07 42 13.pdf

Ti nker AFB, OK TAFB Techni cal Spr ci f i cat i ons 2019

SECTI ON 07 42 13

METAL WALL PANELS

PART 1 GENERAL

1. 1 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

AMERI CAN ARCHI TECTURAL MANUFACTURERS ASSOCI ATI ON ( AAMA)

AAMA 501. 1 ( 2005) St andar d Test Met hod f or Wat er Penet r at i on of Wi ndows, Cur t ai n Wal l s and Door s Usi ng Dynami c Pr essur e

AAMA 800 ( 2010) Vol unt ar y Speci f i cat i ons and Test Met hods f or Seal ant s

AMERI CAN I NSTI TUTE OF STEEL CONSTRUCTI ON ( AI SC)

AI SC 341 ( 2010) Sei smi c Pr ovi s i ons f or St r uct ur al St eel Bui l di ngs

AMERI CAN I RON AND STEEL I NSTI TUTE ( AI SI )

AI SI S100 ( 2012) Nor t h Amer i can Speci f i cat i on f or t he Desi gn of Col d- For med St eel St r uct ur al Members

AI SI SG03- 3 ( 2002; Suppl 2001- 2004; R 2008) Col d- For med St eel Desi gn Manual Set

AMERI CAN SOCI ETY OF CI VI L ENGI NEERS ( ASCE)

ASCE 7 ( 2010; Er r at a 2011; Supp 1 2013) Mi ni mum Desi gn Loads f or Bui l di ngs and Ot her Structures

ASTM I NTERNATI ONAL ( ASTM)

ASTM A1008/ A1008M ( 2015) St andar d Speci f i cat i on f or St eel , Sheet , Col d- Rol l ed, Car bon, St r uct ur al , Hi gh- St r engt h Low- Al l oy and Hi gh- St r engt h Low- Al l oy wi t h I mpr oved For mabi l i t y , Sol ut i on Har dened, and Bake Har dened

ASTM A123/ A123M ( 2013) St andar d Speci f i cat i on f or Zi nc ( Hot - Di p Gal vani zed) Coat i ngs on I r on and St eel Pr oduct s

ASTM A36/ A36M ( 2014) St andar d Speci f i cat i on f or Car bon St r uct ur al St eel

ASTM A606/ A606M ( 2009a) St andar d Speci f i cat i on f or St eel

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Sheet and St r i p, Hi gh- St r engt h, Low- Al l oy, Hot - Rol l ed and Col d- Rol l ed, wi t h I mpr oved At mospher i c Cor r osi on Resi st ance

ASTM A653/ A653M ( 2015) St andar d Speci f i cat i on f or St eel Sheet , Zi nc- Coat ed ( Gal vani zed) or Zi nc- I r on Al l oy- Coat ed ( Gal vanneal ed) by t he Hot - Di p Pr ocess

ASTM A755/ A755M ( 2015) St andar d Speci f i cat i on f or St eel Sheet , Met al l i c Coat ed by t he Hot - Di p Pr ocess and Pr epai nt ed by t he Coi l - Coat i ng Pr ocess f or Ext er i or Exposed Bui l di ng Products

ASTM B117 ( 2011) St andar d Pr act i ce f or Oper at i ng Sal t Spr ay ( Fog) Appar at us

ASTM C920 ( 2014a) St andar d Speci f i cat i on f or El ast omer i c Joi nt Seal ant s

ASTM D1056 ( 2014) St andar d Speci f i cat i on f or Fl exi bl e Cel l ul ar Mat er i al s - Sponge or Expanded Rubber

ASTM D1308 ( 2013) Ef f ect of Househol d Chemi cal s on Cl ear and Pi gment ed Or gani c Fi ni shes

ASTM D1654 ( 2008) Eval uat i on of Pai nt ed or Coat ed Speci mens Subj ect ed t o Cor r osi ve Environments

ASTM D1667 ( 2005; R 2011) Fl exi bl e Cel l ul ar Mat er i al s

- Pol y ( Vi nyl Chl or i de) Foam ( Cl osed- Cel l )

ASTM D2244 ( 2015a) Cal cul at i on of Col or Tol er ances and Col or Di f f er ences f r om I nst r ument al l y Measur ed Col or Coor di nat es

ASTM D2247 ( 2015) Test i ng Wat er Resi st ance of Coat i ngs i n 100% Rel at i ve Humi di t y

ASTM D2794 ( 1993; R 2010) Resi st ance of Or gani c Coat i ngs t o t he Ef f ect s of Rapi d Def or mat i on ( I mpact )

ASTM D3359 ( 2009; E 2010; R 2010) Measur i ng Adhesi on by Tape Test

ASTM D3363 ( 2005; E 2011; R 2011; E 2012) Fi l m Har dness by Penci l Test

ASTM D4214 ( 2007; R 2015) St andar d Test Met hod f or Eval uat i ng t he Degr ee of Chal k i ng of Ext er i or Pai nt Fi l ms

ASTM D4587 ( 2011) St andar d Pr act i ce f or Fl uor escent UV- Condensat i on Exposur es of Pai nt and Rel at ed Coat i ngs

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ASTM D522/ D522M ( 2014) Mandr el Bend Test of At t ached Or gani c Coat i ngs

ASTM D523 ( 2014) St andar d Test Met hod f or Specul ar Gloss

ASTM D5894 ( 2010) Cycl i c Sal t Fog/ UV Exposur e of Pai nt ed Met al , ( Al t er nat i ng Exposur es i n a Fog/ Dr y Cabi net and a UV/ Condensat i on Cabinet)

ASTM D610 ( 2008; R 2012) Eval uat i ng Degr ee of Rust i ng on Pai nt ed St eel Sur f aces

ASTM D714 ( 2002; R 2009) Eval uat i ng Degr ee of Bl i st er i ng of Pai nt s

ASTM D822 ( 2001; R 2006) Fi l t er ed Open- Fl ame Car bon- Ar c Exposur es of Pai nt and Rel at ed Coatings

ASTM D968 ( 2015) Abr asi on Resi st ance of Or gani c Coat i ngs by Fal l i ng Abr asi ve

ASTM E1592 ( 2005; R 2012) St r uct ur al Per f or mance of Sheet Met al Roof and Si di ng Syst ems by Uni f or m St at i c Ai r Pr essur e Di f f er ence

ASTM E283 ( 2004; R 2012) Det er mi ni ng t he Rat e of Ai r Leakage Thr ough Ext er i or Wi ndows, Cur t ai n Wal l s, and Door s Under Speci f i ed Pr essur e Di f f er ences Acr oss t he Speci men

ASTM E331 ( 2000; R 2009) Wat er Penet r at i on of Ext er i or Wi ndows, Skyl i ght s, Door s, and Cur t ai n Wal l s by Uni f or m St at i c Ai r Pr essur e Di f f er ence

ASTM E72 ( 2015) Conduct i ng St r engt h Test s of Panel s f or Bui l di ng Const r uct i on

ASTM E84 ( 2015b) St andar d Test Met hod f or Sur f ace Bur ni ng Char act er i st i cs of Bui l di ng Materials

