07 54 19.pdf

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

SECTI ON 07 54 19

POLYVI NYL- CHLORI DE ROOFI NG

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 NATI ONAL STANDARDS I NSTI TUTE ( ANSI )

ANSI / SPRI ES- 1 ( 2003) Wi nd Desi gn St andar d f or Edge Syst ems Used wi t h Low Sl ope Roof i ng Syst ems

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

AMERI CAN SOCI ETY OF SAFETY ENGI NEERS ( ASSE/ SAFE)

ASSE/ SAFE A10. 24 ( 2014) Roof i ng - Saf et y Requi r ement s of Low- Sl oped Roof s

ASPHALT ROOFI NG MANUFACTURER' S ASSOCI ATI ON ( ARMA)

ARMA PMBRG98 ( 1998) Qual i t y Cont r ol Gui del i ne f or t he Appl i cat i on of Pol ymer Modi f i ed Bi t umen Roofing

ASTM I NTERNATI ONAL ( ASTM)

ASTM D4263 ( 1983; R 2012) I ndi cat i ng Moi st ur e i n Concr et e by t he Pl ast i c Sheet Met hod

ASTM D4434/ D4434M ( 2015) St andar d Speci f i cat i on f or Pol y( Vi nyl Chl or i de) Sheet Roof i ng

ASTM D6754/ D6754M ( 2010) St andar d Speci f i cat i on f or Ket one Et hyl ene Est er Based Sheet Roof i ng

ASTM E108 ( 2011) Fi r e Test s of Roof Cover i ngs

FM GLOBAL ( FM)

FM 4470 ( 2010) Si ngl e- Pl y, Pol ymer - Modi f i ed Bi t umen Sheet , Bui l t - up Roof ( BUR) , and Li qui d Appl i ed Roof Assembl i es f or Use i n Cl ass 1 and Noncombust i bl e Roof Deck Construction

FM APP GUI DE ( updat ed on- l i ne) Appr oval Gui de http://www.approvalguide.com/

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I NTERNATI ONAL CODE COUNCI L ( I CC)

I CC I BC ( 2015) I nt er nat i onal Bui l di ng Code

NATI ONAL ROOFI NG CONTRACTORS ASSOCI ATI ON ( NRCA)

NRCA 3740 ( 2005) The NRCA Wat er pr oof i ng Manual

NRCA 3758 ( 2009) Gui del i nes f or Roof - mount ed Phot ovol t ai c Syst em I nst al l at i on

NRCA 3760 Bui l di ng Owner s Gui de t o Roof - mount ed Phot ovol t ai c Syst ems

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

U. S. DEPARTMENT OF ENERGY ( DOE)

Ener gy St ar ( 1992; R 2006) Ener gy St ar Ener gy Ef f i c i ency Label i ng Syst em ( FEMP)

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

LEED BD+C ( 2009; R 2010) Leader shi p i n Ener gy and Envi r onment al Desi gn( t m) Bui l di ng Desi gn and Const r uct i on ( LEED- NC)

UNDERWRI TERS LABORATORI ES ( UL)

UL 790 ( 2004; Repr i nt Jul 2014) St andar d Test Met hods f or Fi r e Test s of Roof Cover i ngs

1. 2 SUMMARY

Ful l y adher ed pol yvi nyl - chl or i de ( PVC) r oof membr ane syst em appl i ed over PVC membr ane r oof i ng manuf act ur er - accept ed subst r at e.

1. 3 ASSEMBLY REQUI REMENTS

Roof i ng membr ane sheet wi dt hs shal l be consi st ent wi t h membr ane at t achment met hods and wi nd upl i f t r equi r ement s, and shal l be as l ar ge as pr act i cal .

I n or der t o mi ni mi ze j oi nt s and 3- way over l aps, pr ef abr i cat ed sheet s ar e not accept ed. Pr ovi de membr ane whi ch i s f r ee of def ect s and f or ei gn mat er i al . Coor di nat e f l ashi ng wor k t o per mi t cont i nuous r oof - sur f aci ng oper at i ons. I nsul at i on shal l be appl i ed and weat her pr oof ed on t he same day.

1. 3. 1 Fi r e Resi st ance

Compl et e r oof syst em assembl y:

a. Cl ass A r at ed i n accor dance wi t h ASTM E108, FM 4470, or UL 790; and

b. Be l i s t ed as Cl ass I r oof deck const r uct i on i n FM APP GUI DE.

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FM or UL appr oved component s of t he r oof cover i ng assembl y shal l bear t he appr opr i at e FM or UL l abel .

1. 3. 2 Wi nd Upl i f t Resi st ance

The compl et e r oof syst em assembl y shal l be r at ed and i nst al l ed t o r esi st wi nd l oads cal cul at ed i n accor dance wi t h ASCE 7 and val i dat ed by upl i f t r esi st ance t est i ng i n accor dance wi t h Fact or y Mut ual ( FM) t est pr ocedur es. Do not i nst al l non- r at ed syst ems, except as appr oved by t he Cont r act i ng Of f i cer . Submi t Engi neer i ng cal cul at i ons, s i gned, seal ed, and dat ed by a Regi st er ed Engi neer val i dat i ng t he wi nd r esi st ance per ASCE 7, and ANSI / SPRI ES- 1 of non- r at ed r oof syst em. Base wi nd upl i f t measur ement s on a desi gn wi nd speed of 90 mph i n accor dance wi t h ASCE 7 and ot her appl i cabl e bui l di ng code r equi r ement s.

1. 3. 3 Sol ar Ref l ect ance I ndex ( SRI )

SRI measur es t he r oof ' s abi l i t y t o r ej ect sol ar heat , def i ned such t hat a st andar d bl ack ( r ef l ect ance 0. 05, emi t t ance 0. 90) i s 0 and a st andar d whi t e ( r ef l ect ance 0. 80, emi t t ance 0. 90) i s 100. Use r oof i ng mat er i al s havi ng mi ni mum appr opr i at e SRI f or mor e t han 75 per cent of r oof sur f ace ( l ow sl ope ( l ess t han 2: 12) SRI gr eat er t han 78; hi gh sl ope ( gr eat er t han 2: 12) SRI gr eat er t han 29) .

1. 4 SUSTAI NABI LI TY REPORTI NG

Mat er i al s i n t hi s t echni cal speci f i cat i on may cont r i but e t owar ds cont r act compl i ance wi t h sust ai nabi l i t y r equi r ement s. See Sect i on 01 33 29 SUSTAI NABI LI TY REPORTI NG f or pr oj ect LEED BD+C l ow- emi t t i ng mat er i al s, r ecycl ed cont ent , r api dl y r enewabl e mat er i al s and LEED document at i on requirements.

