Skip to content
DISCOUNTS ON BULK QUANTITIES! FREE SHIPPING ON ORDERS $1,500+
DISCOUNTS ON BULK QUANTITIES! FREE SHIPPING ON ORDERS $1,500+
Holiday Shipping Notice
Orders placed over the holidays may experience slight shipping delays. We appreciate your understanding! Please don’t hesitate to reach out with any questions—we’re always happy to help.

Air & Moisture Control

Proper moisture control in masonry is critical for the longevity, durability, and structural integrity of a building. Without effective moisture management, water can penetrate masonry walls, leading to problems such as efflorescence, mold growth, freeze-thaw damage, and corrosion of embedded metals. These issues can compromise not only the aesthetics but also the safety and performance of the structure.

To ensure proper moisture control, features like flashings, weep holes, vapor barriers, and sealants must be correctly designed and installed. Together, these elements direct water away from the building, protect internal components, and maintain thermal efficiency. Invest in proper moisture control for your masonry today to safeguard your structure for years to come.

Filters

  • York Seal 40 mil Self-Adhering Flashing - 75' Roll

    $126.93 - $190.40
    $126.93 - $190.40
    $126.93 - $190.40
    $126.93

    York Seal is a proprietary, self-adhering composite membrane that combines high strength, low-temperature adhesion, and high-temperature stability ...

    View full details
    $126.93 - $190.40
    $126.93 - $190.40
    $126.93 - $190.40
    $126.93

  • MTI Weep Screed Deflector 4' Long (80 Linear Feet/Tube)

    $312.62 - $312.62
    $312.62
    $312.62 - $312.62
    $312.62

    WEEP SCREED DEFLECTOR™ DEFLECTS WATER & TERMITES WSD 1309 MOST WEEP SCREEDS DON’T WEEP Weep screeds are designed to drain trapped water from th...

    View full details
    $312.62 - $312.62
    $312.62
    $312.62 - $312.62
    $312.62

  • York Stainless Steel Drip Edge (25 Pieces/Box)

    $376.00 - $376.00
    $376.00
    $376.00 - $376.00
    $376.00

    YORK'S PREFABRICATED STAINLESS STEEL DRIP EDGE and Inside/Outside Drip Edge Corners are recommended with all of York's flashing products. Made of 2...

    View full details
    $376.00 - $376.00
    $376.00
    $376.00 - $376.00
    $376.00

  • Keene Building Products Driwall Mortar Deflection

    $140.00 - $200.00
    $140.00 - $200.00
    $140.00 - $200.00
    $140.00

    COMMERICAL MASONRY DRAINAGE DEVICE – THE KEYSTONE CUT Driwall Mortar Deflection is an advanced masonry drainage device designed to catch and hold m...

    View full details
    $140.00 - $200.00
    $140.00 - $200.00
    $140.00 - $200.00
    $140.00

  • Hohmann & Barnard Enviro-Barrier VP - Fluid Applied Vapor Permeable Air & Water Barrier

    $236.56 - $2,498.25
    $236.56 - $2,498.25
    $236.56 - $2,498.25
    $236.56

    ENVIRO-BARRIER VP is a reformulated, single-component, fluid-applied air and water barrier designed for above-grade wall assemblies. This vapor-per...

    View full details
    $236.56 - $2,498.25
    $236.56 - $2,498.25
    $236.56 - $2,498.25
    $236.56

  • GCP PERM-A-BARRIER® Wall Flashing

    $144.98 - $395.20
    $144.98 - $395.20
    $144.98 - $395.20
    $144.98

    GCP PERM-A-BARRIER® WALL FLASHING SELF-ADHERING, RUBBERIZED ASPHALT FLASHING FOR CAVITY WALL MOISTURE PROTECTION PERM-A-BARRIER® Wall Flashing is a...

    View full details
    $144.98 - $395.20
    $144.98 - $395.20
    $144.98 - $395.20
    $144.98

  • MTI Vent Mat

    $142.65 - $618.46
    $142.65 - $618.46
    $142.65 - $618.46
    $142.65

    VENT MAT™ WEEPS FOR BLOCK BASEMENT WALLS VM 9025 Block basement walls are cost-effective but prone to moisture infiltration, leading to damp interi...

