Installation Instructions

Roof Armor stands out as one of the most secure, robust, and high-performing roof underlayment options available today. It strikes a perfect balance between strength and weight, offering excellent traction on steep slopes without the risk of buckling, warping, or cracking. Roof Armor is suitable for both commercial and residential roofing projects when used with roofing nails (featuring a 3/8-inch head). It serves as an exceptional underlayment for a wide range of sloped roofing materials, including asphalt, shingles, metal, tile, and slate. With its dual skid-resistant surfaces, unparalleled strength, and exceptional durability, Roof Armor is the top choice for steep slope roofing applications.

Position the Roof Armor underlayment with the printed side facing upward during installation. Ensure a four-inch overlap for horizontal seams and a six-inch overlap for vertical seams. Concentrate the fasteners within the horizontal seams for secure attachment.

The Roof Armor underlayment should extend over the drip cap at the lower (eave) edge of the roof. If the framers install Roof Armor before the roofers arrive, they should position the fasteners a minimum of three inches above the roof's bottom edge, allowing the roofers to smoothly tuck the drip cap beneath it.The Roof Armor underlayment surface has clear markings indicating the proper placement for fasteners. When applying under normal conditions, insert a nail at each marked 'O' and disregard the marked 'X'.

  1. When securing the Roof Armor underlayment, focus the fasteners primarily within the horizontal overlaps. If using standard roofing nails or cap nails with large heads, space the fasteners at 12-inch intervals along the seams and stagger them at 24-inch intervals across two rows within the central portion of the underlayment.

  2. For most Roof Armor applications, we recommend using standard roofing nails featuring a 3/8" head as they offer superior protection against water infiltration. In cases where building codes necessitate it or when exceptionally strong winds are anticipated, one-inch cap nails can be employed, although they are generally not needed.

  3. Roof Armor underlayments can remain uncovered for a period of six months with the use of standard roofing nails or cap nails.

  4. When dealing with extended durations or steep slopes, consider doubling the number of nails used by positioning fasteners in both the 'O' and 'X' marks printed on the Roof Armor underlayment.

  5. Staples are suitable for use only if the Roof Armor Underlayment will be shingled on the same day or well before any potential rainfall. Several staple varieties may permit water infiltration around their shanks. If you have used staples to secure the Roof Armor, anticipate some water seepage beyond the staples, potentially reaching the building's interior. Concentrate the majority of the staples along the horizontal seams, where there will be a double layer of Roof Armor underlayment, and use only a few staples in the open field areas.