1. ReferenceCost Guide

   Roof Repair Cost

   Localized fixes — leaks, flashing, boots, valleys, a section of shingles. Priced per visit rather than per square, because that is how the trade actually sells it.

2. ReferenceCost Guide

   Storm Damage Roof Repair Cost

   Wind, hail and impact damage — from a tarp on the night of the storm to a full insurance-scoped replacement. The one topic where the price you pay and the price of the work are usually different…

3. 
   VideoJoe Jenkins

   Basic Slate Roof Repair

   Joe Jenkins — from the Slate shelf of the video library.

4. 
   VideoJoe Jenkins

   Introduction to Slate Roof Repair

   Joe Jenkins — from the Slate shelf of the video library.

5. PDF
   DocumentGAF Technical ServicesInstallation & Repair

   GAF TAB-C 2015-31: Repairing Hail Damage to Granule-Surfaced Membranes

   GAF's commercial technical advisory bulletin on hail that scours granules off a granule-surfaced membrane: what to inspect for, when coating the membrane is an acceptable repair, and the Diamond…

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6. PDF
   DocumentGAF Technical ServicesInstallation & Repair

   GAF TAB-R 2017-164: Underlayment Requirements for Hips and Ridges on a Single-Plane Repair

   One-page GAF bulletin on how underlayment must be lapped over a hip when only one roof plane is being replaced, including removing end nails on the adjacent plane and re-nailing — the detail that…

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7. PDF
   DocumentMetal Panels Inc.Installation & Repair

   StrongSeam AG Panel Through-Fastener Installation Manual

   Metal Panels Inc.'s 38-page installation manual for through-fastened AG panels: design guidelines, storage and handling, panel and trim installation sequence, accessories and load tables, with the UL…

   Read / Download →
8. EncyclopediaInstallation

   How to Install a Standing Seam Metal Roof

   Panel layout from the ridge back, floating vs fixed clips, why thermal movement decides your fastening scheme, eave and rake terminations, seaming, and where panel overlap rules actually apply.

9. EncyclopediaVentilation & Code

   Minimum Roof Pitch for Shingles

   The 2:12 floor and the 4:12 line, what low-slope underlayment application actually requires, and the real options below the threshold — rolled roofing, single-ply, metal, or reframing the roof.

10. EncyclopediaMaterials & Products

    Underlayment for a Metal Roof

    Why felt is the wrong answer under a metal panel, what high-temperature self-adhered membrane actually buys you, condensation and the vented vs unvented decision, and how underlayment choice changes…

11. ReferenceIndustry Directory

    Asphalt Roofing Manufacturers Association (ARMA)

    A manufacturers’ trade association that gathers and distributes technical information on asphalt roofing materials to building officials, code authorities and regulatory bodies. Its members are North…

12. ReferenceIndustry Directory

    Atlas Roofing Corporation

    Atlas Roofing Corporation was founded in 1982 and manufactures asphalt shingles, underlayments and polyiso roof and wall insulation. It is headquartered in Atlanta, Georgia and operates four…

13. ReferenceIndustry Directory

    Brava Roof Tile

    Founded in 2008 in Washington, Iowa, Brava manufactures compression-molded composite roofing tiles in shake, slate and Spanish barrel profiles using recycled materials and a mineral-infusion coloring…

14. ReferenceIndustry Directory

    Canadian Roofing Contractors Association (CRCA)

    A national association founded in 1960 that provides guidance on the practical, regulatory, technical and business needs of Canada’s roofing contractors. Members include roofing contractors,…

15. ReferenceIndustry Directory

    Carolinas Roofing and Sheet Metal Contractors Association, Inc. (CRSMCA)

    A regional trade association serving roofing and sheet metal contractors across North and South Carolina through education, safety programs and industry events. It runs an installer certification…

16. ReferenceIndustry Directory

    Chicago Roofing Contractors Association (CRCA)

    A trade association describing itself as "the leading trade association of roofing and waterproofing contractors in Illinois." Membership spans contractors, manufacturers, distributors,…

17. ReferenceIndustry Directory

    Colorado Roofing Association (CRA)

    A statewide trade association founded in 1978 whose stated aim is to "Promote the ethics, education, and image of the roofing industry throughout the State of Colorado." It serves licensed member…

18. ReferenceIndustry Directory

    Cool Roof Rating Council (CRRC)

    A 501(c)(3) non-profit that "develops fair, accurate, and credible methods for evaluating and labeling the radiative properties of roofing and exterior wall products." It serves manufacturers,…

19. ReferenceIndustry Directory

    Eagle Roofing Products

    Eagle Roofing Products manufactures concrete roof tile in flat, low, medium and high barrel profiles from Rialto, California.

20. ReferenceCost Guide

    Flat Roof Replacement Cost

    Single-ply membrane — TPO, EPDM and PVC — plus modified bitumen. Covers whole low-slope roofs and the flat sections over additions, porches and dormers.