ASTM G152 ( 2013) Oper at i ng Open Fl ame Car bon Ar c Li ght Appar at us f or Exposur e of Nonmet al l i c Mat er i al s

ASTM G153 ( 2013) Oper at i ng Encl osed Car bon Ar c Li ght Appar at us f or Exposur e of Nonmet al l i c Materials

METAL BUI LDI NG MANUFACTURERS ASSOCI ATI ON ( MBMA)

MBMA MBSM ( 2002) Met al Bui l di ng Syst ems Manual

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NATI ONAL ASSOCI ATI ON OF ARCHI TECTURAL METAL MANUFACTURERS ( NAAMM)

NAAMM AMP 500 ( 2006) Met al Fi ni shes Manual

SHEET METAL AND AI R CONDI TI ONI NG CONTRACTORS' NATI ONAL ASSOCI ATI ON

(SMACNA)

SMACNA 1793 ( 2012) Ar chi t ect ur al Sheet Met al Manual , 7t h Edi t i on

U. S. GREEN BUI LDI NG COUNCI L ( USGBC)

LEED NC ( 2009) Leader shi p i n Ener gy and Envi r onment al Desi gn( t m) New Const r uct i on Rat i ng Syst em

UNDERWRI TERS LABORATORI ES ( UL)

UL Bl d Mat Di r ( 2012) Bui l di ng Mat er i al s Di r ect or y

1. 2 DEFINITIONS

Met al Wal l Panel : Met al wal l panel s, at t achment syst em component s and accessor i es necessar y f or a compl et e weat her - t i ght wal l syst em.

1. 3 DESCRI PTI ON OF WALL PANEL SYSTEM

Fact or y col or f i ni shed, met al wal l panel syst em wi t h conceal ed f ast eni ng at t achment . Panel pr of i l e must be as shown on dr awi ngs.

1. 3. 1 Met al Wal l Panel Gener al Per f or mance

Compl y wi t h per f or mance r equi r ement s, conf or mi ng t o AI SI S100, wi t hout f ai l ur e due t o def ect i ve manuf act ur e, f abr i cat i on, i nst al l at i on, or ot her def ect s i n const r uct i on. Wal l panel s and accessor y component s must conf or m t o t he f ol l owi ng st andar ds:

ASTM A1008/ A1008M

ASTM A123/ A123M

ASTM A36/ A36M

ASTM A653/ A653M

ASTM A606/ A606M

ASTM A755/ A755M f or met al l i c coat ed st eel sheet f or ext er i or coi l pr e- pai nt ed appl i cat i ons.

ASTM D522/ D522M f or appl i ed coat i ngs UL Bl d Mat Di r

1. 3. 2 St r uct ur al Per f or mance

Maxi mum cal cul at ed f i ber st r ess must not exceed t he al l owabl e val ue i n t he AI SI or AA manual s; a one t hi r d over st r ess f or wi nd i s al l owed. Mi dspan def l ect i on under maxi mum desi gn l oads i s l i mi t ed t o L/ 180. Cont r act dr awi ngs show t he desi gn wi nd l oads and t he ext ent and gener al assembl y det ai l s of t he met al s i di ng. Cont r act or must pr ovi de desi gn f or member s and connect i ons not shown on t he dr awi ngs. Si di ng panel s and accessor i es must be t he pr oduct s of t he same manuf act ur er .

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Pr ovi de met al wal l panel assembl i es compl yi ng wi t h t he l oad and st r ess r equi r ement s i n accor dance wi t h ASTM E1592. Wi nd Load f or ce due t o wi nd act i on gover ns t he desi gn f or panel s.

Wal l syst ems and at t achment s ar e t o r esi st t he wi nd l oads as det er mi ned by ASTM E72 and ASCE 7 i n t he geogr aphi c ar ea wher e t he const r uct i on wi l l t ake pl ace, i n pounds per squar e f oot . Submi t f i ve copi es of wi nd l oad t est s and sei smi c t est s t o t he Cont r act i ng Of f i cer .

Pr ovi de met al wal l panel assembl y f or sei smi c condi t i ons compl yi ng wi t h t he appl i cabl e r equi r ement s of AI SC 341.

1. 3. 3 Ai r I nf i l t r at i on

Ai r l eakage must conf or m t o t he l i mi t s t hr ough t he wal l assembl y ar ea when t est ed accor di ng t o ASTM E283.

1. 3. 4 Wat er Penet r at i on Under St at i c Pr essur e

No wat er penet r at i on when t est ed accor di ng t o ASTM E331.

1. 3. 5 Wat er Penet r at i on Under Dynami c Pr essur e

No evi dence of wat er l eakage when t est ed accor di ng t o AAMA 501. 1.

1. 4 SUBMITTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s not havi ng a " G" desi gnat i on ar e f or Cont r act or Qual i t y Cont r ol appr oval . Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00

SUBMI TTAL PROCEDURES:

SD- 01 Pr econst r uct i on Submi t t al s

Submi t Document at i on f or t he f ol l owi ng i t ems:

Qual i f i cat i on of Manuf act ur er ; G Qual i f i cat i on of I nst al l at i on Cont r act or ; G Qual i f i cat i on of Wel der s; G Sampl e War r ant y; G

SD- 02 Shop Dr awi ngs

I nst al l at i on Dr awi ngs; G

SD- 03 Pr oduct Dat a

Recycl ed Cont ent ; ( LEED NC)

Submi t Manuf act ur er ' s dat a i ndi cat i ng per cent age of r ecycl e mat er i al i n wal l panel s t o ver i f y sust ai nabl e acqui s i t i on compliance.

Submi t Manuf act ur er ' s cat al og dat a f or t he f ol l owi ng i t ems:

Wal l Panel s ; G

Fact or y Col or Fi ni sh

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Cl osur e Mat er i al s Pr essur e Sensi t i ve Tape Seal ant s and Caul ki ng Gal vani z i ng Repai r Pai nt Enamel Repai r Pai nt Al umi ni zed St eel Repai r Pai nt Accessories

SD- 04 Sampl es

Submi t as r equi r ed each of t he f ol l owi ng sampl es:

Wal l Panel s, 12 i nches l ong by act ual panel wi dt h; G Fast ener s; G Met al Cl osur e St r i ps, 10 i nches l ong of each t ype; G

Col or char t and chi ps ; G

Submi t manuf act ur er ' s col or char t s and chi ps, appr oxi mat el y 4 by 4 i nches, showi ng f ul l r ange of col or s, t ext ur es and pat t er ns avai l abl e f or wal l panel s wi t h f act or y appl i ed f i ni shes.

SD- 05 Desi gn Dat a

Wi nd l oad desi gn anal ysi s ; G

As appl i cabl e, submi t t he f ol l owi ng wi nd l oad desi gn anal ysi s dat a, t o i ncl ude, but not l i mi t ed t o:

wi nd speed exposur e cat egor y, co- ef f i c i ent , i mpor t ance f act or t ype of f aci l i t y negat i ve pr essur es f or each zone met hods and r equi r ement s of at t achment

SD- 06 Test Repor t s

Submi t t est r epor t s f or t he f ol l owi ng i n accor dance wi t h t he r ef er enced ar t i c l es i n t hi s sect i on.

