The Roofing Marketplace

Multilayered Roof System

IKO has developed a superior multilayered roof system incorporating its industry-leading products. Along with IKO's shingles, the Pro 4 System includes at least three of these accessory products: asphalt-saturated felt; RoofGard-SB or RoofGard-Cool Grey Underlayments; GoldShield, ArmourGard or StormShield Ice & Water Protectors for Eave Protection; Marathon Ultra AR, Hip & Ridge, Hip & Ridge 12 Cap Shingles or Ultra HP Ridge Cap Shingles; and Leading Edge Plus Starter Strips. For more information, visit

NRCA's Premier Technical Publication

The NRCA Roofing Manual is made up of four volumes containing information regarding design, materials and installation techniques applicable to various roof system types. This valuable technical set includes The NRCA Roofing Manual: Architectural Metal Flashing, Condensation Control and Reroofing—2010, The NRCA Roofing Manual: Steep-slope Roof Systems—2009, The NRCA Roofing Manual: Metal Panel and SPF Roof Systems—2008 and The NRCA Roofing Manual: Membrane Roof Systems—2007. For more information, contact NRCA's Customer Service Department at (866) ASK-NRCA (275-6722) or visit