Date: 2/25/19

Re: Stone Substitution Request for Larimer County Satellite Maintenance Shops (2

Projects)

To Whom It May Concern:

We have reviewed the specifications given by Coronado Stone for their manufactured

stone veneer. The following charts show how Quality Stone Veneer compares to the

Specified product Coronado Stone:

Standard Coronado Stone Quality Stone Veneer

Manufacturer

Experience 50 years

30 years

www.qualitystoneveneer.com

Organizational

Membership

Masonry Veneer

Manufacturers Association

National Association of

Home Builders (NAHB) &

American Society for Testing

& Materials (ASTM)

LEED Information -- Manufacturing plants located

in Lancaster, PA, Tower City,

PA, and Denver, CO

Warranty 50 years on product to

original purchaser

50 years on product; 1 year

on installation to original

purchaser

Freeze-Thaw Durability ASTM C67 with less than

3% weight loss ASTM C666 with less than

3% weight loss

Compressive Strength

All Cast Veneer Stone

units exceed ASTM C39

and C192 with minimum

of 1800 psi.

All Cast Veneer Stone units

exceed ASTM C39 and C192

with minimum of 1800 psi.

Sheer Bond (Adhesion) ASTM C482 with

minimum of 50 psi. ASTM C482 with minimum

of 50 psi.

ICC-ES Strength &

Durability Tested

Meets or exceeds

Report # ESR-2598 Meets or exceeds Report #

ESR-3151

Water Absorption -- 15.1% when tested in

accordance with ASTM C127

Thermal Resistance: ASTM C177-71

R factor = 0.355/inch ASTM C518-91

R factor = 1.148

Fire Hazard Test: UL 723 UL 723

Density less than 15 pounds per

square foot 8 - 12 pounds per square foot

Rev. 2013

Quality Stone Veneer Inc. has been manufacturing stone since 1989 and installing stone

since 1976. We were active members of the Masonry Veneer Manufacturer’s

Association (MVMA) until it was disbanded in 2012. During our tenure with the

organization, our employees took instrumental leadership roles in writing the industry

standards and recommendations for installed adhered masonry concrete veneer.

Thank you for your assistance; we believe we can supply a superior product in both

believability and structural integrity at a lower cost by making this substitution. Please let

us know if you need anything else to submit this request. Further information and catalog

details can be found on our website www.qualitystoneveneer.com or by contacting our

Marketing Department for architectural presentation information.

Sincerely,

Derek Longenbach

Account Executive

Colorado Commercial Division

9777 US-85, Littleton, CO 80125

Requested manufacturer for substitution is acceptable. However, be sure toreview the actual proposed stone manufacturer in specification. Thisdocument is basing their review on "Coronado Stone" and the specification iscalling out for "Colorado Stone Company" and is not the same.

The stone is to match ashlar pattern, shapes and color as per the attachedphotograph.