American Allegiance Construction | Roofing Services in Corpus Christi, TX 78401

Common signs in Corpus Christi include interior water stains on ceilings, a spongy feeling when walking on the roof, or visible sagging. High humidity and storms can compromise the underlayment beneath the shingles, leading to decking rot. We recommend a professional inspection, as surface shingles can sometimes look fine while the critical layers beneath are failing.

Repairing decking rot is a critical process. We safely remove the damaged shingles and underlayment to fully expose the roof deck. All rotted wood is then cut out and replaced with new, treated plywood or OSB to restore structural integrity. Finally, we install a new, high-quality synthetic underlayment and shingles, ensuring your roof is sealed against our local moisture and wind.

In our coastal climate, underlayment acts as a secondary waterproof barrier. It protects the roof deck from wind-driven rain that can get under shingles and from condensation that builds up due to high humidity. Using the right, durable underlayment is essential to prevent the decking rot we frequently see, making it a vital investment for long-term roof health.