How to Inspect Your Roof From the Ground and the Attic

You can check a pitched roof’s main failure points without leaving the ground: binoculars show missing or damaged shingles and lifted flashing, the gutters show what the roof is shedding, and a flashlight in the attic shows stains and daylight. InterNACHI’s standard lets professional home inspectors work from the ground or the eaves too, so staying off the roof is a method, not a shortcut.

Plan on daylight, dry weather and a calm day.

The Rules for a No-Climb Inspection

Professional home inspectors working under the InterNACHI Home Inspection Standards of Practice (October 2022 revision) “shall inspect from ground level or the eaves,” and nothing in that standard makes them walk the roof. A homeowner has even less reason to go up. OSHA’s fall prevention campaign reports that falls kill more construction workers than any other cause, and those are workers whose employers must provide fall protection.

Four rules hold for the whole route:

1. Stay on the ground, or in the attic standing on framing. Do not step onto the roof.
2. If you use a ladder to look into a gutter, set it up by the ladder angle, extension and securing rules, keep your body between the rails, and do not lean out to reach.
3. Do not inspect during a storm or while the roof and ground are still wet and windy afterward. Wait for a calm, dry day.
4. Keep any ladder at least twice its own length from the nearest overhead power line. That clearance comes from the Consumer Product Safety Commission’s power-line ladder warning.

This method has limits. A low-slope roof or an upper roof you cannot see from the ground, and a home with no attic access, need a roofer’s inspection. So does anything you cannot judge from a distance, such as whether shingles are nailed properly.

The Ground Walk: What to Scan With Binoculars

Start at one corner of the house and walk all the way around, stopping to scan each slope from at least two angles. Morning or late afternoon light shows texture and lifted edges better than midday sun.

On a pitched roof, HUD’s Residential Rehabilitation Inspection Guide has inspectors look for worn or loose flashing and visible damage to the shingles, and binoculars reach both. Scan for each item in turn:

• Shingles: missing, cracked or warped pieces, the damage that the National Roofing Contractors Association’s resources page says twice-yearly inspections can catch, plus torn tabs.
• Curling and bare spots: edges that turn up or down, and patches darker than the rest where granules are gone. HUD’s guide says shingles that lose granules and start to curl should be replaced.
• Flashing: metal at the chimney, along walls, around skylights and at the bottom of walls where a roof edge meets siding. Look for gaps, lifted edges or rust.
• Penetrations: plumbing vent pipes and roof vents. A cracked or split boot around a pipe can show in binoculars, though fine cracks may not.
• Valleys: leaves, needles or debris piled where two slopes meet.
• Roof lines: the ridge and eaves should run straight. A dip is a structural question for a professional.
• Growth: dark streaks, moss or lichen. Note where it is and how thick.

Take a photo of anything you mark, zoomed in, and a wider photo that shows where it is on the house.

What the Gutters and Downspouts Tell You

Gutters collect what the roof gives up, so they are evidence even when the roof looks fine from below.

• Granules: some granules in a gutter are not, by themselves, a failing roof. Large amounts together with bare spots on the shingles are. How to read granules in the gutter covers the difference.
• Shingle pieces or nails in a gutter after wind point to damage above.
• Debris and standing water: HUD’s guide also counts debris-filled gutters among its roof checks. A clogged gutter can back water up under the roof edge.
• Overflow marks: stains or worn paint on the fascia and siding below a gutter show where water spills over.
• Downspouts: one that drains onto a lower roof concentrates water on one strip of shingles. Look at that strip for wear.
• Sagging or loose gutters: a gutter pulling away from the fascia can mean rotted wood behind it.

Look from the ground first. If you need a closer view, use the ladder rules above and look; do not lean out or reach across.

The Attic Check With a Flashlight

The attic shows the underside of the roof, where leaks begin before they reach a ceiling. Go on a dry day soon after a rain, when fresh leaks still show, and take a strong flashlight and your phone.

Footing comes first. Step and kneel only on the framing members (joists or truss bottom chords) or on boards laid across them. The drywall or plaster ceiling between them will not hold your weight. Watch for nails coming through the deck overhead. If the insulation is loose, pebble-like vermiculite, EPA’s page on vermiculite attic insulation says to assume it may contain asbestos and to leave it undisturbed, so look from the hatch instead of crawling across it.

Then work from one end to the other and check:

• Stains on the deck underside and rafters, especially around the chimney, vent pipes, skylights and valleys. Damp wood, or wood that is both dark and soft, points to a current or recent leak. Dry, faded rings may be old.
• Daylight through the deck. Turn off your flashlight and look. Light coming through anywhere except a vent opening built into the ridge or the eaves means an opening in the roof.
• Frost, damp sheathing or water drops hanging from nail tips in cold weather. That pattern points to moisture from the house condensing in the attic, not a roof leak; see where attic frost and nail drips come from.
• Wet, matted or stained insulation below any of the above.
• Dark staining or fuzzy growth on wood, a sign that moisture has stayed there for a while, from a leak or from condensation. Photograph it and note its location.
• Sag between rafters or a framing member that looks cracked or bowed.

Record Findings So a Roofer Can Act on Them

A roofer can act faster on a log than on a description. Make a simple sketch of the roof from above, label each slope (front, back, left, right, or by compass direction), and mark the chimney, vents and skylights as reference points.

For each finding, record the date, the slope, its position measured or estimated from a reference point, and the photo numbers. In the attic, measure from a wall or a vent pipe so the roofer can find the same spot from outside. Keep the log with your roof records and repeat the route on a regular schedule; the seasonal roof maintenance checklist fits it into the year.

Which Findings Mean Call a Roofer This Week?

Sort what you found into three groups: act this week, schedule soon, or monitor. The table gives the likely meaning of each finding; your roofer confirms it.

If you found a dip, which sags are emergencies explains when to clear the rooms below.

For what a professional inspection adds and how to read its report, see how roofers, home inspectors and engineers inspect and report. For whether the whole roof is near the end of its life, see which signs point to replacement rather than repair. Send your log and photos with the call, and ask the roofer to answer each item in writing.

This guide is general information for U.S. homeowners, not legal, insurance, tax, or engineering advice. Codes, laws, and policy terms vary by location and change over time; confirm details with your local building department, your insurer, or a licensed professional.

Sources

• InterNACHI Home Inspection Standards of Practice, International Association of Certified Home Inspectors
• OSHA’s Fall Prevention Campaign, U.S. Occupational Safety and Health Administration
• Ladders and Electricity Don’t Mix, U.S. Consumer Product Safety Commission
• My attic has vermiculite insulation in it. Am I at risk? Should I take it out?, U.S. Environmental Protection Agency
• Residential Rehabilitation Inspection Guide, U.S. Department of Housing and Urban Development
• Resources (warranties, maintenance, weather events), National Roofing Contractors Association