1. 5 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

Det ai l Dr awi ngs; G Roof Pl an; G

SD- 03 Pr oduct Dat a

PVC Roof i ng Membr ane; G Bondi ng Adhesi ve Flashing Membr ane Fast ener s and Pl at es Roof I nsul at i on Pr ot ect i on Mat Pr e- Manuf act ur ed Accessor i es Wat er Cut of f s I nf or mat i on Car d

SD- 05 Desi gn Dat a

Wi nd Upl i f t Resi st ance; G

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SD- 07 Cer t i f i cat es

Qual i f i cat i on of Manuf act ur er Qual i f i cat i ons of Appl i cat or Qual i f i cat i on of Engi neer of Recor d Wi nd Upl i f t Resi st ance Fi r e Resi st ance cl assi f i cat i on Mi ni mum Pol ymer Thi ckness Sampl e War r ant y/ Assembl y Let t er ; G

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

Appl i cat i on Met hod; G Membr ane Fl ashi ng; G Per i met er At t achment Auxi l i ar y Fast ener s Pr ot ect i on Mat Pr e- Manuf act ur ed Accessor i es Col d Weat her ; G

SD- 11 Cl oseout Submi t t al s

LEED Document at i on War r ant y; G I nf or mat i on Car d; G I nst r uct i ons t o Gover nment Per sonnel ; G

1. 6 QUALI TY ASSURANCE

1. 6. 1 Qual i f i cat i on of Manuf act ur er

Pol yvi nyl - Chl or i de sheet r oof i ng syst em manuf act ur er must have a mi ni mum of 10year s exper i ence i n manuf act ur i ng PVC r oof i ng pr oduct s.

1. 6. 2 Qual i f i cat i ons of Appl i cat or

Roof i ng syst em appl i cat or must be appr oved, aut hor i zed, or l i censed i n wr i t i ng by t he PVC sheet r oof i ng syst em manuf act ur er and have a mi ni mum of f i ve year s exper i ence as an appr oved, aut hor i zed, or l i censed appl i cat or wi t h t hat manuf act ur er and be appr oved at a l evel capabl e of pr ovi di ng t he speci f i ed war r ant y. Suppl y t he names, l ocat i ons and cl i ent cont act i nf or mat i on of f i ve pr oj ect s, wi t hi n t he pr evi ous t hr ee year s, of s i mi l ar s i ze and scope t hat t he appl i cat or has const r uct ed usi ng t he manuf act ur er ' s r oof i ng pr oduct s submi t t ed f or t hi s pr oj ect .

1. 6. 3 Qual i f i cat i ons of Phot ovol t ai cs ( PV) Roof t op Appl i cat or

The PV r oof t op appl i cat or must be appr oved, aut hor i zed, or cer t i f i ed by a Roof I nt egr at ed Sol ar Ener gy ( RI SE) Cer t i f i ed Sol ar Roof i ng Pr of essi onal ( CSRP) , and compl y wi t h appl i cabl e codes, st andar ds, and r egul at or y r equi r ement s t o mai nt ai n t he weat her pr oof i ng abi l i t i es of bot h t he i nt egr at ed r oof syst em and phot ovol t ai c syst em.

1. 6. 4 Qual i f i cat i on of Engi neer of Recor d

Engi neer of Recor d must be cur r ent l y l i censed wi t hi n t he j ur i sdi ct i on of t he pr oj ect .

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Wi nd upl i f t r equi r ement s i n accor dance wi t h Local and St at e codes

ASCE 7, i n accor dance wi t h I CC I BC.

Sei smi c r equi r ement s per l ocal and st at e bui l di ng codes

Sei smi c r equi r ement s per I CC I BC Chapt er 16, Sect i on 1613

Snow l oad r equi r ement s per I CC I BC Chapt er 16 Sect i on 1608 and Sect i on 7 of ASCE 7

1. 6. 5 Conf or mance and Compat i bi l i t y

The ent i r e r oof i ng and f l ashi ng syst em shal l be i n accor dance wi t h speci f i ed and i ndi cat ed r equi r ement s, i ncl udi ng f i r e and wi nd r esi st ance.

1. 6. 6 Pr er oof i ng Conf er ence

Af t er appr oval of submi t t al s and bef or e per f or mi ng r oof i ng syst em i nst al l at i on wor k, hol d a pr er oof i ng conf er ence t o r evi ew t he f ol l owi ng:

a. Dr awi ngs, i ncl udi ng r oof pl an, speci f i cat i ons and submi t t al s r el at ed t o t he r oof wor k. Fi el d i nspect i on and ver i f i cat i on of al l exi st i ng condi t i ons, i ncl udi ng al l f i r e saf et y i ssues, exi st i ng st r uct ur e, and exi st i ng mat er i al s, i ncl udi ng conceal ed combust i bl es, whi ch may r equi r e addi t i onal pr ot ect i on dur i ng i nst al l at i on.

b. Roof syst em component s i nst al l at i on;

c. Pr ocedur e f or t he r oof manuf act ur er ' s t echni cal r epr esent at i ve' s onsi t e i nspect i on and accept ance of t he r oof i ng subst r at e, and r oof i ng subst r at e, t he name of t he manuf act ur er ' s t echni cal r epr esent at i ves, t he f r equency of t he onsi t e v i s i t s, di st r i but i on of copi es of t he i nspect i on r epor t s f r om t he manuf act ur er ' s t echni cal r epr esent at i ve t o r oof manuf act ur er ;

d. Cont r act or ' s pl an f or coor di nat i on of t he wor k of t he var i ous t r ades i nvol ved i n pr ovi di ng t he r oof i ng syst em and ot her component s secur ed t o t he r oof i ng; and

e. Qual i t y cont r ol ( ARMA PMBRG98) pl an f or t he r oof syst em i nst al l at i on;

f . Saf et y r equi r ement s.

Coor di nat e pr er oof i ng conf er ence schedul i ng wi t h t he Cont r act i ng Of f i cer .

The conf er ence shal l be at t ended by t he Cont r act or , t he Cont r act i ng Of f i cer ' s desi gnat ed per sonnel , per sonnel di r ect l y r esponsi bl e f or t he i nst al l at i on of r oof i ng and i nsul at i on, f l ashi ng and sheet met al wor k, mechani cal and el ect r i cal wor k, ot her t r ades i nt er f aci ng wi t h t he r oof wor k, desi gnat ed saf et y per sonnel t r ai ned t o enf or ce and copy wi t h ASSE/ SAFE A10. 24, and a r epr esent at i ve of t he r oof i ng mat er i al s manuf act ur er . Bef or e begi nni ng r oof i ng wor k, pr ovi de a copy of meet i ng not es and act i on i t ems t o al l at t endi ng par t i es. Not e act i on i t ems r equi r i ng r esol ut i on pr i or t o st ar t of r oof wor k.

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1. 7 DETAI L DRAWI NGS

Submi t r oof pl an depi ct i ng wi nd l oads and boundar i es of enhanced per i met er and cor ner at t achment s of r oof syst em component s, l ocat i on of per i met er hal f - sheet s, spaci ng of per i met er , cor ner , and i nf i el d f ast ener s, as appl i cabl e. The dr awi ng shal l r ef l ect t he pr oj ect r oof pl an of each r oof l evel and condi t i ons i ndi cat ed. Submi t bi ds wi t h appr oved det ai l dr awi ngs and speci f i cat i ons appr oved and f ur ni shed by t he PVC membr ane manuf act ur er .

1. 8 DELI VERY, STORAGE, AND HANDLI NG

1. 8. 1 Delivery

Del i ver mat er i al s i n t he manuf act ur er ' s or i gi nal , unopened cont ai ner s and r ol l s wi t h l abel s i nt act and l egi bl e. Mar k and r emove wet or damaged mat er i al s f r om t he si t e. Wher e mat er i al s ar e cover ed by a r ef er enced speci f i cat i on number , t he cont ai ner shal l bear t he speci f i cat i on number , t ype, c l ass, and shel f l i f e expi r at i on dat e wher e appl i cabl e. Del i ver mat er i al s i n suf f i c i ent quant i t y t o al l ow wor k t o pr oceed wi t hout interruption.

