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<br />TECiUN1 T'Rl� �►�1D P�.�ANK
<br />��9+t�Mli F40tN1 S�PECIFICAtIC�N
<br />"fhe roof deck shall be nancombustible
<br />witk� � structural strength capable of
<br />supporting a uniform load nf 2Q0 lbs.
<br />Q.s.f. for spans indicuted. Thc thernial
<br />: -�nsulation of the deck assembly shal!
<br />have a„U„ value, air-ta-air, of .............
<br />and ihe weight of the d�c� n�aterial
<br />sttail be approximately............lbs, psf.
<br />lt shall be tor�gue and grocaved on all
<br />tinsupported edges, except speciai
<br />tcngth tile shali be square cut on the
<br />�nds. The caof deck shalt have a fac-
<br />Gary app{ied asphal� rnafing felt an the
<br />, top side.
<br />�C�A1�3 Rt��M S�ECIFtCATiON
<br />�i , �CC�E. The work �overed hy this
<br />sectian of tht specification cunsists of
<br />furnishing labor, equipment, and ma-
<br />terials for instn[lation of T�ectum roof
<br />decking in accrjrdance with the spe�i-
<br />ficatians, dr�win�s, and terms �nd con-
<br />ditians of the contract.
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<br />Ct3. N1�1T�RIALS: a. Tectum structural
<br />insulating roof plank and roof tilc shall
<br />conxist n� wocxi fibers and a reactive,
<br />inorganic, insotuble hydraulic cement
<br />hinder molded under controlled con-
<br />ditiQna of heat and pressure.
<br />b. The units sh�ll bc tongue und
<br />grcmved 3/a " deep on the two parAllcl
<br />unyupported edges, except special
<br />tength tile shall be syuarc cut on the
<br />ends. Thc supported ends of the roof
<br />plank shUll he sq uare cut. The sup-
<br />ported edgcs of thc roof tile shall bc
<br />rabbcted y4 inch.
<br />c, The unita shall t� noncambustible
<br />in accordancc with Federal Specifica-
<br />tion SS-A-II�b And standards
<br />estahlished by the NatianAl Board of
<br />Fire Undecwriters. (Special Interest
<br />Bulletin No. 294.)
<br />s�. "l�he units shaii bc ca�a�ila of sup-
<br />port�ng� over th� spans recommended
<br />by thc manufacturer, applied load
<br />cquival�nt ta 200 pounds per 3qu�re
<br />foot uniformly distr�buted. The tcst
<br />pro�e8ure to bc in ac�ordance with
<br />Fe�enl Speci�ication SS-S-439.
<br />•. The unitav in combination with ap-
<br />pr�ovccl built-up roofing shal! have a
<br />,.U" valuc of :
<br />l�" . . . . . , . .0,22 Btu./sq. ft,/der, F./h►.
<br />t" .. ......�D.20 84u./iq. tt./deQ. F,/hr.
<br />z�,N ' , , , , , , . .o.i� et�.��a. t�.iaoi. v.; n�,
<br />� , , , , . , , , . , 0.15 Btu./�q. tt./dt`. i'./h�.
<br />— �'LGTIJM R00�' llFCK
<br />?, The units sh�ll have an average no�se
<br />reduction cc�efiicient of .55 ta .65 for
<br />13l0 ", .6U to .7(� for 2", .65 to .75 fnr
<br />?!'z ", and .7� to .fl5 for 3".
<br />g. The upper surface of the unit sha)i
<br />havc a f�ctory appiied asphaltic fclt.
<br />h. The 'units shall have a nominal
<br />weight per �c{uare foot of :
<br />ta%�� .........................4.bq Ibs.
<br />2" ...........................4.251bs.
<br />1�h" . . . . . . . . . . . . . . . . . . . . 5.25 IDs.
<br />3-� . . . . . . . . . . . . . . . . . . : : : : :e.a5 ia:.
<br />i. Sub-purtins for raof tilcs or plank
<br />shall be of adequate size tra suppc�rt the
<br />raof desi�n loads. "fhey shall be of s�zes
<br />indicated on the Jrawings or appraved
<br />by the architect or engineer,
<br />(. The roof plank shail be anchored by
<br />galvaniz�d clips nr large head galvan-
<br />iz�d cork insulation naiis to providc a
<br />minimum r�sistance af' 30 pounds per
<br />squr�re foat to uplift. Clips shall be of
<br />approved design, and nail5 shall t,e at
<br />least 1 inch I�nger than the thickness
<br />of the roof plank,
<br />�c. Grout for anchoring r�f tites shall
<br />provide a minimum resistance of 30
<br />pounds per square foot to uplift and
<br />shall be an insulating type c�mposed
<br />af perlit�, Portland cement xnd water
<br />in the ratio of 4 cubic feet of perlite to
<br />1 ciibic foot of P�rtland cement.
