CertainTeed Roofing RoofRunner High-Performance Synthetic Roofing Underlayment, 4 ft x 250 ft Roll (10 SQ)
SKU: 86298007348

CertainTeed Roofing RoofRunner High-Performance Synthetic Roofing Underlayment, 4 ft x 250 ft Roll (10 SQ)

Sale price$115.82 Regular price$128.69
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Description

CertainTeed Roofing RoofRunner High-Performance Synthetic Roofing Underlayment, 4 ft x 250 ft Roll (10 SQ)RoofRunner Synthetic Roofing Underlayment, 4'x250' Lightweight, scrim reinforced synthetic underlayment engineered for asphalt shingle roofs. Provides water resistant protection with a special top surface treatment for excellent slip resistance and superior dimensional stability versus felt. Key Features: High Slip Resistance: Special top surface treatment for secure footing, even when wet Water Resistant Protection: Acts as a barrier beneath asphalt

RoofRunner Synthetic Roofing Underlayment, 4'x250'

Lightweight, scrim-reinforced synthetic underlayment engineered for asphalt shingle roofs. Provides water-resistant protection with a special top surface treatment for excellent slip resistance and superior dimensional stability versus felt.


Key Features:

  • High Slip Resistance: Special top surface treatment for secure footing, even when wet
  • Water-Resistant Protection: Acts as a barrier beneath asphalt shingles on roof decks
  • Dimensional Stability: Resists moisture-related expansion to help prevent telegraphing wrinkles
  • Lightweight Synthetic Build: Polymer-based, scrim-reinforced for strength and ease of handling
  • Large Coverage: 10 square (1,000 sq. ft.) per 4' x 250' roll

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Roll Width 4' (1220 mm)
Roll Length 250'
Coverage per Roll 1000 sq. ft. (10 squares)
Thickness 7 mil
Material Lightweight synthetic polymer-based, scrim-reinforced
Surface Treatment Special top surface for excellent slip resistance
Use Water-resistant layer beneath asphalt roofing shingles on roof decks
Fire Rating ASTM E108, Class A
Standards/Approvals ASTM D226; ICC-ES AC188; ICC-ES ESR 4103; TDI Approved; Florida Approval FL21841; Miami-Dade County Approved

Frequently Asked Questions (FAQ):

Q: What roofing types is RoofRunner intended for?
A: Designed for use beneath asphalt roofing shingles on roof decks.


Q: Is the surface safe to walk on during installation?
A: Yes, it has a special top surface treatment that provides excellent slip resistance, even when wet.


Q: How much area does one roll cover?
A: Each 4' x 250' roll covers 10 squares, or 1,000 sq. ft.


Q: How does it compare to felt underlayment?
A: It offers superior dimensional stability when wet, helping prevent wrinkles that can telegraph through shingles.


Q: What standards or approvals does it meet?
A: ASTM D226; ASTM E108 Class A Fire; ICC-ES AC188; ICC-ES ESR-4103; TDI Approved; Florida Approval FL21841; Miami-Dade County Approved.


A Sleek, Secure Foundation for Elevated Roofscapes

RoofRunner lays down a crisp, modern layer that streamlines the roofing silhouette while elevating performance. Its scrim-reinforced body and slip-resistant finish feel tailored—quietly sophisticated beneath the shingles. Pair it with architectural asphalt shingles to keep lines clean and surfaces flawless. This underlayment is the unseen essential that brings polish and luxury to the entire roof.


Choose RoofRunner to secure your roof with stable, slip-resistant protection and cover 1,000 sq. ft. per roll with confidence.

Warranty

Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 86298007348

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Daniela Esquivel
Chelsea, US
★★★★★ 4
So far I like it
I bought this combo because I have used the ordinary before and liked the results. So far I’m not a fan of the lotion, feels a bit too thick for my liking. But other 2 products so far are making my skin look brighter and hydrated. I didn’t break out at first with the oil because I’m sensitive to too much oil but my skin adjusted to it. Definitely value for your money.
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Reviewed in the United States on November 24, 2025
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Joyce Zermeño
Omaha, US
★★★★★ 5
Buenos
Excelente
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Reviewed in the United States on May 28, 2025
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Some_Guy
Boise, US
★★★★★ 5
30+ years of daily rosacea symptoms (cheeks, raccoon eyes, hot flashes, occasional small bumps)
Had an immediate and significant positive effect on my facial rosacea. Symptoms have reduced by approximately 80% over the course of a month or so, greatly reduced the frequency of uncomfortable social situations and associated ruminations. Excellent value for money as well, but if you have facial hair you will end up using a little extra every wash. Sulfur based products reduce my rosacea, but cause an excessive amount of exfoliation on my face several hours after washing. Azelaic acid did not seem to aggravate my skin in that way. It's probably worth trying this one first, I was prepared to seek medical intervention to stop this.
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Reviewed in the United States on May 8, 2026
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Kaitlyn
Houston, US
★★★★★ 5
So far, so good!
Love the texture and it seems to calm my sensitive skin! I definitely recommend following the suggestion to let the product sit on your skin for 30-60 seconds, I think it really helps boost the effectiveness
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Reviewed in the United States on May 26, 2026
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Susan Carr
Carnegie, US
★★★★★ 5
Gentle and genuinely soothing for hyperactive skin
I've been looking to switch my skin care line, since the one I have been using for a few years just keeps increasing their prices. I'm so glad I found this line! Clean ingredients and genuinely good for any skin type. The cleanser is gentle and I like that it doesn't foam. Leave it on for up to a minute after massaging it in and see results after just two uses! My skin is firmer and more even-toned. Hughly recommended using it with the exfoliator and moisturizer!
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Reviewed in the United States on April 30, 2026

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