    View full details
    $142.65 - $618.46
    $142.65 - $618.46
    $142.65 - $618.46
    $142.65

  • Mortar Net MortarFlash 40-Mil Non-Asphaltic Flashing

    $162.00 - $243.00
    $162.00 - $243.00
    $162.00 - $243.00
    $162.00

    MortarFlash™ Non-Asphaltic is a 40-mil, polyethylene blend peel-and-stick flashing membrane designed for applications on masonry, concrete, steel, ...

    View full details
    $162.00 - $243.00
    $162.00 - $243.00
    $162.00 - $243.00
    $162.00

  • Mortar Net Stainless Steel Corners & End Dams

    $9.17 - $401.92
    $9.17 - $401.92
    $9.17 - $401.92
    $9.17

    DURABLE STAINLESS STEEL FLASHING ACCESSORIES FOR SUPERIOR MOISTURE PROTECTION Ensure your flashing installations are fully protected against moistu...

    View full details
    $9.17 - $401.92
    $9.17 - $401.92
    $9.17 - $401.92
    $9.17

  • Mortar Net Drip Edge Outside Corner

    $18.00 - $171.00
    $18.00 - $171.00
    $18.00 - $171.00
    $18.00

    PRE-FORMED METAL 90° CORNER for use in masonry cavity walls. FEATURES One piece Each leg: 3” W x 7 ½” long Stainless steel: 26 gauge BENEFITS Fa...

    View full details
    $18.00 - $171.00
    $18.00 - $171.00
    $18.00 - $171.00
    $18.00

  • Heckmann Building Products Cell Vents (200 Pieces/Box)

    $95.38 - $95.38
    $95.38
    $95.38 - $95.38
    $95.38

    VENTS FOR MOISTURE DRAINAGE AND AIRFLOW IN BRICK VENEER WALLS Cell Vents (Part No. 85) are installed in the vertical mortar joints of brick veneer ...

    View full details
    $95.38 - $95.38
    $95.38
    $95.38 - $95.38
    $95.38

  • Hohmann & Barnard 343 Louvered Weep Holes (200 Pieces/Box)

    $181.70 - $268.53
    $181.70 - $268.53
    $181.70 - $268.53
    $181.70

    343 LOUVERED WEEP WEEP HOLE The 343 Weep Hole efficiently channels water from the wall cavity while preventing reverse water infiltration. Its louv...

    View full details
    $181.70 - $268.53
    $181.70 - $268.53
    $181.70 - $268.53
    $181.70

  • MTI Mortar Belt

    $176.48 - $553.85
    $176.48 - $553.85
    $176.48 - $553.85
    $176.48

    MTI MORTAR BELT™  PREVENTS MORTAR BUILD-UP IN CMU WALLS MB 3550 The MTI Mortar Belt™ (MB 3550) is the ultimate solution for ensuring a clear draina...

    View full details
    $176.48 - $553.85
    $176.48 - $553.85
    $176.48 - $553.85
    $176.48

  • York Multi-Flash 500 SA Copper Fabric Flashing

    $109.23 - $633.46
    $109.23 - $633.46
    $109.23 - $633.46
    $109.23

    Multi-Flash 500 SA is a versatile flashing material designed with a flexible 3oz., 5oz., or 7oz. sheet of copper laminated on one side with a durab...

    View full details
    $109.23 - $633.46
    $109.23 - $633.46
    $109.23 - $633.46
    $109.23

  • York SS Termination Bar (25 Pieces/Box)

    $330.00 - $330.00
    $330.00
    $330.00 - $330.00
    $330.00

    York's Stainless Steel Termination Bars are recommended with all of York's flashing products. Made of 26-gauge stainless steel, these bars are pre-...

    View full details
    $330.00 - $330.00
    $330.00
    $330.00 - $330.00
    $330.00

  • Hohmann & Barnard Enviro-Barrier - Fluid Applied Air, Water, & Vapor Barrier

    $278.10 - $2,633.58
    $278.10 - $2,633.58
    $278.10 - $2,633.58
    $278.10

    ENVIRO-BARRIER is a single-component, fluid-applied elastomeric membrane designed to provide an effective air, water, and vapor barrier when applie...