Leakage Test s; G Wi nd Load Test s; G Coat i ng Test s; G Chal ki ng Test s; G Sei smi c Test s; G

SD- 07 Cer t i f i cat es

Submi t cer t i f i cat es f or t he f ol l owi ng i t ems showi ng conf or mance wi t h r ef er enced st andar ds cont ai ned i n t hi s sect i on:

Coi l St ock; G Fast ener s; G Gal vani z i ng Repai r Pai nt ; G Enamel Repai r Pai nt ; G

SD- 08 Manuf act ur er ' s I nst r uct i ons

I ncl ude det ai l ed appl i cat i on i nst r uct i ons and st andar d

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I nst al l at i on of Wal l panel s; G

SD- 09 Manuf act ur er ' s Fi el d Repor t s

Submi t __3___ bound copi es of t he Manuf act ur er ' s Fi el d Repor t s; G

SD- 11 Cl oseout Submi t t al s

War r ant y; G Mai nt enance I nst r uct i ons; G

20 year " No Dol l ar Li mi t " war r ant y f or l abor and mat er i al 1. 5

QUALI TY ASSURANCE

1. 5. 1 Pr e- I nst al l at i on Conf er ence

Upon not i f i cat i on of submi t t al r ecei pt and appr oval by t he Cont r act i ng Of f i cer ; and pr i or t o t he commencement of t he wor k, t he Cont r act or must at t end a pr e- i nst al l at i on conf er ence t o r evi ew t he f ol l owi ng:

a. Dr awi ngs and Speci f i cat i ons.

b. Qual i f i cat i on of I nst al l er .

c. Sust ai nabl e acqui s i t i on

d. Appr oved War r ant y

e. Sampl e wal l panel s, 12 i nches l ong by act ual panel wi dt h f . Sampl e met al c l osur e st r i ps, 10 i nches l ong of each t ype

g. Col or char t s and chi ps

h. Coat i ngs and base met al t est s, chal k i ng t est s i . Const r uct i on schedul e, avai l abi l i t y of mat er i al s, I nst al l er ' s per sonnel , equi pment and f aci l i t i es r equi r ed t o pr ogr ess wi t h t he wor k wi t hout del ay.

j . Met hods and pr ocedur es r el at ed t o i nst al l at i on of wal l panel s, i ncl udi ng manuf act ur er ' s wr i t t en i nst r uct i ons. Expl i c i t l y i dent i f y i n wr i t i ng, di f f er ences bet ween manuf act ur er ' s i nst r uct i ons and t he speci f i ed r equi r ement s.

k. Suppor t condi t i ons f or compl i ance wi t h r equi r ement s, i ncl udi ng al i gnment bet ween and at t achment t o st r uct ur al member s.

l . Fl ashi ng, speci al s i di ng det ai l s, wal l penet r at i ons, openi ngs, and condi t i on of ot her const r uct i on t hat wi l l af f ect met al wal l panel s.

m. Gover ni ng r egul at i ons and r equi r ement s f or i nsur ance, cer t i f i cat es, and t est s and i nspect i ons i f appl i cabl e.

n. Tempor ar y pr ot ect i on r equi r ement s f or met al wal l panel assembl y dur i ng and af t er i nst al l at i on.

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o. Wal l panel obser vat i on and r epai r pr ocedur es af t er met al wal l panel i nst al l at i on. Pr ovi de det ai l ed wr i t t en i nst r uct i ons i ncl udi ng copi es of Mat er i al Saf et y Dat a Sheet s f or mai nt enance and r epai r mat er i al s, and manuf act ur er ' s mai nt enance i nst r uct i ons.

1. 5. 1. 1 I nst al l at i on Dr awi ngs

I nst al l at i on shop dr awi ngs f or wal l panel s, f l ashi ng, accessor i es, and anchor age syst ems must i ndi cat e compl et el y di mensi oned st r uct ur al f r ame and er ect i on l ayout s, openi ngs i n t he wal l , speci al f r ami ng det ai l s, and const r uct i on det ai l s at cor ner s, bui l di ng i nt er sect i ons and f l ashi ng, l ocat i on and t ype of mast i c and met al f i l l er st r i ps.

1. 5. 1. 2 Wi nd Load Desi gn Anal ysi s

Wi nd desi gn anal ysi s must i ncl ude wal l pl an del i neat i ng di mensi ons and at t achment pat t er ns f or each zone. Wi nd desi gn anal ysi s must be pr epar ed and seal ed by Li censed Pr oj ect Engi neer i n t he geogr aphi c ar ea wher e t he const r uct i on wi l l t ake pl ace.

1. 5. 2 Manuf act ur er ' s Techni cal Repr esent at i ve

The r epr esent at i ve must have aut hor i zat i on f r om manuf act ur er t o appr ove f i el d changes and be t hor oughl y f ami l i ar wi t h t he pr oduct s and i nst al l at i ons i n t he geogr aphi cal ar ea wher e const r uct i on wi l l t ake pl ace.

1. 5. 3 Qual i f i cat i on of Manuf act ur er

Cer t i f y t hat met al wal l panel syst em manuf act ur er has a mi ni mum of f i ve ( 5) year s exper i ence i n manuf act ur i ng met al wal l syst em and accessor y products.

Manuf act ur er must al so pr ovi de engi neer i ng ser vi ces by an aut hor i zed engi neer ; cur r ent l y l i censed i n t he geogr aphi cal ar ea wher e const r uct i on wi l l t ake pl ace, havi ng a mi ni mum of f our ( 4) year s exper i ence as an engi neer knowl edgeabl e i n wi nd l oad desi gn anal ysi s, pr ot ocol s and pr ocedur es per MBMA MBSM, " Met al Bui l di ng Syst ems Manual " ; ASCE 7, and

ASTM E1592.

Pr ovi de cer t i f i ed engi neer i ng cal cul at i ons, usi ng t he pr oduct s submi t t ed, f or Wi nd l oad r equi r ement s i n accor dance wi t h ASCE 7.

1. 5. 3. 1 Manuf act ur er ' s Cer t i f i cat es

Al so pr ovi de t he f ol l owi ng cer t i f i cat i ons f r om t he manuf act ur er :

Coi l St ock Fasteners Gal vani z i ng Repai r Pai nt Enamel Repai r Pai nt

Submi t cer t i f i cat i on f r om coi l st ock manuf act ur er or suppl i er t hat t he machi ner y used wi l l f or m t he pr ovi ded coi l st ock wi t hout war pi ng, wavi ness, or r i ppl i ng t hat i s not a par t of t he panel pr of i l e, and wi t hout damage, abr asi on or mar r i ng of t he f i ni sh coat i ng.

Pr ovi de evi dence t hat pr oduct s used wi t hi n t hi s speci f i cat i on ar e manuf act ur ed i n t he Uni t ed St at es.

