Tamko Home Additions & ADU Nationwide

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

Tamko roofing materials installed on home additions and ADUs in West Palm Beach typically run $45,000-$130,000 for a complete addition, with Tamko Heritage series shingles and Titan XT impact-rated options being the most common choices we see on local permits. We stock Tamko-compatible underlayment, ridge vents, and flashing profiles on every West Palm Beach truck, and most Tamko roof repairs on existing additions finish same day. Homeowners usually discover the problem when a tropical downpour reveals a leak at the addition-to-house junction, or when they spot lifted shingles along the new roofline after a storm rolls through the Northwood or El Cid neighborhoods.

Call (561) 475-3903

Which Tamko Models This Applies To

We work with every Tamko residential line mounted on West Palm Beach additions and ADUs. The Heritage series, Heritage Woodgate, and Titan XT are the three we encounter most often on permits pulled in Palm Beach County. Heritage is the standard laminated shingle; Woodgate carries a deeper shadow line that owners in Flamingo Park and Prospect Park often specify for aesthetic matching with existing 1920s rooflines. Titan XT is the impact-rated Class 4 option, and it’s required in some wind-borne debris zones near the Intracoastal.

To identify your Tamko product, check the shingle back for the printed lot code and granule color name, or look for the Tamko starter strip along the eaves, which carries the series marking. The critical compatibility gotcha in West Palm Beach: Tamko’s Heritage and Titan XT use different nail-zone widths, so ridge caps and hip shingles are not interchangeable between series. We source OEM Tamko accessories for warranty compliance, though we also carry Atlas and CertainTeed equivalents when a color match to discontinued Tamko stock is the priority. Our written quote specifies which route we’re taking before any bundle hits the roof.

Signs Your Tamko Home Additions & ADU Is Failing

• Water stains on the addition ceiling after rain. The leak usually traces to a failed step flashing at the wall-to-roof intersection, or to Tamko underlayment that degraded faster than the shingles because the original crew used a lighter-grade synthetic in a low-slope area. In West Palm Beach, we see this most often on south-facing shed roofs where UV exposure is relentless.
• Lifted or missing shingles along the ridge or eaves. Tamko shingles are rated to 130 mph, but improper nail placement or a skipped nail pattern leaves the seal strip vulnerable to the gusts that come off Lake Worth. We find this on additions where the original roofer rushed the tie-in to the main roof.
• Granule loss exposing the asphalt mat. Florida’s UV index accelerates this; Tamko shingles on unshaded West Palm Beach additions can show significant granule shedding in 8-12 years versus the 15-20 you’d expect in a milder climate. The exposed mat absorbs more heat, accelerating the cycle.
• Sagging or soft spots when walking the addition roof. This points to deck rot beneath the Tamko shingles, almost always from inadequate ventilation in the compact attic spaces typical of ADUs. We pull the shingles, replace the plywood, and install Tamko’s ProSeries Deck Armor to prevent recurrence.
• Daylight visible through the soffit or fascia joints. On Tamko-roofed additions, this signals that the drip edge was omitted or undersized at the build, letting wind-driven rain infiltrate the rake boards. We’ve rebuilt this detail on multiple Flagler Drive properties where the original ADU contractor cut corners on finishing.

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Replacement Cost & What’s Included

Complete Tamko roof replacement on a West Palm Beach home addition or ADU runs $45,000-$130,000 depending on square footage, deck condition, and whether we’re matching an existing main-roof profile. A partial repair, such as replacing a damaged slope or re-flashing the wall junction, typically falls in the $3,500-$12,000 range. The price includes tear-off to the deck, replacement of compromised plywood, Tamko underlayment and shingles per spec, new drip edge and valley metal, and permit pulling with inspection scheduling.

What drives the range: deck rot extent, access difficulty (steep pitches or tight lots in El Cid add labor hours), and whether we’re upgrading to Titan XT for impact rating. Every quote is flat and written, with line-item material and labor breakdowns. Under Clause 1 of the Haven Standard, that written price is fixed; no change proceeds without a signed change order. Our 365-Day Done Right Promise covers the workmanship, and Tamko’s own limited warranty runs 30 years to lifetime depending on the series.

DIY or Call Us?

An owner can safely walk the perimeter with binoculars to spot lifted shingles or missing ridge caps, and can check the attic for active drips during rain. What you cannot safely do: climb a pitched addition roof to inspect, remove shingles to assess deck condition, or attempt a repair on a tie-in that involves structural load transfer. The junction between original house and new addition is a engineered detail; get the flashing wrong and you channel water into the wall cavity.

We’re not affiliated with Tamko, but we’ve installed their products on West Palm Beach additions since Grant Rowan brought the crew to Florida. If you’re seeing symptoms, call (561) 475-3903. We’ll photograph what we find, write the price before any work starts, and schedule around your availability.

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