1. 8. 2 Storage

Pr ot ect mat er i al s agai nst moi st ur e absor pt i on and cont ami nat i on or ot her damage. Avoi d cr ushi ng or cr i nkl i ng of r ol l mat er i al s. St or e r ol l mat er i al s on end on cl ean r ai sed pl at f or ms or pal l et s one l evel hi gh i n dr y l ocat i ons wi t h adequat e vent i l at i on, such as an encl osed bui l di ng or c l osed t r ai l er . Do not st or e r ol l mat er i al s i n bui l di ngs under const r uct i on unt i l concr et e, mor t ar , and pl ast er wor k i s f i ni shed and dr y. Mai nt ai n r ol l mat er i al s at t emper at ur es above 50 degr ees F f or 24 hour s i mmedi at el y bef or e appl i cat i on. Do not st or e mat er i al s out door s unl ess appr oved by t he Cont r act i ng Of f i cer . Compl et el y cover f el t s st or ed out door s, on and of f r oof , wi t h wat er pr oof canvas pr ot ect i ve cover i ng. Do not use pol yet hyl ene sheet as a cover i ng. Ti e cover i ng secur el y t o pal l et s t o make compl et el y weat her pr oof . Pr ovi de suf f i c i ent vent i l at i on t o pr event condensat i on. Do not st or e mor e mat er i al s on r oof t han can be i nst al l ed t he same day and r emove unused mat er i al s at end of each days wor k. Di st r i but e mat er i al s t empor ar i l y st or ed on r oof t o st ay wi t hi n l i ve l oad l i mi t s of t he r oof const r uct i on.

a. Mai nt ai n a mi ni mum di st ance of 35 f oot f or al l s t or ed f l ammabl e mat er i al s, i ncl udi ng mat er i al s cover ed wi t h shr i nk wr aps, cr af t paper and/ or t ar ps f r om al l t or ch/ wel di ng appl i cat i ons.

b. I mmedi at el y r emove wet , cont ami nat ed or ot her wi se damaged or unsui t abl e mat er i al s f r om t he si t e. Damaged mat er i al s may be mar ked by t he Cont r act i ng Of f i cer .

1. 8. 3 Handling

Pr event damage t o edges and ends of r ol l mat er i al s. Do not i nst al l damaged mat er i al s i n t he wor k. Sel ect and oper at e mat er i al handl i ng equi pment t o pr event damage t o mat er i al s or appl i ed r oof i ng.

1. 9 ENVI RONMENTAL REQUI REMENTS

Do not i nst al l r oof i ng syst em when ai r t emper at ur e i s bel ow 40 degr ees F, dur i ng any f or m of pr eci pi t at i on, i ncl udi ng f og, or when t her e i s i ce, f r ost , moi st ur e, or any ot her v i s i bl e dampness on t he r oof deck. Fol l ow

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1. 10 SEQUENCING

Coor di nat e t he wor k wi t h ot her t r ades t o ensur e t hat component s whi ch ar e t o be secur ed t o or st r i pped i nt o t he r oof i ng syst em ar e avai l abl e and t hat per manent f l ashi ng and count er f l ashi ng i n accor dance wi t h NRCA 3740, ar e i nst al l ed as t he wor k pr ogr esses. Ensur e t empor ar y pr ot ect i on measur es ar e i n pl ace t o pr ecl ude moi st ur e i nt r usi on or damage t o i nst al l ed mat er i al s. Appl i cat i on of r oof i ng shal l i mmedi at el y f ol l ow appl i cat i on of i nsul at i on as a cont i nuous oper at i on. Coor di nat e r oof i ng oper at i ons wi t h i nsul at i on wor k so t hat al l r oof i nsul at i on appl i ed each day i s cover ed wi t h r oof membr ane i nst al l at i on t he same day.

1. 11 WARRANTY

Pr ovi de r oof syst em mat er i al and wor kmanshi p war r ant i es. Pr ovi de r evi s i on or amendment t o st andar d membr ane manuf act ur er war r ant y as r equi r ed t o compl y wi t h t he speci f i ed r equi r ement s. Mi ni mum manuf act ur er war r ant y shal l have no dol l ar l i mi t , cover f ul l syst em wat er - t i ght ness, and shal l have a mi ni mum dur at i on of 20 year s. Submi t sampl e cer t i f i cat e.

1. 11. 1 Roof Membr ane Manuf act ur er War r ant y

Fur ni sh t he r oof membr ane manuf act ur er ' s 20- year , no dol l ar l i mi t r oof syst em mat er i al s and i nst al l at i on wor kmanshi p war r ant y, i ncl udi ng f l ashi ng, i nsul at i on, and accessor i es necessar y f or a wat er t i ght r oof syst em const r uct i on. Pr ovi de war r ant y di r ect l y t o t he Gover nment and commence war r ant y ef f ect i ve dat e at t i me of Gover nment ' s accept ance of t he r oof wor k. The war r ant y must st at e t hat :

a. I f wi t hi n t he war r ant y per i od t he r oof syst em, as i nst al l ed f or i t s i nt ended use i n t he nor mal c l i mat i c and envi r onment al condi t i ons of t he f aci l i t y , becomes non- wat er t i ght , shows evi dence of moi st ur e i nt r usi on wi t hi n t he assembl y, spl i t s, t ear s, cr acks, del ami nat es, separ at es at t he seams, or shows evi dence of excessi ve weat her i ng due t o def ect i ve mat er i al s or i nst al l at i on wor kmanshi p, t he r epai r or r epl acement of t he def ect i ve and damaged mat er i al s of t he r oof syst em assembl y and cor r ect i on of def ect i ve wor kmanshi p ar e t he r esponsi bi l i t y of t he r oof membr ane manuf act ur er . Al l cost s associ at ed wi t h t he r epai r or r epl acement wor k ar e t he r esponsi bi l i t y of t he r oof membr ane manuf act ur er .

b. When t he manuf act ur er or hi s appr oved appl i cat or f ai l t o per f or m t he r epai r s wi t hi n 72 hour s of not i f i cat i on, emer gency t empor ar y r epai r s per f or med by ot her s does not voi d t he war r ant y.

1. 11. 2 Roof i ng Syst em I nst al l er War r ant y

The r oof syst em i nst al l er shal l war r ant f or a mi ni mum per i od of t wo year s t hat t he r oof syst em, as i nst al l ed, i s f r ee f r om def ect s i n i nst al l at i on wor kmanshi p, t o i ncl ude t he r oof membr ane, f l ashi ng, i nsul at i on, accessor i es, at t achment s, and sheet met al i nst al l at i on i nt egr al t o a compl et e wat er t i ght r oof syst em assembl y. Wr i t e t he war r ant y di r ect l y t o t he Gover nment . The r oof syst em i nst al l er i s r esponsi bl e f or cor r ect i on of def ect i ve wor kmanshi p and r epl acement of damaged or af f ect ed mat er i al s. The r oof syst em i nst al l er i s r esponsi bl e f or al l cost s associ at ed wi t h t he r epai r or r epl acement wor k.

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1. 11. 3 Cont i nuance of War r ant y

Apr ove r epai r or r epl acement wor k t hat becomes necessar y wi t hi n t he war r ant y per i od and accompl i shed i n a manner so as t o r est or e t he i nt egr i t y of t he r oof syst em assembl y and val i di t y of t he r oof membr ane manuf act ur er war r ant y f or t he r emai nder of t he manuf act ur er war r ant y period.

