FAQs

You install MortarNet with the dovetail up and the Insect Barrier™ to the exterior of the building.

Yes

Yes, you would use our 1” (25.4 mm) and 2” (50.8 mm) MortarNet with Insect Barrier together in a 3” (76.2 mm) cavity.

No, MortarNet will not function as designed if leaned over in the cavity.

Yes, MortarNet can be compressed to fit various cavity widths.

When MortarNet is placed against the flashing, mortar droppings cannot extend above the flashing. If rigid insulation is placed between the MortarNet and the flashing, then mortar droppings can extend above the flashing.

Yes, flashing is necessary because insulation board is not waterproof.

Yes, we recommend a bed of mortar behind the flashing at a 45° angle to slope flashing towards the weep vents.

When TotalFlash is used in a masonry cavity wall without continuous rigid insulation, MortarNet is not necessary.  When TotalFlash is used in a design where rigid insulation is placed inside the cavity against the interior wall so the insulation covers the vertical face of the TotalFlash, it may be desirable to install MortarNet between the insulation and masonry veneer to ensure mortar droppings can’t create dams.

Yes.

Yes, termination bars can be PVC or stainless steel. Drip edges can be made in copper, stainless steel, Kynar®-coated metal, and with counterflash details. Membranes include EPDM, Thermoplastic Polyolefin (TPO), Rubberized Asphalt, Stainless Steel, and Copper Laminate.

Special TotalFlash® is quoted on a per job basis. For more information, call 219-850-4505.

Yes.  Please contact Steven Fechino, sfechino@mortarnet.com or 219-850-4514 to take advantage of our free takeoff service.

Yes, end dams are required at all flashing terminations.

Yes.

Yes.  For radiuses, the drip edge is not attached at the factory to the TotalFlash® product.  Drip Edges must be field modified by the contractor and then attached to the TotalFlash®.

No, silicone sealants will not adhere to the TotalFlash® membrane. We recommend BTL-1 butyl sealant from Mortar Net Solutions for all membranes. The color of material is not important.

Yes, TotalFlash^® is compatible with all air barriers and bituminous damproofing.

Yes, TotalFlash^® has a 10 year limited warranty.

Yes, please contact our office for specific test results at 800-664-6638.

Yes.

Yes.  BlockFlash^® is designed to work on walls that are vertically reinforced.  The bridge tab on each panel can be snapped off so it will not interfere with the grouted cell.

Yes.

BlockFlash^® is installed at all flashing levels and at window and door heads.

No, it only comes in gray.

As of May, 2017, 6” BlockFlash is available for 6” CMU and structural brick. 8” BlockFlash cut to fit 6” CMU or structural brick will not function properly.

WeepVent^™ are not needed with single-wythe CMU construction.

Yes, BlockNet^® can be installed post construction for repair or renovation.

Yes, BlockNet^® can be installed in a fully grouted wall and will not affect the reinforcing.

BlockNet^® has stainless steel preformed corners.

Yes, it extends to a depth of 3 inches.

Any type of polyurethane elastomeric or polyether sealant can be used.

Run a bead of caulk along the foundation level underneath the BlockNet^®.  Also run 3 perpendicular beads on ends where overlaps occur with the next BlockNet^® strip.  (This creates the seal)

No.

0.1875″ (3/16″, 4.7625 mm) thick material:  30′ (.6825 m) x (30.48 m) rolls

0.4″ (10.16 mm) thick material:                       30” (.6825 m) x 50’ (15.24 m) rolls.

1″ (25.4 mm) thick material:                            30” (.6825 m) x 40’ (12.192 m) rolls.

2″ (50.8 mm) thick material:                           30″ (.6825 m) x 20′ (6.096 m) rolls

WallNet can be used in any cavity wall, no matter what the veneer, although its most common application is for residential and small commercial buildings using stucco or thin veneers over stud walls with wood sheathing.  For residential and small commercial buildings with a full-thickness brick or block veneer, use HouseNet, Mortar Net or TotalFlash, depending on the design.

WallNet is applied continuously throughout the cavity so it not only prevents mortar droppings from clogging the weeps but also prevents mortar or stucco from contacting the wall  sheathing and guarantees unrestricted air movement to allow the wall to dry quickly.

Yes.  WallNet will not prevent moisture from getting to the sheathing, although it will help it dry quickly if it gets wet.

Multiple tests by nationally-known Nelson Laboratories in Schaumberg, IL, have shown that, even in the most extreme conditions, water almost never penetrates beyond a fraction of an inch into the cavity.  WallNet’s mesh construction intercepts water droplets before they get to the sheathing and direct it down the cavity to the weeps.

Yes, both are necessary to make sure any moisture than penetrates the stucco or veneer can get out of the cavity and that air can circulate in the cavity to keep it dry.  WeepVent and CellVent by Mortar Net are ideal solutions for keeping weep holes open, and insects and debris out of the cavity.

Yes.  WallNet should always be installed from the bottom up, with a minimum of 6” (152.399 mm) vertical laps and 3” (76.199 mm) horizontal laps between sheets.   Be sure to stagger the lap joints.

Use staples (min. ½”, 12.7 mm), wrap cap screws or nails every 3 sq. ft.

Yes.  3/16” WallNet is 40% pre-consumer recycled content, and 0.4” and 1” WallNet are 17% post-consumer and 33% pre-consumer recycled content.

Just the opposite.  WallNet’s mesh material will not foster mold or fungus growth, and using WallNet helps prevent the moist conditions in the cavity mold and fungus need.

No.

WallNet will last for the life of the building.

WallNet is highly UV resistant as well as resistant to normal field temperatures, so it can be stored at a job site and exposed to sunlight during building construction for extended periods without damage.

WallNet meets Federal Flammability Standard 191A, which requires that a horizontally placed specimen will not burn faster than 4”/minute.

Yes, just tuckpoint the head joint above the WeepVent.

Yes, WeepVent can be used with cut stone, natural stone, and terra cotta.

Yes, WeepVent comes in 6 sizes.

Yes, WeepVent are available in metric dimensions.

No, WeepVent is UV stable.

There will be no adverse effect to a silicone sealant.

Yes, cut the joints, remove the plastic tubes, and install WeepVent with a screwdriver by gently pushing them into the open head joint.

Yes, just tuckpoint the head joint above the CellVent.

Yes, CellVent can be used with cut stone, natural stone, and terra cotta.

Yes, CellVent comes in 2 sizes.

No, CellVent is UV stable.

There will be no adverse effect to a silicone sealant.