Wood vs Composite Shakes

A wood-shake proposal should identify what is being delivered, including grade and any treatment. The Cedar Shake & Shingle Bureau distinguishes preservative-treated products from fire-retardant-treated products; one treatment label should not be read as evidence of the other function. Its guidance also explains that a Class A wood roof can depend on a component assembly. Ask for the actual documents rather than a verbal claim that the wood is treated.

Composite is also a broad label. A molded lookalike needs its own installation instructions and product evidence. The National Park Service’s discussion of plastic and rubber roofing illustrates why synthetic appearance does not settle composition or prove longevity. Identify the current product generation and avoid transferring the performance history of a different formulation to the material on your quote.

Sources: Pressure Impregnated Treated Products; Recycled Plastic and Rubber Roofing Shingles.

Request a sample panel large enough to show multiple courses, widths, and repeated shapes. View it in outdoor light beside the house, then ask to see an older local roof in the same product. For cedar, discuss the intended weathered appearance; for composite, discuss color and surface changes using the manufacturer’s documents. A single hand sample or edited rendering cannot show the whole-roof pattern.

Decide which visual features are essential. Some owners value authentic material above uniformity; others prefer a more controlled appearance. Record the chosen color blend, course pattern, exposure, and ridge details. If a homeowners’ association or preservation approval applies, obtain a decision on that exact choice before ordering. Approval of the word shake may leave the actual substitute unresolved.

Consider a house designed around a cedar roof, with experienced cedar trades nearby and an owner willing to arrange routine care. Wood may fit the project well if its specified assembly satisfies the site’s requirements. Now change the owner to someone who mainly wants the textured appearance and has a suitable composite product with reliable local support. Composite becomes a reasonable candidate without needing a promise of zero maintenance.

Change either example to a site where the proposed assembly is not accepted and eliminate that option. A sales comparison cannot override project requirements. Likewise, if no contractor will handle small repairs on the chosen product, treat that as a purchasing problem. Ask for a service contact and a plan for matching individual units before the full installation contract is signed.

Price the same tear-off, deck evaluation, underlayment, flashings, access, disposal, and repairs. Where assembly requirements differ, list those changes rather than hiding them inside the covering price. A cheaper material may not produce a cheaper complete job, and a higher total may include work that the competing bid excludes. Ask each bidder to reconcile the scope before comparing the final totals.

Request a written maintenance plan specific to the product and location: what is observed, what is kept clear, which cleaning or treatment methods are acceptable, and who performs repairs. Avoid accepting maintenance-free as a complete description of an assembly with valleys, flashings, and penetrations. Keep maintenance instructions with the warranty so a future service visit does not inadvertently use an incompatible product.

Finish by checking warranty remedies instead of headline duration. Identify coverage for material defects, appearance changes, labor, access, and incidental damage, plus any registration or transfer conditions. Use your actual ownership priorities to decide whether the premium buys an appearance, a particular documented feature, or simpler service. A clear reason for the purchase is more useful than an unsupported claim that one category wins.