Tamko Underlayment & Deck Repair Nationwide

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

Tamko underlayment and deck repair in Orlando typically runs $850 to $2,400 installed, depending on how much decking has failed and which underlayment your roof system calls for. We stock Tamko-compatible underlayment on our trucks and can usually complete the job same day once we’ve assessed the damage. Most Orlando homeowners discover the problem after a wind-driven rain, when water stains bloom across a bedroom ceiling or a musty smell settles into the attic. The underlayment, which is the waterproof barrier between your roof deck and shingles, has one job: keep water out. When it fails, the plywood deck beneath it starts to rot, and the repair stops being a patch job and becomes a section replacement.

Call (448) 218-0800

Here’s the thing about underlayment in Central Florida: it fails silently. You won’t see it from the curb. By the time you notice a ceiling stain or curling shingles, the decking underneath has often been wicking moisture for months. If you’ve got a Tamko roof system and suspect underlayment trouble, the faster we open it up, the less decking we replace. And decking is where the bill climbs, because plywood doesn’t forgive Orlando humidity.

Which Tamko Models This Applies To

Tamko doesn’t manufacture underlayment as a standalone retrofit product for old roofs. What we’re really talking about is the underlayment specified within Tamko’s roofing systems: Heritage series shingles, Elite Glass-Seal, and metal roofing lines like MetalWorks and Apex all have manufacturer-specified underlayment requirements. Tamko’s TW Metal and Tile Underlayment is common on Orlando tile and metal roofs, while TW Underlayment 30 and TW Moisture Shield 40 show up under shingle systems. The compatibility gotcha, and this one catches people, is that Tamko’s system warranty often requires a specific underlayment class. Slap a budget 15-pound felt under Heritage shingles and you may have voided the manufacturer’s material warranty from day one. The label on the underlayment roll and the shingle wrapper both matter when we match a repair to an existing Tamko install.

For deck repair, the compatibility question centers on deck thickness and fastener type. Most Orlando homes built since 1990 sit on 15/32-inch CDX plywood or 7/16-inch OSB. Older Orlando homes, and we see plenty of these in College Park and Winter Park, may have 1/2-inch plywood or even spaced board sheathing that predates modern nailing patterns. Tamko’s installation specs assume a minimum 3/8-inch deck thickness, and we routinely find rot-softened plywood that measures fine at the edge but crumbles under a hammer test near roof penetrations. The aftermarket decking choices, primarily CDX plywood or OSB in matching thickness, are functionally equal to what Tamko specifies, and the real decision is whether to replace only rotted sections or re-sheet the entire slope so the underlayment lies flat without humps and dips.

Signs Your Tamko Underlayment & Deck Repair Is Failing

• Water stains on ceilings or walls. When underlayment fails, water migrates through the deck and follows rafters before dripping on drywall. The stain location often sits feet away from the actual roof leak, which is why Orlando roofers call water “the liar.”
• Peeling or bubbling paint near roof edges. Trapped moisture travels downhill under the shingles and wicks into fascia boards and exterior walls. Bubbling paint at the eave line usually means the underlayment edge has failed and water is draining behind the drip edge.
• Soft spots you can feel when walking the roof. A spongy deck means the plywood or OSB has absorbed water and started to delaminate. This is past underlayment failure, and every square foot of soft decking gets cut out and replaced before new underlayment can go down.
• Attic mustiness or visible mold on rafters. Failed underlayment feeds humidity into the attic, and Orlando’s climate does the rest. Mold on the underside of decking is a sign that the wood has been wet for months, not days.
• Shingles lifting at seams or pulling free in the wind. Underlayment that has wrinkled, torn, or rotted no longer anchors shingles properly. Water works between the shingle seams, saturates the underlayment, and then the deck, and then the whole assembly fails in sequence.

Replacement Cost & What’s Included

For Orlando homes, expect most Tamko underlayment and deck repairs to fall between $850 and $2,400. A small underlayment patch with no decking replacement lands at the low end. A full slope re-deck with new Tamko-compatible underlayment and shingle re-installation pushes to the high end, and larger roofs with steep pitches can exceed it. The honest variable is deck condition: we don’t know how much plywood has failed until the shingles come off and we can see the wood. Our written estimate, delivered before any work starts, states exactly what we’ll replace and what we’ll do if we discover additional rot once we open the roof.

Every repair includes the material, the labor, the disposal, and a written line-item price that won’t change mid-job. The 365-Day Done Right Promise covers the repair for a full year. If the same section fails within 365 days, we return and fix it at no charge, no negotiation. That’s in writing, included with every job. If it’s not in writing, it’s not a promise. We also stock Tamko-compatible underlayment alongside GAF, Owens Corning, and CertainTeed products, so material availability is rarely the thing that slows the job down.

DIY or Call Us?

You can safely inspect from the ground or a ladder: look for lifted shingles, visible underlayment at roof edges, granules in the gutters, and interior ceiling stains. Climbing onto the roof itself is where homeowners get hurt. A steep Orlando roof after an afternoon shower is slick as glass, and finding a soft deck section by stepping through it is how people break ribs and worse. Roofing is one of the few trades where the inspection itself can injure you. If you suspect underlayment or deck failure, call us at (448) 218-0800. We’ll assess it from the roof, show you photos of what we find, and give you the written price before you commit to anything.

Key Takeaways

• Tamko system underlayment failure in Orlando usually shows up as interior water stains, attic humidity, or soft decking.
• Installed repair work runs $850 to $2,400, and the price hinges on how much decking has rotted.
• We stock Tamko-compatible underlayment and decking on our trucks for fast turnaround.
• Every repair carries the 365-Day Done Right Promise in writing, including a free second visit if it fails.
• Crestview Roofing Co Orlando is an independent service provider, not affiliated with Tamko. We repair and install Tamko systems using manufacturer-specified materials.

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