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

SECTI ON 07 60 00

FLASHI NG AND SHEET METAL

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 WELDI NG SOCI ETY ( AWS)

AWS D1. 2/ D1. 2M ( 2014) St r uct ur al Wel di ng Code - Al umi num

ASTM I NTERNATI ONAL ( ASTM)

ASTM A308/ A308M ( 2010) St andar d Speci f i cat i on f or St eel Sheet , Ter ne ( Lead- Ti n Al l oy) Coat ed by t he Hot Di p Pr ocess

ASTM A480/ A480M ( 2016) St andar d Speci f i cat i on f or Gener al Requi r ement s f or Fl at - Rol l ed St ai nl ess and Heat - Resi st i ng St eel Pl at e, Sheet , and Strip

ASTM A653/ A653M ( 2015; E 2016) 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 B101 ( 2012) St andar d Speci f i cat i on f or Lead- Coat ed Copper Sheet and St r i p f or Bui l di ng Const r uct i on

ASTM B209 ( 2014) St andar d Speci f i cat i on f or Al umi num and Al umi num- Al l oy Sheet and Pl at e

ASTM B209M ( 2014) St andar d Speci f i cat i on f or Al umi num and Al umi num- Al l oy Sheet and Pl at e ( Met r i c)

ASTM B221 ( 2014) St andar d Speci f i cat i on f or Al umi num and Al umi num- Al l oy Ext r uded Bar s, Rods, Wi r e, Pr of i l es, and Tubes

ASTM B221M ( 2013) St andar d Speci f i cat i on f or Al umi num and Al umi num- Al l oy Ext r uded Bar s, Rods, Wi r e, Pr of i l es, and Tubes ( Met r i c)

ASTM B32 ( 2008; R 2014) St andar d Speci f i cat i on f or Sol der Met al

ASTM B370 ( 2012) St andar d Speci f i cat i on f or Copper Sheet and St r i p f or Bui l di ng Const r uct i on

ASTM B69 ( 2013) St andar d Speci f i cat i on f or Rol l ed

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Zinc

ASTM D1784 ( 2011) St andar d Speci f i cat i on f or Ri gi d Pol y( Vi nyl Chl or i de) ( PVC) Compounds and Chl or i nat ed Pol y( Vi nyl Chl or i de) ( CPVC) Compounds

ASTM D226/ D226M ( 2009) St andar d Speci f i cat i on f or Asphal t - Sat ur at ed Or gani c Fel t Used i n Roof i ng and Wat er pr oof i ng

ASTM D41/ D41M ( 2011; R 2016) St andar d Speci f i cat i on f or Asphal t Pr i mer Used i n Roof i ng, Damppr oof i ng, and Wat er pr oof i ng

ASTM D4586/ D4586M ( 2007; E 2012; R 2012) Asphal t Roof Cement , Asbest os- Fr ee

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

SI NGLE PLY ROOFI NG I NDUSTRY ( SPRI )

ANSI / SPRI RD- 1 ( 2009) Per f or mance St andar d f or Ret r of i t Drains

1. 2 GENERAL REQUI REMENTS

Fi ni shed sheet met al wor k wi l l f or m a 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, whi ch al l ows f or expansi on and cont r act i on. Sheet met al mechani c i s r esponsi bl e f or 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. Coor di nat e i nst al l at i on of sheet met al i t ems used i n conj unct i on wi t h r oof i ng wi t h r oof i ng wor k t o per mi t cont i nuous r oof i ng oper at i ons.

1. 3 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- 02 Shop Dr awi ngs

Cover i ng on f l at , s l oped, or cur ved sur f aces; G

Gut t er s; G

Downspout s; G

Expansi on j oi nt s; G

Gr avel st ops and f asci as; G

Spl ash pans; G

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Fl ashi ng f or r oof dr ai ns; G

Base f l ashi ng; G

Count er f l ashi ng; G

Fl ashi ng at r oof penet r at i ons; G

Regl et s; G

Scupper s; G

Copi ngs; G

Dr i p edge; G

Conduct or heads

Open val l ey f l ashi ng; G

Eave f l ashi ng; G

I ndi cat e t hi cknesses, di mensi ons, f ast eni ngs and anchor i ng met hods, expansi on j oi nt s, and ot her pr ovi s i ons necessar y f or t her mal expansi on and cont r act i on. Scal ed manuf act ur er ' s cat al og dat a may be submi t t ed f or f act or y f abr i cat ed i t ems.

SD- 11 Cl oseout Submi t t al s

Qual i t y Cont r ol Pl an

Submi t f or sheet met al wor k i n accor dance wi t h par agr aph ent i t l ed " Fi el d Qual i t y Cont r ol . "

1. 4 DELI VERY, HANDLI NG, AND STORAGE

Package and pr ot ect mat er i al s dur i ng shi pment . Uncr at e and i nspect mat er i al s f or damage, dampness, and wet - st or age st ai ns upon del i ver y t o t he j ob s i t e. Remove f r om t he si t e and r epl ace damaged mat er i al s t hat cannot be r est or ed t o l i ke- new condi t i on. Handl e sheet met al i t ems t o avoi d damage t o sur f aces, edges, and ends. St or e mat er i al s i n dr y, weat her - t i ght , vent i l at ed ar eas unt i l i mmedi at el y bef or e i nst al l at i on.

PART 2 PRODUCTS

2. 1 MATERIALS

Do not use l ead, l ead- coat ed met al , or gal vani zed st eel . Use any met al l i s t ed by SMACNA Ar ch. Manual f or a par t i cul ar i t em, unl ess ot her wi se speci f i ed or i ndi cat ed. Conf or m t o t he r equi r ement s speci f i ed and t o t he t hi cknesses and conf i gur at i ons est abl i shed i n SMACNA Ar ch. Manual f or t he mat er i al s. Di f f er ent i t ems need not be of t he same met al , except t hat i f copper i s sel ect ed f or any exposed i t em, al l exposed i t ems must be copper .

Fur ni sh sheet met al i t ems i n 8 t o 10 f oot l engt hs. Si ngl e pi eces l ess t han 8 f eet l ong may be used t o connect t o f act or y- f abr i cat ed i nsi de and out si de cor ner s, and at ends of r uns. Fact or y f abr i cat e cor ner pi eces wi t h mi ni mum 12 i nch l egs. Pr ovi de accessor i es and ot her i t ems essent i al

Apr i l 2019 Page 3 SECTI ON 07 60 00 t o compl et e t he sheet met al i nst al l at i on. Pr ovi de accessor i es made of t he same or compat i bl e mat er i al s as t he i t ems t o whi ch t hey ar e appl i ed.