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1. 5. 4 Cer t i f i ed Qual i f i cat i on of I nst al l at i on Cont r act or

The i nst al l at i on cont r act or must be appr oved and cer t i f i ed by t he met al wal l panel manuf act ur er pr i or t o begi nni ng t he i nst al l at i on of t he met al wal l panel syst em. Subcont r act i ng by Cer t i f i ed Cont r act or f or t he met al wal l panel wor k i s not per mi t t ed.

1. 5. 5 Si ngl e Sour ce

Obt ai n each t ype of met al wal l panel s, c l i ps, c l osur e mat er i al s and ot her accessor i es f r om t he st andar d pr oduct s of t he s i ngl e sour ce f r om a si ngl e manuf act ur er t o oper at e as a compl et e syst em f or t he i nt ended use.

1. 5. 6 Manuf act ur er ' s Mai nt enance I nst r uct i ons

Pr ovi de manuf act ur er ' s det ai l ed wr i t t en i nst r uct i ons i ncl udi ng copi es of Mat er i al Saf et y Dat a Sheet s f or mai nt enance and r epai r mat er i al s.

1. 6 DELI VERY, HANDLI NG, AND STORAGE

Del i ver and pr ot ect package component s, sheet s, met al wal l panel s, and ot her manuf act ur ed i t ems t o pr event damage or def or mat i on dur i ng t r anspor t at i on and handl i ng.

Unl oad, st or e, and er ect met al wal l panel s i n a manner t o pr event bendi ng, war pi ng, t wi st i ng, and sur f ace damage.

St ack and st or e met al wal l panel s hor i zont al l y on pl at f or ms or pal l et s, cover ed wi t h sui t abl e weat her - t i ght and vent i l at ed cover i ng t o ensur e dr yness, wi t h posi t i ve s l ope f or dr ai nage of wat er . Do not st or e met al wal l panel s i n cont act wi t h ot her mat er i al s t hat mi ght cause st ai ni ng, dent i ng, or ot her sur f ace damage.

Ret ai n st r i ppabl e pr ot ect i ve cover i ng on met al wal l panel unt i l act ual installation.

1. 7 PROJECT CONDI TI ONS

1. 7. 1 Fi el d Measur ement s

Ver i f y l ocat i ons of wal l f r ami ng and openi ng di mensi ons by f i el d measur ement s bef or e met al wal l panel f abr i cat i on and i ndi cat e measur ement s on Shop Dr awi ngs.

1. 7. 2 Weat her Li mi t at i ons

Pr oceed wi t h i nst al l at i on pr epar at i on onl y when exi st i ng and f or ecast ed weat her condi t i ons per mi t Wor k t o pr oceed wi t hout wat er ent er i ng i nt o wal l syst em or bui l di ng.

1. 8 WARRANTY

War r ant y must conf or m t o t he Sampl e War r ant y as r evi ewed and appr oved by t he Cont r act i ng Of f i cer .

1. 8. 1 20 Year " No Dol l ar Li mi t " War r ant y f or Labor and Mat er i al

Fur ni sh manuf act ur er ' s no- dol l ar - l i mi t war r ant y f or t he met al wal l panel syst em. The war r ant y per i od i s t o be no l ess t han t went y ( 20) year s f r om

Apr i l 2019 Page 9 SECTI ON 07 42 13 t he dat e of Gover nment accept ance of t he wor k. The war r ant y i s t o be i ssued di r ect l y t o t he Gover nment . The war r ant y i s t o pr ovi de t hat i f wi t hi n t he war r ant y per i od t he met al wal l panel syst em shows evi dence of cor r osi on, per f or at i on, r upt ur e or excess weat her i ng due t o det er i or at i on of t he wal l panel syst em r esul t i ng f r om def ect i ve mat er i al s and cor r ect i on of t he def ect i ve wor kmanshi p i s t o be t he r esponsi bi l i t y of t he met al wal l panel syst em manuf act ur er . Repai r s t hat become necessar y because of def ect i ve mat er i al s and wor kmanshi p whi l e met al wal l panel syst em i s under war r ant y ar e t o be per f or med wi t hi n 24 hour s af t er not i f i cat i on, unl ess addi t i onal t i me i s appr oved by t he Cont r act i ng Of f i cer . Fai l ur e t o per f or m r epai r s wi t hi n 24 hour s of not i f i cat i on wi l l const i t ut e gr ounds f or havi ng emer gency r epai r s per f or med by ot her s and not voi d t he war r ant y.

PART 2 PRODUCTS

2. 1 FABRICATION

Unl ess appr oved ot her wi se, f abr i cat e and f i ni sh met al wal l panel s and accessor i es at t he f act or y t o gr eat est ext ent possi bl e, by manuf act ur er ' s st andar d pr ocedur es and pr ocesses and as necessar y t o f ul f i l l i ndi cat ed and speci f i ed per f or mance r equi r ement s. Compl y wi t h i ndi cat ed pr of i l es and wi t h di mensi onal and st r uct ur al r equi r ement s. See sect i on 01 33 29 LEED( t m) DOCUMENTATI ON f or cumul at i ve t ot al r ecycl ed cont ent r equi r ement s.

Pr ovi de panel pr of i l e, i ncl udi ng maj or r i bs and i nt er medi at e st i f f eni ng r i bs, i f any, f or f ul l l engt h of panel . Fabr i cat e met al wal l panel s i de l aps wi t h f act or y- i nst al l ed capt i ve gasket s or separ at or st r i ps t hat pr ovi de a t i ght seal and pr event met al - t o- met al cont act , i n a manner t hat wi l l seal weat her - t i ght and mi ni mi ze noi se f r om movement s wi t hi n panel assembly.

2. 1. 1 Sheet Met al Accessor i es

Fabr i cat e f l ashi ng and t r i m t o compl y wi t h r ecommendat i ons i n SMACNA 1793 t hat appl y t o t he desi gn, di mensi ons, met al , and ot her char act er i st i cs of i t em i ndi cat ed:

a. For m exposed sheet met al accessor i es t hat ar e wi t hout excessi ve oi l canni ng, buckl i ng, and t ool mar ks and t hat ar e t r ue t o l i ne and l evel s i ndi cat ed, wi t h exposed edges f ol ded back t o f or m hems.

b. End Seams: f abr i cat e nonmovi ng end seams wi t h f l at - l ock seams. For m seams and seal wi t h epoxy seam seal er . Ri vet j oi nt s f or addi t i onal strength.

c. Seal ed Joi nt s: f or m non- expansi on but movabl e j oi nt s i n met al t o accommodat e el ast omer i c seal ant t o compl y wi t h SMACNA 1793.

d. Conceal f ast ener s and expansi on pr ovi s i ons wher e possi bl e. Exposed f ast ener s ar e not al l owed on f aces of accessor i es exposed t o v i ew.

e. Fabr i cat e c l eat s and at t achment devi ces of s i ze and met al t hi ckness r ecommended by SMACNA 1793 or by met al wal l panel manuf act ur er f or appl i cat i on, but not l ess t han t hi ckness of met al bei ng secur ed.