PART 2 PRODUCTS

2. 1 MATERIALS

2. 1. 1 PVC Roof Membr ane

Pr ovi de a mi ni mum pol ymer t hi ckness 0. 072 i nch r ei nf or ced PVC as speci f i ed her ei n. Pr ovi de PVC syst em capabl e of obt ai ni ng 20 year war r ant i es and as l i s t ed i n t he appl i cabl e wi nd upl i f t and f i r e r at i ng c l asi f i cat i on listings.

Submi t Dat a as r equi r ed by Sect i on 07 22 00 ROOF AND DECK I NSULATI ON t oget her wi t h r equi r ement s of t hi s sect i on. Dat a shal l i ncl ude wr i t t en accept ance by t he r oof membr ane manuf act ur er of t he i nsul at i on and ot her pr oduct s and accessor i es t o be pr ovi ded by and war r ant ed under t he f ul l syst em guar ant ee of t he r oof membr ane manuf act ur er .

a. Coor di nat e wi t h ot her speci f i cat i on sect i ons r el at ed t o t he r oof wor k. Fur ni sh a combi nat i on of speci f i ed mat er i al s t hat compr i se a r oof syst em accept abl e t o t he r oof membr ane manuf act ur er and meet i ng speci f i ed r equi r ement s. Pr ovi de mat er i al s f r ee of def ect s and sui t abl e f or t he ser vi ce and cl i mat i c condi t i ons of t he i nst al l at i on.

Al l war r ant ed r oof syst em component s shal l be sour ced f r om t he PVC r oof membr ane manuf act ur er , i ncl udi ng but not l i mi t ed t o al l i nsul at i on, cover boar ds, accessor i es, adhesi ves and edge met al .

b. For each r oof , f ur ni sh a t ypewr i t t en i nf or mat i on car d f or f aci l i t y r ecor ds and a car d l ami nat ed i n pl ast i c and f r amed f or i nt er i or di spl ay at r oof access poi nt , or a phot oengr aved 0. 032 i nch t hi ck al umi num car d f or ext er i or di spl ay. Car d shal l be 8 1/ 2 by 11 i nches mi ni mum. I nf or mat i on car d shal l i dent i f y f aci l i t y name and number ;

l ocat i on; cont r act number ; appr oxi mat e r oof ar ea; det ai l ed r oof syst em descr i pt i on, i ncl udi ng deck t ype, membr ane, number of pl i es, met hod of appl i cat i on, manuf act ur er , i nsul at i on and cover boar d syst em and t hi ckness; pr esence of t aper ed i nsul at i on f or pr i mar y dr ai nage, pr esence of vapor r et ar der ; dat e of compl et i on; i nst al l i ng Cont r act or i dent i f i cat i on and cont act i nf or mat i on; membr ane manuf act ur er war r ant y expi r at i on, war r ant y r ef er ence number , and cont act i nf or mat i on.

I nst al l car d at r oof t op or access l ocat i on as di r ect ed by t he Cont r act i ng Of f i cer and pr ovi de a paper copy t o t he Cont r act i ng Officer.

2. 1. 2 Bondi ng Adhesi ve

Pr ovi de PVC membr ane manuf act ur er ' s l ow vol at i l e or gani c compound ( VOC) membr ane adhesi ve, as suppl i ed by r oof membr ane manuf act ur er , and r ecommended by t he manuf act ur er ' s pr i nt ed dat a f or bondi ng of PVC membr ane mat er i al s t o accept abl e i nsul at i on, wood, met al , concr et e or ot her accept abl e subst r at e mat er i al s. Bondi ng adhesi ve shal l not be used t o bond membr ane mat er i al s t o each ot her .

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2. 1. 3 Wat er Cut of f Mast i c/ Wat er Bl ock

As suppl i ed by t he r oof membr ane manuf act ur er and r ecommended by t he manuf act ur er ' s pr i nt ed dat a.

2. 1. 4 Membr ane Fl ashi ng

Membr ane f l ashi ng, i ncl udi ng sel f - adher i ng membr ane f l ashi ng, per i met er f l ashi ng, f l ashi ng ar ound r oof penet r at i ons and pr ef abr i cat ed pi pe seal s, shal l be mi ni mum pol ymer t hi ckness 0. 072 i nch r ei nf or ced PVC f or 20year war r ant i es, and shal l be ut i l i zed as r ecommended and suppl i ed by t he r oof membr ane manuf act ur er or mi ni mum 0. 072 i nch t hi ck r ei nf or ced PVC r oof membr ane and f l ashi ng' s f or 20 year war r ant i es. Submi t cer t i f i cat i on f r om PVC membr ane manuf act ur er t hat t he pr oposed PVC membr ane r oof i ng pr oduct meet s t he mi ni mum pol ymer t hi ckness speci f i ed.

2. 1. 5 Membr ane Fast ener s and Pl at es

Coat ed, cor r osi on- r esi st ant f ast ener s as r ecommended and suppl i ed by t he PVC r oof membr ane manuf act ur er and meet i ng t he r equi r ement s of FM 4470 and FM Roof Nav ( www. r oof nav. com) or FM APP GUI DE f or Cl ass I r oof deck const r uct i on and t he wi nd upl i f t r esi st ance speci f i ed. Fast ener s and Pl at es t o be suppl i ed and war r ant ed f or t he subst r at e t ype( s) by PVC membr ane manuf act ur er and r ecommended by PVC membr ane manuf act ur er ' s pr i nt ed dat a.

2. 1. 5. 1 St r ess Pl at es, Bar or Rai l f or Fast ener s

Cor r osi on- r esi st ant st r ess pl at es as r ecommended by t he r oof membr ane manuf act ur er ' s pr i nt ed i nst r uct i ons and meet i ng t he r equi r ement s of FM 4470 must be ut i l i zed and must be suppl i ed by PVC r oof membr ane manuf act ur er .

St r ess pl at es shal l be f or med t o pr event di shi ng or cuppi ng.

Manuf act ur er - suppl i ed anchor i ng bar or r ai l s may be ut i l i zed f or hi gh wi nd conditions.

2. 1. 5. 2 Auxi l i ar y Fast ener s

Cor r osi on r esi st ance scr ews, nai l s, or anchor s must be sui t abl e f or i nt ended at t achment pur pose and be r ecommended and suppl i ed f or use by t he PVC r oof membr ane manuf act ur er .

2. 1. 6 Pr e- manuf act ur ed Accessor i es

Pr e- manuf act ur ed accessor i es shal l be manuf act ur er ' s st andar d f or i nt ended pur pose, must compl y wi t h appl i cabl e speci f i cat i on sect i on, be compat i bl e wi t h t he membr ane r oof syst em and appr oved f or use and suppl i ed by t he PVC r oof membr ane manuf act ur er . Pr e- f abr i cat ed Cur bs shal l be 18 gauge G90 gal vani zedst eel wi t h mi ni mum 4 i nch f l ange f or at t achment t o r oof nai l er s. Cur bs shal l pr ovi de mi ni mum hei ght of 10 i nches above t he f i ni shed r oof membr ane sur f ace.

2. 1. 7 PVC Wal k Tr ead

Scr i m r ei nf or ced 0. 096 i nch t hi ckness PVC membr ane wi t h a t ext ur ed sur f ace, compat i bl e wi t h and suppl i ed by manuf act ur er of t he PVC r oof membrane.

