07 53 23.pdf

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

SECTI ON 07 53 23

ETHYLENE- PROPYLENE- DI ENE- MONOMER 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 SOCI ETY OF CI VI L ENGI NEERS ( ASCE)

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

ASTM I NTERNATI ONAL ( ASTM)

ASTM D448 ( 2012) Si zes of Aggr egat e f or Road and Br i dge Const r uct i on

ASTM D4637/ D4637M ( 2015) EPDM Sheet Used i n Si ngl e- Pl y Roof Membrane

ASTM D4811/ D4811M ( 2006; E 2013; R 2013) Nonvul cani zed ( Uncur ed) Rubber Sheet Used as Roof Flashing

ASTM D6369 ( 1999; R 2006) Desi gn of St andar d Fl ashi ng Det ai l s f or EPDM Roof Membr anes

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/

NATI ONAL ROOFI NG CONTRACTORS ASSOCI ATI ON ( NRCA)

NRCA Roof Man ( 2011 t hr u 2014) The NRCA Roof i ng Manual

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

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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

UL RMSD ( 2012) Roof i ng Mat er i al s and Syst ems Directory

1. 2 DESCRI PTI ON OF ROOF MEMBRANE SYSTEM

Ful l y adher ed EPDM r oof membr ane syst em appl i ed over i nsul at i on, r ecover y boardandsubstrate.

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

Roof Pl an Dr awi ng

Wi nd Load Cal cul at i ons

Boundar i es of Enhanced Per i met er

Cor ner At t achment s of Roof Syst em Component s

Locat 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 Fast ener s

Sl opes and Dr ai n Locat i ons

SD- 03 Pr oduct Dat a

Cement

EPDM Sheet ; G

Seam Tape

Bondi ng Adhesi ve

Lap Spl i ce Adhesi ve

Wat er Cut of f Mast i c/ Wat er Bl ock

Lap Cl eaner , Lap Seal ant , and Edge Tr eat ment

Flashings

Fl ashi ng Accessor i es

Fl ashi ng Tape

Fast ener s and Pl at es

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Roof I nsul at i on

Wal k Pads

Pr e- Manuf act ur ed Accessor i es

Sampl e war r ant y/ Assembl y l et t er ; G

Submi t al l dat a r equi r ed t oget her wi t h r equi r ement s of t hi s sect i on. I ncl ude a 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. Li st pr oduct s 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 assi f i cat i on l i s t i ngs, unl ess appr oved ot her wi se by t he Cont r act i ng Of f i cer .

SD- 05 Desi gn Dat a

Wi nd Upl i f t Cal cul at i ons; G

Engi neer i ng cal cul at i ons val i dat i ng t he wi nd r esi st ance of r oof system.

SD- 07 Cer t i f i cat es

Qual i f i cat i on of Manuf act ur er

Cer t i f y t hat t he manuf act ur er of t he r oof membr ane meet s r equi r ement s speci f i ed under par agr aph ent i t l ed " Qual i f i cat i on of Manufacturer."

Qual i f i cat i on of Appl i cat or

Cer t i f y t hat t he appl i cat or meet s r equi r ement s speci f i ed under par agr aph ent i t l ed " Qual i f i cat i on of Appl i cat or . "

Wi nd Upl i f t Resi st ance cl assi f i cat i on, as appl i cabl e; G

Fi r e Resi st ance cl assi f i cat i on; G

Submi t t he r oof syst em assembl y wi nd upl i f t and f i r e r at i ng c l assi f i cat i on l i s t i ngs.

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

Appl i cat i on; G

Appl i cat i on Met hod; G, 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 of 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

Membr ane Fl ashi ng; G

Seam Tape

Tape Seams / Lap Spl i ces

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Adhesi ve Seams / Lap Spl i ces

Per i met er At t achment

Primer

Fasteners

Wal k Pads

Pr e- Manuf act ur ed Accessor i es

Col d Weat her I nst al l at i on; G

I ncl ude det ai l ed appl i cat i on i nst r uct i ons and st andar d manuf act ur er dr awi ngs al t er ed as r equi r ed by t hese speci f i cat i ons.

Expl i c i t l y i dent i f y i n wr i t i ng, di f f er ences bet ween manuf act ur er ' s pr i nt ed i nst r uct i ons and t he speci f i ed r equi r ement s.

SD- 11 Cl oseout Submi t t al s

Warranty

I nf or mat i on Car d

I nst r uct i ons To Gover nment Per sonnel

I ncl ude copi es of Mat er i al Saf et y Dat a Sheet s f or mai nt enance/ r epai r mat er i al s.

1. 3. 1 Shop Dr awi ngs

Roof pl an dr awi ng depi ct i ng wi nd l oad cal cul at i ons and boundar i es of enhanced per i met er and cor ner at t achment s of r oof syst em component 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 must 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. Pr ovi de al l s l opes and dr ai n l ocat i ons.

1. 4 QUALI TY ASSURANCE

1. 4. 1 Qual i f i cat i on of Manuf act ur er

EPDM sheet r oof i ng membr ane manuf act ur er must have at l east 5 year s exper i ence i n manuf act ur i ng EPDM r oof i ng pr oduct s.

1. 4. 2 Qual i f i cat i on 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 r oof membr ane manuf act ur er and must have a mi ni mum of t hr ee 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. The appl i cat or must suppl y t he names, l ocat i ons and cl i ent cont act i nf or mat i on of 5 pr oj ect 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 wi t hi n t he pr evi ous t hr ee year s.

