Our high-performance trims, flashing, fasteners, and underlayment products are engineered and curated to ensure your project stands the test of time. Our comprehensive selection of solutions is designed to meet the rigorous demands of modern architecture while delivering lasting results.
Flashings and Accessories
Manufactured Trim and Flashing
AEP Span manufactures a comprehensive range of quality trim and flashing accessories to meet the demanding needs of any architectural, commercial, or industrial metal roofing and siding project. This includes custom manufacturing capabilities. Trim and flashing accessories are available in a range of colors, paint systems, substrates, and gauges to match AEP Span’s broad metal roofing and siding product family.
AEP Span also offers expert installation guidance on trim and flashing details in our installation guides, found in the Document Library.
Common manufactured trim and accessories include:
- Inside and outside corner flashing
- C-metal trims and flashing
- Eave and gable details
- Hip, peak, and valley trim
- Transition trim pieces including end wall and sidewall flashing
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Roofing Accessories
AEP Span carries common roofing and siding accessories to help simplify the ordering and installation process for customers. This includes fasteners, foam closures, sealants, mastic, pipe flashing, polycarbonate lighting panels, touch-up paint, and more. We also offer snow retention solutions from S-5! to help protect roofs and manage snow loads. Inquire with your customer service representative at the time of order entry to identify suitable accessories for your next project.
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AEP Span Underlayment HT
AEP Span offers a high-performance underlayment solution that provides long-term barrier protection against water seepage.
AEP Span Underlayment HT is a high-tensile strength, SBS-modified rubberized asphalt underlayment designed to withstand temperatures up to 250°F (121°C). Ideal for use under steel and aluminum metal roofing, this heavy-duty membrane provides superior protection from water penetration caused by wind-driven rain and ice dams.
AEP Span Underlayment HT offers several benefits to installers, including an easy peel-and-stick application and a skid-resistant surface. Underlayment HT offers a 180-day UV exposure rating, enabling interim structure weatherproofing before metal roofing installation.
AEP Span Underlayment HT is offered for all roofing products and required for all Full System Limited Weathertightness Warranties.
Key features and Benefits:
- 1/4:12 minimum slope recommendation
- Protects the roof structure from water seepage caused by ice dams and wind-driven rain
- Withstands temperatures up to 250°F without degradation of the adhesive
- Seals around roofing nails, staples and screws.
- Split-release film provides easier, faster installation
- Resists cracking, drying and rotting; providing long-term waterproofing performance and low lifecycle cost
- Concealed waterproofing system will not detract from the architectural aesthetics of the primary roofing system
- Exposed rubberized asphalt bead along the membrane edge ensures watertightness of lap seams
- 180-day UV exposure resistance from time of installation
- Non-abrasive surface will not scratch or mar backside of panels through thermal movement
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