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2. 1. 8 Roof I nsul at i on

I nsul at i on syst em and f acer mat er i al shal l be compat i bl e wi t h membr ane appl i cat i on speci f i ed and be appr oved and suppl i ed by t he PVC membr ane r oof manuf act ur er and as speci f i ed i n Sect i on 07 22 00 ROOF AND DECK

INSULATION.

2. 1. 9 Wood Pr oduct s

As speci f i ed i n Sect i on 06 10 00 ROUGH CARPENTRY, except t hat f i r e r et ar dant t r eat ed mat er i al s shal l not be i n cont act wi t h PVC membr ane or PVC accessor y pr oduct s, unl ess appr oved by t he membr ane manuf act ur er and t he Cont r act i ng Of f i cer .

2. 2 Rei nf or ced, PVC Membr ane

Rei nf or ced pol yvi nyl chl or i de ( PVC) membr ane shal l cont ai n f i ber s or scr i m, and shal l compl y wi t h ASTM D4434/ D4434M, Type I I , Gr ade I , f l eece backed, or ASTM D6754/ D6754M, and i n al l cases shal l pr ovi de 0. 072 i nch mi ni mum t hi ckness f or adher ed appl i cat i on. Not wi t hst andi ng t he ASTM st andar ds r ef er enced, r ei nf or ced PVC r oof membr anes pr ovi ded under t hi s sect i on shal l have t he mi ni mum, l abel ed t hi ckness speci f i ed. PVC membr ane t hi ckness speci f i ed her ei n i s excl usi ve of backi ng mat er i al on t he bot t om of f l eece- backed membr ane. Pr i nci pal pol ymer used i n manuf act ur e of t he membr ane sheet shal l be PVC. Wi dt h and l engt h of PVC membr ane r oof i ng sheet shal l be consi st ent wi t h membr ane at t achment met hods and wi nd upl i f t r equi r ement s, and shal l be as l ar ge as pr act i cal . I n or der t o mi ni mi ze j oi nt s and 3- way over l aps, pr ef abr i cat ed sheet s ar e not accept ed. Maxi mum r ei nf or ced PVC membr ane r oof i ng sheet di mensi ons t o be t he maxi mum wi dt h obt ai nabl e f r om PVC membr ane r oof manuf act ur er i n or der t o mi ni mi ze seams i n t he f i el d of t he r oof .

2. 3 PHOTOVOLTAI C ( PV) SYSTEMS - RACK MOUNTED SYSTEMS

Adher e t o NRCA 3758 and NRCA 3760

2. 4 COOL ROOFS

Roof sur f ace l ayer of t he bui l t up r oof i ng syst em must meet cur r ent Ener gy St ar qual i f i cat i ons f or Cool Roof pr oduct s. The mi ni mum t est ed Sol ar Ref l ect ance val ues i s l i mi t ed t o t he f ol l owi ng: Low Sl ope: I ni t i al Val ue >0. 65; Thr ee Year s af t er I nst al l at i on Val ue >0. 50, St eep Sl ope:

I ni t i al Val ue >0. 25; Thr ee Year s af t er I nst al l at i on Val ue >0. 15

PART 3 EXECUTI ON

3. 1 CONCRETE SURFACE DRYNESS

Pr i or t o i nst al l i ng any r oof syst em on a concr et e deck, i ncl udi ng appl i cat i on of i nsul at i on or membr ane mat er i al s, conduct a t est f or sur f ace dr yness i n accor dance wi t h ASTM D4263. The deck i s accept abl e f or r oof syst em appl i cat i on when t her e i s no vi s i bl e moi st ur e on under si de of pl ast i c sheet af t er 24 hour s.

3. 2 EXAMINATION

Ensur e t hat t he f ol l owi ng condi t i ons exi st pr i or t o appl i cat i on of t he r oof i ng mat er i al s:

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a. Dr ai ns, cur bs, cont r ol j oi nt s, expansi on j oi nt s, per i met er wal l s, r oof penet r at i ng component s, and equi pment suppor t s ar e i n pl ace.

b. Sur f aces ar e r i gi d, c l ean, dr y, smoot h, and f r ee f r om cr acks, hol es, and shar p changes i n el evat i on.

c. Subst r at e i s s l oped t o pr ovi de posi t i ve dr ai nage.

d. Wal l s and ver t i cal sur f aces ar e const r uct ed t o r ecei ve count er f l ashi ng, and wi l l per mi t mechani cal f ast eni ng of t he base f l ashi ng mat er i al s.

e. Tr eat ed wood nai l er s ar e i n pl ace on non- nai l abl e sur f aces, t o per mi t nai l i ng of base f l ashi ng at mi ni mum hei ght of 8 i nches above f i ni shed r oof i ng sur f ace.

f . Pr essur e- pr eser vat i ve t r eat ed wood nai l er s ar e f ast ened i n pl ace at eaves, gabl e ends, openi ngs, and i nt er sect i ons wi t h ver t i cal sur f aces f or secur i ng of membr ane, edgi ng st r i ps, at t achment f l anges of sheet met al , and r oof f i x t ur es. Sur f ace- appl i ed nai l er s ar e t he same t hi ckness as t he r oof i nsul at i on.

g. PVC mat er i al s ar e not i n cont act wi t h f i r e r et ar dant t r eat ed wood, except as appr oved by t he PVC membr ane r oof manuf act ur er and Cont r act i ng Of f i cer .

h. Vent i ng shal l be pr ovi ded i f r equi r ed by, and i n accor dance wi t h t he cel l ul ar l i ght wei ght concr et e manuf act ur er ' s r equi r ement s and recommendations.

i . Exposed nai l heads i n wood subst r at es ar e pr oper l y set . War ped and spl i t boar ds and sheet s have been r epl aced. Ther e ar e no cr acks or end j oi nt s 1/ 4 i nch i n wi dt h or gr eat er . Joi nt s i n pl ywood subst r at es ar e t aped or ot her wi se seal ed t o pr event ai r l eakage f r om t he underside.

j . I nsul at i on boar ds ar e i nst al l ed smoot hl y and evenl y, and ar e not br oken, cr acked, or cur l ed. Ther e ar e no gaps i n i nsul at i on boar d j oi nt s exceedi ng 1/ 4 i nch i n wi dt h. I nsul at i on i s at t ached as speci f i ed i n Sect i on 07 22 00 ROOF AND DECK I NSULATI ON. I nsul at i on i s bei ng r oof ed over on t he same day t he i nsul at i on i s i nst al l ed.

3. 3 APPLI CATI ON METHOD

Appl y ent i r e PVC membr ane r oof i ng ut i l i z i ng adher ed appl i cat i on met hod.

Appl y r oof i ng mat er i al s as speci f i ed her ei n unl ess appr oved ot her wi se by t he Cont r act i ng Of f i cer . Submi t i nst r uct i ons i ncl udi ng pat t er n and f r equency of mechani cal at t achment s r equi r ed i n t he f i el d f or r oof , cor ner s, and per i met er s t o pr ovi de f or t he speci f i ed wi nd r esi st ance

3. 3. 1 Speci al Pr ecaut i ons

a. Do not di l ut e coat i ngs or seal ant s unl ess speci f i cal l y r ecommended by t he mat er i al manuf act ur er ' s pr i nt ed appl i cat i on i nst r uct i ons. Do not t hi n l i qui d mat er i al s or c l eaner s used f or c l eani ng PVC sheet .

b. Keep l i qui ds i n ai r t i ght cont ai ner s, and keep cont ai ner s c l osed except when r emovi ng mat er i al s.