Fabr i cat e sheet met al i t ems of t he mat er i al s speci f i ed bel ow and t o t he gage, t hi ckness, or wei ght shown i n Tabl e I at t he end of t hi s sect i on.

Pr ovi de sheet met al i t ems wi t h mi l l f i ni sh unl ess speci f i ed ot her wi se.

Wher e mor e t han one mat er i al i s l i s t ed f or a par t i cul ar i t em i n Tabl e I , each i s accept abl e and may be used except as f ol l ows:

2. 1. 1 Exposed Sheet Met al I t ems

Must be of t he same mat er i al . Consi der t he f ol l owi ng as exposed sheet met al : gut t er s, i ncl udi ng hanger s; downspout s; gr avel st ops and f asci as;

cap, val l ey, st eeped, base, and eave f l ashi ngs and r el at ed accessor i es.

2. 1. 2 Drainage

Do not use copper f or an exposed i t em i f dr ai nage f r om t hat i t em wi l l pass over exposed masonr y, st onewor k or ot her met al sur f aces. I n addi t i on t o t he met al s l i s t ed i n Tabl e I , l ead- coat ed copper may be used f or such items.

2. 1. 3 Copper , Sheet and St r i p

ASTM B370, col d- r ol l ed t emper , H 00 ( st andar d) .

2. 1. 4 Lead- Coat ed Copper Sheet

ASTM B101.

2. 1. 5 Lead Sheet

Mi ni mum wei ght 4 pounds per squar e f oot .

2. 1. 6 St eel Sheet , Zi nc- Coat ed ( Gal vani zed)

ASTM A653/ A653M.

2. 1. 6. 1 Finish

Exposed ext er i or i t ems of z i nc- coat ed st eel sheet must have a baked- on, f act or y- appl i ed col or coat i ng of pol yvi nyl i dene f l uor i de or ot her equi val ent f l uor ocar bon coat i ng appl i ed af t er met al subst r at es have been cl eaned and pr et r eat ed. Pr ovi de f i ni sh coat i ng dr y- f i l m t hi ckness of 0. 8 t o 1. 3 mi l s and col or as i ndi cat ed on t he dr awi ngs.

2. 1. 7 Zi nc Sheet and St r i p

ASTM B69, Type I , a mi ni mum of 0. 024 i nch t hi ck.

2. 1. 8 St ai nl ess St eel

ASTM A480/ A480M, Type 302 or 304, 2D Fi ni sh, f ul l y anneal ed, dead- sof t temper.

2. 1. 9 Al umi num Al l oy Sheet and Pl at e

ASTM B209 anodi zed col or as i ndi cat ed on t he dr awi ngs f or m al l oy, and t emper appr opr i at e f or use.

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2. 1. 9. 1 Alclad

When f abr i cat ed of al umi num, f abr i cat e t he i t ems Al c l ad 3003, Al c l ad 3004, Al c l ad 3005, c l ad on bot h s i des unl ess ot her wi se i ndi cat ed.

a. Gut t er s, downspout s, and hanger s

b. Gr avel st ops and f asci as

c. Fl ashi ng

2. 1. 9. 2 Finish

Exposed ext er i or sheet met al i t ems of al umi num must have a baked- on, f act or y- appl i ed col or coat i ng of pol yvi nyl i dene f l uor i de ( PVF2) or ot her equi val ent f l uor ocar bon coat i ng appl i ed af t er met al subst r at es have been cl eaned and pr et r eat ed. Pr ovi de f i ni sh coat i ng dr y- f i l m t hi ckness of 0. 8 t o 1. 3 mi l s and col or as i ndi cat ed on t he dr awi ngs.

2. 1. 10 Al umi num Al l oy, Ext r uded Bar s, Rods, Shapes, and Tubes

ASTM B221.

2. 1. 11 Solder

ASTM B32, 95- 5 t i n- ant i mony.

2. 1. 12 Pol yvi nyl Chl or i de Regl et

ASTM D1784, Type I I , Gr ade 1, Cl ass 14333- D, 0. 075 i nch mi ni mum t hi ckness.

2. 1. 13 Bi t umi nous Pl ast i c Cement

ASTM D4586/ D4586M, Type I .

2. 1. 14 Roof i ng Fel t

ASTM D226/ D226M Type I I .

2. 1. 15 Asphal t Pr i mer

ASTM D41/ D41M.

2. 1. 16 Fasteners

Use t he same met al or a met al compat i bl e wi t h t he i t em f ast ened. Use st ai nl ess st eel f ast ener s t o f ast en di ssi mi l ar mat er i al s.

PART 3 EXECUTI ON

3. 1 INSTALLATION

3. 1. 1 Met al Roof i ng

3. 1. 1. 1 St andi ng- seam Met hod

Make st andi ng seams par al l el wi t h s l ope of r oof . Fabr i cat e sheet s i nt o l ong l engt hs at shop by l ocki ng shor t di mensi ons t oget her and t hor oughl y sol der i ng j oi nt s t hus f or med. I n appl y i ng met al , t ur n up one edge of

Apr i l 2019 Page 5 SECTI ON 07 60 00 cour se at each si de seam at r i ght angl es 1. 5 i nch. Then i nst al l 2 by 3 i nch cl eat s spaced 12 i nch apar t by f ast eni ng one end of each cl eat t o r oof wi t h t wo one i nch l ong nai l s and f ol di ng r oof end back over nai l heads. Tur n end adj oi ni ng t ur ned- up si de seam up over upst andi ng edge of cour se. Tur n up adj oi ni ng edge of next cour se 1. 75 i nch and abut t i ng upst andi ng edges l ocked, t ur ned over , and f l at t ened agai nst one si de of st andi ng seam. Make st andi ng seams st r ai ght , r ounded neat l y at t he t op edges, and st and about one i nch above r oof deck. Al l sheet s must be same l engt h, except as r equi r ed t o compl et e r un or mai nt ai n pat t er n. Locat e t r ansver se j oi nt s of each panel hal f way bet ween j oi nt s i n adj acent sheet s. Al i gn j oi nt s of al t er nat e sheet s hor i zont al l y t o pr oduce uni f or m pat t er n, as shown i n SMACNA Ar ch. Manual .

3. 1. 2 Workmanship

Make l i nes 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 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 cont r act i on.

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. 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, Ar chi t ect ur al Sheet Met al Manual . 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 . Joi n sheet met al i t ems t oget her as shown i n Tabl e I I .

