Tamko Underlayment & Deck Repair Nationwide

Tamko Underlayment & Deck Repair: The West Palm Beach Owner’s Guide

We stock and install Tamko-compatible underlayment and deck repair materials throughout West Palm Beach, with most underlayment replacements running between $900 and $2,400 installed depending on roof size, pitch, and how much decking needs to be replaced. We can usually have a crew out within a few days of your estimate, and the work itself typically takes one to two days. Most homeowners discover the problem the way you probably did: a leak shows up on the ceiling after a storm, or a roofer doing an inspection points to bubbling, wrinkled, or torn underlayment and tells you the decking underneath has started to rot. By the time water is coming through, the underlayment has usually been failing for months. In West Palm Beach’s humidity and summer downpours, that timeline shortens fast.

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Which Tamko Models This Applies To

Tamko makes two underlayment lines you’ll see on West Palm Beach roofs: TW Metal and Tile Underlayment (a self-adhering, high-temp product used under metal and tile) and the more common Proline and Moisture Guard series used under asphalt shingles. The compatibility gotcha most homeowners run into is temperature rating. TW is rated to 260°F, which matters under metal panels and barrel tile that bake in a Florida summer. Moisture Guard 45 and 60 are peel-and-stick products with slip-resistant surfaces, but they are not interchangeable with TW on high-heat applications. If your roof has a metal roof-over or concrete tile, using a standard felt or lower-rated synthetic can void the Tamko warranty and fail prematurely. We match the underlayment to the roof system, not just the shingle brand on top of it. We install Tamko-brand underlayment as well as quality equivalents from GAF, Owens Corning, and CertainTeed when a specific product is on backorder or a homeowner wants a price comparison.

Signs Your Tamko Underlayment & Deck Repair Is Failing

• Water stains on ceilings or attic rafters after rain. This means the underlayment has already been breached and the decking below has absorbed water. In West Palm Beach, a stain that appears in August likely started with hairline cracks in the underlayment back in May.
• Attic smells earthy or musty during the day. Heat cooks moisture out of soaked decking and into the attic air. If you notice it before you see stains, you may have caught the decking before full rot sets in. That’s a cheaper repair.
• Shingles look wavy or uneven from the ground. Underlayment that has wrinkled or bubbled telegraphs through the shingles above it. The decking underneath is often swelling from trapped moisture.
• Interior drywall feels soft or spongy near the ceiling line. This is the last stage before visible water damage. The decking is fully saturated and likely needs section replacement, not just re-nailing.
• Granules collecting in gutters paired with recent patching attempts. If a previous owner patched shingles without replacing the underlayment underneath, the patch holds for a season and then fails as the underlayment continues to degrade. We see this often on older homes in neighborhoods like Flamingo Park and El Cid.

Replacement Cost & What’s Included

For a typical single-story West Palm Beach home with a 4/12 to 6/12 pitch, budget roughly $900 to $1,800 for underlayment replacement on a smaller roof section, and $1,800 to $2,400 when we are replacing underlayment across a full roof and repairing or replacing multiple sheets of decking. Decking replacement runs around $3 to $5 per square foot for CDX plywood or OSB, depending on thickness and current lumber pricing. The factors that shift your number are roof accessibility, how much decking has to come out, and whether we are working around tile or metal mechanical fasteners that slow the tear-off. You get a written line-item price before any work starts, and that number is the number. Erik Lindgren is particular about this: “The price I hand you before we start is the price on your final invoice – that’s just how we work.” The work is covered by our 365-Day Done Right Promise, and the underlayment itself carries the manufacturer’s warranty once installed to spec.

DIY or Call Us?

For underlayment and decking work, this is not a weekend project. Removing shingles and old underlayment while standing on a roof in West Palm Beach heat is genuinely dangerous work, and one wrong step on a rotted deck section can put you through the ceiling. There is a safe middle ground: you can check your attic for daylight coming through the decking, look for staining on the underside of the roof boards, and clear debris from valleys and scuppers. That gives us useful information before we arrive. What an owner should not do is tear off a section of shingles, expose the underlayment, and try to patch it with roofing cement or a tarp. That creates a bigger leak than you started with and can void your Tamko material warranty. If you are seeing any of the signs above, call (728) 220-0842 and we will schedule a free inspection. No pressure, no vague hand-wave about “maybe it’s fine” – we will show you photos and give you a written number.

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