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c. Use l i qui d component s, i ncl udi ng adhesi ves, wi t hi n t hei r shel f l i f e per i od. St or e adhesi ves at 60 t o 80 degr ees F pr i or t o use. Avoi d excessi ve adhesi ve appl i cat i on and adhesi ve spi l l s , as t hey can be dest r uct i ve t o some t her mopl ast i c sheet s and i nsul at i ons; f ol l ow adhesi ve manuf act ur er ' s pr i nt ed appl i cat i on i nst r uct i ons. Mi x and use l i qui d component s i n accor dance wi t h l abel di r ect i ons and manuf act ur er ' s pr i nt ed i nst r uct i ons.

d. Pr ovi de cl ean, dr y c l ot hs or pads f or appl y i ng membr ane cl eaner s and cl eani ng of membr ane.

e. Do not use heat guns or open f l ame t o expedi t e dr yi ng of adhesi ves or primers.

f . Requi r e wor kmen and ot her s who wal k on t he membr ane t o wear c l ean, sof t - sol ed shoes t o avoi d damage t o r oof i ng mat er i al s.

g. Do not use equi pment wi t h shar p edges whi ch coul d punct ur e t he PVC membr ane r oof i ng sheet .

h. Shut down ai r i nt akes and any r el at ed mechani cal syst ems and seal open vent s and ai r i nt akes when appl y i ng sol vent - based mat er i al s i n t he ar ea of t he openi ng or i nt ake. Coor di nat e shut downs wi t h t he Cont r act i ng Of f i cer .

3. 3. 2 PVC Roof i ng Membr ane

Pr ovi de a wat er t i ght r oof membr ane sheet f r ee of cont ami nant s and def ect s t hat mi ght af f ect ser vi ceabi l i t y . Pr ovi de a uni f or m, st r ai ght , and f l at edge. Onl y f el t - backed membr ane shal l be pl aced di r ect l y on concr et e deck or ot her har d sur f ace whi ch may ot her wi se damage t he membr ane, absent t he f el t backi ng. Non- f el t - backed PVC membr ane r oof i ng sheet shal l not be pl aced di r ect l y on concr et e deck or ot her har d sur f ace whi ch may damage t he membr ane. Membr ane shal l be over l apped a mi ni mum of 3 i nches at s i des f or adher ed appl i cat i ons and 5. 5- 7 i nches f or mechani cal l y f ast ened appl i cat i ons and mi ni mum 4 i nches at ends. Di r ect i on of l aps shal l al l ow wat er t o f l ow over and not agai nst t he l ap. Membr ane j oi nt s shal l be f r ee of wr i nkl es and f i shmout hs. The ent i r e l engt h of hot - ai r - wel ded seams shal l be pr obe- t est ed and cor r ect ed dur i ng t he day of i nst al l at i on.

Def ect i ve ar eas shal l be r e- wel ded. Wr i nkl es, f i shmout hs, or damaged ar eas shal l be cut out and t he ar ea cover ed wi t h membr ane usi ng a cont i nuous hot - ai r - wel ded seam on al l s i des. Repai r s shal l be pr obe- t est ed f or cont i nui t y. Hot - ai r - wel ded seams ar e t o be accompl i shed i n accor dance wi t h t he PVC membr ane r oof i ng manuf act ur er ' s publ i shed requirements.

3. 3. 2. 1 Nailing

Membr ane shal l be f ast ened t o nai l er s i n accor dance wi t h t he membr ane manuf act ur er ' s appr oved i nst r uct i ons. Unl ess ot her wi se speci f i ed, nai l s shal l be st agger ed on 4 i nch cent er s maxi mum; scr ews f or sheet met al shal l be st agger ed on 8 i nch cent er s maxi mum; and a r ow of f ast ener s shal l be at l east 1/ 2 i nch f r om edges of sheet met al .

3. 3. 2. 2 Flashing

Roof edges, pr oj ect i ons t hr ough t he r oof and changes i n r oof pl anes shal l be f l ashed. The seam shal l be seal ed a mi ni mum of 3 i nches beyond t he

Apr i l 2019 Page 12 SECTI ON 07 54 19 f ast ener s whi ch at t ach t he membr ane t o nai l er s. The i nst al l ed f l ashi ng' s shal l be secur ed at t he t op of t he f l ashi ng a maxi mum of 12 i nches on cent er s under t he count er f l ashi ng or cap. Wher e possi bl e, pr ef abr i cat ed component s shal l be used f or pi pe seal s and f l ashi ng accessor i es.

3. 3. 2. 3 Expansi on Joi nt s

Expansi on j oi nt s shal l be cover ed usi ng Pr ef abr i cat ed cover s or el ast omer i c f l ashi ng i n accor dance wi t h t he r ecommendat i ons of t he manufacturer.

3. 3. 2. 4 Cutoffs

I f wor k i s t er mi nat ed pr i or t o weat her pr oof i ng t he ent i r e r oof , t he membr ane shal l be seal ed t o t he r oof deck. Fl ut es i n met al decki ng shal l be seal ed of f al ong t he cut of f edge. Membr ane shal l be pul l ed f r ee or cut t o expose t he i nsul at i on when r esumi ng wor k and cut i nsul at i on sheet s used f or f i l l - i n shal l be r emoved. Asphal t or coal - t ar pr oduct s shal l not be used f or seal i ng.

3. 3. 2. 5 Walkways

Wal kways shal l be i nst al l ed on a l oose- l ai d pad of t he membr ane mat er i al ext endi ng at l east 1 i nch beyond t he wal kway mat er i al , and as speci f i ed by t he manuf act ur er . St one bal l ast shal l not be pl aced bel ow or above walkways.

3. 3. 3 Adher ed Membr ane Appl i cat i on

Layout membr ane and si de l ap adj oi ni ng sheet s i n accor dance wi t h membr ane manuf act ur er ' s pr i nt ed i nst al l at i on i nst r uct i ons. Al l ow f or suf f i c i ent membr ane t o f or m pr oper membr ane t er mi nat i ons. Remove dust i ng agent s and di r t f r om membr ane and subst r at e ar eas wher e bondi ng adhesi ves ar e t o be appl i ed. Appl y speci f i ed adhesi ve evenl y and cont i nuousl y t o subst r at e and under si de of sheet s at r at es r ecommended by t he r oof membr ane manuf act ur er ' s pr i nt ed appl i cat i on i nst r uct i ons. When adhesi ve i s spr ay appl i ed, r ol l wi t h a pai nt r ol l er t o ensur e pr oper cont act and cover age.

Do not appl y bondi ng adhesi ve t o sur f aces of membr ane i n seam or l ap ar eas. Al l ow adhesi ve t o f l ash of f or dr y t o consi st ency pr escr i bed by manuf act ur er bef or e adher i ng sheet s t o t he subst r at e. When adhesi ve i s peel & st i ck r el ease paper - act i vat ed, f ol l ow manuf act ur er ' s pr i nt ed i nst r uct i ons. Rol l each sheet i nt o adhesi ve s l owl y and evenl y t o avoi d wr i nkl es; br oom or r ol l t he membr ane t o r emove ai r pocket s and f i shmout hs and t o ensur e adequat el y uni f or m bondi ng of sheet t o subst r at e. For m f i el d hot - ai r - wel ded l aps or seams as speci f i ed and ensur e t hat hot - ai r wel ded di mensi on i s at wi dt h r equi r ed by t he membr ane manuf act ur er ' s i nst al l at i on i nst r uct i ons. Check al l seams and cont i nuous hot - ai r - wel d of al l seams and l ap seal s.