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2. 2 PANEL MATERI ALS

2. 2. 1 St eel Sheet

Rol l - f or m st eel wal l panel s t o t he speci f i ed pr of i l e, wi t h f y= 40 ksi , 22 gauge and dept h as i ndi cat ed. Mat er i al must be pl umb and t r ue, and wi t hi n t he t ol er ances l i s t ed:

a. Gal vani zed St eel Sheet conf or mi ng t o ASTM A653/ A653M and AI SI SG03- 3.

c. I ndi v i dual panel s must be cont i nuous l engt h t o cover t he ent i r e l engt h of any unbr oken wal l ar ea wi t h no j oi nt s or seams and f or med wi t hout war pi ng, wavi ness, or r i ppl es t hat ar e not par t of t he panel pr of i l e and f r ee of damage t o t he f i ni sh coat i ng syst em.

d. Pr ovi de panel s wi t h t her mal expansi on and cont r act i on consi st ent wi t h t he t ype of syst em speci f i ed.

1. Pr of i l e and cover age t o be a mi ni mum hei ght and wi dt h f r om manuf act ur er ' s st andar d f or t he i ndi cat ed wal l ar ea.

2. Pr of i l e t o be a 1- 1/ 2 i nch hi gh r i b at 12 i nches o. c. wi t h smal l st i f f eni ng r i bs, 38 i nch over al l wi dt h wi t h 36 i nch cover age and exposed f ast ener s.

3. Pr of i l e t o be a 1- 1/ 2 i nch hi gh r i b at 7. 2 i nches o. c. , 38- 7/ 8 i nch over al l wi dt h wi t h 36 i nch cover age and exposed f ast ener s.

4. Pr of i l e t o be a 1 i nch hi gh r i b at 4 i nches o. c. , 49- 5/ 8 i nch over al l wi dt h wi t h 48 i nch cover age and exposed f ast ener s.

5. Pr of i l e t o be a 1 i nch hi gh r i b at 8 i nches o. c. , 41- 5/ 8 i nch over al l wi dt h wi t h 40 i nch cover age and exposed f ast ener s.

6. Pr of i l e t o be a 7/ 8 i nch hi gh cor r ugat ed r i b at 2 i nches o. c. , 38- 7/ 8 i nch over al l wi dt h wi t h 36 i nch cover age and exposed fasteners.

7. Pr of i l e t o be a 3 i nch hi gh st andi ng seam, 24 i nch cover age, f act or y- caul ked and mechani cal cr i mpi ng or snap- t oget her seams wi t h conceal ed cl i ps and f ast ener s.

8. Pr of i l e t o be a 11- 3/ 422- 1/ 2 i nch hi gh st andi ng seam, 121618 i nch cover age, wi t h mechani cal cr i mpi ng or snap- t oget her seams wi t h conceal ed cl i ps and f ast ener s.

9. Smoot h, f l at Embossed Sur f ace Text ur e.

2. 2. 2 Fact or y Col or Fi ni sh

Compl y wi t h NAAMM AMP 500 f or r ecommendat i ons f or appl y i ng and desi gnat i ng f i ni shes. Not i ceabl e var i at i ons i n same pi ece ar e not accept abl e.

Var i at i ons i n appear ance of adj oi ni ng component s ar e accept abl e i f t hey ar e wi t hi n t he r ange of appr oved sampl es and ar e assembl ed or i nst al l ed t o mi ni mi ze cont r ast .

Al l panel s ar e t o r ecei ve a f act or y- appl i ed Kynar 500/ Hyl ar 5000 f i ni sh consi st i ng of a baked- on t op- coat wi t h a manuf act ur er ' s r ecommended pr i me

Apr i l 2019 Page 11 SECTI ON 07 42 13 coat conf or mi ng t o t he f ol l owi ng:

2. 2. 2. 1 Met al Pr epar at i on

Car ef ul l y pr epar e al l met al sur f ace f or pai nt i ng on a cont i nuous pr ocess coi l coat i ng l i ne by al kal i c l eani ng, hot wat er r i nsi ng, appl i cat i on of chemi cal conver si on coat i ng, col d wat er r i nsi ng, seal i ng wi t h aci d r i nse, and t hor ough dr yi ng.

2. 2. 2. 2 Pr i me Coat i ng

Appl y a base coat of epoxy pai nt , speci f i cal l y f or mul at ed t o i nt er act wi t h t he t op- coat , t o t he pr epar ed sur f aces by r ol l coat i ng t o a dr y f i l m t hi ckness of 0. 20 pl us 0. 05 mi l s. Pr i me coat must be oven cur ed pr i or t o appl i cat i on of f i ni sh coat .

2. 2. 2. 3 Ext er i or Fi ni sh Coat i ng

Rol l coat t he f i ni sh coat i ng over t he pr i mer by r ol l coat i ng t o dr y f i l m t hi ckness of 0. 80 pl us 5 mi l s ( 3. 80 pl us 0. 50 mi l s f or Vi nyl Pl ast i sol ) f or a t ot al dr y f i l m t hi ckness of 1. 00 pl us 0. 10 mi l s ( 4. 00 pl us 0. 10 mi l s f or Vi nyl Pl ast i sol ) . Oven- cur e f i ni sh coat .

2. 2. 2. 4 I nt er i or Fi ni sh Coat i ng

Appl y a wash- coat on t he r ever se si de over t he pr i mer by r ol l coat i ng t o a dr y f i l m t hi ckness of 0. 30 pl us 0. 05 mi l s f or a t ot al dr y f i l m t hi ckness of 0. 50 pl us 0. 10 mi l s. Oven- cur ed t he wash coat .

2. 2. 2. 5 Color

Pr ovi de ext er i or f i ni sh col or as sel ect ed by t he Cont r act i ng Of f i cer f r om t he manuf act ur er ' s st andar d col or char t .

2. 2. 2. 6 Physi cal Pr oper t i es

Coat i ng must conf or m t o t he i ndust r y and manuf act ur er ' s st andar d per f or mance cr i t er i a as l i s t ed by t he f ol l owi ng cer t i f i ed t est r epor t s:

General: ASTM D5894 and ASTM D4587

Abrasion: ASTM D968

Adhesion: ASTM D3359

Chalking: ASTM D4214

Chemi cal Pol l ut i on: ASTM D1308

Col or Change and Conf or mi t y: ASTM D2244

Creepage: ASTM D1654

Cycl i c Cor r osi on Test : ASTM D5894

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Fl ame Spr ead: ASTM E84

Flexibility: ASTM D522/ D522M

Formability: ASTM D522/ D522M

Gl oss at 60 and 85 degr ees: ASTM D523

Humidity: ASTM D2247 and ASTM D714

Oxidation: ASTM D610

Penci l Har dness: ASTM D3363

Rever se I mpact : ASTM D2794

Sal t Spr ay: ASTM B117

Weatherometer: ASTM G152, ASTM G153 and ASTM D822

2. 3 MI SCELLANEOUS METAL FRAMI NG

Col d- f or med met al l i c- coat ed st eel sheet conf or mi ng t o ASTM A653/ A653M and speci f i ed i n Sect i on 05 40 00 COLD- FORMED METAL FRAMI NG unl ess ot her wi se indicated.

