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Houston Roof Deck Repair & Sheathing Replacement


Your roof is only as strong as the wood decking nailed across your rafters. You can buy the most expensive shingles on the market, but if they are nailed into rotten, soft, or delaminated wood, those nails won't hold, and the next storm will pull them right off. In Houston, roof decking takes a beating from both sides: 150° attic heat from underneath, high humidity, and slow leaks around vents and valleys from above. At Standard Roofing, we handle complete structural wood repair and deck replacement. We don't paper over soft wood with underlayment, and we don't surprise you with hidden fees. If we find bad decking during a job, we take photos, show you exactly what is damaged, and charge a clear, flat rate per sheet to fix it.

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How to Tell if Your Roof Decking Has a Problem

Roof decking issues often hide beneath shingles until serious moisture damage sets in. Here are the clear physical warning signs our crew looks for during an inspection:

01

Spongy Spots Underfoot

When walking the roof, a section dips or feels soft beneath your boots—usually right near a plumbing pipe, chimney, or roof valley.

→ Water has been quietly seeping in for months, soaking the wood deck panels before moisture ever shows up inside the house.

02

Bouncing Between Rafters

The wood feels completely dry, yet the deck visibly flexes and gives when you take a step between the rafter supports.

→ This happens when original builders used undersized thin plywood without installing metal H-clips between panels to lock sheet edges together.

03

A Wavy or Buckled Roofline

Looking up from the curb or driveway, the roof surface appears uneven, rippled, or noticeably distorted across certain slopes.

→ Trapped attic humidity and extreme summer heat cause wood panel edges to swell and crown, rather than an issue with the shingles themselves.

Why Roof Decking Deteriorates in Houston

Wood sheathing in Southeast Texas breaks down differently than in drier climates:

01

Attic Heat and Trapped Humidity

When an attic lacks proper intake and ridge vents, summer temperatures can easily reach 150° with 80% humidity.

→ Over time, that constant trapped moisture breaks down the resins in OSB board, causing the layers to swell and separate so roofing nails pull out easily.

02

Slow Leaks at Roof Vents and Valleys

Houston's sudden downpours test flashing details. When a rubber pipe collar cracks from UV heat or valley flashing corrodes, rain penetrates the deck edges.

→ Rainwater seeps directly into the raw edge of the decking, turning solid wood into soft, rotten mush.

03

Old Pine Plank Shrinkage in Historic Homes

In older areas like The Heights or Garden Oaks, homes were often built with 1x6 or 1x8 pine planks instead of modern plywood.

→ Over decades of attic heat, these boards shrink and pull apart, leaving wide gaps where roofing nails simply shoot into thin air.

Houston roof decking evaluation and wood repair process by Standard Roofing

Honest Wood Diagnostics

Roof Deck Repair vs. Replacement in Houston, TX: How We Evaluate Your Wood Decking

Not every dark water mark on the wood means you need brand-new decking. Our rule is simple: we test the actual strength of the wood before recommending you spend money replacing it. If it holds nails securely and supports weight, we leave it alone. If it is rotten or crumbling, we fix it so your new shingles do not blow away.

  • Dark Water Stains (Wood is Still Hard)

    If the wood has dark rings from an old, dried-up leak but the timber is solid and passes our probe test, we leave it in place. There is no reason to charge you for wood that is completely structurally sound.

  • Small Rotten Spots Around Vents or Valleys

    When wood rot is limited to a small area around a pipe boot or valley, we do not tear off the whole roof deck. We cut out the soft section cleanly back to the center of the rafters, add solid 2x4 framing support underneath, and nail in a fresh patch matched to your roof's exact thickness.

  • Crumbling or Swollen OSB Panels

    When boards are flaking apart and nails pull out by hand, the wood has lost its grip. We pull up the full 4x8 sheet and install a fresh panel so every shingle nail bites tight.

  • Old Pine Boards with Large Gaps (Older Homes)

    If your home has original 1x6 pine boards that have shrunk and left wide gaps, nails will punch through open air. We screw new plywood sheets directly over the old planks to give your new roof a solid, code-compliant base.

  • Sagging or Cracked Rafters

    If the framing beams under the wood are split or bowing, replacing the plywood alone will not solve the dip. We sister the framing by bolting heavy new 2x6 or 2x8 lumber alongside the damaged rafter to level the roofline back out before new decking goes down.

