Kirei

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Material analysis

MasterFormat Number: 09 60 00

Kirei Board

Traditional uses

Furniture
Cabinetry
Casework
Flooring
Wallcoverings

Emerging uses / trends

Retail displays
Ceiling treatments
Countertops
This material is being explored for use as a bio-fuel

Finish and aesthetic qualities

Dramatic grain
Smooth surface, textured appearance
Can be painted and varnished like most woods with water, oil or urethane based products
Board edges can be banded like traditional composite woods

Surface forms / shapes

This composite panel board can be used in similar ways to MDF and bamboo
Manufacturer can cut, drill, rout to desired shape or form
Boards can be compressed into thin sheets for flexibility

Cost analysis

10mm thick, 36" x 72", $199.99
20mm thick, 36" x 72", $259.90
30mm thick, 36" x 72", $309.90

Material properties

Primary structural use

Not rated as structural panel for exterior applications
Can be used for horizontal weight-bearing spans, much like plywood of similar thickness
Density:

    6mm  38.1 lbs/ft3
    10mm 32.1 lbs/ft3
    20mm 29.6 lbs/ft3
    30mm 25.4 lbs/ft3

Material performance

Strong
Lightweight
Resists warping
Not recommeded for high-traffic areas
Porous if left untreated

Dimensional and opening restriction

Typical boards: 6mm thick, 36"x72", 9.4 lbs
Typical boards: 10mm thick, 36"x72", 19.4 lbs
Typical boards: 20mm thick, 36"x72", 35.1 lbs
Typical boards: 30mm thick, 36"x72", 43.2 lbs

Manufacturing process and assembly

Material is assemblied by collecting sorghum straw by-products, cleaning and weaving them, then combining with poplar wood and compressing the materials into boards with adhesive.
Manufactured according to standard wood prodecut fabricating techniques
Heat pressed
Non toxic adhesive used
Drilled
Routed
Filled
Fastened into desired product

Environment and Life Safety

Environmental impact

Kirei board reduces forest clear cutting, air pollution and landfill use. The sorghum stalks used in the manufacturing process of Kirei boards are a rapidly renewable resource which remains after the edible portion of the plant is harvested. Until now, these stalks have been discarded or burned, adding to landfill waste and pollution. Therefore, Kirei board production, reduces this waste and eases deforestation as it acts as a substitute for wood. In addition, the production process uses non-toxic adhesives with no added urea formaldehyde. ^[1]

This product can earn up to 4 credits for LEED certification. Two credits can be earned for 90% post-industrial material, 1 credit for urea-formaldehyde free adhesive (this product contains no VOCs), and 1 credit for using a material with a growth cycle of under 10 years.

One issue with sorghum straw is the possibililty of lethal levels of cyanide and nitrates for grazing animals; this does not apply to the finished product.

Flammability rating

Class "C" fire rating, but may reach class "A" if treated.
Auto Ignition point exceeds 200 degrees Fahrenheit
Conditions of Flammability: open flame
Special fire fighting procedures: cool boards with water spray
Means of extinction: water, foam, carbon dioxide

References

Notes

↑ http://www.kireiusa.com/main.php

Student contributions

Shalini Sookar, Spring 2008
Sarah Niland, Spring 2010

External links

Additional resources

Leading manufacturers

Kirei USA

[_note-0] ttp://www.kireiusa.com/main.php

[1]