VB Synthetics is a premier manufacturer of synthetic underlayment(s) for use under all types of roofing ranging from sloped to metal roofing. VB Synthetics is passionate about all aspects of Building Envelope, and we continue to develop innovative products.
VB Synthetics Products –
Product Name | Underlayment Thickness (mil) |
---|---|
VB Defender | 6.5 Mil |
VB Shield | 7 Mil |
VB Armor | 11 Mil |
VB Extreme SA (self-adhesive) | 48 Mil |
SLIPGUARD is a front and back enhanced slip-resistant walking surface. All of VB Synthetics underlayments, come with our 50-year premium warranty and are manufactured with the cutting edge SLIPGUARD resistant feature.
VB Synthetics underlayment products are completely inert to mold growth for up to 6 months and do not expand or contract as they lay flat without buckling.
Does your roofing project demand a safe and comfortable walking surface? Are you looking for a product that exceeds 30lb felt? If the answer is yes, we offer VB Armor, our premium grade roof underlayment.
VB Synthetics provides premium roof underlayment available nationwide. Our new addition, “VB Extreme SA” is now available nationwide! VB Extreme SA, is the next generation self-adhered backing.
All VB Synthetics underlayment’s meet or exceed ASTM D 4869, ASTM D 226, ICC-ES AC188, ICC-ES AC188, FBC (HVHZ) TAS 103, Miami-Dade 2014 FBC, Texas Department of Insurance.
FIGHT THE ELEMENTS WITH OUR ALL WEATHER DEFENSE SYSTEMS
Quality roofing underlayment is critical for helping to prevent wind-driven rain from infiltrating under the roof’s shingles and potentially damaging the home’s structure and interior. Traditional asphalt felt underlayment’s tear easily and absorb moisture, leading to wrinkling that telegraphs through the shingles. Competitively priced with typical #15 and #30 asphalt felts, VB Synthetics, VB DEFENDER Synthetic Roofing Felt is virtually untearable and will not absorb moisture, helping to prevent wrinkling.
Its specially designed surface combines enhanced walkability with a cooler working surface (vs. typical black asphalt felts).
Specs & Compliance download brochureTDI instructions for installation
PROPERTY | |||
---|---|---|---|
ASTM | Min. Average roll value | Tolerance | |
Color | Grey-White | ||
Roll Width (in.) | 48″ | -0/+1/4” | |
Roll Length (ft.) | 250 | ||
Total fabric weight (gsm) | 100.50 | +/- 5 | |
Scrim (Weave Count) | 9×7 | ||
MD Grab Strength | ASTM D751 | 100 LBS | 90 LBS MIN |
CD Grab Strength | ASTM D751 | 90 LBS | 85 LBS MIN. |
MD Trapezoidal Tear | ASTM D2261 | 21 LBS | 20 LBS MIN. |
CD Trapezoidal Tear | ASTMD 2261 | 17 LBS | 15 LBS MIN |
Elongation (MD/CD) % | ASTM D751 | 19/18 | 15 MIN |
Sandwich coating (gsm) | 16 | ||
Antislip coating (gsm) | 17 | ||
C O F | ASTMD1894 | 0.44 | 0.3 MIN |
Click here to download these specifications.
One Square = 100 sq. ft. (9.29 m2)
10 Squares/Roll;* 56 Rolls per Pallet
Performance-grade synthetic roofing underlayment for use under:
A 50-year limited warranty applies to All VB Synthetic underlayments. Please contact VB Synthetics or visit vbsynthetic.com for details. No warranty, express or implied, is given as to the merchantability and fitness for a particular purpose, or otherwise for applications outside the scope of the installation guidelines.
VB Defender Plus is 25 times stronger and more durable than the leading 15-pound felt. Its superior lay-flat properties and water resistance keep it from warping, winkling, and cracking in cold weather, while its enhanced UV protection reduces heat buildup on hot days. It’s also 100% inorganic, so it will not rot or mold.
With less weight per roll, VB Defender Plus is easier to handle during all stages of installation, while remaining strong enough to resist tearing and stretching in high-traffic areas and during high winds. VB Synthetics’ proprietary SlipGuard skid-resistant surface offers dynamic steep-slope traction, ensuring the best walking surface available. Plus, VB Shield is environmentally responsible and may contribute to your LEED and RGBP ratings.