3. 1. 3 Nailing

Conf i ne nai l i ng of sheet met al gener al l y t o sheet met al havi ng a maxi mum wi dt h of 18 i nch. Conf i ne nai l i ng of f l ashi ng t o one edge onl y. Space nai l s evenl y not over 3 i nch on cent er and appr oxi mat el y 1/ 2 i nch f r om edge unl ess ot her wi se speci f i ed or i ndi cat ed. Face nai l i ng wi l l not be per mi t t ed. Wher e sheet met al i s appl i ed t o ot her t han wood sur f aces, i ncl ude i n shop dr awi ngs, t he l ocat i ons f or s l eeper s and nai l i ng st r i ps r equi r ed t o secur e t he wor k.

3. 1. 4 Cleats

Pr ovi de cl eat s f or sheet met al 18 i nch and over i n wi dt h. Space cl eat s evenl y not over 12 i nch on cent er unl ess ot her wi se speci f i ed or i ndi cat ed. Unl ess ot her wi se speci f i ed, pr ovi de cl eat s of 2 i nch wi de by 3 i nch l ong and of t he same mat er i al and t hi ckness as t he sheet met al bei ng i nst al l ed. Secur e one end of t he c l eat wi t h t wo nai l s and t he cl eat f ol ded back over t he nai l heads. Lock t he ot her end i nt o t he seam. Wher e t he f ast eni ng i s t o be made t o concr et e or masonr y, use scr ews and dr i ve i n expansi on shi el ds set i n concr et e or masonr y. Pr et i n c l eat s f or sol der ed seams.

3. 1. 5 Bol t s, Ri vet s, and Scr ews

I nst al l bol t s, r i vet s, and scr ews wher e i ndi cat ed or r equi r ed. Pr ovi de compat i bl e washer s wher e r equi r ed t o pr ot ect sur f ace of sheet met al and t o pr ovi de a wat er t i ght connect i on. Pr ovi de mechani cal l y f or med j oi nt s i n al umi num sheet s 0. 040 i nch or l ess i n t hi ckness.

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3. 1. 6 Seams

St r ai ght and uni f or m i n wi dt h and hei ght wi t h no sol der showi ng on t he face.

3. 1. 6. 1 St andi ng Seams

Not l ess t han one i nch hi gh, doubl e l ocked wi t hout sol der .

3. 1. 7 Soldering

Wher e sol der i ng i s speci f i ed, appl y t o copper , t er ne- coat ed st ai nl ess st eel , z i nc- coat ed st eel , and st ai nl ess st eel i t ems. Pr et i n edges of sheet met al bef or e sol der i ng i s begun. Seal t he j oi nt s i n al umi num sheet s of 0. 040 i nch or l ess i n t hi ckness wi t h speci f i ed seal ant s. Do not sol der aluminum.

3. 1. 7. 1 Edges

Scr ape or wi r e- br ush t he edges of l ead- coat ed mat er i al t o be sol der ed t o pr oduce a br i ght sur f ace. Fl ux br ush t he seams i n bef or e sol der i ng.

Tr eat wi t h sol der i ng aci d f l ux t he edges of st ai nl ess st eel t o be pr et i nned. Seal t he j oi nt s i n al umi num sheet s of 0. 040 i nch or l ess i n t hi ckness wi t h speci f i ed seal ant s. Do not sol der al umi num.

3. 1. 8 Wel di ng and Mechani cal Fast eni ng

Use wel di ng f or al umi num of t hi ckness gr eat er t han 0. 040 i nch. Al umi num

0. 040 i nch or l ess i n t hi ckness must be but t ed and t he space backed wi t h f or med f l ashi ng pl at e; or l ock j oi ned, mechani cal l y f ast ened, and f i l l ed wi t h seal ant as r ecommended by t he al umi num manuf act ur er .

3. 1. 8. 1 Wel di ng of Al umi num

Use wel di ng of t he i ner t gas, shi el d- ar c t ype. For pr ocedur es, appear ance and qual i t y of wel ds, and t he met hods used i n cor r ect i ng wel di ng wor k, conf or m t o AWS D1. 2/ D1. 2M.

3. 1. 8. 2 Mechani cal Fast eni ng of Al umi num

Use No. 12, al umi num al l oy, sheet met al scr ews or ot her sui t abl e al umi num al l oy or st ai nl ess st eel f ast ener s. Dr i ve f ast ener s i n hol es made wi t h a No. 26 dr i l l i n secur i ng s i de l aps, end l aps, and f l ashi ngs. Space f ast ener s 12 i nch maxi mum on cent er . Wher e end l ap f ast ener s ar e r equi r ed t o i mpr ove cl osur e, l ocat e t he end l ap f ast ener s not mor e t han 2 i nch f r om t he end of t he over l appi ng sheet .

3. 1. 9 Pr ot ect i on f r om Cont act wi t h Di ssi mi l ar Mat er i al s

3. 1. 9. 1 Copper or Copper - bear i ng Al l oys

Pai nt wi t h heavy- bodi ed bi t umi nous pai nt sur f aces i n cont act wi t h di ssi mi l ar met al , or separ at e t he sur f aces by means of moi st ur epr oof bui l di ng f el t s.

3. 1. 9. 2 Aluminum

Do not al l ow al umi num sur f aces i n di r ect cont act wi t h ot her met al s except st ai nl ess st eel , z i nc, or z i nc coat i ng. Wher e al umi num cont act s anot her

Apr i l 2019 Page 7 SECTI ON 07 60 00 met al , pai nt t he di ssi mi l ar met al wi t h a pr i mer f ol l owed by t wo coat s of al umi num pai nt . Wher e dr ai nage f r om a di ssi mi l ar met al passes over al umi num, pai nt t he di ssi mi l ar met al wi t h a non- l ead pi gment ed pai nt .

3. 1. 9. 3 Met al Sur f aces

Pai nt sur f aces i n cont act wi t h mor t ar , concr et e, or ot her masonr y mat er i al s wi t h al kal i - r esi st ant coat i ngs such as heavy- bodi ed bi t umi nous paint.

3. 1. 9. 4 Wood or Ot her Absor pt i ve Mat er i al s

Pai nt sur f aces t hat may become r epeat edl y wet and i n cont act wi t h met al wi t h t wo coat s of al umi num pai nt or a coat of heavy- bodi ed bi t umi nous paint.

3. 1. 10 Expansi on and Cont r act i on

Pr ovi de expansi on and cont r act i on j oi nt s at not mor e t han 32 f oot i nt er val s f or al umi num and at not mor e t han 40 f oot i nt er val s f or ot her met al s. Pr ovi de an addi t i onal j oi nt wher e t he di st ance bet ween t he l ast expansi on j oi nt and t he end of t he cont i nuous r un i s mor e t han hal f t he r equi r ed i nt er val . Space j oi nt s evenl y. Joi n ext r uded al umi num gr avel st ops and f asci as by expansi on and cont r act i on j oi nt s spaced not mor e t han 12 f eet apar t .

