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Item #:
34270856
SIPA 100 GSM Synthetic Waterproof Roof Underlayment 48 x 250' (1)
Item #:
34270856
SGD 142
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
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Order now and get it around Thursday, June 25
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SIPA Synthetic Roofing Underlayment 100 GSM is a lightweight synthetic roof underayment designed to enhance the life of a roof system through superior water resistance and UV protection.
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What Stands Out
High Water Resistance
The SIPA 100 GSM roof underlayment provides excellent waterproofing, effectively protecting roofs from leaks and moisture damage, ensuring long-lasting durability in all weather conditions.
Easy Installation
With its lightweight and flexible design, the SIPA underlayment simplifies installation, allowing for quick application and reducing labor time, making it ideal for contractors and DIY enthusiasts alike.
Enhanced Durability
Crafted with 100 GSM synthetic materials, this underlayment offers superior tear resistance and longevity, outperforming traditional felt options, ensuring reliable performance and value over time.
Product Details
- covers 1,000 square feet, 100GSM
- [Waterproof Protection]: Synthetic membrane offers strong water resistance to protect roof decking before and during installation of the final roof covering.
- [Standards & Approvals]: Meets/exceeds ASTM D4869 & ASTM D226 performance specifications and is TDI/FBC approved
- [UV Resistance]: Can withstand UV exposure for up to 60 days, allowing flexibility in installation scheduling.
- [Broad Use]: Suitable for both commercial and residential rooftops and compatible with asphalt shingle and metal roof systems.
- [Tools & Materials You’ll Need]: Fastening-Hammer or Roofing Nailer, Roofing Nails with Plastic Caps or Cap Staples
| Package Weight | 28.2 Pound |
Product Technical Details
| Manufacturer | XIJIA LTD GROUP |
| Item Weight | 19.71 pounds |
| Product Dimensions | 48 x 4 x 4 inches |
| Item model number | D4533 |
| Color | Gray |
| Material | non woven PP laminated with PE plus 4% UV and water resistant adhesive |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
Who Should Buy?
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Professional Contractors
Ideal for seasoned roofers needing durable, waterproof underlayment for various roofing materials and weather conditions.
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Home Renovators
Perfect for DIY enthusiasts upgrading roofs where quality and water resistance are essential for longevity and protection.
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New Roof Installations
Suitable for new constructions requiring reliable underlayment that meets modern building standards and offers long-lasting performance.
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Budget-Conscious Buyers
May not be suitable for users seeking the cheapest materials, as it is a higher-quality product with corresponding costs.
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Existing Roof Repairs
Less ideal for patch jobs on old roofs, where lesser quality alternatives may be more practical and cost-effective.
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Non-Professional Installers
Potentially challenging for inexperienced DIYers, as proper installation techniques are crucial for maximizing the product's benefits.
Product Description
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Customer Questions & Answers
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Question:
What is SIPA 100 GSM Synthetic Waterproof Roof Underlayment?
Answer: SIPA 100 GSM Synthetic Waterproof Roof Underlayment is a high-performance roofing membrane designed to provide an extra layer of protection against water infiltration and external elements. Made from synthetic materials, this underlayment features a durability rating of 100 grams per square meter (GSM), ensuring it withstands harsh weather conditions while remaining lightweight. It's ideal for use under shingles, tiles, or metal roofing, enhancing the longevity and integrity of your roofing system. -
Question:
What are the dimensions of the SIPA 100 GSM Synthetic Waterproof Roof Underlayment?
Answer: The SIPA underlayment comes in a generous size of 48 inches in width and 250 feet in length, making it suitable for a variety of roofing projects. This large roll provides ample coverage, allowing you to efficiently cover vast surfaces while minimizing seams and potential weak points. Such dimensions are perfect for residential roofing jobs, commercial projects, or large-scale renovations, ensuring all your underlayment needs are met in one roll. -
Question:
How does SIPA Underlayment compare to traditional felt roofing underlayment?
Answer: Unlike traditional felt, SIPA 100 GSM Synthetic Waterproof Roof Underlayment offers superior waterproofing, tear resistance, and UV protection. It is made from synthetic materials, which are inherently more resilient to moisture and mold compared to felt. The lightweight design allows for easier handling and installation, reducing labor time. This makes SIPA a preferable choice for builders and homeowners looking for durable and effective roofing solutions. -
Question:
Is SIPA underlayment suitable for all roofing types?
Answer: Yes, SIPA 100 GSM Synthetic Waterproof Roof Underlayment is versatile and can be used under various roofing materials, including asphalt shingles, metal roofing, and tile systems. This adaptability makes it a popular choice among contractors and DIY enthusiasts as it effectively protects your roofing structure from water damage. Whether you're constructing a new home or repairing an existing roof, this underlayment ensures that your investment is well protected. -
Question:
How do I install SIPA underlayment?