Specs & Compliance download brochureTDI installation instructions
PROPERTY | TEST METHOD | TYPICAL PROPERTY |
---|---|---|
Grab Breaking MD/CD (lbs) | ASTM D751 | MD 119 lbs CD 109 lbs |
Tearing Strength MD/CD (lbs) | ASTM D751 | MD 22 lbs CD 19 lbs |
Elongation MD/CD (%) | ASTM D751 | MD 20% CD 19% |
COF | ASTM D1894 | 0.3 / 0.50 |
Sandwich Coating (gsm) | 22 | |
Second Anti-Slip Coating (gsm) | 21 | |
Total Fabric Weight (gsm) | 110.15 |
One Square = 100 sq. ft. (9.29 m2
10 Squares/Roll; * 56 Rolls per Pallet
CLOSE THIS WINDOWPerformance-grade synthetic roofing underlayment for use under:
A 50-year limited warranty applies to All VB Synthetic underlayments. Please contact VB Synthetics or visit vbsynthetic.com for details. No warranty, express or implied, is given as to the merchantability and fitness for a particular purpose, or otherwise for applications outside the scope of the installation guidelines.
VB Shield is 25 times stronger and more durable than the leading 15-pound felt. Its superior lay-flat properties and water resistance keep it from warping, winkling, and cracking in cold weather, while its enhanced UV protection reduces heat buildup on hot days. It’s also 100% inorganic, so it will not rot or mold.
With less weight per roll, VB Shield is easier to handle during all stages of installation, while remaining strong enough to resist tearing and stretching in high-traffic areas and during high winds. VB Synthetics’ proprietary SlipGuard skid-resistant surface offers dynamic steep-slope traction, ensuring the best walking surface available. Plus, VB Shield is environmentally responsible and may contribute to your LEED and RGBP ratings.
Specs & Compliance download brochureTDI installation instructions
PROPERTY | |||
---|---|---|---|
ASTM | Min. Average roll value | Tolerance | |
Color | Grey-White | ||
Roll Width (in.) | 48″ | -0/+1/4” | |
Roll Length (ft.) | 250 | ||
Total fabric weight (gsm) | 110.50 | +/- 5 | |
Scrim (Weave Count) | 9×7 | ||
MD Grab Strength | ASTM D751 | 120 LBS | 110 LBS MIN |
CD Grab Strength | ASTM D751 | 110 LBS | 85 LBS MIN. |
MD Trapezoidal Tear | ASTM D2261 | 22 LBS | 20 LBS MIN. |
CD Trapezoidal Tear | ASTMD 2261 | 19 LBS | 18 LBS MIN |
Elongation (MD/CD) % | ASTM D751 | 19/18 | 15 MIN |
Sandwich coating (gsm) | 18 | ||
Antislip coating (gsm) | 20 | ||
C O F | ASTMD1894 | 0.45 | 0.3 MIN |
Click here to download these specifications.
48” X 250’ (1.22m X 76.20m)
CLOSE THIS WINDOWPerformance-grade synthetic roofing underlayment for use under:
A 50-year limited warranty applies to All VB Synthetic underlayments. Please contact VB Synthetics or visit vbsynthetic.com for details. No warranty, express or implied, is given as to the merchantability and fitness for a particular purpose, or otherwise for applications outside the scope of the installation guidelines.
Step up to the next level in safety, strength, and performance. VB Armor is stronger than 30-pound felt, but it’s lighter and easier to handle, making your job easier. VB Armor includes all the features of VB Shield, from the cutting-edge SlipGuard walking surface to five times more coverage per roll than Type 30 felt.
Like VB Shield, it meets building codes for residential and commercial projects, it is completely inorganic and asphalt-free (meaning no rotting or molding), and it is treated to resist excessive degradation from normal UV exposure for up to six months. So when you need the next level in roofing underlayment, VB Armor delivers premium quality you can count on.
Specs & Compliance download brochureTDI instructions for installation
PROPERTY | |||
---|---|---|---|
ASTM | Min. Average roll value | Tolerance | |
Color | Grey-White | ||
Roll Width (in.) | 48″ | -0/+1/4” | |
Roll Length (ft.) | 250 | ||
Total fabric weight (gsm) | 155.50 | +/- 5 | |
Scrim (Weave Count) | 9.5X10.5 | ||
MD Grab Strength | ASTM D751 | 165 LBS | 160 LBS MIN |
CD Grab Strength | ASTM D751 | 170 LBS | 155 LBS MIN. |
MD Trapezoidal Tear | ASTM D2261 | 33 LBS | 30 LBS MIN. |
CD Trapezoidal Tear | ASTMD 2261 | 31 LBS | 30 LBS MIN |
Elongation (MD/CD) % | ASTM D751 | 19/18 | 15 MIN |
Sandwich coating (gsm) | 20 | ||
Antislip coating (gsm) | 24 | ||
C O F | ASTMD1894 | 0.46 | 0.3 MIN |
Click here to download these specifications.