3. 1. 11 Base Fl ashi ng ( For shi ngl e r oof s onl y)

Lay t he base f l ashi ngs wi t h each cour se of t he r oof cover i ng, shi ngl e f ashi on, wher e pr act i cabl e, wher e s l oped r oof s abut chi mneys, cur bs, wal l s, or ot her ver t i cal sur f aces. Ext end up ver t i cal sur f aces of t he f l ashi ng not l ess t han 8 i nch and not l ess t han 4 i nch under t he r oof cover i ng. Wher e f i ni sh wal l cover i ngs f or m a count er f l ashi ng, ext end t he ver t i cal l eg of t he f l ashi ng up behi nd t he appl i ed wal l cover i ng not l ess t han 6 i nch. Over l ap t he f l ashi ng st r i ps or shi ngl es wi t h t he pr evi ousl y l ai d f l ashi ng not l ess t han 3 i nch. Fast en t he st r i ps or shi ngl es at t hei r upper edge t o t he deck. Hor i zont al f l ashi ng at ver t i cal sur f aces must ext end ver t i cal l y above t he r oof sur f ace and f ast ened at t hei r upper edge t o t he deck a mi ni mum of 6 i nch on cent er wi t h l ar ge headed al umi num r oof i ng nai l s a mi ni mum of 2- i nch l ap of any sur f ace. Sol der end l aps and pr ovi de f or expansi on and cont r act i on. Ext end t he met al f l ashi ng over cr i cket s at t he up- sl ope si de of cur bs and si mi l ar ver t i cal sur f aces ext endi ng t hr ough sl opi ng r oof s, t he met al f l ashi ngs. Ext end t he met al f l ashi ngs ont o t he r oof cover i ng not l ess t han 4. 5 i nch at t he l ower s i de of dor mer wal l s and si mi l ar ver t i cal sur f aces ext endi ng t hr ough t he r oof decks. I nst al l and f i t t he f l ashi ngs so as t o be compl et el y weat her t i ght . Pr ovi de f act or y- f abr i cat ed base f l ashi ng f or i nt er i or and ext er i or cor ner s. Do not use met al base f l ashi ng on bui l t - up r oof i ng.

3. 1. 12 Counterflashing

Except wher e i ndi cat ed or speci f i ed ot her wi se, i nser t count er f l ashi ng i n r egl et s l ocat ed f r om 9 t o 10 i nch above r oof decks, ext end down ver t i cal sur f aces over upt ur ned ver t i cal l eg of base f l ashi ngs not l ess t han 3 i nch.

Fol d t he exposed edges of count er f l ashi ngs 1/ 2 i nch. Wher e st epped count er f l ashi ngs ar e r equi r ed, t hey may be i nst al l ed i n shor t l engt hs a mi ni mum8 i nch by 10 i nch or may be of t he pr ef or med one- pi ece t ype.

Pr ovi de end l aps i n count er f l ashi ngs not l ess t han 3 i nch and make i t weat her t i ght wi t h pl ast i c cement . Do not make l engt hs of met al

Apr i l 2019 Page 8 SECTI ON 07 60 00 count er f l ashi ngs exceed 10 f eet . For m t he f l ashi ngs t o t he r equi r ed shapes bef or e i nst al l at i on. Fact or y- f or m t he cor ner s not l ess t han 12 i nch f r om t he angl e. Secur e t he f l ashi ngs i n t he r egl et s wi t h l ead wedges and space not mor e t han 18 i nch apar t ; on st ai r / el evat or t ower sand shor t r uns, pl ace wedges cl oser t oget her . Fi l l caul ked- t ype r egl et s or r aked j oi nt s whi ch r ecei ve count er f l ashi ng wi t h caul k i ng compound. Tur n up t he conceal ed edge of count er f l ashi ngs bui l t i nt o masonr y or concr et e wal l s not l ess t han 1/ 4 i nch and ext end not l ess t han 2 i nch i nt o t he wal l s.

I nst al l count er f l ashi ng t o pr ovi de a spr i ng act i on agai nst base f l ashi ng.

Wher e bi t umi nous base f l ashi ngs ar e pr ovi ded, ext end down t he count er f l ashi ng as c l ose as pr act i cabl e t o t he t op of t he cant st r i p. Fact or y f or m count er f l ashi ng t o pr ovi de spr i ng act i on agai nst t he base f l ashi ng.

3. 1. 13 Met al Regl et s

Pr ovi de f act or y f abr i cat ed caul ked t ype or f r i c t i on t ype r egl et s wi t h a mi ni mum openi ng of 1/ 4 i nch and a dept h of 1 1/ 4 i nch, as appr oved.

3. 1. 13. 1 Caul ked Regl et s

Pr ovi de wi t h r ounded edges and met al st r ap br acket s or ot her anchor s f or secur i ng t o t he concr et e f or ms. Pr ovi de r egl et s wi t h a cor e t o pr ot ect t hem f r om i nj ur y dur i ng t he i nst al l at i on. Pr ovi de bui l t - up mi t er ed cor ner pi eces f or i nt er nal and ext er nal angl es. Wedge t he f l ashi ng i n t he r egl et s wi t h l ead wedges ever y 18 i nch, caul ked f ul l and sol i d wi t h an appr oved compound.

3. 1. 13. 2 Fr i ct i on Regl et s

Pr ovi de wi t h f l ashi ng r ecei v i ng s l ot s not l ess t han 5/ 8 i nch deep, one i nch j oi nt i ng t ongues, and upper and l ower anchor i ng f l anges i nst al l ed at 24 i nch maxi mum snapl ock r ecei ver . I nser t t he f l ashi ng t he f ul l dept h of t he s l ot and l ock by i ndent at i ons made wi t h a dul l - poi nt ed t ool , wedges, and f i l l ed wi t h a seal ant . For f r i c t i on r egl et s, i nst al l f l ashi ng snapl ock r ecei ver s at 24 i nch on cent er maxi mum. When t he f l ashi ng has been i nser t ed t he f ul l dept h, caul k t he s l ot and l ock wi t h wedges and f i l l wi t h seal ant .

3. 1. 14 Pol yvi nyl Chl or i de Regl et s Tempor ar y Const r uct i on I nst al l at i on

Ri gi d pol yvi nyl chl or i de r egl et s ASTM D1784, Type I I , Gr ade 1, Cl ass 14333- D, 0. 075 i nch mi ni mum t hi ckness may be pr ovi ded i n l i eu of met al r egl et s f or t empor ar y const r uct i on.

