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Overview: 

Mortar Net® is the leading mortar dropping collection product providing the solution for clogged weep holes in masonry cavity construction.

Mortar Net® ensures masonry walls breathe, drain and dry quickly and efficiently.

Mortar Net® eliminates weep hole blockage from mortar droppings and ensures water that enters the wall will be directed to the weep holes. Mortar Net® is placed on top of the flashing inside the wall cavity where it catches and permanently suspends mortar droppings above the level of the weep holes. Its patented dovetail shape prevents mortar from forming a continuous dam and its shape, in combination with its 90 percent open mesh weave, allows water to rapidly and easily move through the material of the product to the weeps.

It also allows for proper air movement in and out of the cavity. This eliminates pressure differentials that force moisture into the cavity, thus promoting rapid drying of the wall.

Mortar Net's® efficient management of moisture migration eliminates efflorescence on interior and exterior masonry walls, prevents damage caused by freeze-thaw cycles and is the first step in preventing conditions that allow mold growth.

Technical Data: 


Mortar Net is made of recycled polyester or high-density
polyethylene. This material will not oxidize, rot, promote mold or fungus, or react with other common building materials such as mortar, cement, asphalt, modified bitumen, PVC, copper, or galvanized metal, thereby ensuring long-term performance for all materials.

Mortar Net® Sizes
Width  Height  Length  Package Qty
0.4"       10"        5'             250 lf
1.0"       10"        5'             100 lf
2.0"       10"        5'             100 lf

Installation: 



Mortar Net® is easy to use. It requires no fasteners or adhesives, no special skill or tools. After the first one or two courses of bricks are laid, place a continuous row of Mortar Net® in the cavity or collar joint on the flashing against the inside of the outer wythe at the base of the wall.

To prevent mortar bridging between the outer wythe and inner wall, install flashing and any material used as filler to match cavity width to product size extending from the bottom of Mortar Net® at least 6" above the top of Mortar Net.

Multiple thickness of Mortar Net® may be installed to match cavity widths and if excessive droppings are expected. Inspection, preparation, and installation procedure for multiple thickness is the same as for single thickness. When installing multiple thickness align the dovetail sections with each other.

Cavity should be no more than ¼" wider than 1.0" or 2.0" thick material and 0.4 thick material should touch both the outer and inner wall, insulation or filler used to adjust the cavity size. Mortar Net® is compressible to allow for variation in wall cavities.

Test Result: 


Comparative Study of the Effectiveness of Two Wall Drainage Systems Used in Masonry Cavity Wall Construction

Test Method: ASTM E-514 (modified)
Test Date: December 4, 1994
Test Performed by: Robert L. Nelson & Associates Construction Materials Laboratory (847) 882-1146

Test Results  MortarNet®                                                 
First visible water on cavity side of brick..10 minutes
Appearance of flowing water on
cavity side of brick.................................17 minutes
Water passing through weep hole
at brick wythe face
3 hours.................................................2.6 gal/hr
72 hours...............................................2.9 gal/hr                    
Conclusions
This study indicates that the Mortar Net® is clearly superior to pea gravel in allowing water to pass from the cavity to the exterior wall via the weep holes, with a flow rate approximately five times that of pea gravel after three hours and more than twice that of pea gravel after 72 hours.

Complete test results are available upon request.

Project: 


Mortar Net® USA, Ltd. Projects

Notre Dame Football Stadium

South Bend, IN

Phoenix Municipal Baseball Stadium

Phoenix, AZ

US Postal Buildings

  

Home Depots

  

Cermak School

  

PNC Park (Baseball)

Pittsburgh, PA

Heinz Field (Football)

Pittsburgh, PA

Meijer Stores

  

Seattle City Hall

Seattle, WA

Tinley Park Community Center

Tinley Park, IL

Notre Dame High School

Niles, IL

Sprint Corporate Park

Overland Park, KS

Church of Latter Day Saints

  

Walgreens

  

Marriot Hotels

  

Easton Town Center

Columbus, OH

Columbus Crew Stadium (Soccer)

Columbus, OH

Richmond Convention Center

Richmond, VA

American Indian Cultural Center

Washington, D.C.

Lexington Medical Center

Lexington, KY

Rochester Community College

Rochester, MN

Osseo-Fairchild High School

Osseo, WI

Zachary-Lane Elementary School

Plymouth, MN

University of Minnesota Walter Library

Minneapolis, MN

Engelstad Arena University of North Dakota

Grand Forks, ND

University of Mississippi

Oxford, MS

Hillcrest Church

Dallas, TX

Hocaday School

  

Meadows Museum – Southern Methodist University

Dallas, TX

Cook Children’s Center

Fort Worth, TX

Northlake Community College Library

Irving, TX

Western Hemisphere Trade Center

Laredo, TX

 

International

Kuwait Embassy BEQ

Kuwait, Saudi Arabia

Specification: 
application/pdf iconMortar Net Specifications.pdf
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