Installation Instructions

MATERIAL REQUIREMENTS

FASTENERS

Corrosion resistant fasteners (staples, screws or nails) must be used to secure ashing and lath. For wood

framing, corrosion resistant staples, nails or screws/washers may be used and must penetrate a minimum

of ¾” into framing members. For metal framing or panels, corrosion resistant, self-tapping screws may

be used and must penetrate ⅜” through metal stud or panel with heads or washers large enough to not

prevent pulling through lath. Spacing of fasteners is recommended to be a maximum of 6” vertical and

should be 16”-24” horizontal on the studs.

For Masonry walls or panels, corrosion resistant concrete screws or powder actuated fasteners

(or cap fasteners), may be used with heads or washers large enough to prevent pulling through lath.

MORTAR

Any of the following mixes may be used:

1. Mix 1:

• 1 part Portland cement

• 1 part lime

• 4.5 parts sand

• Potable water

2. Mix 2

• 1 part type S Masonry cement

• 2.25 parts sand

• Potable water

3. Mix 3

• 1 part type N Masonry cement

• 2.25 parts sand

• Potable water

4. Premix Mortar

• Premixed mortars must meet the requirements of ASTM C 270 for type N or type S.

Check with the mortar manufacturer to determine if the premixed mortar is suitable

for installation of manufactured stone veneer and it meets building code requirements

of 50 psi shear bond when tested in accordance with ASTM C 482.

Disclaimer: This installation guide follows published MVMA and IAPMO specications.

Check your state building guidelines and codes for additional installation information.