<br />Structolite, n premixed insulating grout
<br />material may be. used. All grouting ma-
<br />teria{s shou(d be mixed w�th sufficient
<br />wutcr to produce a pouring consistency.
<br />03. INSTALLATION: a. Roof plank ar
<br />roof �ile shalt be cut to Ht neatly at
<br />walls, parapets, curbs or other open-
<br />ings. Auxiliary framing shall be pro-
<br />vided to suppo�t the units arouncl
<br />projectia�s greater than 8 inches in
<br />diameter or ar��und openings greater
<br />than 8 inches in any dimcnsion.
<br />b. Roof ptank shall be iAi�i directly on
<br />�.irlins oc sub-purlins with square cut
<br />ends butted tighcly �:��d falling on center
<br />lines of suppurting members. The sup-
<br />portcd ends in ad�acent rows sh�ll be
<br />st�►ggersd. The unsupparteci tongue and
<br />groav� edges shall be tightly nested.
<br />Clips or nails sha�l bc installed �t each
<br />supporting member as lhe work pru-
<br />gressts.
<br />�, Roof tile shall be evenly spaced t�e-
<br />twcen bulb-tGes with the rabbeted edge
<br />su�ported on the bottosn flan�e, The
<br />thtckness of the roof tile shnll be suffi-
<br />cient to provida A minimum uf �,fe"
<br />covet over the hulb•ter +� hcn the joint
<br />is grauted flush with the top surface of
<br />the roof tiles. The unsupported tangue
<br />�nd grclove enris af 48" til+e shall he
<br />staggered !�2 length ir, adjacent rows
<br />and tightly neste�l. l�incs between the
<br />rabbeleci eclges of the tiles and the
<br />bulb-tees shall he grouted to providc
<br />anchorage as the wurk progres.r•rs.
<br />d. Sub-puriins shall be spaced arcu-
<br />rately w�ithin plus or minus 1/ 16" in
<br />accordance with the specifications or
<br />�S SI'iOw�i on the �irawirtgs and securely
<br />�ositione� by means of tempiates dur-
<br />ing welciing. They shaU be welded at
<br />every paint of' crossing over supporting
<br />framing membcrs w�ith a'/a" long fillet
<br />wcld on aiternate sides of the flange.
<br />exce��t at ends of suh-purlins when bath
<br />sides of the flange sh«I1 be welded. The
<br />ends of the sub-purlins shal! have a
<br />minimum hearing c7f I" on the sup-
<br />porting membcr.
<br />e. The �;rout shall comptetely fill the
<br />space between the supported e�lges of
<br />the roof tiies and tt�e bulb-tee. Afier
<br />the grout has taken its initia! sct, excess
<br />material shall be scraped off to form
<br />a finished jc�int flush with the tap sur-
<br />face of the roof tiles.
<br />f. The �►pplied uni�s shall be examined
<br />anci any �iefectivc roof plank or tile
<br />shall hc remuveJ and ceplaced, includ-
<br />ing all excess materials anei debris. Ex-
<br />cess grout.shall be rrmoved from the
<br />top surface of the finished work to
<br />provide a clean �ieck free from defects
<br />readv to receive the built-up rcx�fing.
<br />O4, PROI rCTION FROAA A`USE:
<br />c�. Adequate care shall he taker� in
<br />handling ynd storing �ll roof deck ma�
<br />terials to insure protection from dam-
<br />aged edges, soiled exposed surfaces and
<br />puncturing the felt membrane. A]t units
<br />in tr.insit an�i in storage shail be
<br />thoroughly protected from the weather
<br />until laid.
<br />b, All deck laid in a day shall be made
<br />wat�rtight at the completion of the
<br />day's work, hy applicatinn of the built-
<br />up �oofing, or, as a minimum, by
<br />stripping the joints t� makc thrm
<br />weathertight.
<br />OS. APP4ICAYIOOV OF DUILT-�1P
<br />1tOOFialG
<br />The built-up roofing over the deck
<br />shall be laid in sccurdance with th�
<br />built-up r�►ofing manufactur�r'�
<br />spccifications.
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