Vent Mat

Vent Mat™

Weeps for Block Basement Walls

VM 9025

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Vent Mat
  • Vent Mat
  • Vent Mat
  • Vent Mat
  • Vent Mat

Vent Mat Highlights

Vent MatTM weeps the cores of block walls into an interior drainage system.  It works because it creates many weep holes continuously along the wall.  Vent MatTM puts the weep holes at the lowest point of the wall, beneath the bed joint of mortar!



  • It forms the bottom side of the bed joint of mortar
  • It creates 16 (3/16” x 3/16”) weep holes in every block
  • All weep holes are at the lowest point of the wall and in every core
  • Easy to install, simply roll out 12” x 25’ long rolls on footings

Vent Mat Installation


  • Clean footing surface
  • Roll out Vent Mat on footings with continuous belt centered in core and legs to interior of building
  • Place bed joint of mortar on Vent Mat and lay masonry units

Vent Mat Ordering/Shipping

Contact MTI at 1-800-879-3348 for specific cost to your destination.

Vent Mat Specifications

The 2.25" (57 mm) wide weep legs at 4.5" (114 mm) on center; continuous belt 2.5" (64 mm) wide; and total width of 11.5" (292 mm). Color is black. 

Product Number VM 9025
Roll Length (Feet) 25
Rolls Per Bundle 2
Linear Feet per Bundle 50
Bundles per Box 6
Linear Feet per Box 300
Boxes per Pallet 8
Linear Feet per Pallet 2400
Pallet Size 48" x 40" x 35"