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ArmorLay 25 Synthetic Roof Underlayment 4' x 250'

5.0 (8) Write Review
Free shipping on orders over $29.99

$69.99

$ 29 .99 $29.99

In Stock

About this item

  • 10 square roll covers 1,000 square feet
  • Meets performance characteristics ASTM D4869 and ASTM D226 Standards
  • 60 Day exposure to UV
  • Slip resistant polymer applied to the bottom surface. Unique textured fabric allows for steep slope walk-ability
  • Won’t buckle, warp, or crack , Water resistant



Todd
Reviewed in the United States on March 11, 2025
Great product.
RDyer
Reviewed in the United States on February 27, 2025
Synthetic Roof Underlayment is the only way to put on underlayment, I'm old enough to have used tar paper for years and you could never get it wet and it would stay flat. There is no going back to tar paper.
nj28sharp
Reviewed in the United States on September 6, 2024
We recently installed ArmorLay 25 Synthetic Roof Underlayment on our new roof, and we're extremely satisfied with its performance. The underlayment is strong, durable, and highly resistant to moisture. When a severe storm hit our area shortly after installation, The ArmorLay 25 kept the water out, preventing any leaks or damage to our home. We highly recommend this product to anyone looking for a reliable and effective roof underlayment.
Dave Throop
Reviewed in the United States on September 30, 2024
Used for shed roof
Matthew Kirchhoff
Reviewed in the United States on August 18, 2024
This does not have an adhesive backing like some roof underlayment products have, but it is SO much easier to apply, and you get far more ( both width and length) for your dollar. May not hold up if left exposed for months, but as an underlayment product for metal and asphalt roofing I’d have no concerns. Good product.
Green Friends
Reviewed in the United States on June 2, 2024
Performed well and easy installation.
P. Ortega
Reviewed in the United States on November 7, 2024
Easy to lay down with staples or capped nails; waterproof once down and overlapped properly, super lightweight, great coverage per roll, and easy to cut.
Kirk D Fowler
Reviewed in the United States on October 23, 2019
Cool Gray color. Great product. Very durable. Made it through winter snow and spring rain on a low slope roof, double layers with heavy overlap without anything covering it. This year I went new layers over the old and painted elastometic over the top. Will do metal roof over that. Holds up to intense UV exposure for more than 90 days.Fastened with plastic head roof nails.Will not rip in high winds.Lays flat.Great for new construction or temporary waterproofing.Great valueBest roofing underlayment coverage for the cost.