Rot and water damage revealed under old cedar siding on a Rochester MN home

Cedar Siding Problems in Rochester's southWest
Is your home past the point of no return?

Rot and Mold—The Hidden Damage Beneath Cedar Siding

While working on a cedar-sided home in southwest Rochester—right between Baihly Meadows and Fox Croft—we uncovered something we’ve seen far too often: serious rot and decay hiding beneath the surface. From the outside, the siding looked fine. But underneath, moisture had compromised even the structural components of the home.

That’s not just cosmetic—it’s a safety concern.

Even worse, the mold had reached the insulation, creating a hidden breeding ground for poor air quality inside the home. It’s shocking, but not surprising. Many homes in neighborhoods like Fox Croft, Baihly Meadows, and along Paxton Street were built with cedar siding 20–30 years ago. Without regular upkeep, that beautiful natural wood turns into a sponge for moisture—setting the stage for rot, mildew, and costly repairs.

Window mold on cedar
Visiable mold on the surface of your cedar siding likely means rot underneath.

Common Causes of Cedar Siding Failure

Cedar is beautiful and natural, but it needs consistent care. Here are the top causes of rot and decay we find in Rochester’s southwest neighborhoods:

  1. Poor Flashing or Installation
    Flashing around windows, doors, and rooflines directs water away from vulnerable areas. When it’s missing, deteriorated, or improperly installed, water seeps behind the siding and starts a slow rot cycle
  2. Cracked or Missing Caulking
    Caulking seals joints and seams. When it cracks or shrinks, moisture finds its way in—and once cedar absorbs water, decay spreads fast.
  3. Unsealed Nail Heads
    Every nail hole is a potential leak. If nail heads are left unsealed, water can work its way deep into the wood fibers, causing unseen damage
  4. Neglected Maintenance
    Cedar siding needs resealing every 3–5 years with a high-quality oil- or water-based sealer. If it’s been longer than that, the wood is likely exposed. Rochester’s freeze-thaw cycles only accelerate the damage.
  5. Gutter or Drainage Issues
    Missing or clogged gutters cause rainwater to run directly down your siding, which invites mold both outside and inside. If you see mold on your cedar siding, there’s almost certainly more hiding underneath

Why Cedar Siding Fails on Older Homes

Even with great care, cedar siding typically lasts 20–30 years—and many homes in southwest Rochester are right at that age.
Between winter snow, spring rains, and humid summers, Minnesota weather puts cedar through extremes. Once moisture seeps in, it spreads quickly through the boards and into the framing behind them.

What Homeowners in Fox Croft and Baihly Meadows Can Do

If your home has cedar siding, regular inspection is your best defense. Look for:

  • Soft or spongy spots
  • Warping or discoloration
  • Mold streaks near trim or windows
  • Cracked or peeling caulk
  • Rusted or missing nails

If you notice any of these, don’t wait. A quick, professional inspection can catch small issues before they become structural damage.

When Its Time to Replace Cedar Siding

If your cedar siding is showing widespread rot—or maintenance costs keep stacking up—it may be time to replace it with a low-maintenance alternative.

At All Craft Exteriors, we install James Hardie® fiber cement and LP® SmartSide® engineered wood siding—two materials that replicate the look of cedar but resist rot, mold, and weather damage.

Both options are designed for Minnesota’s climate and come in styles and finishes that look just as warm and natural as real wood—without the maintenance headaches.

Woodpecker hole in rotten cedar siding on a Rochester MN home

Final Thoughts

Cedar siding gives homes in Fox Croft, Baihly Meadows, and Paxton Road timeless curb appeal—but only if it’s maintained. The hidden rot we’ve uncovered behind older cedar siding serves as a powerful reminder: what you can’t see can cost you.

If you’re unsure about your siding’s condition, schedule a siding inspection with All Craft Exteriors. We’ll assess the damage, explain your options, and help you protect your home before it’s too late.

FAQ:  Cedar Siding

Q: How long does cedar siding last in Rochester, MN?
A: Most cedar siding lasts 20–30 years with proper maintenance. Without regular sealing, it can deteriorate much sooner in Minnesota’s climate.

Q: Can cedar siding rot be repaired instead of replaced?
A: Minor areas of rot can sometimes be repaired, but if moisture has reached structural components or insulation, full siding replacement is usually more cost-effective.

Q: What are the best alternatives to cedar siding?
A: Fiber cement siding (like James Hardie®) and engineered wood (like LP® SmartSide®) offer the same classic look with far less upkeep and much better weather resistance.

Schedule Your Cedar Siding Inspection in Southwest Rochester, MN

Call 507-424-3323 or visit AllCraftExteriors.com to schedule your inspection today.
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