Mankato-Kasota Stone

Mankato-Kasota Stone

ErthCOVERINGS Product Guide Specification

SECTION 097510


Specifier Notes: Edit the following as required.



A. Natural thin veneer stone for interior vertical and horizontal surfaces.


A. Section [01400 - Quality Control] [01410 - Testing Laboratory Services]: Testing laboratory services.

B. Section 05 40 00 – Cold-Formed Metal Framing: Formed steel-framed supporting walls.

C. Section 05 50 00 – Metal Fabrications: Galvanized shelf angles, structural supports, anchors and other built-in components for building into natural thin veneer stone.

D.Section 06 11 00 – Wood Framing: Wood frame supporting walls.

J. Section [0512 00 - Structural Steel] [0550 00 - Metal Fabrications]: Masonry anchors and shelf angles.

M. Section 0975 00 – Stone Facing.


A.ACI 530.1/ASCE 6/TMS 602 – Specifications for Masonry Structures.

B.ANSI A118.4 – Specifications for Latex-Portland Cement Mortar.


A.Comply with Section 01 33 00 – Submittal Procedures.

B.Product Data: Submit manufacturer's product data on stone and polymer-modified mortar products, including:

1.Surface preparation and installation instructions.

2.Storage and handling instructions.

3. Cleaning, care and maintenance.

C.Shop Drawings: Submit manufacturer’s shop drawings, including plans, elevations, sections, and details, indicating layout, dimensions, anchorages, and jointing methods.

D.Selection Samples: Submit mortar color samples.

E.Verification Samples: Submit 2 manufacturer’s full-size samples of natural thin veneer stone for each pattern specified.

F.Warranty: Submit ErthCOVERING’s standard limited lifetime product warranty for natural thin veneer stone.


A.Manufacturer’s Qualifications: Manufacturer regularly engaged, for preceding 10 years, in manufacture of natural thin veneer stone of similar type to that specified.

B. Stone Installer Qualifications: Company specializing in performing Work of this section with minimum 5 years documented experience.

C.Mock-Ups: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.

1.Finish areas designated by Architect.

2.Do not proceed with remaining work until workmanship, color, and pattern are approved by Architect.

3.Refinish mock-up area as required to produce acceptable work.


A.Delivery: Deliver materials to site in manufacturer’s original, unopened containers and packaging, with labels clearly identifying product name and manufacturer.


1.Store materials in accordance with manufacturer’s instructions.

2.Store materials in manufacturer's unopened packaging until ready for installation.

3.Store stone materials on pallets on dry, level surface and cover with tarps.

4.Do not stack pallets.

5.Mortar: Store mortar under cover in area where air temperature is maintained between 4 degrees C (40 degrees F) and 43 degrees C (110 degrees F).

C.Handling: Protect materials during handling and installation to prevent damage or contamination.


A.Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install natural thin veneer stone under environmental conditions outside manufacturer's limits.

B.Hot and Cold Weather Requirements: In accordance with ACI 530.1/ASCE 6/TMS 602.

C.Air Temperature: 4 degrees C (40 degrees F) or above during installation of natural thin veneer stone.



A. Acceptable Manufacturer: ErthCOVERINGS – a division of Erth Inc, 10 Westcreek Drive, Unit 19, Woodbridge, Ontario, Canada, L4L 9R5. Tel: 905-265-8565; Fax: 416-352-5147; Email: ;


A. ErthCOVERINGS Natural Thin Veneer Stone:

1, Styles: [3D Series] [Ledgestone Series] [Rough Break Series] [ILPM Series] [Lavastone Series] [Aztec Strips Series] [Pebble Series] [Cedarstone Series].

2. Colours: [Sydney Yellow] [Springwood Black] [Outback Brown] [Cream Quartzite] [Kakadu Green] [Basalt Honed] [Basalt Flamed] [Durango] [Amarillo] [Bluestone] [Coral White] [Cedarstone] [Ivory Blend] [Charcoal] [Bone].


A. Interior Walls and Floors:

1. Chembond Magniflex Super 8820 or Mapei Ultraflex 2 or similar.


A. Grout for Stone Facing: Provide in accordance with Section 040710.

B. Grout for Stone Flooring: Provide in accordance with Section 040710.

C. Color admixture:



A.Examine surfaces to receive natural thin veneer stone.

B.Notify Architect of conditions that would adversely affect installation.

C.Do not begin surface preparation or installation until unacceptable conditions are corrected.

D.Do not begin installation until backing structure is plumb, bearing surfaces are level, and substrates are clean and properly prepared.


A.Prepare surfaces in accordance with manufacturer’s instructions.

B.Clean surfaces thoroughly before installation.

C.Prepare surfaces using methods for achieving best results for substrate under project conditions.

D.Prepare for Installation:

1.Interior walls up to a height of 3000 mm (10 Feet):

a. Install over Gypsum Wallboard (Primed)

b. Install over Gypsum Plaster (Primed)

c. Install over Exterior Grade Plywood, Group 1, CC-type

d. Install over Cement Board

2.Interior walls over 3000 mm (10 Feet):

a. Install over Cement Board

E.Prepare for Installation of Thin Veneer Stone:

1.Cleaning: Clean built-in items of loose rust, ice, mud, and other foreign matter before incorporating into wall.

2.Temporary Bracing:

a.Provide temporary bracing as required during installation of thin veneer stone.

b.Maintain bracing in place until the thin set mortar has set firm (typically 24 hours at 21 degrees C (70 degrees F)).


A.Install thin veneer stone and mortar in accordance with manufacturer’s instructions and ACI 530.1/ASCE 6/TMS 602.

B.Pattern Bond:

1.Lay out work in advance and distribute color range of stone uniformly over total work area.

2.Lay stone with face exposed.

3.Take care to avoid concentration of any 1 color to any 1 wall surface.

4.Do not use stacked vertical joints.

C.Placing and Bonding:

1.Apply the thin bed mortar to the substrate with scraping motion, using flat side of the notched trowel. Work the thin bed mortar into good contact with substrate. A trowel with notches large enough to ensure full thin bed mortar coverage to the backs of the stone panels is required. Back-butter each stone panel with a thin layer of thin bed mortar, applied in one direction.

2. Firmly press stone panels into the fresh thin bed mortar and move them perpendicularly across the ridges to flatten and compress the ridges. This helps to produce maximum coverage to the backs of the stone panels. Do not apply more thin bed mortar than can be covered within 10-15 minutes, or while thin bed mortar is still workable. Periodically remove and check stone panels to verify full thin bed mortar coverage is being achieved to backs of the panels.

  1. Allow stone panel installations to set for 24 hours at 21 degrees C (70 degrees F). Excess

thin bed mortar must be cleaned from the surface of the stone with a clean, wet cloth sponge, while it is still fresh. Stone must be supported until the thin bed mortar has set firm – typically 24 hours at 21 degrees C (70 degrees F).


A. Remove excess mortar [and sealant] upon completion of work.

B. Clean soiled surfaces with cleaning solution.

C. Use non-metallic tools in cleaning operations.


A.Protect installed natural thin veneer stone to ensure that, except for normal weathering, stone will be without damage or deterioration at time of Substantial Completion.

B.Touch-up, repair, or replace damaged stone before Substantial Completion.


ErthCOVERINGS Natural Thin Veneer Stone 09 75 10 - 1 -