Why Houston Homeowners Trust Us With Structural Deck Repairs

  • Photo Proof Before Any Work: If we uncover rotted wood during tear-off, we take clear, date-stamped photos to show you the damage before replacing anything.
  • Fair, Upfront Per-Sheet Pricing: You will never get an inflated bill at the end of the job. Our per-sheet replacement price is written into your estimate before we pull the first shingle.
  • Done Right to Rafter Centers: We never nail replacement patches into thin air or rely on shortcuts. Every piece of new wood is anchored directly into solid framing with proper structural blocking.

Our Trust and Proof

Licensed & Certified

  • GAF Master Elite — issued by GAF
  • CertainTeed Select Shingle Master — issued by CertainTeed
  • NRCA Certification — issued by National Roofing Contractors Association

Verified Reviews

Google ★★★★★5.0

Great service! My new roof was installed quickly and looks fantastic. Highly recommend!

Yelp ★★★★★4.9

Professional and efficient. They handled everything from permits to cleanup. Very happy with the results!

BBB ★★★★★4.9

Excellent experience from start to finish. The team was knowledgeable and answered all my questions.

Customer Reviews for Deck Repair and Replacement

Real experiences from customers who chose our Roof Replacement services.

“They did an excellent job, professional, on time, and great quality work. Highly recommended for any roofing needs! ”

J

hamza hasan

Homeowner, Houston TX

“Standard Roofing did a fantastic job replacing our roof. They were very professional and efficient. I highly recommend them. ”

M

Biljeet Kaur

Homeowner, Spring Branch

“The roof replacement process was smooth and hassle-free. They kept me informed throughout and delivered on time. Great service!”

D

David R.

Homeowner, Galleria

Frequently Asked Questions About Roof Decking

Straight answers about rotten plywood, wood inspection standards, and per-sheet replacement costs from our local Houston crew.

How much does it cost to replace roof decking in Houston?
Replacing damaged roof decking generally costs between $75 and $125 per 4x8 sheet installed. That price includes pulling the rotten wood, installing fresh CDX plywood or OSB, matching sheet thickness, and fastening it securely into structural rafters. We lock this per-sheet price in your written estimate upfront so there are zero surprises.
Can you tell if decking is rotten before tearing off the shingles?
In many cases, yes. We can spot spongy dips underfoot during our roof walk and inspect the underside of the wood from inside your attic for dark water trails or white mold. However, minor surface rot directly beneath old underlayment can only be 100% verified once the old shingles are stripped down to bare wood.
Do you have to replace the whole sheet for a small rotten spot?
Not always. If the rot is confined to a small area around a plumbing pipe or vent, we cut out the damaged section cleanly back to the center of the rafter supports, add solid 2x4 framing blocking underneath, and nail in a tight-fitting patch. If water damage spans across multiple rafter bays, replacing the full 4x8 sheet is the only safe structural fix.
Which is better for Houston roofs: CDX plywood or OSB?
Both are code-approved, but CDX plywood handles Houston's intense humidity and slow leaks better. When OSB gets wet, its edges swell permanently and take longer to dry out. Plywood expands slightly when damp but dries flat and retains its original nail-holding strength.
My older home has 1x6 wood planks with gaps. Can you shingle over it?
City of Houston building codes require a solid decking surface with no gaps wider than one-quarter inch. If your historic home has shrunk pine planks, shingle nails will blow right into open air. We install 7/16-inch OSB or plywood directly over the existing planks to provide a solid, code-compliant foundation.
Will insurance cover rotten roof decking?
Standard insurance policies cover sudden storm damage like hail impacts or trees falling through a roof, but they generally exclude gradual rot and wear over time. However, if storm damage directly caused the roof breach that let rain in, decking repairs tied to that specific storm can often be included in your claim.

Contact Our Roofing Experts

We invite you to reach out for all your roofing needs. Our team is available Monday to Friday, ready to assist you with prompt responses.

Or call us right now at (713) 347-3802 — we answer.

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  • Address

    215 Rittenhouse St Unit E, Houston, TX 77076, United States, Houston, Texas

  • Hours

    Mon–Fri: 7AM – 7PM
    Sat: 8AM – 4PM
    Sun: Emergency Only
    24/7 Emergency Available