The Nationwide Roofing Contractors Affiliation (NRCA) launched The NRCA Roofing Guide: Steep-slope Roof Methods—2025, with details about the design, supplies, and set up strategies relevant to steep-slope roof system purposes. The brand new quantity updates the 2021 quantity with the identical title and is a reference for contractors, architects, and roof consultants.
Notable adjustments embody:
- Revised minimal wooden panel roof deck sheathing thickness suggestions and OSB panel use in steep-slope roof deck suggestions
- New suggestions concerning decks made from supplies aside from wooden and nailing substrate supplies in steep-slope purposes
- Revised suggestions for high-wind area steep-slope purposes
- New and revised development particulars
- Revised appendixes addressing steep-slope roof system compliance with Worldwide Constructing Code (IBC) 2024 and Worldwide Residential Code (IRC) 2024 provisions
- New appendixes addressing roofing slate repairs and Insurance coverage Institute for Enterprise & House Security’s
(IBHS) FORTIFIED Roof program
The guide includes 5 roof-covering type-specific sections and an appendixes part, together with steel shingle roof programs. Every part is a self-contained reference guide and could also be utilized by designers growing steep-slope roof system designs for particular tasks.
The NRCA Roofing Guide: Steep-slope Roof Methods—2025 is used with different volumes of The NRCA Roofing Guide: The NRCA Roofing Guide: Metallic Panel and SPF Roof Methods—2024; The NRCA Roofing Guide: Membrane Roof Methods—2023; and The NRCA Roofing Guide: Architectural Metallic Flashing and Condensation and Air Leakage Management—2022.
As well as, The NRCA Development Particulars: CAD Recordsdata—2025 has been up to date to mirror development particulars discovered within the 2025 guide boxed set, and The NRCA Roofing & Waterproofing Guide Anthology has been up to date to incorporate The NRCA Roofing Guide: Metallic Panel and SPF Roof Methods—2021.
NRCA members can obtain the guide, and nonmembers could buy the guide at nrca.internet/manuals.