48” X 250’ (1.22m X 76.20m)
CLOSE THIS WINDOWPerformance-grade synthetic roofing underlayment for use under:
A 50-year limited warranty applies to All VB Synthetic underlayments. Please contact VB Synthetics or visit vbsynthetic.com for details. No warranty, express or implied, is given as to the merchantability and fitness for a particular purpose, or otherwise for applications outside the scope of the installation guidelines.
VB Synthetics Extreme SA is a highly engineered Self Adhered Peel & Stick synthetic roofing underlayment designed for sloped roofs.
The adhesive layer is made from the advanced SBS Modified Bitumen based adhesive which performs extremely well in high as well as low temperatures and gives excellent adhesion to the primary roofing surface whether it is plywood or metal. The temperature performance range for VB Synthetics Extreme SA is -40° F to 260° F (-40° C to 126° C). It has a split release liner with silicone coating on both sides which helps in easier installation.
VB Extreme SA has a light gray top layer which provides for a cooler working surface. VB Extreme’s SUREGRIP high traction walking surface permits easier steep slope walk-ability, even during high condensation or moisture on the surface.
Roll Size: 36″ x 66′ 8″ (2 squares)
Minimum Purchase: One pallet (25 two-square rolls)
Features & Benefits
Specs & Compliance download brochureTDI instructions for installation
PROPERTY | TEST METHOD | TYPICAL PROPERTY |
---|---|---|
Grab Breaking MD/CD (lbs) | ASTM D751 | MD 200 lbs CD 150 lbs |
Tearing Strength MD/CD (lbs) | ASTM D751 | MD 70 lbs CD 50 lbs |
Elongation MD/CD (%) | ASTM D751 | MD 20% CD 19% |
COF | ASTM D1894 | 0.46 |
Sandwich Coating (gsm) | 27 | |
Second Anti-Slip Coating (gsm) | 18 | |
Total Fabric Weight (gsm) | 155.5 |
Click here to download these specifications.
36″ x 66′ 8″ (2 squares)
CLOSE THIS WINDOWPerformance-grade synthetic roofing underlayment for use under:
A 50-year limited warranty applies to All VB Synthetic underlayments. Please contact VB Synthetics or visit vbsynthetic.com for details. No warranty, express or implied, is given as to the merchantability and fitness for a particular purpose, or otherwise for applications outside the scope of the installation guidelines.
KEEP UP TO DATE WITH VB SYNTHETICS
CRCA Chicago / Drury Lane convention center, Oak Brook, Il
January 18-20th, 2023
Booth# 511
NAHB/IBS, Las Vegas Convention center
January 31-February 2nd
Booth South Hall# SU 1015
International Roofing Expo
Kay Bailey Hutchinson convention center
March 5th – March 9th
Booth# 6504
WTS Broward County Convention center, Fort Lauderdale, FL
March 13th – 17th
Booth# 732
Click here to download these specifications.
PROPERTY | TEST METHOD | TYPICAL PROPERTY |
---|---|---|
Grab Breaking MD/CD (lbs) | ASTM D751 | MD 119 lbs CD 109 lbs |
Tearing Strength MD/CD (lbs) | ASTM D751 | MD 22 lbs CD 19 lbs |
Elongation MD/CD (%) | ASTM D751 | MD 20% CD 19% |
COF | ASTM D1894 | 0.3 / 0.50 |
Sandwich Coating (gsm) | 22 | |
Second Anti-Slip Coating (gsm) | 21 | |
Total Fabric Weight (gsm) | 110.15 |
One Square = 100 sq. ft. (9.29 m2)
10 Squares/Roll;* 56 Rolls per Pallet
Performance-grade synthetic roofing underlayment for use under:
A 50-year limited warranty applies to All VB Synthetic underlayments. Please contact VB Synthetics or visit vbsynthetic.com for details. No warranty, express or implied, is given as to the merchantability and fitness for a particular purpose, or otherwise for applications outside the scope of the installation guidelines.
Click here to download these specifications.
