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Attic ventilation · solar vents · exhaust hookups

Attic ventilation and exhaust vents, done from the roof side.
You don’t have to wait for a leak.

Most roof work gets booked when it rains. Ventilation is the opposite — it’s the dry-weather job that helps keep winter damage from getting started. Heat and moisture trapped in a hot attic are a leading cause of Michigan ice dams, and ventilation is one part of controlling them — alongside sealing the air leaks that let warm house air up, and insulation that does its job. Bathroom air dumped into an attic causes stains and frost that look exactly like leaks. We fix the roof side of all of it, across Wayne, Oakland, and Macomb counties.

We fix roofs. We don’t sell roofs. Ventilation and exhaust hookups are roof work — so they’re ours.

Contact us for a free repair estimate. We’ll review the issue and explain the next step. Any additional services require your agreement before work begins. Call (586) 698-7094 — Mon–Sat, 7 AM–7 PM.

What’s included

Three roof-side offers. Published prices where they exist.

Attic ventilation

Balanced intake and exhaust: ridge vent $26 / lin ft, soffit vents $95 / vent, baffles $38 / bay, roof vent or turbine repair $425 – $650 — the published price book, as written.

Solar attic vents

A solar-powered vent fan mounted on the roof that pulls hot air out of the attic. It runs on sunlight — no wiring into the house, no electrician needed. Price agreed in writing before work begins.

Exhaust vent hookups

Bathroom and dryer vents terminated through the roof with a proper roof cap — reroute $550 – $850 as published. Kitchen exhaust vents through the roof too, priced in writing at your estimate.

Attic ventilation — one part of fixing ice dams at the cause

Ventilation works as a pair. Cool air comes in low, through the soffits, and hot air leaves high, through the ridge or roof vents — baffles keep insulation from choking that intake at the eaves. When any leg of that system is missing, attic heat melts roof snow unevenly, the meltwater refreezes at the cold eave, and you get an ice dam. That’s why our ice dam guide treats ventilation as part of the root-cause fix — together with sealing the air leaks from the house below and insulation that isn’t blocking the eaves — not an extra.

From the price book: ridge vent repair $26 / lin ft · soffit vent installation $95 / vent · baffle installation $38 / bay · roof vent or turbine repair $425 – $650. Book it in dry weather this fall and winter has one less way in.

Solar attic vents — powered by the sun, not your panel

A solar attic vent is a fan we mount on the roof that moves hot attic air out whenever the sun is up — which is exactly when the attic is hottest. Because it runs on sunlight, there’s no wiring into the house and no electrician needed: we set it, flash it into the roof, and it runs itself. It pairs with the intake side — soffit vents and baffles — so the air it pulls out is swapped out with cooler air from below. For solar attic vent installation, the price is agreed in writing before work begins.

Exhaust vents belong outside — not in your attic

Plenty of bathroom fans and dryer vents around Metro Detroit were never hooked up properly — the duct just ends in the attic, dumping warm, wet air onto cold roof decking. The result looks like a roof leak: ceiling stains, a musty mold smell, even frost inside the attic in winter. It isn’t the roof leaking; it’s the house breathing into the wrong room. We reroute the duct and terminate it through the roof with a flashed roof cap — bathroom / dryer vent reroute $550 – $850, as published. Kitchen exhaust vents go through the roof the same way; that hookup is its own line, priced in writing at your estimate before work begins.

Our boundary, in plain words: we do the roof side — the vent cap, flashing, and the duct connection through the roof. We don’t do electrical work; if the fan itself needs wiring, that’s an electrician — the roof part is ours.

From the price book

Published ventilation prices. New offers agreed in writing first.

Ridge vent $26 / lin ft · soffit vents $95 / vent · baffles $38 / bay · roof vent or turbine repair $425 – $650 · bathroom / dryer vent reroute $550 – $850 · solar attic vent installation and kitchen exhaust hookups: price agreed in writing after review, before work begins.

Every job: photo report before, during, and after — emailed the same day.

Tell us what’s happening with your roof. We’ll review the information and contact you about the next step.

Questions

Ventilation questions, straight answers.

