- EncyclopediaInstallation
How to Install Drip Edge (and Where Gutter Apron Beats It)
Eave-first or underlayment-first, the difference between a D-style drip edge and a gutter apron, hem orientation, lap direction, fastener spacing, and the rake detail that lets wind pull the whole…
VideoThis Old HouseHow to Install Drip Edge and Step Flashing | This Old House
This Old House — from the Flashing & valleys shelf of the video library.
VideoIKO North AmericaHow to install Drip Edges, Eave Protection & Underlayment - Blueprint for Roofing
IKO North America — from the Tear-off & decking shelf of the video library.
- DocumentUnattributed trade compilation (cites NC OSFM code, APA, ASTM and Xactware sources)Business & Estimating
North Carolina Roofing Estimate Justification Manual
An unattributed 29-item justification sheet pairing common roofing supplement line items — decking, valley protection, ice and water barrier, OSHA-driven labor, overhead and profit — with a citation…
Read / Download → - ReferenceIndustry Directory
Union Corrugating Company
Union Corrugating has manufactured metal roofing and wall panels since 1946, serving residential, commercial and agricultural markets. It was acquired by Cornerstone Building Brands in December 2021.
- ContractorRogers, ARPhillips RoofingInterior · Skylight Repair/Replacement · We replace rolled roofing
- ContractorPhillips Roofing & RepairInterior · Skylight Repair/Replacement · We replace rolled roofing
- EncyclopediaInsurance & Claims
What Is a FORTIFIED Roof?
The IBHS standard explained: the sealed deck and locked-down edge that do most of the work, the independent evaluator verification that is the real product, the 2025 certified-installer rule, and how…
- ReferenceIndustry Directory
ATAS International, Inc.
ATAS International is a family-owned manufacturer of metal panels for the building envelope, founded in 1963 as Aluminum Trim And Shapes and relocated to Allentown, Pennsylvania in 1985. Product…
- ReferenceIndustry Directory
Drexel Metals
Founded in 1985, Drexel Metals supplies architectural standing seam metal roof and wall systems, painted coil and sheet, and roll-forming equipment. It is part of Carlisle Construction Materials.
- ReferenceIndustry Directory
Duro-Last
Duro-Last custom-fabricates PVC single-ply roofing membranes and accessories for commercial low-slope roofs, from Saginaw, Michigan. It was acquired by Holcim in 2023 and is now part of Amrize.
- ReferenceIndustry Directory
Mule-Hide Products Co., Inc.
Mule-Hide Products markets low-slope roofing systems and accessories to contractors, founded in Chicago in 1906. It is part of ABC Supply.
- ReferenceIndustry Directory
Petersen / PAC-CLAD
Petersen manufactures architectural metal roof and wall panels, flat sheet and coil, and perimeter edge systems under the PAC-CLAD brand. Its primary facility is in Elk Grove Village, Illinois.
- ReferenceIndustry Directory
Tremco Roofing & Building Maintenance
Tremco Roofing & Building Maintenance supplies commercial roofing and building envelope systems plus restoration and general contracting services, from Beachwood, Ohio. It is an RPM International…
- EncyclopediaDiagnosis & Repair
Kickout Flashing: The Detail That Causes the Most Callbacks
Where the roof edge dies into a sidewall, why the last piece of step flashing has to be a diverter, sizing and angle, sequencing with the water-resistive barrier, and how to retrofit one without…
- ReferenceStorm Center
Illinois Storm Center
Peak season April–July. Illinois sits at the eastern edge of the plains severe-weather corridor and takes both discrete supercells and the long-lived, fast-moving straight-line windstorms known as…




