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Item #:
98881386
CertainTeed DiamondDeck Synthetic Underlayment (Single Roll)
Item #:
98881386
SLL 6422632
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 17 items left in stock.
Order now and get it around Tuesday, July 14
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What Stands Out
Water Resistance
DiamondDeck ensures exceptional water resistance, protecting roofing from leaks and moisture damage, even in the most challenging weather conditions.
Durability
Constructed from heavy-duty materials, this underlayment offers superior strength and longevity, ensuring your roof is well-supported for years to come.
Ease of Installation
Lightweight and easy to handle, DiamondDeck simplifies installation, saving contractors time and reducing labor costs during roofing projects.
Product Details
- Tested to a maximum UV resistance exposure duration of 180 days
- Based on a tough woven polyolefin reinforcement laminated between layers of specially formulated UV-stabilized polymer films
- Provide a clean, dry and smooth deck surface by eliminating dust, dirt, loose nails and other objects
- Excellent tear resistance – Durability, reduced puncture risk
- Roll Length: 250 ft. Roll Width: 4 ft. Roll Coverage: 937.5 typical net sq. ft. Roll Weight: 38 approx. lbs per roll Roll Thickness: 12 mils
Product Technical Details
| Manufacturer | CertainTeed |
| Part Number | 406552 |
| Item Weight | 38 pounds |
| Product Dimensions | 48 x 9 x 9 inches |
| Item Package Quantity | 1 |
Who Should Buy?
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Roofing Professionals
Ideal for contractors looking for reliable and durable underlayment options for long-lasting roofing installations.
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Homeowners
Great for DIY homeowners seeking high-quality protection for their roofs against water and ice damage.
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Extreme Weather Areas
Perfect for regions with heavy rain or snow, due to its excellent waterproofing and moisture-resistant properties.
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Budget-Conscious Buyers
May not suit individuals looking for the cheapest options, as it is priced higher than traditional felt underlayment.
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Non-Climate Specific Use
Not ideal for regions with mild, low-risk weather where standard underlayment might suffice.
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Temporary Installations
Not recommended for short-term roofing solutions, as its benefits are maximized in long-lasting applications.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Is DiamondDeck suitable for any roofing material?
Answer: Yes, it can be used beneath asphalt, wood, metal, concrete tiles, and slate. -
Question:
How does it prevent wrinkles compared to asphalt felt?
Answer: Its superior dimensional stability eliminates hygro-expansion wrinkles. -
Question:
What is the roll coverage of DiamondDeck?
Answer: Each roll covers approximately 937.5 square feet.
CertainTeed Underlayments Editorial Review
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MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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Youcef
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“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
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Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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SLL 6422632
Order now and get it around Tuesday, July 14
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 17 items left in stock.
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Features & Benefits
- High-performance polymer-based underlayment for roofing.
- Water-resistant and reinforced with gauze for durability.
- Eliminates hygro-expansion wrinkles found in standard asphalt felt.
- Extra-large size for quick and efficient installation.
- Offers excellent slip resistance, even in wet conditions.
- Classified by UL for fire-rated shingle systems.
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