2. 3. 1 Fast ener s f or Mi scel l aneous Met al Fr ami ng

Type, mat er i al , cor r osi on r esi st ance, s i ze and suf f i c i ent l engt h t o penet r at e t he suppor t i ng member a mi ni mum of 1 i nch wi t h ot her pr oper t i es r equi r ed t o f ast en mi scel l aneous met al f r ami ng member s t o suppor t i ng member s and subst r at es i n accor dance wi t h t he wal l panel manuf act ur er ' s and ASCE 7 r equi r ement s.

2. 4 FASTENERS

2. 4. 1 General

2. 4. 1. 1 Exposed Fast ener s

Pr ovi de cor r osi on r esi st ant f ast ener s f or wal l panel s, made of coat ed st eel , al umi num, 305 - ser i es cor r osi on r esi st i ng st ai nl ess st eel , or nyl on capped st eel compat i bl e wi t h t he sheet panel or f l ashi ng and of a t ype and si ze r ecommended by t he manuf act ur er t o meet t he per f or mance r equi r ement s and desi gn l oads.

Fast ener s f or accessor i es must be t he manuf act ur er ' s st andar d. Pr ovi de an i nt egr al met al washer mat chi ng t he col or of at t ached mat er i al wi t h compr essi bl e seal i ng EPDM gasket appr oxi mat el y 3/ 32 i nch t hi ck.

2. 4. 1. 2 Hi dden Fast ener s

Pr ovi de cor r osi on r esi st ant f ast ener s r ecommended by t he manuf act ur er t o meet t he per f or mance r equi r ement s and desi gn l oads.

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2. 4. 1. 3 Screws

Scr ews t o be cor r osi on r esi st ant coat ed st eel , al umi num and/ or 305 - ser i es st ai nl ess st eel bei ng t he t ype and si ze r ecommended by t he manuf act ur er t o meet t he per f or mance r equi r ement s.

2. 4. 1. 4 Rivets

Ri vet s t o be cl osed- end t ype, cor r osi on r esi st ant coat ed st eel , al umi num or st ai nl ess st eel wher e wat er t i ght connect i ons ar e r equi r ed.

2. 4. 1. 5 At t achment Cl i ps

Fabr i cat e c l i ps f r om st eel hot - di pped gal vani zed i n accor dance wi t h ASTM A653/ A653M, Z275 G 90 or Ser i es 300 st ai nl ess st eel . Si ze, shape, t hi ckness and capaci t y as r equi r ed meet i ng t he i nsul at i on t hi ckness and desi gn l oad cr i t er i a speci f i ed.

2. 5 ACCESSORIES

2. 5. 1 General

Al l accessor i es must be compat i bl e wi t h t he met al wal l panel s. Sheet met al f l ashi ng, t r i m, met al c l osur e st r i ps, caps and si mi l ar met al accessor i es must not be l ess t han t he mi ni mum t hi ckness speci f i ed f or t he wal l panel s.

Exposed met al accessor i es/ f i ni shes t o mat ch t he panel s f ur ni shed, except as ot her wi se i ndi cat ed. Mol ded f oam r i b, r i dge and ot her c l osur e st r i ps must be non- absor bent c l osed- cel l or sol i d- cel l synt het i c r ubber or pr e- mol ded neopr ene t o mat ch conf i gur at i on of t he panel s.

2. 5. 2 Rubber Cl osur e St r i ps

Pr ovi de cl osed- cel l , expanded cel l ul ar r ubber conf or mi ng t o ASTM D1056 and ASTM D1667; ext r uded or mol ded t o t he conf i gur at i on of t he speci f i ed wal l panel and i n l engt hs suppl i ed by t he wal l panel manuf act ur er .

2. 5. 3 Met al Cl osur e St r i ps

Pr ovi de f act or y f abr i cat ed st eel c l osur e st r i ps t o be t he same gauge, col or , f i ni sh and pr of i l e of t he speci f i ed wal l panel .

2. 5. 4 Joi nt Seal ant s

2. 5. 4. 1 Seal ant s and Caul ki ng

Pr ovi de appr oved gun t ype seal ant s f or use i n hand- or ai r - pr essur e caul k i ng guns at t emper at ur es above 4 degr ees C ( or f r ost - f r ee appl i cat i on at t emper at ur es above 10 degr ees F wi t h mi ni mum sol i d cont ent of 85 per cent of t he t ot al vol ume. Seal ant s must dr y wi t h a t ough, dur abl e sur f ace ski n whi ch per mi t r emai ni ng sof t and pl i abl e under neat h, pr ovi di ng a weat her - t i ght j oi nt . No mi gr at or y st ai ni ng i s per mi t t ed on pai nt ed or unpai nt ed met al , st one, gl ass, v i nyl , or wood.

Pr i me al l j oi nt s r ecei v i ng seal ant s wi t h a compat i bl e one- component or t wo- component pr i mer as r ecommended by t he wal l panel manuf act ur er .

2. 5. 4. 2 Shop-Applied

Seal ant f or shop- appl i ed caul k i ng must be non- cur i ng but yl compl i ant wi t h

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AAMA 800 t o ensur e t he seal ant ' s pl ast i c i t y at t he t i me of f i el d er ect i on.

2. 5. 4. 3 Field-Applied

Seal ant f or f i el d- appl i ed caul k i ng must be an appr oved gun gr ade, non- sag one component pol ysul f i de or t wo- component pol yur et hane wi t h an i ni t i al maxi mum Shor e A dur omet er har dness of 25, and conf or mi ng t o ASTM C920, Type I I . Col or t o mat ch panel col or s.

2. 5. 4. 4 Pr essur e Sensi t i ve Tape

Pr ovi de pr essur e sensi t i ve t ape seal ant , 100 per cent sol i d wi t h a r el ease paper backi ng; per manent l y el ast i c, non- saggi ng, non- t oxi c and non- st ai ni ng as appr oved by t he wal l panel manuf act ur er .

2. 6 SHEET METAL FLASHI NG AND TRI M

2. 6. 1 Fabrication

Shop f abr i cat e sheet met al f l ashi ng and t r i m wher e pr act i cabl e t o compl y wi t h r ecommendat i ons i n SMACNA 1793 t hat appl y t o desi gn, di mensi ons, met al , and ot her char act er i st i cs of i t em i ndi cat ed. Obt ai n f i el d measur ement s f or accur at e f i t bef or e shop f abr i cat i on.

Fabr i cat e sheet met al f l ashi ng and t r i m wi t hout excessi ve oi l canni ng, buckl i ng, and t ool mar ks and t r ue t o l i ne and l evel s i ndi cat ed, wi t h exposed edges f ol ded back t o f or m hems.

2. 7 REPAI R OF FI NI SH PROTECTI ON

Repai r pai nt f or col or f i ni sh enamel ed wal l panel must be compat i bl e pai nt of t he same f or mul a and col or as t he speci f i ed f i ni sh f ur ni shed by t he wal l panel manuf act ur er . Pr ovi de __t wo___ quar t s of al umi ni zed st eel r epai r pai nt r epai r pai nt mat chi ng t he speci f i ed wal l panel s.