    View full details
    $278.10 - $2,633.58
    $278.10 - $2,633.58
    $278.10 - $2,633.58
    $278.10

  • York Weep Armor - 40' Roll

    $26.25 - $39.40
    $26.25 - $39.40
    $26.25 - $39.40
    $26.25

    YORK WEEP-ARMOR – RELIABLE PROTECTION FOR WEEP VENTS AND CAVITY WALLS York Weep-Armor provides life-of-the-wall performance by keeping weep vents p...

    View full details
    $26.25 - $39.40
    $26.25 - $39.40
    $26.25 - $39.40
    $26.25

  • MTI Gravity Cavity

    $209.23 - $209.23
    $209.23
    $209.23 - $209.23
    $209.23

    GRAVITY CAVITY™ ECONOMICAL RAINSCREEN DRAINAGE PLANE GC 1816, GC 1832 PROTECT YOUR WALLS WITH AN ECONOMICAL SOLUTION Gravity Cavity™ is the cost-ef...

    View full details
    $209.23 - $209.23
    $209.23
    $209.23 - $209.23
    $209.23

  • MTI Control Cavity

    $205.10 - $205.10
    $205.10
    $205.10 - $205.10
    $205.10

    CONTROL CAVITY™ BASEMENT DRAINAGE MAT CC 4800, CC 4810 KEEP BASEMENTS DRY WITH MTI Transform damp basements into comfortable, dry living spaces wit...

    View full details
    $205.10 - $205.10
    $205.10
    $205.10 - $205.10
    $205.10

  • York HomeSeal Window and Door Flashing Membrane - 75' Roll

    $176.12 - $176.12
    $176.12
    $176.12 - $176.12
    $176.12

    York HomeSeal™ is a self-adhering composite membrane that combines high strength, low-temperature adhesion, and high-temperature stability to creat...

    View full details
    $176.12 - $176.12
    $176.12
    $176.12 - $176.12
    $176.12

  • Mortar Net Cav-Air-Ator®

    $92.16 - $217.60
    $92.16 - $217.60
    $92.16 - $217.60
    $92.16

    DRAINAGE MAT FOR BRICK AND NATURAL STONE WALLS Cav-Air-Ator® is a full wall drainage and ventilation mat designed for full brick or stone masonry w...

    View full details
    $92.16 - $217.60
    $92.16 - $217.60
    $92.16 - $217.60
    $92.16

  • PROSOCO VB Fluid-Applied Air & Water-Resistive Barrier and Water Vapor Barrier

    $243.38 - $7,046.40
    $243.38 - $7,046.40
    $243.38 - $7,046.40
    $243.38

    R-GUARD VB (VAPOR BARRIER) FLUID-APPLIED AIR, WATER, AND VAPOR BARRIER FOR MASONRY AND WALL ASSEMBLIES R-Guard VB is a high-performance, fluid-appl...

    View full details
    $243.38 - $7,046.40
    $243.38 - $7,046.40
    $243.38 - $7,046.40
    $243.38

  • MTI Tuck Point Retrofit Weeps

    $188.25 - $393.85
    $188.25 - $393.85
    $188.25 - $393.85
    $188.25

    TUCK POINT RETROFIT WEEPS™ WEEPS FOR RETROFIT AND REMODELS TRW 1425 WEEPS FOR RETROFITS & OVERSIZED STONE Unique applications require special w...

    View full details
    $188.25 - $393.85
    $188.25 - $393.85
    $188.25 - $393.85
    $188.25

  • York Flash-Vent SA SS Stainless Steel Drainage Plane Flashing - 40' Roll

    $181.54 - $544.61
    $181.54 - $544.61
    $181.54 - $544.61
    $181.54

    Flash-Vent SA SS is designed with a flexible 2 mil sheet of Type 304 stainless steel, 8 mils of co-polymer butyl adhesive with a siliconized releas...

    View full details
    $181.54 - $544.61
    $181.54 - $544.61
    $181.54 - $544.61
    $181.54

Don't see what you're looking for?

Request a special order and get a response from our team within 1 business day.