MetShield HT High-Temp Underlayment
Drexel MetShield® High-Temp / Carlisle WIP 300HT is a self-adhering ice & water underlayment engineered for high-temperature metal roof systems. The 40-mil SBS modified bitumen membrane carries a UV-resistant, anti-slip woven polyethylene top facer and resists temperatures up to 250°F without adhesive degradation. It self-seals around roofing nails, screws, staples and clips, protecting the roof structure from water seepage caused by ice dams and wind-driven rain. Required under all Drexel Metals warranted roof systems. Made in USA.
Specifications
- Membrane: 40-mil SBS modified bitumen (rubberized asphalt)
- Surface: Black/white engineered polyolefin composite film with factory-applied anti-skid coating
- Roll Size: 36" W × 66 ft (198 sq ft per roll)
- Roll Weight: 55 lbs
- Temperature Rating: Up to 250°F
- Low-Temperature Flexibility: -45°F (ASTM D1970)
- Adhesion to Plywood (75°F): 35 lbs/ft
- Lap Seam Adhesion (75°F): 21 lbs/ft
- Tensile Strength: 250 psi (MD) / 1390 psi (TD) (ASTM D412)
- Elongation at Break: 250% (MD) / 170% (TD)
- Moisture Vapor Permeance: 0.02 perms
- Water Absorption: 0.5%
- Max UV Exposure: 180 days
- Standards: UL Classified, ICC-ES ESR #2206, 2009 & 2012 IBC, Florida Building Code Approved, meets ASTM D1970
Applications
High-temperature underlayment for Steel, Aluminum, Copper, Zinc, CRCQ and A606 metal roof installations. It bonds directly to the roof deck for fast installation without additional adhesives, with an exposed rubberized asphalt bead along the edge for watertight lap seams.
Installation
- Install when air, deck and membrane temperatures are at or above 40°F
- Compatible with Zinc — confirm proper project design, backer and ventilation with the Zinc manufacturer
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Frequently asked questions
What is the return policy?
Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
Oil canning is not a cause for rejection.
Are any purchases final sale?
We are unable to accept returns on certain items. These will be carefully marked before purchase.
How long does it take to fabricate snap lock standing seam roof panels?
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Where are your standing seam metal roof panels manufactured?
Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.
How much does it cost to ship metal roof panels nationwide?
Shipping is calculated based on your location and the items in your order. You will always know the shipping price before you purchase.