PART 3 EXECUTI ON

3. 1 EXAMINATION

Exami ne subst r at es, ar eas, and condi t i ons, wi t h I nst al l er pr esent , f or compl i ance wi t h r equi r ement s f or i nst al l at i on t ol er ances, met al wal l panel suppor t s, and ot her condi t i ons af f ect i ng per f or mance of t he Wor k.

Exami ne pr i mar y and secondar y wal l f r ami ng t o ver i f y t hat r af t er s, pur l i ns, angl es, channel s, and ot her st r uct ur al panel suppor t member s and anchor ages have been i nst al l ed wi t hi n al i gnment t ol er ances r equi r ed by met al wal l panel manuf act ur er , UL, ASTM, ASCE 7 and as r equi r ed f or t he geogr aphi cal ar ea wher e const r uct i on wi l l t ake pl ace.

Exami ne sol i d wal l sheat hi ng t o ver i f y t hat sheat hi ng j oi nt s ar e suppor t ed by f r ami ng or bl ocki ng and t hat i nst al l at i on i s wi t hi n f l at ness t ol er ances r equi r ed by met al wal l panel manuf act ur er .

Exami ne r oughi ng- i n f or component s and syst ems penet r at i ng met al wal l panel s t o ver i f y act ual l ocat i ons of penet r at i ons r el at i ve t o seam l ocat i ons of met al wal l panel s bef or e met al wal l panel i nst al l at i on.

Submi t t o t he Cont r act i ng Of f i cer a wr i t t en r epor t , endor sed by I nst al l er , l i s t i ng condi t i ons det r i ment al t o per f or mance of t he Wor k. Pr oceed wi t h

Apr i l 2019 Page 15 SECTI ON 07 42 13 i nst al l at i on onl y af t er unsat i sf act or y condi t i ons have been cor r ect ed.

3. 2 PREPARATION

Cl ean subst r at es of subst ances har mf ul t o i nsul at i on, i ncl udi ng r emovi ng pr oj ect i ons capabl e of i nt er f er i ng wi t h i nsul at i on at t achment .

Mi scel l aneous f r ami ng i nst al l at i on, i ncl udi ng sub- pur l i ns, gi r t s, angl es, f ur r i ng, and ot her mi scel l aneous wal l panel suppor t member s and anchor age must be accor di ng t o met al wal l panel manuf act ur er ' s wr i t t en i nst r uct i ons.

3. 3 WALL PANEL I NSTALLATI ON

Pr ovi de f ul l l engt h met al wal l panel s, f r om si l l t o eave as i ndi cat ed, unl ess ot her wi se i ndi cat ed or r est r i ct ed by shi ppi ng l i mi t at i ons. Anchor met al wal l panel s and ot her component s of t he Wor k secur el y i n pl ace, wi t h pr ovi s i ons f or t her mal and st r uct ur al movement i n accor dance wi t h MBMA MBSM.

Er ect wal l panel syst em i n accor dance wi t h t he appr oved er ect i on dr awi ngs, t he pr i nt ed i nst r uct i ons and saf et y pr ecaut i ons of t he manuf act ur er .

Sheet s ar e not t o be subj ect ed t o over l oadi ng, abuse, or undue i mpact .

Bent , chi pped, or def ect i ve sheet s shal l not be appl i ed.

Sheet s must be er ect ed t r ue and pl umb and i n exact al i gnment wi t h t he hor i zont al and ver t i cal edges of t he bui l di ng, secur el y anchor ed, and wi t h t he i ndi cat ed eave, and si l l .

Wor k i s t o al l ow f or t her mal movement of t he wal l panel , movement of t he bui l di ng st r uct ur e, and t o pr ovi de per manent f r eedom f r om noi se due t o wi nd pr essur e.

Fi el d cut t i ng met al wal l panel s by t or ch i s not per mi t t ed.

3. 3. 1 St eel Wal l Panel s

Use st ai nl ess- st eel f ast ener s f or ext er i or sur f aces and gal vani zed st eel f ast ener s f or i nt er i or sur f aces.

3. 3. 2 Anchor Cl i ps

Anchor met al wal l panel s and ot her component s of t he Wor k secur el y i n pl ace, usi ng manuf act ur er ' s appr oved f ast ener s accor di ng t o manuf act ur er s ' wr i t t en i nst r uct i ons.

] 3. 3. 3 Met al Pr ot ect i on

Wher e di ssi mi l ar met al s wi l l cont act each ot her or cor r osi ve subst r at es, pr ot ect agai nst gal vani c act i on by pai nt i ng cont act sur f aces wi t h bi t umi nous coat i ng, by appl y i ng r ubber i zed- asphal t under l ayment t o each cont act sur f ace, or by ot her per manent separ at i on as r ecommended by met al wal l panel manuf act ur er .

3. 3. 4 Joi nt Seal er s

I nst al l gasket s, j oi nt f i l l er s, and seal ant s wher e i ndi cat ed and wher e r equi r ed f or weat her pr oof per f or mance of met al wal l panel assembl i es.

Pr ovi de t ypes of gasket s, f i l l er s, and seal ant s i ndi cat ed or , i f not i ndi cat ed, t ypes r ecommended by met al wal l panel manuf act ur er .

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3. 4 FASTENER I NSTALLATI ON

Anchor met al wal l panel s and ot her component s of t he Wor k secur el y i n pl ace, usi ng manuf act ur er ' s appr oved f ast ener s accor di ng t o manuf act ur er s ' wr i t t en i nst r uct i ons.

3. 5 FLASHI NG, TRI M AND CLOSURE I NSTALLATI ON

3. 5. 1 Gener al Requi r ement s

Compl y wi t h per f or mance r equi r ement s, manuf act ur er ' s wr i t t en i nst al l at i on i nst r uct i ons, and SMACNA 1793. Pr ovi de conceal ed f ast ener s wher e possi bl e, and set uni t s t r ue t o l i ne and l evel as i ndi cat ed. I nst al l wor k wi t h l aps, j oi nt s, and seams t o f or m per manent l y wat er t i ght and weat her resistant.

I nst al l sheet met al wor k i s t o f or m weat her - t i ght const r uct i on wi t hout waves, war ps, buckl es, f ast eni ng st r esses or di st or t i on, and al l ow f or expansi on and cont r act i on. Cut t i ng, f i t t i ng, dr i l l i ng, and ot her oper at i ons i n connect i on wi t h sheet met al r equi r ed t o accommodat e t he wor k of ot her t r ades i s t o be per f or med by sheet met al mechani cs.

3. 5. 2 Met al Fl ashi ng

I nst al l exposed met al f l ashi ng at bui l di ng cor ner s, s i l l s and eaves, j unct i ons bet ween met al s i di ng and wal l i ng. Exposed met al f l ashi ng must be t he same mat er i al , col or , and f i ni sh as t he speci f i ed met al wal l panel .

Fast en f l ashi ng at a mi ni mum of 8 i nches on cent er , except wher e f l ashi ng i s hel d i n pl ace by t he same scr ews t hat secur e cover i ng sheet s.

Fl ashi ng i s t o be f ur ni shed i n at l east 8 f oot l engt hs. Exposed f l ashi ng i s t o have 1 i nch l ocked and bl i nd- sol der ed end j oi nt s, and expansi on j oi nt s at i nt er val s of not mor e t han 16 f eet .

