Petrarch

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Contents 1 Material analysis 1.1 Traditional uses 1.2 Finish and aesthetic qualities 1.3 Surface forms / shapes 1.4 Cost analysis 2 Material properties 2.1 Primary structural use 2.2 Material performance 2.3 Dimensional and opening restriction 2.4 Acoustic property 2.5 Manufacturing process and assembly 3 Environment and Life Safety 3.1 Environmental impact 3.2 Flammability rating 4 References 4.1 Notes 4.2 Student contributions 5 See also 5.1 Similar materials 5.2 Building references 6 External links 6.1 Leading manufacturers

Material analysis

MasterFormat Number: 00 00 00

Traditional uses

• Interior and exterior wall panel applications
• Areas typically effected by vandalism and graffiti
• Store fronts
• Facade cladding and soffits
• Signage backgrounds
• Exhibition displays

Finish and aesthetic qualities

• Homogeneous through color
• Colors and texturs appear natural
• Low maintenance finish
• 16 standard colors and 4 standard textures available
• Custom colors and textures also available

Surface forms / shapes

• Surface similar to natural stone with varying texuture, thickness and groves.

Cost analysis

• Cost effective alternative to slate or natural stone
• $15/SqFt, plus shipping costs

Material properties

Primary structural use

• Non structural
• May be back or face fastened to pre-fabricated steel or wood frame walls

Material performance

• high impact resistant surface
• low moisture absorption
• low maintenance in exterior & interior uses
• test prove life expectancy over 30 years
• apparent porosity of 1%, resistant mold growth and immune to insects
• very resistant to weather extremes and pollution
• test results confirm natural exposure to weather does not change the durability or performance of material
• will not delaminate or decay

Dimensional and opening restriction

• panel thickness = 5/16", weighing 3.2lbs/SF
• panel thickness = 7/16", weighing 4.5lbs/SF
• stock size = 47 3/4" x 95 3/4" or 47 3/4" x 119 3/4"

Acoustic property

• Little to no acoustical dampening

Manufacturing process and assembly

• Natural slate and stone fibers are mixed together into resin binder along with chopped reinforced fiberglass strands, to form a composite sheet
• Panels are fabricated in the factory before being sent out:

   1. they are cut into specialty or standard sized sheets
   2. pre-drilled for fastener holes
   3. cut into specialty shapes
   4. edges are polished, beveled or mitered
   5. insulation materials are bonded to the panels

Environment and Life Safety

Environmental impact

Petrarch products may receive the following credits from the LEED rating system: MR Credit 2.1 and 2.2: Construction Waste Management

   Minimum packaging primarily recycled cardboard and wood
   Factory cut panels, reduces leftover waste at installation site

MR Credit 3.1 and 3.2: Materials Reuse: 5% or 10%

   Because of the long life of the product may be transferred and reused at   
      other sites
   May also be cut on-site and reused in a new size

EQ Credit 3.1 and 3.2: Construction IAQ Plans

   The panels do not need to be finished on the job site (eg primed or painted)
   

EQ Credit 4.1: Low-Emitting Materials, Adhesives and Solvents

   VOC content 0 g/l at installation site. VOC content 6% at manufacture site.

EQ Credit 11: Low Impact Cleaning and Maintenance Equipment Policy (LEED for schools)

   May be cleaned with soap and water. Low maintenance material.

Flammability rating

• Class A fire rating
• ASTM E84-81 Tunnel Test result show flame spread of 15 and

fuel contribution of 0.

References

Notes

Student contributions

• Amy Tufts, Spring 2009

See also

Similar materials

• Stoneflex
• 3form

Building references

• Roxbury, MA Post Office

External links

Leading manufacturers

• CEP Panels Inc. website