Roofing Requirements by Manufacturer

Roof Shingle Manufacturer Requirements are the official installation standards published by major shingle brands like GAF, Owens Corning, and IKO. They define exactly how materials must be installed to meet warranty and performance standards. Following these requirements ensures your work complies with both the manufacturer’s specifications and the expectations of carriers reviewing your estimate.

Manufacturer requirements are your roadmap to building correctly, every time. When local roofing codes don’t cover a detail—like fastening patterns or drip edge placement—the manufacturer’s installation guide becomes the standard. Meeting these specifications helps you avoid denied claims, warranty voids, and expensive rework. It’s the most foolproof way to stay compliant and confident on every roof estimate you submit for review.

With OneClick Code, you can generate a Manufacturer Requirements Report that instantly identifies the correct installation rules for your project’s address and shingle brand. Include that report in your estimate or claim file to show the insurance carrier that your line items and estimate follow both local code and manufacturer standards. This documentation significantly speeds up approvals and reduces back-and-forth with adjusters.

If the AHJ, or Authority Having Jurisdiction,  hasn’t adopted local roofing codes for the project’s property address, the next best thing insurance carriers reference for roofing claims are the Shingle Manufacturer Installation specifications.  OneClick Code’s Manufacturer Requirements Report automatically pulls the official installation instructions from your chosen shingle brand and SKU (or item number). These manufacturer specifications act as your governing standard for how the roof must be installed. By basing your roofing estimate on verified manufacturer data, you will create a defensible, compliant scope for review by an insurance adjuster or carrier.

You can find installation guides for top brands directly through OneClick Code’s Manufacturer Requirements Report. The platform includes verified installation requirements for GAF Timberline, Owens Corning Oakridge, IKO, TAMKO, Atlas Roofing, CertainTeed, Malarkey, and BP shingles. Each report provides links to the manufacturer’s official documentation based on your exact shingle type—no more digging through PDFs or guessing what’s current.

Yes. Following the exact installation standards from the manufacturer ensures your work qualifies for full warranty protection. When you attach the OneClick Code Manufacturer Requirements Report to your job file, you’re proving that every line item in your estimate meets the brand’s warranty criteria. That means fewer disputes, fewer callbacks, and a stronger reputation for doing the job right the first time. This is critical for homeowner satisfaction.

All data in the Manufacturer Requirements Report comes directly from each shingle brand’s official installation documentation, which is reviewed and updated regularly. Our system verifies the most recent specifications, so you can trust that what you’re estimating and building aligns with the latest manufacturer standards.