Why is my attic so hot — and why do I get ice dams every winter?

Usually a few causes working together: warm, moist air leaking up from the house, insulation that’s thin or blocking the eaves, and attic air that can’t move — not enough intake at the soffits or not enough exhaust at the ridge. Warm attic air melts snow unevenly (that’s the ice dam), and summer heat trapped in the attic cooks shingles from underneath. Ventilation is the part we fix from the roof side — the intake and the exhaust — and we’ll tell you plainly if air leaks or insulation look like part of your problem too.

What does attic ventilation work cost?

It’s published in our price book: ridge vent repair $26 / lin ft, soffit vent installation $95 / vent, baffle installation $38 / bay, and roof vent or turbine repair $425 – $650. Solar attic vent installation is priced in writing after review, before work begins.

Do solar attic vents need an electrician?

No. A solar attic vent runs on its own solar panel — no wiring into your house and no electrician. We install the roof side: the vent itself, properly flashed into your roof. Our boundary is simple — we do roof work, not electrical work. If something inside the house needs wiring, that’s an electrician, and we’ll tell you plainly.

My bathroom vent blows into the attic. Is that a problem — and can you hook it through the roof?

Yes, it’s a problem: every shower pumps warm, moist air into your attic, where it feeds musty smells, attic frost, and ceiling stains that look exactly like roof leaks. We reroute bathroom and dryer vents and terminate them properly through the roof — published at $550 – $850. Kitchen exhaust vents through the roof are the same idea; that one is priced in writing after review, before work begins.

Can you tell what’s wrong from a photo?

No — a photo is a clue, not a diagnosis. We can’t determine the cause or guarantee a fix from a photo alone. Tell us what’s happening with your roof. We’ll review the information and contact you about the next step.

1. Do I need more vents?

Short answer: Maybe — what matters is balance, not just more vents. A roof vents as a system: cool air comes in low through the soffits and hot air leaves high through the ridge. If intake and exhaust aren't balanced, adding vents in one place alone doesn't fix it.

  • Signs the balance may be off: a very hot attic in summer, moisture or musty smells, ice dams in winter.
  • Common Michigan cause: soffit vents blocked by insulation or debris, so no cool air gets in at all.
  • A roofer checks the intake-to-exhaust balance on your roof before saying what it needs.

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

2. Do I need soffit vents?

Short answer: If your roof has ridge vents up top, it almost always needs soffit vents down low too — that's the intake half of the system.

  • Soffit vents sit under the eaves and let cool outside air in.
  • Without them, ridge vents have nothing to pull, and hot air just sits in the attic.
  • They get blocked more often than people think — insulation pushed into the eaves, debris, or paint sealing them shut.

MDRR installs soffit vents ($95 per vent, per our price list). Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

3. Power vents and solar vents — what's the difference?

Short answer: Both are fans that actively pull hot air out of the attic. A power vent runs on house electricity; a solar vent runs on its own small solar panel.

  • Passive vents (soffit + ridge) move air without power and suit most homes.
  • A powered vent moves more air, which can help a big or stubborn attic — but it only helps if the intake (soffit) side can keep up.
  • Wiring a power vent is electrician work. MDRR does the roof-side vent work; we'll tell you honestly whether your job is a roof-side job or needs an electrician too.

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

4. Do I need a kitchen vent through the roof?

Short answer: Yes — kitchen range air should vent outside through the roof, never into the attic.

  • Cooking puts moisture and grease into the air. Dumped into the attic, that moisture feeds mold and rot in the wood and insulation.
  • A proper roof cap lets it out above the roofline, where it belongs.
  • If your range hood currently vents into the attic, that's worth fixing.

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

5. Do I need a bathroom vent through the roof?

Short answer: Yes — a bathroom fan must vent outside through the roof, never into the attic.

  • A shower puts a lot of moisture into the air. Vented into the attic, it condenses on cold wood and insulation — mold, rot, and stained ceilings follow.
  • The fix is a dedicated roof vent for the fan, sealed and flashed properly at the roofline.
  • The same goes for a dryer vent: it must go outside, not into the attic.

