Comparing Weep Vents: A Guide to Moisture Management Solutions by Manufacturer

Moisture management is a critical aspect of masonry construction. One of the most overlooked—but essential—components of this system is the weep vent. Below, we’ve broken down popular weep products by manufacturer to help you make the best decision for your next project.

Hohmann & Barnard

Quadro-Vent Standard

• Honeycomb design for moisture passage and insect protection

• Polypropylene construction (ASTM compliant)

• Can be used at top or bottom of walls

• Sizes: Standard (3/8" x 2-1/2" x 3-3/8"), Jumbo (3/8" x 3-3/8" x 3-1/2")

• Colors: Black, Gray, Clear, Almond, Buff, Cocoa, White

Mortar Trap Weep Vent

• Made of 100% recycled polyester mesh

• UV and flame retardant

• Anti-microbial (meets AATCC Test Method 30)

• Size: 3/8” x 2 ½” x 3 ½”

• Colors: Almond, Brown, Gray, Red, Tan, White

341 Series Round Plastic Weep Holes

• Medium Density Polyethylene

• Options: Plain, with cotton wick, screen insert (brass or stainless), or both

• Size: 3/8" O.D. x 4" long

342 Series Rectangular Plastic Weep Holes

• Clear Butyrate construction

• Options: Plain, cotton wick, screen insert, or both

• Size: 3/8" x 1 1/2" x 3 1/2"

343 Louvered Weep Holes

• Louvered PVC construction to prevent backflow

• Promotes airflow and pressure equalization

• Sizes: 2-1/4", 2-7/8", 3-1/2" heights

• Color: Gray

Mortar Net Solutions

CellVent

• Durable polypropylene

• Helps with moisture migration and airflow

• Sizes: ⅜” x 2½” x 3⅜” and ⅜” x 3½” x 3⅜”

• Colors: Black, Brown, Cocoa, Tan, Gray, White, Clear

WeepVent

• 90% open-weave polyester mesh

• Self-retaining design (prickly adhesion)

• UV treated (select colors)

• Size: ½” x 2⅝” x 3½”

• Colors: Brown, Tan, Red, Almond, White, Gray, Black, Pebble

York Flashings

Stainless Steel Weep Vents

• Type 304 stainless steel

• Designed for use with York flashing systems

• Sizes: Standard (2.5" x 3.5" x .38"), Jumbo (3.5" x 3.5" x .38")

MTI (Masonry Technology Incorporated)

Cavity Weep™ (CV 5010)

• Self-spaced design with continuous belt

• Durable and easy to install

Stone Cavity Weep™ (SCV 5012)

• For natural stone installations

• Spacing: 9.5" O.C., Belt Width: 1", Weep Leg Width: 2.25"

Wall Opening Weeps™ (WOW 9095)

• L-shaped design for above window/door openings

• Blends with mortar and compatible with many materials

• Dimensions: 9" x 2.25" and 5" x 2.5" legs

Concealed Lintel Weep™ (CLW 9040)

• Designed for use with lip brick in hidden joints

• Creates tunnel weeps in bed joint mortar

• Made from 100% recycled high-impact polystyrene

Core Cavity Weep™ (CCV 5020)

• Drains both CMU block cores and veneer cavities

• Weep Legs: 2.5" wide, Belt: 2", Total Width: 12"

Head Joint Weep™ (HJW 3845)

• Acetac construction

• Size: 3/8" x 3/8" x 4.5"

• Time-saving installation for brick veneers

Retrofit Weep™ (MRW 3408)

• Retrofit system compatible with MTI’s Retrofit Brick Tie™

• Suitable for flood damage and historical restoration

Tuck Point Retrofit Weeps™ (TRW 1425)

• Designed for use in oversized masonry units and retrofits

• Installed into removed mortar joints

Vent Mat™ (VM 9025)

• Ideal for block basement walls

• Forms 16 weep holes per block

• Size: 2.25" weep legs @ 4.5" O.C.; Belt Width: 2.5", Total Width: 11.5"

Conclusion

Selecting the right weep vent depends on your wall system, aesthetic needs, and moisture management goals. Whether you're working on a new build, restoration, or specialty masonry installation, there’s a weep vent suited to your needs from Hohmann & Barnard, Mortar Net Solutions, York, or MTI. Contact us today for help choosing the best product for your next job!