3. 1. 15 Gr avel St ops and Fasci as

Pr ef abr i cat e i n t he shapes and si zes i ndi cat ed and i n l engt hs not l ess t hat 8 f eet . Ext end f l ange at l east 4 i nch ont o r oof i ng. Pr ovi de pr ef abr i cat ed, mi t er ed cor ner s i nt er nal and ext er nal cor ner s. I nst al l gr avel st ops and f asci as af t er al l pl i es of t he r oof i ng membr ane have been appl i ed, but bef or e t he f l ood coat of bi t umen i s appl i ed. Pr i me r oof f l ange of gr avel st ops and f asci as on bot h s i des wi t h an asphal t pr i mer .

Af t er pr i mer has dr i ed, set f l ange on r oof i ng membr ane and st r i p- i n. Nai l f l ange secur el y t o wood nai l er wi t h l ar ge- head, bar bed- shank r oof i ng nai l s

1. 5 i nch l ong spaced not mor e t han 3 i nch on cent er , i n t wo st agger ed r ows.

3. 1. 15. 1 Edge St r i p

Hook t he l ower edge of f asci as at l east 3/ 4 i nch over a cont i nuous st r i p

Apr i l 2019 Page 9 SECTI ON 07 60 00 of t he same mat er i al bent out war d at an angl e not mor e t han 45 degr ees t o f or m a dr i p. Nai l hook st r i p t o a wood nai l er at 6 i nchmaxi mum on cent er . Wher e f ast eni ng i s made t o concr et e or masonr y, use scr ews spaced 12 i nch on cent er dr i ven i n expansi on shi el ds set i n t he concr et e or masonr y. Wher e hor i zont al wood nai l er s ar e s l ot t ed t o pr ovi de f or i nsul at i on vent i ng, i nst al l st r i ps t o pr event obst r uct i on of vent s l ot s.

Wher e necessar y, i nst al l st r i ps over 1/ 16 i nch t hi ck compat i bl e spacer or washers.

3. 1. 15. 2 Joints

Leave open t he sect i on ends of gr avel st ops and f asci as 1/ 4 i nch and backed wi t h a f or med f l ashi ng pl at e, mechani cal l y f ast ened i n pl ace and l appi ng each sect i on end a mi ni mum of 4 i nch set l aps i n pl ast i c cement .

Face nai l i ng wi l l not be per mi t t ed. I nst al l pr ef abr i cat ed al umi num gr avel st ops and f asci as i n accor dance wi t h t he manuf act ur er ' s pr i nt ed i nst r uct i ons and det ai l s.

3. 1. 16 Met al Dr i p Edge

Pr ovi de a met al dr i p edge, desi gned t o al l ow wat er r un- of f t o dr i p f r ee of under l y i ng const r uct i on, at eaves and r akes pr i or t o t he appl i cat i on of r oof i ng shi ngl es. Appl y di r ect l y on t he wood deck at t he eaves and over t he under l ay al ong t he r akes. Ext end back f r om t he edge of t he deck not mor e t han 3 i nch and secur e wi t h compat i bl e nai l s spaced not mor e t han 10 i nch on cent er al ong upper edge.

3. 1. 17 Gutters

The hung t ype of shape i ndi cat ed and suppor t ed on under si de by br acket s t hat per mi t f r ee t her mal movement of t he gut t er . Pr ovi de gut t er s i n s i zes i ndi cat ed compl et e wi t h mi t er ed cor ner s, end caps, out l et s, br acket s, and ot her accessor i es necessar y f or i nst al l at i on. Bead wi t h hemmed edge or r ei nf or ce t he out er edge of gut t er wi t h a st i f f eni ng bar not l ess t han 3/ 4 by 3/ 16 i nch of mat er i al compat i bl e wi t h gut t er . Fabr i cat e gut t er s i n sect i ons not l ess t han 8 f eet . Lap t he sect i ons a mi ni mum of one i nch i n t he di r ect i on of f l ow or pr ovi de wi t h conceal ed spl i ce pl at e 6 i nch mi ni mum. Joi n t he gut t er s, ot her t han al umi num, by r i vet ed and sol der ed j oi nt s. Joi n al umi num gut t er s wi t h r i vet ed seal ed j oi nt s. Pr ovi de expansi on- t ype sl i p j oi nt s mi dway bet ween out l et s. I nst al l gut t er s bel ow sl ope l i ne of t he r oof so t hat snow and i ce can sl i de c l ear . Suppor t gut t er s on adj ust abl e hanger s spaced not mor e t han 30 i nch on cent er by cont i nuous cl eat s Adj ust gut t er s t o s l ope uni f or ml y t o out l et s, wi t h hi gh poi nt s occur r i ng mi dway bet ween out l et s. Fabr i cat e hanger s and f ast eni ngs f r om met al s.

3. 1. 18 Downspouts

Space suppor t s f or downspout s accor di ng t o t he manuf act ur er ' s r ecommendat i on f or t he masonr y or st eel subst r at e. Types, shapes and si zes ar e i ndi cat ed. Pr ovi de compl et e i ncl udi ng el bows and of f set s.

Pr ovi de downspout s i n appr oxi mat el y 10 f oot l engt hs. Pr ovi de end j oi nt s t o t el escope not l ess t han 1/ 2 i nch and l ock l ongi t udi nal j oi nt s. Pr ovi de gut t er out l et s wi t h wi r e bal l st r ai ner s f or each out l et . Pr ovi de st r ai ner s t o f i t t i ght l y i nt o out l et s and be of t he same mat er i al used f or gut t er s. Keep downspout s not l ess t han one i nch away f r om wal l s. Fast en t o t he wal l s at t op, bot t om, and at an i nt er medi at e poi nt not t o exceed 5 f eet on cent er wi t h l eader st r aps or conceal ed r ack- and- pi n t ype f ast ener s. For m st r aps and f ast ener s of met al compat i bl e wi t h t he

Apr i l 2019 Page 10 SECTI ON 07 60 00 downspouts.

3. 1. 18. 1 Terminations

Neat l y f i t i nt o t he dr ai nage connect i on t he downspout s t er mi nat i ng i n dr ai nage l i nes and f i l l t he j oi nt s wi t h a por t l and cement mor t ar cap sl oped away f r om t he downspout . Pr ovi de downspout s t er mi nat i ng i n spl ash bl ocks wi t h el bow- t ype f i t t i ngs. Pr ovi de spl ash pans as speci f i ed.

