Model # 5003000

Internet #202800772

Grace Ultra 198 sq. ft. Roll Roofing Underlayment
0048444000057

Grace

Ultra 198 sq. ft. Roll Roofing Underlayment

$284.25 /roll

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Product Overview

Grace Ultra fully-adhered, smooth surface roofing underlayment is designed for extreme temperature roof assemblies. It delivers best in class water protection in applications where withstanding high in-service temperatures for extended periods of time is required. Grace Ultra roofing underlayment is a unique waterproofing solution that matches the long term durability of copper roofs.

  • Heat resistance up to 300° F: 100% butyl adhesive is ideal for use in elevated temperatures, for copper, zinc roofs, or any application where superior heat resistance is required
  • Superior protection for expensive metal roofs: Unique solution for protecting high end roof coverings
  • Membrane bonds to the roof deck and forms high quality laps: Helps ensure watertight seal and premium leak protection
  • Compatible with roofing materials: Provides watertight transition between low slope and steep slope roofs
  • Protects roofs from wind driven rain and ice dams
  • Aesthetically pleasing - the thin membrane meets code standards for fastener seal ability but will not show through roof coverings
  • Grace expertise: Developed by the recognized leader in self-adhered roofing underlayments and the manufacturer of Grace Ice & Water Shield
  • Grace expertise - Grace is the recognized leader in self-adhered roofing underlayment and is the manufacturer of Grace Ice & Water Shield

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Customer Questions & Answers

Ultra 198 sq. ft. Roll Roofing Underlayment
Ultra 198 sq. ft. Roll Roofing Underlayment

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This question is from Ultra 198 sq. ft. Roll Roofing Underlayment
 
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Will it seal screws

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July 12, 2016
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August 4, 2016
Answer: 
Grace Ultra is designed to seal around fasteners used to secure roofing materials, and is tested for this property using roofing nails. It will seal around other fastener types, such as screws. The dimensions of the screw can significantly affect the seal, with larger screws being more challenging. For added protection, apply a compatible sealant, such as silicone, to the head of each screw.
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What is the actual thickness of this product.

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ALABAMMA
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September 26, 2015
On this site it says 1.18110 but I'm sure it's not over an inch thick. Is it .118 or .181 of an inch.
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September 28, 2015
Answer: 
The product is 30 mils (0.76 mm) thick. We will update the specs. It should read: 0.03 inches
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1. can this be used on al low slope roof and how many rolls would I need to cover 2000 square feet ? Do I need anything else to prevent ice jam leak ?

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Ottawa, canada
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September 8, 2015
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September 25, 2015
Answer: 
Grace Ultra, and other Grace underlayments, are designed for use in roofing applications where the slope is 2:12 or greater. Grace Ultra seals to the roof deck material, seals at overlaps, and seals around fasteners to prevent leaks due to wind driven rain and ice dams. You will likely need about 12-13 rolls to complete your project.
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