3. 3. 4 Mechani cal l y Fast ened Membr ane Appl i cat i on

Layout membr ane and l ap adj oi ni ng sheet s i n accor dance wi t h membr ane manuf act ur er ' s pr i nt ed i nst r uct i ons such t hat t he mi ni mum r ecommended seam wi dt h i s mai nt ai ned and t o ensur e t hat seam wi dt h i s as r equi r ed by t est ed assembl y meet i ng speci f i ed wi nd r esi st ance r equi r ement s. Account f or addi t i onal over l ap r equi r ed f or pl acement of f ast ener s and pl at es or bat t ens beyond t he cl osed seam. Al l ow f or suf f i c i ent membr ane t o f or m pr oper membr ane t er mi nat i ons. Ensur e membr ane i s f r ee of wr i nkl es and r i dges i n t he i nst al l at i on. Mechani cal l y secur e t he membr ane sheet wi t h

Apr i l 2019 Page 13 SECTI ON 07 54 19 speci f i ed f ast ener s i n t he l ap ar ea. Space f ast ener s as r equi r ed t o pr ovi de t he wi nd upl i f t r esi st ance speci f i ed and i n accor dance wi t h submi t t ed f ast ener pat t er ns f or t he f i el d, cor ner , and per i met er r oof ar eas. Set f ast ener s f i r m t o pl at e or bat t en. For m f i el d hot - ai r - wel ded seams and l aps and/ or cover st r i ps, as speci f i ed. Check al l seams and ensur e f ul l / cont i nuous l ap seal .

3. 3. 5 Per i met er At t achment

Adhesi ve bond or mechani cal l y secur e r oof membr ane sheet at r oof per i met er i n a manner t o compl y wi t h wi nd r esi st ance r equi r ement s and i n accor dance wi t h membr ane manuf act ur er ' s pr i nt ed appl i cat i on i nst r uct i ons. When adhesi vel y bondi ng a mechani cal l y f ast ened syst em i n per i met er ar eas, t he per i met er boundar y of t he adhesi ve bond shal l be t he same as t he boundar y r equi r ed f or addi t i onal per i met er mechani cal f ast eni ng t o meet wi nd r esi st ance r equi r ement s.

3. 3. 6 Secur ement at Base Ti e- I n Condi t i ons

Mechani cal l y f ast en t he r oof membr ane at penet r at i ons, at base of cur bs and wal l s, and at al l l ocat i ons wher e t he membr ane t ur ns and angl es gr eat er t han 4 degr ees ( 1: 12) . Space f ast ener s a maxi mum of 12 i nches on cent er , except wher e mor e f r equent at t achment i s r equi r ed t o meet speci f i ed wi nd r esi st ance or wher e r ecommended by t he r oof membr ane manuf act ur er . Cover over f ast ener s wi t h a l ayer of f l ashi ng mat er i al .

Hot - ai r - wel d al l seams of f l ashi ng mat er i al as r ecommended by t he r oof membr ane manuf act ur er ' s pr i nt ed dat a.

3. 3. 7 Pr e- f abr i cat ed Cur bs

Secur el y anchor pr ef abr i cat ed cur bs t o nai l er or ot her base subst r at e and f l ashed wi t h PVC membr ane f l ashi ng mat er i al s.

3. 3. 7. 1 Set - On Accessor i es

Wher e pi pe or condui t bl ocki ng, suppor t s and si mi l ar r oof accessor i es, or i sol at ed paver bl ock, ar e set on t he membr ane, adher e r ei nf or ced membr ane or wal kpad mat er i al , as r ecommended by t he r oof membr ane manuf act ur er , t o bot t om of accessor i es pr i or t o set t i ng on r oof i ng membr ane. Speci f i c met hod of i nst al l i ng set - on accessor i es must per mi t nor mal movement due t o expansi on, cont r act i on, v i br at i on, and si mi l ar occur r ences wi t hout damagi ng r oof i ng membr ane. Do not mechani cal l y secur e set - on accessor i es t hr ough r oof i ng membr ane i nt o r oof deck subst r at e.

3. 3. 8 Roof Wal kways

I nst al l wal kways at r oof access poi nt s and wher e ot her wi se i ndi cat ed f or t r af f i c ar eas and f or access t o mechani cal equi pment , i n accor dance wi t h t he PVC membr ane r oof manuf act ur er ' s pr i nt ed i nst r uct i ons. Pr ovi de mi ni mum 6 i nch separ at i on bet ween adj acent wal kways t o accommodat e dr ai nage.

3. 4 FLASHINGS

Pr ovi de f l ashi ngs i n t he angl es f or med at wal l s and ot her ver t i cal sur f aces and wher e r equi r ed t o make t he wor k wat er t i ght , except wher e met al f l ashi ngs ar e i ndi cat ed.

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3. 4. 1 General

Pr ovi de a one- pl y f l ashi ng membr ane, as speci f i ed f or t he syst em used, and i nst al l i mmedi at el y af t er t he r oof i ng membr ane i s pl aced and pr i or t o f i ni sh coat i ng wher e a f i ni sh coat i ng i s r equi r ed. Fl ashi ngs must be st epped wher e ver t i cal sur f aces abut s l oped r oof sur f aces. Pr ovi de sheet met al r egl et i n whi ch sheet met al cap f l ashi ngs ar e i nst al l ed of not mor e t han 16 i nch nor l ess t han 8 i nch above t he r oof i ng sur f aces. Exposed j oi nt s and end l aps of f l ashi ng membr ane must be made and seal ed i n t he manner r equi r ed f or r oof i ng membr ane.

3. 4. 2 Membr ane Fl ashi ng

3. 4. 2. 1 Installation

I nst al l f l ashi ng and f l ashi ng accessor i es as t he r oof membr ane i s i nst al l ed. Appl y f l ashi ng t o c l eaned sur f aces and as r ecommended by t he r oof membr ane manuf act ur er and as speci f i ed. Ut i l i ze cur ed PVC membr ane f l ashi ng and pr ef abr i cat ed accessor y f l ashi ngs t o t he maxi mum ext ent r ecommended by t he r oof membr ane manuf act ur er . Li mi t uncur ed f l ashi ng mat er i al t o r ei nf or ci ng i nsi de and out si de cor ner s and angl e changes i n pl ane of membr ane, and t o f l ashi ng scupper s, pour abl e seal er pocket s, and ot her f or med penet r at i ons or unusual l y shaped condi t i ons as r ecommended by t he r oof membr ane manuf act ur er wher e t he use of cur ed mat er i al i s i mpr act i cal . Ext end base f l ashi ng not l ess t han 8 i nch above r oof i ng sur f ace and as necessar y t o pr ovi de f or seami ng over l ap on r oof membr ane as r ecommended by t he r oof membr ane manuf act ur er .

