What can you tell from the ground?
Stand back from the house and look along each slope. A sound roof reads as a flat, even field. Light falls on it the same way from edge to edge.
Curled or cupped tabs across the whole slope are age. So are cracks that run in no clear pattern. That is the shingle mat drying out and shrinking.
A few lifted or missing shingles in one spot after a storm are damage, not age. Damage is repairable, and a repair on a healthy roof lasts for years.
Dark patches that look bald mean the surface granules have washed away. Those granules are the sunscreen for the shingle. Without them the mat cooks.
What do the gutters tell you?
Every asphalt roof sheds some granules. A new roof sheds loose ones in the first year. That is normal and it stops.
A steady load of granules in the gutters years later is not normal. It means the surface is wearing off faster than the roof can spare.
Scoop a handful out of the downspout outlet in the spring. If it looks like coarse sand every year, the covering is on its way out.
What should you look for in the attic?
Go up on a dry day with a torch and turn the light off for a moment. Daylight showing through the boards means gaps that water can use.
Dark streaks or rings on the wood mark old leaks. Soft or spongy wood means water has been sitting there long enough to do real damage.
Damp insulation is a warning on its own. Wet insulation stops working, and a cold spot in the attic feeds the next ice dam.
Check around the chimney, the vents, and any valley. Those details fail long before the open field of the roof does.
How old is too old?
Age alone does not decide it. Two roofs of the same age can be in very different shape depending on how they were installed and how much sun and wind they take.
Coastal exposure shortens the clock. Salt in the air attacks the metal parts first. Flashing, drip edge, valley metal, and fasteners often give up before the shingles do.
If you do not know the age, look for a permit record with the city. A previous replacement is usually on file with the building department.
Should you repair or replace?
Repair when the roof is sound and the failure is local. One failed pipe boot, one cracked flashing, or one lifted ridge is a repair.
Replace when the covering is at the end of its life or the same trouble keeps coming back in new places. Money spent patching a finished roof is money spent twice.
A useful question is how many separate repairs the roof has needed in the last three winters. More than a couple on an old covering points one way.
- Granules filling the gutters every year, not just the first year.
- Curling, cupping, or cracking across a whole slope rather than one patch.
- Bald dark patches where the surface has worn through.
- Daylight, damp wood, or wet insulation visible from the attic.
- Three or more separate leaks in different places within a few years.
- Flashing and vents corroded through on a roof that is already old.
What should a quote tell you?
A written quote should name the materials and the scope. That means the shingle line, the eave protection, the flashing, and the ventilation plan.
It should also say what happens if something turns up once the old covering is off. Wood that has been wet for years is not visible from the surface.
Ask what the roofer saw, not just what it costs. Photographs of the roof are the cheapest way to understand what you are buying.
Getting a straight read on a roof takes a look at the surface, the details, and the attic together. If your roof is old and the leaks keep moving, it is worth having someone say plainly which case you are in. See roof replacement or get in touch.