3. 1. 19 Fl ashi ng f or Roof Dr ai ns

Pr ovi de a 30 i nch squar e sheet i ndi cat ed. Taper i nsul at i on t o dr ai n f r om 24 i nch out . Set f l ashi ng on f i ni shed f el t s i n a f ul l bed of asphal t r oof cement, ASTM D4586/ D4586M. Heavi l y coat t he dr ai n f l ashi ng r i ng wi t h asphal t r oof cement . Cl amp t he r oof membr ane, f l ashi ng sheet , and st r i ppi ng f el t i n t he dr ai n c l ampi ng r i ng. Secur e c l amps so t hat f el t s and dr ai n f l ashi ng ar e f r ee of wr i nkl es and f ol ds. Ret r of i t r oof dr ai ns must conf or m t o ANSI / SPRI RD- 1.

3. 1. 20 Scuppers

Li ne i nt er i or of scupper openi ngs wi t h sheet met al . Ext end t he l i ni ng t hr ough and pr oj ect out s i de of t he wal l t o f or m a dr i p on t he bot t om edge and f or m t o r et ur n not l ess t han one i nch agai nst t he f ace of t he out si de wal l at t he t op and si des. Fol d out si de edges under 1/ 2 i nch on al l s i des. Pr ovi de t he per i met er of t he l i ni ng appr oxi mat el y 1/ 2 i nch l ess t han t he per i met er of t he scupper . Joi n t he t op and si des of t he l i ni ng on t he r oof deck si de t o a c l osur e f l ange by a l ocked and sol der ed j oi nt .

Joi n t he bot t om edge by a l ocked and sol der ed j oi nt t o t he c l osur e f l ange, wher e r equi r ed, f or m wi t h a r i dge t o act as a gr avel st op ar ound t he scupper i nl et . Pr ovi de sur f aces t o r ecei ve t he scupper l i ni ng and coat wi t h bi t umi nous pl ast i c cement .

3. 1. 21 Conduct or Heads

Type i ndi cat ed and f abr i cat ed of t he same mat er i al as t he downspout s. Set t he dept h of t op openi ng equal t o t wo- t hi r ds of t he wi dt h. Pr ovi de out l et t ubes not l ess t han 4 i nch l ong. Fl at - l ock sol der t he seams. Wher e conduct or heads ar e used i n conj unct i on wi t h scupper s, set t he conduct or a mi ni mum of 2 i nch wi der t han t he scupper . At t ach conduct or heads t o t he wal l wi t h masonr y f ast ener s, and l oose- l ock t o pr ovi de conduct or heads wi t h scr eens of t he same mat er i al . Secur el y f ast en scr eens t o t he heads.

3. 1. 22 Spl ash Pans

I nst al l spl ash pans wher e downspout s di schar ge on r oof sur f aces and at ot her l ocat i ons as i ndi cat ed. Unl ess ot her wi se shown, pr ovi de pans not l ess t han 24 i nch l ong by 18 i nch wi de wi t h met al r i bs acr oss t he bot t om of t he pan. For m t he si des of t he pan wi t h ver t i cal baf f l es not l ess t han one i nch hi gh i n t he f r ont , and 4 i nch hi gh i n t he back doubl ed over and f or med cont i nuous wi t h hor i zont al r oof f l anges not l ess t han 4 i nch wi de.

Bend t he r ear f l ange of t he pan t o cont our of cant st r i p and ext end up 6 i nch under t he s i de wal l cover i ng or t o hei ght of base f l ashi ng under count er f l ashi ng. Bed t he pans and r oof f l anges i n pl ast i c bi t umi nous cement and st r i p- f l ash as speci f i ed.

3. 1. 23 Open Val l ey Fl ashi ng

Pr ovi de val l ey f l ashi ng f r ee of l ongi t udi nal seams, of wi dt h suf f i c i ent t o

Apr i l 2019 Page 11 SECTI ON 07 60 00 ext end not l ess t han 6 i nch under t he r oof cover i ng on each si de. Pr ovi de a 1/ 2 i nch f ol d on each si de of t he val l ey f l ashi ng. Lap t he sheet s not l ess t han 6 i nch i n t he di r ect i on of f l ow and secur e t o r oof i ng const r uct i on wi t h c l eat s at t ached t o t he f ol d on each si de. Nai l t he t ops of sheet s t o r oof sheat hi ng. Space t he cl eat s not mor e t han 12 i nch on cent er . Pr ovi de exposed f l ashi ng not l ess t han 4 i nch i n wi dt h at t he t op and i ncr ease one i nch i n wi dt h f or each addi t i onal 8 f eet i n l engt h.

Wher e t he sl ope of t he val l ey i s 4. 5 i nch or l ess per f oot , or t he i nt er sect i ng r oof s ar e on di f f er ent s l opes, pr ovi de an i nver t ed V- j oi nt , one i nch hi gh, al ong t he cent er l i ne of t he val l ey; and ext end t he edge of t he val l ey sheet s 8 i nch under t he r oof cover i ng on each si de.

Val l ey f l ashi ng f or asphal t shi ngl e r oof s i s speci f i ed i n sect i on 07 31 13

ASPHALT SHI NGLES.

3. 1. 24 Eave Fl ashi ng

One pi ece i n wi dt h, appl i ed i n 8 t o 10 f oot l engt hs wi t h expansi on j oi nt s spaced as speci f i ed i n par agr aph ent i t l ed " Expansi on and Cont r act i on. " Pr ovi de a 3/ 4 i nch cont i nuous f ol d i n t he upper edge of t he sheet t o engage cl eat s spaced not mor e t han 10 i nch on cent er . Locat e t he upper edge of f l ashi ng not l ess t han 18 i nch f r om t he out si de f ace of t he bui l di ng, measur ed al ong t he r oof s l ope. Fol d l ower edge of t he f l ashi ng over and l oose- l ock i nt o a cont i nuous edge st r i p on t he f asci a. Wher e eave f l ashi ng i nt er sect s met al val l ey f l ashi ng, secur e wi t h one i nch f l at l ocked j oi nt s wi t h c l eat s t hat ar e 10 i nch on cent er .

3. 1. 25 Sheet Met al Cover i ng on Fl at , Sl oped, or Cur ved Sur f aces

Except as speci f i ed or i ndi cat ed ot her wi se, cover and f l ash al l mi nor f l at , s l oped, or cur ved sur f aces such as cr i cket s, bul kheads, dor mer s and smal l decks wi t h met al sheet s of t he mat er i al used f or f l ashi ng; maxi mum si ze of sheet s, 16 by 18 i nch. Fast en sheet s t o sheat hi ng wi t h met al c l eat s. Lock seams and sol der . Lock al umi num seams as r ecommended by al umi num manuf act ur er . Pr ovi de an under l ayment of r oof i ng f el t f or al l sheet met al cover i ng.

