Synthetic underlayment that will totally rock the way you roll.

IKO Stormtite® synthetic underlayment is engineered to be used under asphalt shingles. And it has qualified as an IKO PROFORMAX Accessories. It is a cost-effective alternative to traditional #15 asphalt saturated felt, and is covered by a limited 15-year material warranty¹.


Here’s why it rocks.

  • Stronger than felt.  Stormtite® is more resistant to tearing and shredding when installers walk on it.  Plus it’s coated top and bottom with tough polyolefin for superior weather-resistance.
  • More flexible, even in cold weather. Stormtite is easy to install around vents, dormers, skylights and other typical roof structures. It lays flat without curling and is super durable.
  • Synthetic, non-breathable material. Stormtite effectively sheds water that gets behind shingles and it’s engineered to be a vapor-retarder. Thanks to built-in UV stabilizers, it can be left exposed for up to 30 days and will continue to perform.
  • Lighter than felt. A single roll of Stormtite® contains 1000 square feet but weighs only 21.5 lb. It’s easier for your installers to handle.

Ready to Roll with Stormtite?

76.2 m (250 ft) x 1,219 mm (48")
Qty Per Pallet
56 Rolls
Quantity Per Unit/Package
92.9 m ² (1,000 sq ft)

All values shown are approximate. This product is a vapor retarder, so the airspace beneath the roof deck should be properly and thoroughly ventilated to avoid risk of moisture condensation.

¹ See Limited Warranty at for complete terms, conditions, restrictions and application requirements.

For products with Miami Dade NOA, Florida Product Approval, and Texas Department of Insurance listings are available. For more information please contact IKO at: 1-888-IKO-ROOF (1-888-456-7663)

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