PROPERTY | TEST METHOD | TYPICAL PROPERTY |
---|---|---|
Grab Breaking MD/CD (lbs) | ASTM D751 | MD 119 lbs CD 109 lbs |
Tearing Strength MD/CD (lbs) | ASTM D751 | MD 22 lbs CD 19 lbs |
Elongation MD/CD (%) | ASTM D751 | MD 20% CD 19% |
COF | ASTM D1894 | 0.3 / 0.50 |
Sandwich Coating (gsm) | 22 | |
Second Anti-Slip Coating (gsm) | 21 | |
Total Fabric Weight (gsm) | 110.15 |
One Square = 100 sq. ft. (9.29 m2
10 Squares/Roll; * 56 Rolls per Pallet
Performance-grade synthetic roofing underlayment for use under:
A 50-year limited warranty applies to All VB Synthetic underlayments. Please contact VB Synthetics or visit vbsynthetic.com for details. No warranty, express or implied, is given as to the merchantability and fitness for a particular purpose, or otherwise for applications outside the scope of the installation guidelines.
Click here to download these specifications.
PROPERTY | |||
---|---|---|---|
ASTM | Min. Average roll value | Tolerance | |
Color | Grey-White | ||
Roll Width (in.) | 48″ | -0/+1/4” | |
Roll Length (ft.) | 250 | ||
Total fabric weight (gsm) | 110.50 | +/- 5 | |
Scrim (Weave Count) | 9×7 | ||
MD Grab Strength | ASTM D751 | 120 LBS | 110 LBS MIN |
CD Grab Strength | ASTM D751 | 110 LBS | 85 LBS MIN. |
MD Trapezoidal Tear | ASTM D2261 | 22 LBS | 20 LBS MIN. |
CD Trapezoidal Tear | ASTMD 2261 | 19 LBS | 18 LBS MIN |
Elongation (MD/CD) % | ASTM D751 | 19/18 | 15 MIN |
Sandwich coating (gsm) | 18 | ||
Antislip coating (gsm) | 20 | ||
C O F | ASTMD1894 | 0.45 | 0.3 MIN |
48” X 250’ (1.22m X 76.20m)
Performance-grade synthetic roofing underlayment for use under:
A 50-year limited warranty applies to All VB Synthetic underlayments. Please contact VB Synthetics or visit vbsynthetic.com for details. No warranty, express or implied, is given as to the merchantability and fitness for a particular purpose, or otherwise for applications outside the scope of the installation guidelines.
Click here to download these specifications.
PROPERTY | |||
---|---|---|---|
ASTM | Min. Average roll value | Tolerance | |
Color | Grey-White | ||
Roll Width (in.) | 48″ | -0/+1/4” | |
Roll Length (ft.) | 250 | ||
Total fabric weight (gsm) | 155.50 | +/- 5 | |
Scrim (Weave Count) | 9.5X10.5 | ||
MD Grab Strength | ASTM D751 | 165 LBS | 160 LBS MIN |
CD Grab Strength | ASTM D751 | 170 LBS | 155 LBS MIN. |
MD Trapezoidal Tear | ASTM D2261 | 33 LBS | 30 LBS MIN. |
CD Trapezoidal Tear | ASTMD 2261 | 31 LBS | 30 LBS MIN |
Elongation (MD/CD) % | ASTM D751 | 19/18 | 15 MIN |
Sandwich coating (gsm) | 20 | ||
Antislip coating (gsm) | 24 | ||
C O F | ASTMD1894 | 0.46 | 0.3 MIN |
48” X 250’ (1.22m X 76.20m)
Performance-grade synthetic roofing underlayment for use under:
A 50-year limited warranty applies to All VB Synthetic underlayments. Please contact VB Synthetics or visit vbsynthetic.com for details. No warranty, express or implied, is given as to the merchantability and fitness for a particular purpose, or otherwise for applications outside the scope of the installation guidelines.
Click here to download these specifications.
PROPERTY | TEST METHOD | TYPICAL PROPERTY |
---|---|---|
Grab Breaking MD/CD (lbs) | ASTM D751 | MD 200 lbs CD 150 lbs |
Tearing Strength MD/CD (lbs) | ASTM D751 | MD 70 lbs CD 50 lbs |
Elongation MD/CD (%) | ASTM D751 | MD 20% CD 19% |
COF | ASTM D1894 | 0.46 |
Sandwich Coating (gsm) | 27 | |
Second Anti-Slip Coating (gsm) | 18 | |
Total Fabric Weight (gsm) | 155.5 |
36″ x 66′ 8″ (2 squares)
Performance-grade synthetic roofing underlayment for use under:
A 50-year limited warranty applies to All VB Synthetic underlayments. Please contact VB Synthetics or visit vbsynthetic.com for details. No warranty, express or implied, is given as to the merchantability and fitness for a particular purpose, or otherwise for applications outside the scope of the installation guidelines.