Exposed f l ashi ng and f l ashi ng subj ect t o r ai n penet r at i on t o be bedded i n t he speci f i ed j oi nt seal ant .

I sol at e f l ashi ng whi ch i s i n cont act wi t h di ssi mi l ar met al s by means of t he speci f i ed asphal t mast i c mat er i al t o pr event el ect r ol yt i c deterioration.

For m dr i ps t o t he pr of i l e i ndi cat ed, wi t h t he edge f ol ded back 1/ 2 i nch t o f or m a r ei nf or ced dr i p edge.

3. 5. 3 Closures

I nst al l met al c l osur e st r i ps at open ends of cor r ugat ed or r i bbed pat t er n wal l s, and at i nt er sect i on of wal l and wal l unl ess open ends ar e conceal ed wi t h f or med eave f l ashi ng; and i n ot her r equi r ed ar eas.

I nst al l mast i c c l osur e st r i ps at i nt er sect i on of t he wal l wi t h met al wal l i ng; t op and bot t om of met al s i di ng; heads of wal l openi ngs; and i n ot her r equi r ed l ocat i ons.

3. 6 WORKMANSHIP

Make l i nes, ar i ses, and angl es shar p and t r ue. Fr ee exposed sur f aces f r om vi s i bl e wave, war p, buckl e, and t ool mar ks. Fol d back exposed edges

Apr i l 2019 Page 17 SECTI ON 07 42 13 neat l y t o f or m a 1/ 2 i nch hem on t he conceal ed si de. Make sheet met al exposed t o t he weat her wat er t i ght wi t h pr ovi s i ons f or expansi on and contraction.

Make sur f aces t o r ecei ve sheet met al pl umb and t r ue, c l ean, even, smoot h, dr y, and f r ee of def ect s and pr oj ect i ons whi ch mi ght af f ect t he appl i cat i on. For i nst al l at i on of i t ems not shown i n det ai l or not cover ed by speci f i cat i ons conf or m t o t he appl i cabl e r equi r ement s of SMACNA 1793.

Pr ovi de sheet met al f l ashi ng i n t he angl es f or med wher e r oof decks abut wal l s, cur bs, vent i l at or s, pi pes, or ot her ver t i cal sur f aces and wher ever i ndi cat ed and necessar y t o make t he wor k wat er t i ght .

3. 7 ACCEPTANCE PROVI SI ONS

3. 7. 1 Er ect i on Tol er ances

Er ect met al wal l panel s st r ai ght and t r ue wi t h pl umb ver t i cal l i nes cor r ect l y l apped and secur ed i n accor dance wi t h t he manuf act ur er ' s wr i t t en instructions.

3. 7. 2 Leakage Test s

Fi ni shed appl i cat i on of met al wal l panel s ar e t o be subj ect t o i nspect i on and t est f or l eakage by r equest of t he Cont r act i ng Of f i cer , Ar chi t ect / Engi neer . Conduct i nspect i on and t est s at no cost t o t he Government.

I nspect i on and t est i ng i s t o be made pr ompt l y af t er er ect i on t o per mi t cor r ect i on of def ect s and t he r emoval and r epl acement of def ect i ve materials.

3. 7. 3 Repai r s t o Fi ni sh

Scr at ches, abr asi ons, and mi nor sur f ace def ect s of f i ni sh may be r epai r ed wi t h t he speci f i ed r epai r mat er i al s. Fi ni shed r epai r ed sur f aces must be uni f or m and f r ee f r om var i at i ons of col or and sur f ace t ext ur e.

Repai r ed met al sur f aces t hat ar e not accept abl e t o t he pr oj ect r equi r ement s and/ or Cont r act i ng Of f i cer ar e t o be i mmedi at el y r emoved and r epl aced wi t h new mat er i al .

3. 7. 4 Pai nt - Fi ni sh Met al Si di ng

Pai nt - f i ni sh met al s i di ng wi l l be t est ed f or col or st abi l i t y by t he Cont r act i ng Of f i cer dur i ng t he manuf act ur er ' s speci f i ed guar ant ee per i od.

Panel s t hat i ndi cat e col or changes, f adi ng, or sur f ace degr adat i on, det er mi ned by v i sual exami nat i on, must be r emoved and r epl aced wi t h new panel s at no expense t o t he Gover nment .

New panel s wi l l be subj ect t o t he speci f i ed t est s f or an addi t i onal year f r om t he dat e of t hei r i nst al l at i on.

3. 8 FI ELD QUALI TY CONTROL

3. 8. 1 Const r uct i on Moni t or i ng

Make vi sual i nspect i ons as necessar y t o ensur e compl i ance wi t h speci f i ed r equi r ement s. Addi t i onal l y, ver i f y t he f ol l owi ng:

Apr i l 2019 Page 18 SECTI ON 07 42 13

a. Mat er i al s compl y wi t h t he speci f i ed r equi r ement s.

b. Al l mat er i al s ar e pr oper l y st or ed, handl ed and pr ot ect ed f r om damage.

Damaged mat er i al s ar e r emoved f r om t he si t e.

c. Fr ami ng and subst r at es ar e i n accept abl e condi t i on, i n compl i ance wi t h speci f i cat i on, pr i or t o appl i cat i on of wal l panel s.

d. Panel s ar e i nst al l ed wi t hout buckl es, r i ppl es, or waves and i n uni f or m al i gnment and modul us.

e. Si de l aps ar e f or med, seal ed, f ast ened or seam l ocked as r equi r ed.

f . The pr oper number , t ype, and spaci ng of at t achment c l i ps and f ast ener s ar e i nst al l ed.

g. I nst al l er adher es t o speci f i ed and det ai l ed appl i cat i on par amet er s.

h. Associ at ed f l ashi ng and sheet met al ar e i nst al l ed i n a t i mel y manner i n accor d wi t h t he speci f i ed r equi r ement s.

Pr ovi de f i ve bound copi es of Manuf act ur er ' s Fi el d Repor t s t o t he Cont r act i ng Of f i cer t wo weeks pr i or t o pr oj ect c l ose- out .

3. 9 CLEAN- UP AND DI SPOSAL

Cl ean al l exposed sheet met al wor k at compl et i on of i nst al l at i on. Remove met al shavi ngs, f i l i ngs, nai l s, bol t s, and wi r es f r om wor k ar ea. Remove gr ease and oi l f i l ms, excess seal ant s, handl i ng mar ks, cont ami nat i on f r om st eel wool , f i t t i ngs and dr i l l i ng debr i s and scr ub t he wor k c l ean.

Exposed met al sur f aces must be f r ee of dent s, cr eases, waves, scr at ch mar ks, sol der or wel d mar ks, and damage t o t he f i ni sh coat i ng.

Col l ect and pl ace scr ap/ wast e mat er i al s i n cont ai ner s. Pr ompt l y di spose of demol i shed mat er i al s. Do not al l ow demol i shed mat er i al s t o accumul at e on- si t e; t r anspor t demol i shed mat er i al s f r om gover nment pr oper t y and l egal l y di spose of t hem.

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