Knowing where your roof actually stands is the foundation of every good roofing decision, and that starts with a real inspection.
Reading your attic for roof clues
The attic tells the truth about a roof: water stains, damp insulation, daylight through the deck, and rusty nails all point to problems. A quick attic check after a storm often reveals leaks before they reach the ceiling.
Tear-off versus roofing over
Roofing over an existing layer is cheaper and faster but hides decking problems and voids many warranties. A full tear-off costs more but lets the roofer inspect and repair the wood beneath, which is the only way to guarantee a sound, long-lasting roof.
Signs your decking is failing
Spongy spots underfoot, sagging between rafters, and visible daylight or water stains in the attic all point to decking that needs replacement. Sound decking is non-negotiable for a roof that will last.
Why roofs leak
Most leaks don't start in the open field of the roof; they start at transitions, penetrations, and worn flashing. Tracing a leak to its true source, rather than just patching the stain below it, is what actually stops the water.
The decking under your shingles
The plywood or OSB decking is the foundation the entire roof relies on, and soft or rotted sections must be replaced during a tear-off. Skipping bad decking to save money guarantees the new roof will fail early over those spots.
Frequently Asked Questions
What are the signs I need a new roof?
Curling or missing shingles, granules in the gutters, dark worn patches, a sagging roofline, and daylight or stains in the attic are the classic warning signs. Several of these together usually mean replacement.
Can I just roof over my old shingles?
You can, but it hides decking problems and voids many warranties, so a full tear-off is almost always the better long-term choice. Tearing off lets the roofer find and fix damage underneath.
Should I repair or replace my roof?
Isolated damage on an otherwise sound roof is a repair; widespread wear, multiple leaks, or an aging roof usually calls for replacement. A professional inspection gives you a straight answer instead of a guess.
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