MDRR reroutes bath and dryer vents ($550–$850, per our price list). Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

6. Why is the snow not melting on my roof?

Short answer: Usually that's a good sign — it means heat is staying inside your house instead of leaking into the attic.

  • A well-insulated, well-vented attic stays close to outside temperature, so snow sits evenly and melts slowly.
  • The trouble pattern is the opposite: snow melting in patches while ice builds up at the edges. That means warm air is escaping into the attic and refreezing at the colder eaves — the start of an ice dam.
  • Even snow cover with no ice at the edges is generally what you want to see.

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

8. Do dark shingles make my roof too hot?

Short answer: Yes, dark shingles absorb more sun and run hotter — but color alone isn't the whole story. Ventilation matters more.

  • Dark shingles soak up sunlight and radiate heat down. On a sunny Michigan summer day, an attic can reach 120 to 160 degrees or more.
  • What keeps that heat from cooking the house is airflow: cool air in through the soffits, hot air out through the ridge.
  • So a hot attic with dark shingles usually points at the vent balance first, not the color alone.

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

9. Why does my attic smell musty?

Short answer: Musty usually means moisture is getting in and staying there — poor ventilation, a small leak, or damp insulation.

  • Michigan attics trap moisture easily in winter: warm house air leaks up, hits cold wood, and condenses.
  • Check the usual suspects: bath or dryer fans venting into the attic, blocked soffits, a flashing leak letting water in.
  • The smell alone doesn't say which one it is — a roofer traces the moisture source before anything gets fixed.

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

10. What causes ice dams?

Short answer: Warm air escaping into the attic melts roof snow, and the meltwater refreezes at the colder eaves — that ridge of ice is the dam.

  • Heat loss through thin insulation or air leaks warms the roof deck unevenly: snow melts higher up, water runs down, and it freezes where the roof is cold — at the overhang.
  • The dam then backs later meltwater up under the shingles, and that's when ceilings stain.
  • Prevention is insulation, air sealing, and balanced ventilation — keeping the attic close to outside temperature.

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

11. How do I know if my ridge vent is blocked?

Short answer: You usually notice the effects first — a very hot attic, moisture, or shingles aging fast — because the vent itself is on top of the roof.

  • A ridge vent only works with open soffit intake below it. Blocked soffits make even a good ridge vent useless.
  • From the ground you can't reliably tell; a roofer checks the ridge line and the intake together.
  • Don't climb up to check it yourself — that's roof work, and it's not worth the fall risk.

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

12. Does my attic need more insulation?

Short answer: If your attic floor insulation is thin, patchy, or old, probably — but insulation alone doesn't fix ventilation problems.

  • Insulation slows heat leaving the house. That keeps rooms warmer and helps stop ice dams, since less heat reaches the roof deck.
  • But if the attic can't breathe (blocked soffits, weak exhaust), new insulation just sits in a damp, hot space.
  • The pair works together: insulation plus balanced ventilation.

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

25. Why is my attic frosty in January but an oven in July?

Short answer: Both point at the same thing — warm house air leaking up, and an attic that can't breathe.

  • In January, moist house air leaks into a cold attic and freezes on the wood and nails. That's the frost.
  • In July, the same sealed-up attic traps roof heat with nowhere for it to go. That's the oven.
  • The fix is the pair: seal the air leaks from the house side, and keep intake and exhaust ventilation balanced.

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

26. Why is water dripping into my bathroom fan in cold weather?

Short answer: Usually condensation, not a roof leak.

  • Warm, steamy shower air travels up the fan duct through a cold attic. If the duct isn't insulated, the steam turns back to water inside the duct and drips down into the fan.
  • The fix is an insulated duct run to a proper roof cap that vents outside — never into the attic, and never under a soffit, where the moist air gets pulled right back in.
  • MDRR reroutes bath vents ($550–$850, per our price list).

Tell us what's happening with your roof. We'll review the information and contact you about the next step. (586) 698-7094.

Weighing a repair against a new roof? Read our repair-versus-new-roof guide for questions to ask about the problem, the surrounding roof and the written scope.

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