Surface Preparation

PLACING OVER PANELING, PLYWOOD, SHEETROCK, AND OTHER RELATED RIGID SHEATHING*

Completely cover the wall using a weather resistive barrier, such as a Knit paper. The Kraft paper should be placed horizontally and lapped single roof style at using 4" joints. If vertical joints should occur, joints should be lapped not less than 6". Then in accordance with local building codes, a galvanized diamond mesh expanded metal lath shall be applied. The metal lath sides should overlap not less than 3/8" and end by 1". On all inside and outside corners double wrap lath a minimum of 16". Hang metal lath by using galvanized nails or staples 6" on center vertically and 16" on center horizontally, penetrating studs by a minimum of 1". Then apply a 1/2" thick scratch coat of mortar and allow drying.

* The use of OSB as a backing material for our stone may cause cracking.

PLACING OVER OPEN STUDS

Using a paperbacked galvanized metal lath, lap and install using galvanized nails or staples, penetrating studs a minimum of I". In use of metal studs use a non-corrosive self tapping screw. The screws should have a 3/8" head and penetrates a minimum 3/8" beyond inside metal surface. Then apply 1/2" scratch coat of mortar and let dry.

Placing over clean unsealed, untreated, unpainted, block, brick, and other concrete or masonry surfaces

No surface preparation needed. Make sure newly poured concrete is free of release agents, if it does contain form oil, etch surface with Muratic acid, rinse thoroughly.

PLACED OVER PAINTED, OR SEALED CONCRETE OR MASONRY SURFACES

The surface must be prepared by sandblasting, acid etching, water blasting, or scrubbing with a wire brush. Or galvanized metal lath must be attached using non-corrosive nails and a scratch coat of mortar applied over the metal lath.

PLACING OVER RIGID INSULATION BOARD

The preparation is the same as it is in placing it over paneling, plywood, sheetrock, and other related rigid sheathing

PLACING OVER METAL PANELS

The preparation is the same as placing over paneling, plywood, sheetrock, and other related rigid sheathing with the exception of attaching the metal lath with a self taping 3/8" screw. The screws shall penetrate a minimum of 3/8" inside metal surface.

Estimating Materials for Manufactured Stone Installation

Installation Instructions

Boxed Footage

Rogue River Stone

(541) 476-4448

P.O. Box 430, Grants Pass, Oregon, USA 97528-0035

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