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Treated cedar shingles &
THE AVAILABILITY of fi re-treated I cedar shakes and shingles. fnst tested by Underwriters Laboratories nearly 20 years ago, continues to open up vurst new design oppornrnities for architects and builders throughout the United States, as well as sales for dealers.
This is particularly significant in areas where cedar roofs have long reigned as the outstanding choice for residential and low-rise commercial construction. UL approval, which came after l0 yean of testing, enables the use of cedar on residential and/or commercial buildings which - because of size, location, or occupancy -- are mandated by local building codes to have a Class B or C fire-retardant roof.
The Underwriters' test. known as UL-790, is recognized by the International Conference of Building Officials as UBC Standard 32-7. All Red Cedar Shingle & Handsplit Shake Bureau member pressure-Eeaters meet the requiremens of UBC Standard 32-7.
Virgil G. Petenon. manager of the bureau. trade association for the industry, explains, "The only shakes or shingles which meet UL requirements are bundle-impregnated by pressure processes. At this time the bureau is not aware of any paint-on or spftly-on fire retardants that are permanent and not subject to re-application."
"Weather-exposed sections of cedar shakes and shingles underwent a rigor- ous and unprecedented series of tests by Underwriten l:boratories at intenvals of one. two. three, five and ten yean, after which the product was deemed permanent." he continued. 'The permanence of the ueaunent later was confinned by the U.S. Forest Producs kboratory after a decade of rigorous testing. Moreover. the inherent benefis of this natural product - beauty, durability. suengh and texture - have not been adverselv affected bv the ueatment."
Story at a Glance
Capability of satisfyrng lirc rctardant rcof standalds makes shingles and shal<es good seF lers...architectural adaptability and design qualities ate added bene-fits...support lor dealers available from assoclation.
Commenting on the cost of the ueated product, Peterson said: "Several yean ago treating nearly doubled the price on shakes and shingles. However, irrreased competition and advancernents in technology among ueating companies have reduced coss approximately 5O9c.
For funher infornation on either treated or natwal shingles and slakcs, contact: Red Cedar Shingle & Handsplit Slwke Bureau, 515 II6th Avenue, N.E., Suite 275, Bellevae, WA 9&Ol: (206) 453-1323.-ed.
Can Satisfy Firc Codes
Architects, builders and applicators indicate to us that the expenditure is not significant when considering total construction costs -- particularly since it involves a premium quality roofing material."
Shingle cladding can integrate both residential and commercial projects into
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uont the highcst quolitg ovoiloble in CCR TVpe C Pressure Treoted lumber, coll sensitive sites. Pressure treated fire retardant shingles capable of achieving the fire code roof requirements make the designs possible. Cedar shingles are perfect for unifying projects with environmental harmony and minimizing future maintenance requirements.

Highcst Ouolitg Possible ot Competitivo Pricing
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[Uo con fill oll vour treoted lumber needs. . . londscop@ timbers, pfyurood, oll dimensionol lumbor, 4x4 throvgh 12x12. On 6x6 ond lorger ule hove longths ronging up to 45 feet. Plus, uJ@ nou, corrv in stock.60 FDN. UJe olso hove our own fle,at of trucks to help gou solve ong delivery probl@ms Vou mog hove. Rll our moteriol is TPI grode morked. We feoture the Rl.lJPB quolitg mork on oll our treoted moteriol.