Tamko Underlayment & Deck Repair in Dallas, TX

Tamko Underlayment & Deck Repair: The Dallas Owner’s Guide

Tamko underlayment and deck repair in Dallas typically runs $1,200-$2,800 installed, depending on how much decking needs replacement and whether we’re matching existing Tamko Heritage or Titan XT shingles. We stock Tamko-compatible underlayment on every truck, and most deck repairs we can start same day you call. Homeowners usually spot this problem after a hard rain: water stains spreading across the ceiling, shingles that look fine from the street but feel spongy underfoot, or that telltale smell of damp plywood in the attic after one of our spring thunderstorms rolls through.

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Which Tamko Models This Applies To

This work applies across Tamko’s full residential line sold in Texas: Heritage, Heritage Vintage, Heritage IR, Titan XT, and the older Lamarite and Elite Glass-Seal lines still common on Dallas homes built in the 1990s and early 2000s. The critical match isn’t the shingle brand itself but the underlayment system beneath it and the condition of the wood deck, typically OSB or plywood sheathing rated for roof loads.

To identify what you’ve got, check the shingle bundle wrappers if any are stored in the garage, or look for the Tamko name stamped on the shingle backside if you can safely lift a loose edge. The real compatibility gotcha in Dallas is this: Tamko Titan XT’s heavier laminate construction requires a stiffer deck, minimum 7/16″ OSB or 15/32″ plywood by code, and we’ve found homes in older Lakewood and Kessler Park neighborhoods where previous roofers laid it over 3/8″ that was already sagging between trusses. That 1/16″ gap matters more than people think once summer heat starts the expansion cycle.

We use Tamko’s own MetalWorks and StormFighter IR underlayment where the system calls for it, or we can match with quality aftermarket equivalents from the same mills that supply Tamko’s private-label products. The OEM route costs more upfront but preserves your full warranty chain; aftermarket saves money and performs the same function if installed correctly. Clint Harwell makes that call with you on the roof, not from a desk, after he’s seen what’s actually under the shingles.

Signs Your Tamko Underlayment & Deck Repair Is Failing

• Water spots that reappear after every rain. This usually means your underlayment has torn at a valley or penetration, letting water run across the deck until it finds a fastener hole or seam. The shingles themselves may look intact; the failure is underneath.
• Soft or bouncy spots when you walk the roof. That’s compromised decking, often OSB that has absorbed moisture and started to delaminate. In Dallas, this accelerates when attic ventilation is poor and summer heat drives moisture back into the sheathing from below.
• Granules collecting in gutters but shingles look young. Premature granule loss on Tamko Heritage often traces to trapped moisture against the shingle backside, caused by underlayment that has wrinkled or shifted and created a vapor dam.
• Shingle edges curling or tabs lifting in odd patterns. When decking warps from rot, it telegraphs through to the shingle layer. You’ll see this first on south-facing slopes where Dallas heat is most intense, typically after the deck has been wet for two or more seasons.
• Daylight visible from the attic through the roof deck. This is advanced failure: the underlayment has degraded completely and the decking itself has rotted through or pulled from fasteners. Any rain at this stage hits insulation, drywall, and framing directly.

Replacement Cost & What’s Included

What drives the range: how much decking is actually bad versus merely damp, whether we can work from the top or need interior protection, and how many layers of old roofing we’re stripping to get to the deck. We quote upfront, one number that includes parts, labor, disposal, and the 90-Day Done Right Promise. If we open it up and find more damage, we photograph it, call you before proceeding, and the price we agreed to is the price you pay for the scope we agreed to. No surprises, no padding.

The work carries our written workmanship guarantee: if it’s not right, we come back and make it right. No forms to mail, no arguments about whose fault it was.

DIY or Call Us?

There’s a short list of things a homeowner can safely check: attic stains, daylight through the deck, whether gutters are draining properly. That information helps us when you call. What you should not do is climb onto a compromised deck, tear off shingles to inspect underneath, or attempt to replace decking yourself. Roof decking is structural; cut the wrong board or miss a truss location and you’ve created a fall hazard plus a bigger repair. Tamko underlayment also needs to be installed to manufacturer’s nailing patterns and overlap specs, or you void the warranty and create leak paths that won’t show for months.

We’ve been called to fix DIY deck repairs in Dallas where the homeowner used interior-grade plywood, or nailed underlayment with roofing nails that were too short for the shingle layer above. The materials cost more the second time, and so does the labor to undo what’s wrong. If you’re unsure what you’re seeing, call us at (888) 309-8379. We’ll walk through it with you over the phone, and if you need us out, we’re there.

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