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Roof Care Guide
How To Avoid Costly Roof Repairs: Six Habits, And The Early Signs Your Roof Needs Repair
Expensive roof repairs almost always start as cheap ones. Here are the early signs worth catching, and six habits that keep a small repair from becoming a big one.
Why Small Roof Repairs Turn Into Big Ones
A missing shingle costs very little to replace. What makes a roof repair expensive is water reaching wood. Once it gets past the shingles it soaks the underlayment, then the roof deck, then the insulation and the ceiling below, and every one of those layers costs more to fix than the one above it.
Water also travels. It runs along a rafter or the underside of the roof boards before it drips, so the stain on your ceiling is often several feet from where the water got in. By the time you see it inside, it's usually been getting in for a while.
And in Massachusetts, winter makes it worse. Water that gets under a lifted shingle in November freezes, expands, and opens the gap a little wider every cold night. A repair that was one shingle in the fall can be a section of rotted decking by April.
Signs Your Roof Needs Repair, Before It Leaks
These are the early ones, the signs that show up while a repair is still small.
- A shingle missing, or a piece of one lying in the yard after a windy night
- Shingles that look lifted or out of line with the row they sit in
- Flashing around the chimney that's bent, pulled away, or covered in cracked sealant
- A cracked rubber collar around a plumbing vent pipe, one of the most common small leaks there is
- Heavy granules collecting at the bottom of a downspout
- A nail head that has worked up through a shingle
- Dark spots on the underside of the roof boards in the attic, or insulation that feels damp
- Ice dams along the eaves last winter, even if nothing leaked
If water is already coming inside, you're past the early stage. Call us at 978-647-3626; our roof repair crew holds a 48-hour response time on repair calls.
Six Habits That Keep Roof Repairs Small
None of these needs you on the roof.
- Look at the roof twice a year from the ground. Once in spring after the snow is gone and once in fall before it arrives, plus after any storm with real wind. Binoculars from the yard catch most of what matters. Walk all the way around, because the side you never see is usually the side with the problem.
- Keep the gutters clear. A full gutter backs water up under the lowest row of shingles and into the fascia. Our guide to how clogged gutters cause roof leaks shows the path the water takes.
- Cut back the branches. Limbs that hang over the roof drop leaves into the valleys, scrape shingles in the wind, and keep the roof shaded and damp. Trimming them back is one of the cheapest things you can do for a roof.
- Check the attic after a heavy rain. Take a flashlight up the next dry day and look along the underside of the roof boards, around the chimney, and around every pipe that comes through. A stain that wasn't there last time tells you where to look outside.
- Keep the attic cold and dry. Poor ventilation cooks shingles from underneath in summer and feeds ice dams in winter. Our guide to attic insulation and roof ventilation covers the signs.
- Fix the small thing the same season you find it. This is the habit that saves the most money. A lifted shingle or a cracked vent boot is a short visit in October. After a winter of freeze and thaw, it's a bigger job.
Quick Fixes That Make It Worse
Some of what gets done to roofs in the name of maintenance shortens their life.
- Pressure washing. It strips the granules that protect the shingle from the sun. Moss and streaks come off with a gentle cleaner and a soft brush, or leave it to a roofer.
- Roof cement over everything. A layer of tar around a chimney looks like a fix, but it cracks, traps water behind it, and hides the real problem. When we find it, we pull it off and rebuild the flashing underneath.
- Walking the roof to look. Footsteps scuff granules and crack cold shingles, and a fall from a one-story eave is still a trip to the hospital.
- Raking snow with a metal tool or chipping ice. Both tear shingles. If ice dams are the problem, our guide to what causes ice dams covers what works.
What A Roof Inspection Catches
A look from the ground catches the obvious problems. An inspection catches the ones that become expensive. When we inspect a roof we check the shingles slope by slope, the flashing at every chimney, wall, and vent, the valleys, any soft spots in the decking, and the attic ventilation. Then we tell you what needs fixing now, what can wait, and what to keep an eye on.
The inspection is free, and once a year is a good rhythm for most houses. If your roof came through a hard winter or a big storm, add one after it. Our winter roof checklist covers what to look at before the snow.
When Repairs Stop Making Sense
Keeping repairs small works for most of a roof's life. Near the end of it, the repairs start coming closer together, and that's the sign to start planning a replacement instead of paying for the next patch. Our guide to roof repair or replacement covers how to tell, and the 25% roofing rule explains why about a quarter of the roof is the usual tipping point.
Every repair is different, so we don't quote one over the phone. The assessment is free, and financing on repairs starts at 0% for 12 months through GreenSky. Details are on our financing page.
Seen one of the early signs?
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Roof maintenance questions we get all year
What are the signs your roof needs repair?
The early signs are a missing or lifted shingle, bent or cracked flashing around the chimney, a cracked rubber collar around a plumbing vent, heavy granules at the bottom of a downspout, and dark spots or damp insulation in the attic. A stain on a ceiling or an upper wall means water is already inside, and the repair is more urgent. Ice dams last winter are worth an inspection even if nothing leaked.
How often should a roof be inspected?
Once a year is a good rhythm for most houses, plus a look after any storm with strong wind or hail. Spring is a good time, because you can see what the winter did. You can check from the ground with binoculars twice a year yourself. Our roof inspection is free.
Is roof cement a good fix for a leak?
Only as a temporary patch. Roof cement cracks as it ages and weathers, and once it does it traps water behind it instead of keeping it out. It also hides the real problem, which is usually failed flashing or a damaged shingle. A proper repair replaces the flashing or the shingle and leaves no tar behind.
Can I replace a few missing shingles myself?
On a low, single-story roof in dry weather, some homeowners do. The hard part is getting the new shingle under the row above without cracking it and nailing it where the nails will be covered. A mistake there causes the next leak. Matching the color on an older roof is also tricky. If the roof is steep, two stories up, or the shingles are cold and brittle, leave it to a crew with harnesses.