Thinking of Replacing a Cedar Shake Roof Around Madison? Read This First
Cedar shake roofs were once common on Morris County homes, and many are now reaching the end. Converting to a modern asphalt roof is a real project, and here is what it involves.
Why so many local cedar shake roofs are failing now
Cedar shake was a popular roofing choice on a generation of Morris County homes, prized for its look and its natural durability. The trouble is that even the best cedar has a finite life, and a great many of those roofs went on decades ago. The shakes we now see on homes around Madison are frequently split, cupped, thinned, and growing moss in the shaded spots, all signs that the material has done its job and is ready to be retired.
Cedar is also unusually unforgiving of our local conditions. The shade from Madison's heavy tree cover keeps it damp, which accelerates rot and moss, and the freeze-thaw cycle works on every split and cup until the roof can no longer reliably shed water. Owners often try to nurse these roofs along with spot repairs, but at a certain point that becomes spending good money to delay the inevitable.
What converting to asphalt actually involves
Converting a cedar shake roof to asphalt is more involved than a shingle-to-shingle replacement, and an honest roofer will tell an owner that up front. The old shakes have to come off completely, and many cedar roofs were installed over spaced sheathing, sometimes called skip sheathing, rather than the solid deck that modern asphalt shingles require. That means installing a proper solid deck before the new roof can go on.
Once there is a sound, continuous deck, the roof goes back together as a complete modern system: full underlayment, waterproof membrane at the vulnerable edges and valleys, properly fastened asphalt shingles rated for our wind exposure, and corrected ventilation. The extra deck work is exactly why a cedar conversion should never be quoted sight unseen, and why any bid that ignores the sheathing question should be treated with suspicion.
Weighing the conversion against the alternatives
Not every owner has to convert to asphalt; new cedar and synthetic shake products exist, and they preserve the original look at a higher cost. For owners who love the appearance and want to keep it, those are worth discussing. For owners who simply want a durable, lower-maintenance roof that handles Madison's tree cover and weather without the upkeep cedar demands, modern asphalt is usually the practical answer.
The decision really comes down to budget, how long the owner plans to stay, and how much they value the cedar look against the maintenance it requires. There is no single right answer, and a roofer who pushes one option without laying out the trade-offs honestly is not giving the owner what they need.
The warning signs your cedar roof is genuinely done
Owners often wait too long with a cedar roof because the decline is so gradual that it is easy to live alongside until a real leak forces the issue. There are clearer signals worth watching for. When shakes are visibly split, cupped, or curling across whole sections rather than in isolated spots, when you can see daylight or staining from inside the attic, when moss has taken firm hold on the shaded slopes, and when individual shakes have thinned to the point of looking translucent at the edges, the roof is telling you it has spent its life. One or two of those signs might mean a targeted repair still makes sense; several together usually mean the field has failed.
Repeated leaks in different spots, rather than one stubborn recurring one, are an especially clear signal. A single leak points to a single failed detail; leaks appearing in new places point to a surface that has worn out broadly. At that stage, continuing to chase individual leaks across a cedar roof becomes the expensive way to delay a replacement that is coming regardless.
The catch is that some of the most important evidence is under the shakes, in the condition of the sheathing, where a homeowner cannot see it. That is precisely why an honest inspection that actually looks at the deck is worth so much more than a guess from the street on a cedar roof.
Getting an honest assessment before you commit
Because a cedar conversion can vary so much depending on what is under the shakes, the only way to get a real number is to have the roof inspected by someone who will actually look at the sheathing and tell the owner the truth about it. A bid offered sight unseen, or one that does not mention what kind of deck is underneath, is not a number an owner can rely on. A documented inspection that includes the deck condition turns a vague, scary unknown into a concrete plan with a real price.
We are glad to give an owner of an aging cedar roof that honest read, including whether they have a little more time or whether the roof has genuinely reached the end of its service, and exactly what the conversion to a modern asphalt system would involve for their particular house. There is no obligation attached, and the report and photographs are the owner's to keep regardless of what they decide.
What to expect from the project once you decide
Owners who have only ever lived with a cedar roof are sometimes surprised by how different the experience of a modern asphalt system is once the conversion is done. The maintenance burden drops considerably, because asphalt does not demand the periodic treatment, the moss management, and the individual shake replacement that cedar quietly requires to reach its full life. For an owner who chose to convert largely to be free of that upkeep, the change is a relief they feel every season.
The project itself, done properly, follows a clear sequence: the old shakes come off completely, the deck is brought up to a sound continuous surface where the original skip sheathing requires it, and the new system goes on with full underlayment, reinforced waterproofing at the vulnerable edges and valleys, properly fastened shingles, and corrected ventilation. The deck work is the part that varies most from house to house, which is why we insist on actually looking at it before quoting rather than handing an owner a number that might not survive contact with what is really under the shakes. When the work is finished, the homeowner gets the warranty in writing and a final walkthrough, and a roof that asks far less of them going forward.
If a cedar shake roof on a Madison-area home is showing its age, a free documented inspection will tell you exactly where it stands and what a conversion would really involve.
A quick call to 443-440-5722 starts the free inspection, no obligation.