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MASONS SUPPLY COMPANY
Oregon (800) 537-3407 ♦ Washington (800) 537-6216
Clackamas | Eugene | West Eugene | Hillsboro | Medford | Portland | Salem | Wilsonville | Ridgefield | Seattle | Tacoma | Woodinville
M A S C O . N E T
SLAB/HORIZONTAL
Vapor Block™ 10, 15
Vapor Block™ 10 and 15 are high performance underslab vapor retarders designed to retard moisture migration through concrete
slabs-on-grade. Vapor Block™ is made from state-of-the-art polyethylene resins that provide superior physical and performance
properties that far exceed ASTM E-1745 (Plastic Water Vapor Retarders Used in Contact with Soil or Granular Fill Under Concrete
Slabs) Class A, B and C requirements. High tensile strength, unequaled puncture resistance, low moisture vapor permeability as well
as resistance to decay make Vapor Block one of the most effective underslab vapor retarders on the market today! Available in 10
and 15 mil thicknesses to best meet required performance specifications. Vapor Block impedes the transmission of water vapor from
traveling upward through a concrete slab-on-grade or through a concrete wall when properly installed. It is extremely important to
avoid puncturing a vapor retarder during installation to assure proper performance. Vapor Block’s puncture strength is second to
none, withstanding even the most demanding installation conditions. Vapor Block vapor retarders protect your flooring and other
moisture sensitive furnishings in your building’s interior from moisture migration. Vapor Block™ vapor retarders can also greatly reduce
condensation, mold and degradation by controlling water vapor migration. Common applications include under-slab vapor retarder,
crawl spaces, and foundation wall vapor retarder.
Vapor Block 10, 15 meets ASTM E-1745 Class A, B, C Standards.
No.
Thickness Size
Wt (lbs)
V VB10
10 mil
15' x 200'
150.0
V VB10-12 10 mil
12.5' x 200'
140.0
V VB15
15 mil
12' x 200'
175.0
Tape
No.
Size
Qty/Ctn Wt (lbs)
V VBTAPE 4" x 210'
12
3.5
Vapor Block
Concrete Slab
Building Wall
Compacted
Subgrade
6"-8" Open
Drain Rock
Vapor Retarder
VB-250
&
VB-350
Vapor Retarders are a high performance under slab vapor retarder developed to retard moisture migration through
concrete slabs. Manufactured with only high-grade virgin polyolefin resins. Design with a three layer, co-extruded, cross-laminated
system. Installed over tamped earth, sand or aggregate base by unrolling and completely covering area to receive building slab
or specified area. Overlap all seams a minimum of 6" and seal with
BB BB20T
Seam Tape. Seam tape is a high performance, low
permeance ( <0.02 perms) sealing tape designed to seal overlap seams, penetrations and repairs as part of the Vapor Retarder
system. Engineered to provide a strong bond to overlap seams at all temperatures down to 25˚F.
No.
Thickness Size
Wt (lbs)
BB VB250
11 mil
12.75' x 200' (2550 SF/Roll) 131.0
BB VB350
16 mil
12.75' x 150' (1912 SF/Roll) 137.0
Tape
No.
Thickness Size
Wt (lbs)
BB BB20T
20 mil
4" x 150'
7.0
Classification ASTM E 1745 Exceed Class A, B & C
Water Vapor
Permeance
ASTM E 96
VB250 = 0.020 perms (US)
VB350 = 0.009 perms (US)
Tensile Strength ASTM E 154-93
(ASTM D 882)
VB250 = 50 lbf / in
VB350 = 63 lbf / in
Puncture
Resistance
ASTM D 1709 VB250 = 2400 grams
VB350 = 2750 grams
Life Expectancy ASTM E 154
Indefinite
Chemical
Resistance
ASTM E 154
Unaffected
Physical Properties of VB Vapor Retarder
VAPOR RETARDER