3. 1. 26 Expansi on Joi nt s

Pr ovi de expansi on j oi nt s f or r oof s, wal l s, and f l oor s as i ndi cat ed.

Pr ovi de expansi on j oi nt s i n cont i nuous sheet met al at 40 f oot i nt er val s f or copper and st ai nl ess st eel and at 32 f oot i nt er val s f or al umi num.

Pr ovi de evenl y spaced j oi nt s. Pr ovi de an addi t i onal j oi nt wher e t he di st ance bet ween t he l ast expansi on j oi nt and t he end of t he cont i nuous r un i s mor e t han hal f t he r equi r ed i nt er val spaci ng. Conf or m t o t he r equi r ement s of Tabl e I .

3. 1. 26. 1 Roof Expansi on Joi nt s

Consi st of cur b wi t h wood nai l i ng member s on each si de of j oi nt , bi t umi nous base f l ashi ng, met al count er f l ashi ng, and met al j oi nt cover .

Bi t umi nous base f l ashi ng i s speci f i ed i n Roof i ng Sect i on. Pr ovi de count er f l ashi ng as speci f i ed i n par agr aph " Count er f l ashi ng, " except as f ol l ows: Pr ovi de count er f l ashi ng wi t h ver t i cal l eg of sui t abl e dept h t o enabl e f or mi ng i nt o a hor i zont al cont i nuous cl eat . Secur e t he i nner edge t o t he nai l i ng member . Make t he out er edge pr oj ect i on not l ess t han one i nch f or f l ashi ng on one si de of t he expansi on j oi nt and be l ess t han t he wi dt h of t he expansi on j oi nt pl us one i nch f or f l ashi ng on t he ot her s i de of t he j oi nt . Hook t he expansi on j oi nt cover over t he pr oj ect i ng out er

Apr i l 2019 Page 12 SECTI ON 07 60 00 edges of count er f l ashi ng. Pr ovi de r oof j oi nt wi t h a j oi nt cover of t he wi dt h i ndi cat ed. Hook and l ock one edge of t he j oi nt cover over t he shor t er pr oj ect i ng f l ange of t he cont i nuous cl eat , and t he ot her edge hooked over and l oose l ocked wi t h t he l onger pr oj ect i ng f l ange. Joi nt s ar e speci f i ed i n Tabl e I I .

3. 1. 26. 2 Fl oor and Wal l Expansi on Joi nt s

Pr ovi de U- shape wi t h ext ended f l anges f or expansi on j oi nt s i n concr et e and masonr y wal l s and i n f l oor s l abs.

3. 1. 27 Fl ashi ng at Roof Penet r at i ons and Equi pment Suppor t s

Pr ovi de met al f l ashi ng f or al l pi pes, duct s, and condui t s pr oj ect i ng t hr ough t he r oof sur f ace and f or equi pment suppor t s, guy wi r e anchor s, and si mi l ar i t ems suppor t ed by or at t ached t o t he r oof deck. Goose- necks, r ai nhoods, power r oof vent i l at or s, and si mi l ar i t ems as i ndi cat ed on t he drawings.

3. 1. 28 Si ngl e Pi pe Vent s

See Tabl e I , f oot not e ( d) . Set f l ange of s l eeve i n bi t umi nous pl ast i c cement and nai l 3 i nch on cent er . Bend t he t op of s l eeve over and ext end down i nt o t he vent pi pe a mi ni mum of 2 i nch. For l ong r uns or l ong r i ses above t he deck, wher e i t i s i mpr act i cal t o cover t he vent pi pe wi t h l ead, use a t wo- pi ece f or med met al housi ng. Set met al housi ng wi t h a met al s l eeve havi ng a 4 i nch r oof f l ange i n bi t umi nous pl ast i c cement and nai l ed 3 i nch on cent er . Ext end sl eeve a mi ni mum of 8 i nch above t he r oof deck and l apped a mi ni mum of 3 i nch by a met al hood secur ed t o t he vent pi pe by a dr aw band. Seal t he ar ea of hood i n cont act wi t h vent pi pe wi t h an appr oved seal ant .

3. 1. 29 St epped Fl ashi ng

St epped f l ashi ng shal l be i nst al l ed wher e sl opi ng r oof s sur f aced wi t h shi ngl es abut ver t i cal sur f aces. Separ at e pi eces of base f l ashi ng shal l be pl aced i n al t er nat e shi ngl e cour ses.

3. 1. 30 Copings

Pr ovi de copi ng usi ng pr e- f i ni shed gal vani zed st eel 8 or 10 f eet l ong.

Pr ovi de cont i nuous cl eat of mi ni mum 22 gauge gal vani zed met al . I nst al l wi t h seal ed l ap j oi nt s as i ndi cat ed.

3. 2 PAINTING

Fi el d- pai nt sheet met al f or separ at i on of di ssi mi l ar mat er i al s.

3. 2. 1 Al umi num Sur f aces

Shal l be sol vent c l eaned and gi ven one coat of z i nc- mol ybdat e pr i mer and one coat of al umi num pai nt .

3. 3 CLEANING

Cl ean exposed sheet met al wor k at compl et i on of i nst al l at i on. Remove gr ease and oi l f i l ms, 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- cl ean. Fr ee t he exposed met al sur f aces of dent s, cr eases, waves, scr at ch mar ks, and sol der or wel d mar ks.

Apr i l 2019 Page 13 SECTI ON 07 60 00

3. 4 REPAI RS TO 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 i n accor dance wi t h t he manuf act ur er ' s pr i nt ed i nst r uct i ons and as appr oved. Repai r damaged sur f aces caused by scr at ches, bl emi shes, and var i at i ons of col or and sur f ace t ext ur e. Repl ace i t ems whi ch cannot be repaired.

3. 5 FI ELD QUALI TY CONTROL

Est abl i sh and mai nt ai n a Qual i t y Cont r ol Pl an f or sheet met al used i n conj unct i on wi t h r oof i ng t o assur e compl i ance of t he i nst al l ed sheet met al wor k wi t h t he cont r act r equi r ement s. Remove wor k t hat i s not i n compl i ance wi t h t he cont r act and r epl ace or cor r ect . I ncl ude qual i t y cont r ol , but not be l i mi t ed t o, t he f ol l owi ng:

a. Obser vat i on of envi r onment al condi t i ons; number and ski l l l evel of sheet met al wor ker s; condi t i on of subst r at e.

b. Ver i f i cat i on t hat speci f i ed mat er i al i s pr ovi ded and i nst al l ed.

c. I nspect i on of sheet met al wor k, f or pr oper s i ze( s) and t hi ckness( es) , f ast eni ng and j oi ni ng, and pr oper i nst al l at i on.