3. 4. 2. 2 Sealing

Seal f l ashi ng membr ane f or a mi ni mum of 3 i nch on each si de of f ast eni ng devi ce used t o anchor r oof membr ane t o nai l er s. Compl et el y adher e f l ashi ng sheet s i n pl ace. Seam f l ashi ng membr ane i n t he same manner as r oof membr ane, except as ot her wi se r ecommended by t he membr ane manuf act ur er ' s pr i nt ed i nst r uct i ons and appr oved by t he Cont r act i ng Of f i cer . Rei nf or ce al l cor ner s and angl e t r ansi t i ons by appl y i ng uncur ed membr ane t o t he ar ea i n accor dance wi t h r oof membr ane manuf act ur er r ecommendat i ons. Mechani cal l y f ast en t op edge of base f l ashi ng wi t h manuf act ur er r ecommended t er mi nat i on bar f ast ened at maxi mum 12 i nch on cent er . I nst al l sheet met al f l ashi ng over t he t er mi nat i on bar i n t he compl et ed wor k. Mechani cal l y f ast en t op edge of base f l ashi ng f or al l ot her t er mi nat i ons i n a manner r ecommended by t he r oof membr ane manuf act ur er . Appl y membr ane l i ner over t op of exposed nai l er s and bl ocki ng and t o over l ap t op edge of base f l ashi ng i nst al l at i on at cur bs, par apet wal l s, expansi on j oi nt s and as ot her wi se i ndi cat ed t o ser ve as wat er pr oof l i ni ng under sheet met al f l ashi ng component s.

3. 4. 3 Fl ashi ng at Roof Dr ai n

Pr ovi de a t aper ed i nsul at i on sump i nt o t he dr ai n bowl ar ea. Do not exceed t aper ed sl ope of 18 degr ees f or unr ei nf or ced membr ane and 5 degr ees f or r ei nf or ced membr ane. Pr ovi de t aper ed i nsul at i on wi t h sur f ace sui t abl e f or adher i ng membr ane i n t he dr ai n sump ar ea. Avoi d f i el d seams r unni ng t hr ough or wi t hi n 24 i nch of r oof dr ai n, or as ot her wi se r ecommended by t he r oof membr ane manuf act ur er . Adher e t he membr ane t o t he t aper ed i n t he dr ai n sump ar ea. Appl y wat er bl ock mast i c and ext end membr ane sheet s over edge of dr ai n bowl openi ng at t he r oof dr ai n deck f l ange i n accor dance wi t h membr ane manuf act ur er ' s pr i nt ed appl i cat i on i nst r uct i ons. I nsur e membr ane f r ee of wr i nkl es and f ol ds i n t he dr ai n ar ea. Secur el y c l amp

Apr i l 2019 Page 15 SECTI ON 07 54 19 membr ane i n t he f l ashi ng cl ampi ng r i ng. Ensur e membr ane i s cut t o wi t hi n 3/ 4 i nch of i nsi de r i m of c l ampi ng r i ng t o mai nt ai n dr ai nage capaci t y. Do not cut back t o bol t hol es. Ret r of i t r oof dr ai ns shal l conf or m t o

ANSI / SPRI RD- 1.

3. 5 ROOF WALKPADS

I nst al l wal kpads at r oof access poi nt s and wher e ot her wi se i ndi cat ed f or t r af f i c ar eas and f or access t o mechani cal equi pment , i n accor dance wi t h t he r oof membr ane manuf act ur er ' s pr i nt ed i nst r uct i ons. Pr ovi de mi ni mum 6 i nch separ at i on bet ween adj acent wal kpads t o accommodat e dr ai nage.

3. 6 CORRECTI ON OF DEFI CI ENCES

Wher e any f or m of def i c i ency i s f ound, addi t i onal measur es must be t aken as deemed necessar y by t he Cont r act i ng Of f i cer t o det er mi ne t he ext ent of t he def i c i ency and pr ovi de cor r ect i ve act i on r ecommendat i ons. Per f or m cor r ect i ve act i on as di r ect ed by t he Cont r act i ng Of f i cer .

3. 7 PROTECTI ON OF APPLI ED ROOFI NG

At t he end of t he day' s wor k and when pr eci pi t at i on i s i mmi nent , pr ot ect appl i ed membr ane r oof i ng syst em f r om wat er i nt r usi on.

3. 7. 1 Wat er Cut of f s

St r ai ght en i nsul at i on l i ne usi ng l oose- l ai d cut i nsul at i on sheet s and seal t he t er mi nat ed edge of t he r oof membr ane syst em i n an ef f ect i ve manner .

Remove t he wat er cut - of f s t o expose t he i nsul at i on when r esumi ng wor k, and r emove t he i nsul at i on sheet s used f or f i l l - i n.

3. 7. 2 Tempor ar y Fl ashi ng f or Per manent Roof i ng

Pr ovi de t empor ar y f l ashi ng at dr ai ns, cur bs, wal l s and ot her penet r at i ons and t er mi nat i ons of r oof i ng sheet s unt i l per manent f l ashi ngs can be appl i ed. Remove t empor ar y f l ashi ng bef or e appl y i ng per manent f l ashi ng.

3. 7. 3 Tempor ar y Wal kways, Runways, and Pl at f or ms

Do not per mi t st or i ng, wal k i ng, wheel i ng, and t r ucki ng di r ect l y on appl i ed r oof i ng syst em. Pr ovi de t empor ar y wal kways, r unways, and pl at f or ms of smoot h c l ean boar ds, mat s or pl anks as necessar y t o avoi d damage t o appl i ed r oof i ng mat er i al s, and t o di st r i but e wei ght t o conf or m t o l i ve l oad l i mi t s of r oof const r uct i on. Use r ubber - t i r ed equi pment f or r oof i ng work.

3. 8 FI ELD QUALI TY CONTROL

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

Dur i ng pr ogr ess of t he r oof wor k, make vi sual i nspect i ons as necessar y t o ensur e compl i ance wi t h speci f i ed par amet er s. Addi t i onal l y, ver i f y t he following:

a. Equi pment i s i n wor ki ng or der . Met er i ng devi ces ar e accur at e.

b. Mat er i al s ar e not i nst al l ed i n adver se weat her condi t i ons.

c. Subst r at es ar e i n accept abl e condi t i on, i n compl i ance wi t h

Apr i l 2019 Page 16 SECTI ON 07 54 19 speci f i cat i on, pr i or t o appl i cat i on of subsequent mat er i al s.

( 1) Nai l er s and bl ocki ng ar e pr ovi ded wher e and as needed.

( 2) I nsul at i on subst r at e i s smoot h, pr oper l y secur ed t o i t s subst r at e, and wi t hout excessi ve gaps pr i or t o membr ane appl i cat i on.

( 3) The pr oper number , t ype, and spaci ng of f ast ener s ar e i nst al l ed.

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

( 5) 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 moi st ur e or ot her damages. Li qui d component s ar e pr oper l y mi xed pr i or t o appl i cat i on.

( 6) Adhesi ves ar e appl i ed uni f or ml y t o bot h mat i ng sur f aces and checked f or pr oper set pr i or t o bondi ng mat i ng mat er i al s.

Mechani cal at t achment s ar e spaced as r equi r ed, i ncl udi ng addi t i onal f ast eni ng of membr ane i n cor ner and per i met er ar eas as required.

( 7) Membr ane i s pr oper l y over l apped.

( 8) Membr ane seami ng i s as speci f i ed by PVC membr ane manuf act ur er .

Al l seams ar e checked at t he end of each wor k day.

( 9) Appl i ed membr ane i s i nspect ed and r epai r ed as necessar y pr i or t o paver i nst al l at i on.

( 10) Membr ane i s adher ed wi t hout r i dges, wr i nkl es, k i nks, f i shmout hs.

( 11) I nst al l er adher es t o speci f i ed and det ai l ed appl i cat i on parameters.

( 12) Associ at ed f l ashi ng' s 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.

( 13) Paver bal l ast i s wi t hi n…