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MANUFACTURERS ond WHOLESATE DISTRIBUTORS

Fresno's Joe Aimqr Opens New Rerqil Lumberyord in Hqnford

Hanford, Calif.-Grand opening festivities rvere scheduled Novernber 2-3 for the neu, Aimar Lttmber Co. at 429 E. 5th St. here. Ou'ner-operator is Joe J. Aimar, a native of Fresno and past president of San Joaquin Valley FIoo-Hoo Club 31, who has n,orked his u'ay up in the lumber business.

Dealer Airnar gained his lirst ixperience as a lumber handler at the Alcao l-umber Co. in Fresno in 1946 rvhen he got out of the Nar')i. He remained at the yard after Diamond Nfatch Co. bought it out in 1951 and rose to the post of assistant managei tl.rere. After a brief period r,vith the N{erner Lumber Co. in Palo Alto. he left thc-vard :rnd u'ent to Hanford in 1953 rvhen Dianrc,nd Nlatch- bought the Hayu'ard Lumber Co. r'ard ancl offered him the rnanagership.

Aimar's ori'n vard n'il1 feature a complete line of general lruilding supplies including lrrmber, plyn-ood, harclrvare, paints and roofing. He lives rvith his 'nl,ife Janice and their irvo children at 79O Grant St.

NBMDA Elects Dick Freemon Treqsurer

Richard E,. Freeman of So-Cal Building N{aterials Co., Inc., Los Angeles, u'as elected treasurer of the National Building Nlaterial I)istributors Association at the annual convention heitl at the Sheraton hotel in Chicago, November 11 and 12. Over 500 pcrsons attencled this meeting, rr'ith brrilding material distributors f.rom 42 states present, rvhich s'ill lre reDorte(l in the next issue.

NBMDA represents approxirnately 475 ir-rdepenclent u.holesaling u'arehottses of building materials in :12 st:rtes and Car-radar, rvith :rnnual sales of approxinrately three cuarters of a billion dollars.

Dick Freemar-r has been a tlember ofNBMDA frtr four vears and has been active in the afiairs of the association .since joining this national group.

Rondom qnd Short Length Used for Wood Roof Decking

Random and short iength boards have been used sttccessfully for r'voocl roof decking in recent tests at trvo laboratorles.

Span arrangements that performed successfully under severe load tests n'ere described by l'. A. Wedding, professor of civil engineering, IJniversity of Maryland, at a recent nreeting of the National Established Roofing, Siding ancl Insulation Contractors Association, fnc., at Atlantic Citl-.

"The use of random length planks presents many possibilities for economy in plank and beam construciion," Wedding said. "Better utilization of material is obtained, random length material is less expensive than material ordered in specified lengths, and waste is practically eliminated."

Random iengths of center- and end-matched boards, includirrg short lengths unsupported by purlins or rafters, n ere employed effectively in studies at the Commercial Testing Laboratories, Denver, Wedding said. Similarly successful span arrangements of random ancl short lengths have been l'orke<l out at the Oregon Forest Products Laboratory, Corvallis, he adcled.

Strength, insulation value, fire resistance, economy and pleasing appearance contribute to the usefulness of wood as a roof-decking material, Wedding declared.

"Consideration of the strength-rveight ratio of lvood, together u'ith its high insulating properties, makes possible certain economies rvhere additional insulating materials u.oulcl otherrvise be required," he stated. "Iu many cases, no other insulating material is needed on the roof. It is significant that built-up roofing rin metzrl decks is normally bonded only rvhen at least one incl-r of an approved insul:rtion is inst:rlled betrveen deck and roofing, a restriction not applied to a r'r'oocl roof deck. Plaster ceilings often specified ir-r orcler to provide additional insulation its u'ell as a finishecl surface may ctuite often be clisper.rsecl s'ith since the natural hnish of the unclcrsidc of a rrlo,rd rlecli possesses a highly acceptalrle appearance lvithlittie treatnrent."

The fire-resistive qualities of heavy timber construction, rr.hiclr inclucles roof decking ,tf 2" r-rominal thickness, is indirectly recognized in the rctluircment that steel beams, girclers and trusses usecl in place clf u'ood rnembers have a fire rittiirg of not less than otre ltour, the er-rgineer said.

"No building is completely fireproof," \\/edding pointed out. "Masonrv u'alls ma1' spall, crack and collapse; reinforced .,,nc.eie structurai men.rbers may be severely damaged by frre ; strtrctttral steel rapiclly loses its strength ttnder high tempera.turcs. All of these t'n:rterials are fireproof onlv inlhe sense that thev:rre not consumed in the flarnes. Sincer thcintegrity of a structure deper.rcls upon tl.re structrrr:rl membcrs retaining their design strcngth ancl dirnensions runder :r11 conclitions, it may lte seer-r that l.rtr strrtcture, in thc strict sense of the n.ord, is fircpr<tof."

He:Lr'). timbcr construction is firc resistltnt principally because of the lou' conductivitr. of u'ood and the lorv ratitr of exposcd area to volume, \\rcdding saicl.

Wood eliminates the adclitional expense of ccilings, and the rrnderside of a roof deck rvith its accotnpanving structure presents ar-r esthetically satisff ir.rg rratttr:tl appearancc, he acldecl.

The speaker declared that natural growth features are often quite desirable and the sheathing or decking may be carefully selected to emphasize streaks, swirls, or knots.

"Ordinarilv a ltnot is considerecl to be a'defcct'but can it be so consldered in this case?" Wedding suggested. "On thc contrary, the absence of knots n'ould Lic a 'clefect'."

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