Cedar Shake Roofing for Chicagoland Estate Homes

A properly installed and ventilated cedar shake roof in Chicagoland delivers 25 to 30 years of service life — sometimes longer when site conditions are favorable and routine maintenance happens. The single largest variable is attic ventilation. Cedar shake breathes from underneath; it depends on continuous airflow through soffits and ridge to dry out between weather events. Without that airflow, the underside stays damp, the wood deteriorates from the bottom up, and you can lose 5 to 10 years off the expected life. The second variable is tree cover. Heavy shade from mature canopy keeps cedar damp longer after rain and accelerates moss and lichen growth, both of which shorten service life. We assess ventilation and tree exposure as part of every cedar shake proposal.

Hand-split shakes have a rougher, more textured surface — split with a froe along the wood grain, which leaves the natural fiber pattern intact. They produce a more rustic, traditional look common on older estate homes and Tudor architecture. Tapersawn shakes are sawn on both the top and bottom face, producing a more uniform thickness and a flatter, cleaner appearance. Both are appropriate for Chicagoland; the choice is mostly aesthetic and is often dictated by the architectural style of the home or by Historic Preservation Commission requirements in landmark districts. We work with both. For homes in the Lake Forest historic district or in Kenilworth's Tudor and Colonial Revival inventory, the architectural review process often specifies hand-split.

Most of the cedar shake we install is Class A or Class B fire-treated — pressure-treated with fire retardant during manufacturing, then graded to UL 790 or ASTM E108 fire ratings. Class A is the highest residential fire rating available; it's required by some municipalities and is increasingly specified even where not required as a precaution against ember-driven ignition during area fires. The treatment doesn't change the appearance materially. Premium cedar shake brands like Watkins, Waldun, and Anbrook offer fire-treated lines that meet these classifications. We confirm the fire rating in writing on every cedar shake project so you have documentation for insurance purposes and for any future architectural review.

Yes. Several communities in our service area have either a Historic Preservation Commission with jurisdiction over visible exterior changes (Lake Forest, parts of Kenilworth, Highland Park's Sherwood Forest) or HOA architectural review committees with similar authority (Winnetka, Glencoe). For cedar shake replacement projects in those jurisdictions, we prepare the application package — material specifications, manufacturer cut-sheets, sample shake submittals, photographs of the existing roof, and any documentation the commission requires. We've worked through the process many times. For estate homeowners, this is one of the parts of the project that's surprisingly time-consuming if you're navigating it without a contractor who's been through it before; we do most of it for you.

Cedar shake makes sense when the home's architecture or the neighborhood's character calls for it specifically — Tudor revivals, English country, certain Colonial Revivals, and historic homes where the original specification was cedar. The aesthetic and the tactile character of real cedar can't be perfectly replicated by any synthetic. Cedar shake also makes sense when the homeowner is investing for a multi-decade ownership horizon and values the periodic maintenance rhythm of a natural material. Synthetic alternatives — DaVinci Roofscapes synthetic slate or shake, GAF Camelot II designer asphalt, CertainTeed Grand Manor — are appropriate when the look is acceptable but the maintenance profile of natural cedar is undesirable, when the budget doesn't justify cedar's premium, or when the local fire code restricts cedar without a Class A fire treatment. We install all three categories. The right call depends on the home, the homeowner's preferences, and the long-term ownership plan.

We price cedar shake per project rather than off a rate card. What moves the number: roof size and complexity, shake grade (premium hand-split runs significantly higher than utility-grade tapersawn), whether Class A fire treatment is required, substrate condition once the old roof is off, and the extent of any flashing or copperwork. Historic-district specification requirements add to it. We provide written estimates with the specific shake brand, grade, fire treatment, ply, exposure, ventilation provisions, and flashing scope spelled out — line item by line item — before any work begins. Cedar shake is a specification project; the proposal should reflect that.