3. 5. 1 Procedure

Submi t f or appr oval pr i or t o st ar t of r oof i ng wor k. I ncl ude a checkl i st of poi nt s t o be obser ved. Document t he act ual qual i t y cont r ol obser vat i ons and i nspect i ons. Fur ni sh a copy of t he document at i on t o t he Cont r act i ng Of f i cer at t he end of each day.

TABLE I . SHEET METAL WEI GHTS, THI CKNESSES, AND GAGES

Sheet Met al I t ems Aluminum, inch

Stainless Steel, inch

Terne-Coated Stainless Steel, inch

Zinc-Coated Steel, U. S. St d.

Gage

Bui l di ng Expansi on Joi nt s

Cover .032 .015 .015 24

Wat er st op- bel l ows or f l anged, U- t ype. - .015 .015 -

Downspout s and l eader s .032 .015 .015 24

Apr i l 2019 Page 14 SECTI ON 07 60 00

TABLE I . SHEET METAL WEI GHTS, THI CKNESSES, AND GAGES

Sheet Met al I t ems Aluminum, inch

Stainless Steel, inch

Terne-Coated Stainless Steel, inch

Zinc-Coated Steel, U. S. St d.

Gage

Downspout c l i ps and anchor s .040 clip .125 anchor

Downspout st r aps, 2- i nch .060 .050 - -

Conduct or heads .032 .015 .015 -

Scupper l i ni ng .032 .015 .015 -

St r ai ner s, wi r e di amet er or gage .144 diameter

.109 diameter

Flashings:

Base .040 .018 .018 24

Cap ( Count er - f l ashi ng) .032 .015 .015 26

Eave - .015 .015 24

Stepped .032 .015 .015 -

Valley .032 .015 .015 -

Roof dr ai n ( b)

Pi pe vent s l eave ( d)

Gr avel st ops and f asci as:

Extrusions .075 - - -

Sheet s, smoot h .050 .018 .018 24

Edge st r i p .050 .025 - -

Gutters:

Gut t er sect i on ( up t o 6" x6" ) .032 .015 .015 24

Cont i nuous cl eat .032 .015 .015 24

Apr i l 2019 Page 15 SECTI ON 07 60 00

TABLE I . SHEET METAL WEI GHTS, THI CKNESSES, AND GAGES

Sheet Met al I t ems Aluminum, inch

Stainless Steel, inch

Terne-Coated Stainless Steel, inch

Zinc-Coated Steel, U. S. St d.

Gage

Hanger s, di mensi ons 1 i nch by . 080 inch (c)

1 i nch by . 037 inch

Joi nt Cover pl at es ( See Tabl e I I ) .032 .015 .015 24

Reglets - .010 .010 -

Spl ash pans .040 .018 .018 -

( a) Br ass.

( b) Lead wei ghi ng 4 pounds per squar e f oot .

( c) Tempor ar y r egl et s may be pol yvi nyl chl or i de.

( d) 2. 5 pound mi ni mum l ead sl eeve wi t h 4 i nch f l ange. Wher e l ead sl eeve i s i mpr act i cal , r ef er t o par agr aph ent i t l ed " Si ngl e Pi pe Vent s" f or opt i onal mat er i al .

TABLE I I . SHEET METAL JOI NTS

TYPE OF JOI NT

I t em Desi gnat i on Copper , Ter ne- Coat ed St ai nl ess St eel , Zi nc- Coat ed St eel and St ai nl ess St eel

Aluminum Remarks

Joi nt cap f or bui l di ng expansi on seam, cl eat ed j oi nt at r oof

1. 25 i nch si ngl e l ock, st andi ng seam, cleated

1. 25 i nch si ngl e l ock, st andi ng

Flashings

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TABLE I I . SHEET METAL JOI NTS

TYPE OF JOI NT

I t em Desi gnat i on Copper , Ter ne- Coat ed St ai nl ess St eel , Zi nc- Coat ed St eel and St ai nl ess St eel

Aluminum Remarks

Base One i nch 3 i nch l ap f or expansi on j oi nt

One i nch f l at l ocked, sol der ed;

seal ed; 3 i nch l ap f or expansi on j oi nt

Al umi num pr oducer ' s r ecommended har d set t i ng seal ant f or l ocked al umi num j oi nt s. Fi l l each met al expansi on j oi nt wi t h a j oi nt seal i ng compound compound.

Cap- i n r egl et 3 i nch l ap 3 i nch l ap Seal gr oove wi t h j oi nt seal i ng compound.

Reglets But t j oi nt -- Seal r egl et gr oove wi t h j oi nt seal i ng compound.

Eave One i nch f l at l ocked, c l eat ed. One i nch l oose l ocked, seal ed expansi on j oi nt , cleated.

One i nch f l at l ocked, l ocked, c l eat ed one i nch l oose l ocked, seal ed expansi on j oi nt s, c l eat ed

Same as base flashing.

Stepped 3 i nch l ap 3 i nch l ap --

Valley 6 i nch l ap cl eat ed 6 i nch l ap cl eat ed --

Edge st r i p Butt Butt --

Gr avel st ops:

Extrusions -- But t wi t h 1/ 2 i nch space

Use sheet f l ashi ng beneat h and a cover plate

Sheet , smoot h But t wi t h 1/ 4 i nch space

But t wi t h 1/ 4 i nch space

Use sheet f l ashi ng backup pl at e.

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TABLE I I . SHEET METAL JOI NTS

TYPE OF JOI NT

I t em Desi gnat i on Copper , Ter ne- Coat ed St ai nl ess St eel , Zi nc- Coat ed St eel and St ai nl ess St eel

Aluminum Remarks

Sheet , cor r ugat ed But t wi t h 1/ 4 i nch space

But t wi t h 1/ 4 i nch space

Use sheet f l ashi ng beneat h and a cover pl at e or a combi nat i on uni t

Gutters 1. 5 i nch l ap, r i vet ed and sol der ed

One i nch f l at l ocked r i vet ed and sealed

Al umi num pr oducer s r ecommended har d set t i ng seal ant f or l ocked al umi num joints.

( a) Pr ovi de a 3 i nch l ap el ast omer i c f l ashi ng wi t h manuf act ur er ' s r ecommended sealant.

( b) Seal Pol yvi nyl chl or i de r egl et wi t h manuf act ur er ' s r ecommended seal ant .

- - End of Sect i on - -

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