- Serves as waterproofing materials on wooden flat-form, This is required before laying the Asphalt, not only to prevent water leakage but to hold and bond the shingles from the underlayment as well.
- Easy to install, it also provide a safe walking surface for roofing professionals and can be installed over various types of roofing decks.
- Roof Deck protection, provides long-lasting durability while preventing water infiltration under thee shingles from a wind driven rain.
See installation requirements below:
- Installation at Standard Slope; ” Slopes 4″ in 12″ Plus ” – 200mm minimum End Lap, 150mm Vertical seams min. lap, 100mm Top Lap
- Installation at Low Slopes; Slopes 2″ in 12″ to Less than 4″ in 12″ First and succeeding course are 36″ wide with 19″ Lap. End Lap is 300mm
- Imported materials, specially design for Owens Corning Asphalt Roofing Shingles
