and wind mitigation credits. The Heritage series, Heritage Vintage, and Heritage Woodgate are the architectural shingles we most often spec on addition roofs in Pompano Beach, where the 130 mph wind rating meets Florida Building Code requirements for most inland zones. Titan XT carries the Miami-Dade HVHZ certification, which you’ll need if your addition or ADU sits east of Federal Highway or within the coastal exposure zone mapped by Broward County.

Identification is straightforward: lift a shingle tab and check the printed strip on the back for the series name and lot number. For metal flashing and waterproofing, TW Metal Series components are stamped with gauge and finish codes. We don’t source from Tamko directly as an affiliate; we’re an independent contractor who specs Tamko where it fits the job. For homeowners comparing OEM Tamko against quality equivalents, GAF Timberline HDZ and Owens Corning Duration often price within 8-12 percent and carry comparable wind warranties. We stock Heritage and Titan XT on our Pompano Beach trucks because the color match to existing Tamko roofs is cleaner, which matters when you’re tying a new addition into a 2015 build in neighborhoods like Garden Isles or Harbor Village.

Signs Your Tamko Home Additions & ADU Is Failing

• Water staining at the addition-to-existing wall joint. This usually traces to failed step flashing or a missing kick-out diverter where the new roof meets the old wall. In Pompano Beach, the summer sun degrades asphalt-based sealants faster than inland Florida, so a five-year-old joint can look twenty.
• Shingle tabs lifting or creasing in the first three rows near the addition edge. This is often improper starter strip placement or insufficient sealant strip activation, common when crews rush to dry in before afternoon thunderstorms hit Pompano Beach.
• Granule loss visible in gutters or on the ground below downspouts. Tamko Heritage shingles in coastal Florida typically show accelerated surface wear after eight to ten years due to salt and UV exposure; if your addition is newer and shedding granules, the lot may have been stored improperly before install.
• Rust streaks on fascia or soffit below metal valleys or flashing. TW Metal Series flashing is galvanized steel with a Kynar finish, but fastener corrosion or cut-edge rust will bleed through if the installer used uncoated nails or left raw edges at the valley turn.
• Interior humidity spikes or mold odor in the new space within two years of completion. This points to missing or punctured vapor barrier beneath the addition’s roof deck, a detail some crews skip when tying into existing attic ventilation in older Pompano Beach homes with original soffit configurations.

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Replacement Cost & What’s Included

Home addition and ADU construction in Pompano Beach using Tamko materials falls into the ranges below. These are installed, permitted, and inspected prices, not material-only figures.

The spread depends on three factors: whether the existing structure needs structural reinforcement for the load transfer, the complexity of tying into existing roof lines common in Pompano Beach’s 1950s-1970s ranch stock, and whether Broward County requires full ADU utility separations. Under Clause 1 of the Haven Standard, you receive a written flat price before any work starts, with line-item breakdowns for materials, labor, permit fees, and inspections. No change proceeds without a signed change order, which is the discipline that has kept our projects within a few percent of the agreed number across 4,000-plus jobs. The 365-Day Done Right Promise covers all work, and every visit includes a documented photo record as standard.

DIY or Call Us?

There’s a clear line between what a Pompano Beach homeowner can safely assess and where professional work becomes non-negotiable. You can check shingle labels, photograph rust streaks for documentation, and verify whether your addition’s permit was finaled with a Broward County inspection sticker. What you should not do: climb a roof with a pitch over 4:12, disturb step flashing at a live joint, or attempt to reseal valleys during summer heat when asphalt products won’t set properly.

Roof work on additions carries real fall risk, and improper flashing at the existing-to-new seam channels water directly into wall cavities where it won’t show for months. If you’re seeing the symptoms above, call (754) 714-6540. We’ll schedule a free estimate, inspect the tie-in with photo documentation, and give you a written price before any work starts.

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