Answer: Installing SIPA 100 GSM Synthetic Waterproof Roof Underlayment is straightforward. Begin by preparing the roof deck, ensuring it's clean and free of debris. Unroll the underlayment across the roof, aligning it properly and allowing for overlaps. Use staples, nails, or roofing adhesive to secure it in place. It's important to follow the manufacturer’s installation guidelines for optimal performance and ensuring a secure watertight seal. This efficient installation process is suitable for both professionals and do-it-yourselfers. -
Question:
Does SIPA underlayment allow for vapor permeability?
Answer: Yes, SIPA 100 GSM Synthetic Waterproof Roof Underlayment features a vapor-permeable design that allows moisture generated inside the building to escape while preventing water from penetrating the roof. This characteristic helps to maintain a dry and healthy environment in attics or roof spaces, reducing the risk of mold growth and structural damage. It's particularly beneficial in climates with high humidity, making it an excellent choice for projects in such areas. -
Question:
Can I use SIPA underlayment in high wind areas?
Answer: Absolutely, SIPA 100 GSM Synthetic Waterproof Roof Underlayment is engineered to perform well in high wind conditions. Its durable construction and ability to be securely fastened make it resistant to wind uplift. For additional protection, ensure that it is installed according to the specifications and local building codes. This feature is beneficial for homeowners in regions prone to storms or high winds, providing peace of mind regarding roof stability. -
Question:
What maintenance is required for SIPA underlayment once installed?
Answer: Once installed, SIPA 100 GSM Synthetic Waterproof Roof Underlayment requires minimal maintenance. Regular roof inspections are recommended to identify any damage from external factors, such as falling debris or harsh weather conditions. Additionally, keeping gutters and drainage systems clear ensures that no water accumulates on the roof, prolonging the life of your underlayment and roofing materials. Regular check-ups help ensure that your roof remains in optimal condition without additional maintenance burdens. -
Question:
Where can I buy SIPA 100 GSM Synthetic Waterproof Roof Underlayment in the Singapore?
Answer: You can conveniently purchase SIPA 100 GSM Synthetic Waterproof Roof Underlayment from Ubuy, a reliable online retailer that specializes in a wide range of products. Ubuy provides various shipping options and often hosts promotions to enhance your shopping experience. This makes it easy for both contractors and homeowners in the Singapore to access high-quality roofing materials without hassle. -
Question:
What are the advantages of using synthetic underlayment compared to felt?
Answer: The advantages of using synthetic underlayment like SIPA 100 GSM over traditional felt include better waterproofing and durability. Synthetic materials are less prone to tearing and are resistant to mold and mildew, which can compromise the roof's integrity. Furthermore, synthetic underlayment typically weighs less than felt, making it easier to handle and install. These benefits together contribute to longer-lasting roofing solutions that provide homeowners with increased protection and peace of mind.
SIPA Roofing D4533 Editorial Review
The SIPA 100 GSM Synthetic Waterproof Roof Underlayment is a great alternative to traditional tar paper. It is made of a woven polymer that is very waterproof initially but its long-term durability when left exposed is uncertain. It is not very thick, but it is tough and won't rip like tar paper. It is recommended for use as underlayment for metal roofing and can be used temporarily to cover an asphalt roof that is leaking. One potential issue is that it can only be installed with cap-nails, so it is not self-adhering or self-sealing. Additionally, it cannot be used to cover existing shingles. During installation, a 5-inch overlap is needed to maintain efficiency. Overall, the SIPA 100 GSM Synthetic Waterproof Roof Underlayment is a reliable and cost-effective option for those looking to replace traditional tar paper with a more durable and waterproof underlayment.
Customer Reviews & Ratings
146 customers ratings
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5 Star
72%
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4 Star
9%
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3 Star
11%
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2 Star
3%
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1 Star
5%
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Pros
- Waterproof
- Tough and won't rip
- Great for use under metal roofing
- Recommended for temporary use on leaking asphalt roofs
Cons
- Cannot be self-adhered or self-sealed
Top selling Synthetic Roof Underlayment in Philippines
Last Updated on June 7, 2026
Product Price History
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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SGD 142
Order now and get it around Thursday, June 25
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Secured transaction
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Features & Benefits
- Enhances the life of a roof system.
- Superior water resistance and UV protection.
- Water-resistant and won't buckle, warp or crack.
- Suitable for sloped commercial and residential roofing applications.
- Double waterproof and FBC approved.
- 10 square roll covers 1000 square feet (100GSM).