1. 4. 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

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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. 4. 4 Fi r e Resi st ance

Compl et e r oof cover i ng assembl y must :

a. Be 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 par t of Fi r e- Cl assi f i ed r oof deck const r uct i on i n t he UL RMSD or Cl ass I r oof deck const r uct i on i n t he FM APP GUI DE.

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

1. 4. 5 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 l i censed engi neer ' s wi nd upl i f t cal cul at i ons and subst ant i at i ng dat a t o val i dat e any non- r at ed r oof syst em. Base wi nd upl i f t measur ement s based on a desi gn wi nd speed of 90 mph i n accor dance with ASCE 7 and/ or ot her appl i cabl e bui l di ng code r equi r ement s

1. 4. 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 and i nsul at i on 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 following:

a. Dr awi ngs, speci f i cat i ons and submi t t al s r el at ed t o t he r oof wor k;

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, 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;

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 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 must 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, and 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

Apr i l 2019 Page 5 SECTI ON 07 53 23 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.

1. 5 DELI VERY, STORAGE, AND HANDLI NG

1. 5. 1 Delivery

Del i ver mat er i al s i n t hei r or i gi nal , unopened cont ai ner s or wr appi ngs wi t h l abel s i nt act and l egi bl 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 l abel s must 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 cont i nui t y of wor k.

1. 5. 2 Storage

St or e and pr ot ect mat er i al s f r om damage and weat her i n accor dance wi t h manuf act ur er ' s pr i nt ed i nst r uct i ons, except as speci f i ed ot her wi se. Keep mat er i al s c l ean and dr y. St or e and mai nt ai n adhesi ves, seal ant s, pr i mer s and ot her l i qui d mat er i al s above 60 degr ees F. I nsul at ed hot boxes or ot her encl osed war mi ng devi ces must be r equi r ed i n col d weat her . Mar k and r emove damaged mat er i al s f r om t he si t e. Use pal l et s t o suppor t and canvas t ar paul i ns t o compl et el y cover mat er i al mat er i al s st or ed out door s. Do not use pol yet hyl ene as a cover i ng. Locat e mat er i al s t empor ar i l y st or ed on t he r oof i n appr oved ar eas, and di st r i but e t he l oad t o st ay wi t hi n t he l i ve l oad l i mi t s of t he r oof const r uct i on. Remove unused mat er i al s f r om t he r oof at t he end of each days wor k.

1. 5. 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 so as not t o damage mat er i al s or appl i ed r oof i ng. Do not use mat er i al s cont ami nat ed by exposur e or moi st ur e. Remove cont ami nat ed mat er i al s f r om t he si t e. When hazar dous mat er i al s ar e i nvol ved, adher e t o t he speci al pr ecaut i ons of t he manuf act ur er . Adhesi ves may cont ai n pet r ol eum di st i l l at es and may be ext r emel y f l ammabl e; pr event per sonnel f r om br eat hi ng vapor s, and do not use near spar ks or open f l ame.

1. 6 ENVI RONMENTAL REQUI REMENTS

Do not i nst al l EPDM sheet r oof i ng dur i ng hi gh wi nds or i ncl ement weat her , or when t her e i s i ce, f r ost , moi st ur e, or v i s i bl e dampness on t he subst r at e sur f ace, or when condensat i on devel ops on sur f aces dur i ng appl i cat i on. Unl ess r ecommended ot her wi se by t he EPDM sheet manuf act ur er and appr oved by t he Cont r act i ng Of f i cer , do not i nst al l EPDM sheet when ai r t emper at ur e i s bel ow 40 degr ees F or wi t hi n 5 degr ees F of t he dewpoi nt . Fol l ow manuf act ur er ' s pr i nt ed i nst r uct i ons f or i nst al l at i on dur i ng col d weat her condi t i ons.

1. 7 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 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 must 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

Apr i l 2019 Page 6 SECTI ON 07 53 23 i nst al l at i on t he same day and i s wat er t i ght .

1. 8 WARRANTY

Pr ovi de r oof syst em mat er i al and wor kmanshi p war r ant i es meet i ng speci f i ed r equi r ement s. 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 years.

1. 8. 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 30 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. The war r ant y must r un di r ect l y t o t he Gover nment and commence 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, shr i nks t o t he poi nt of br i dgi ng or t ent i ng membr ane at t r ansi t i ons, 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 must be t he r esponsi bi l i t y of t he r oof membr ane manuf act ur er . The r oof membr ane manuf act ur 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.

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. 8. 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 must war r ant f or a 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.

1. 8. 3 Cont i nuance of War r ant y

Appr 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 sh 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 per i od.

1. 9 CONFORMANCE AND COMPATI BI LI TY

The ent i r e r oof i ng and f l ashi ng syst em must be i n accor dance wi t h

Apr i l 2019 Page 7 SECTI ON 07 53 23 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 r equi r ement s. Wor k not speci f i cal l y addr essed and any devi at i on f r om speci f i ed r equi r ement s must be i n gener al accor dance wi t h r ecommendat i ons of t he NRCA Roof Man, membr ane manuf act ur er publ i shed r ecommendat i ons and details, ASTM D6369, and compat i bl e wi t h sur r oundi ng component s and const r uct i on. Submi t any devi at i on f r om speci f i ed or i ndi cat ed r equi r ement s t o t he Cont r act i ng Of f i cer f or appr oval pr i or t o i nst al l at i on.

PART 2 PRODUCTS

2. 1 MATERIALS

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 ot ect mat er i al s pr ovi ded f r om def ect s and make 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.

2. 1. 1 EPDM Sheet

Et hyl ene Pr opyl ene Di ene Ter pol ymer ( EPDM) , ASTM D4637/ D4637M, Type I I I , f abr i c or f l eece back, 0. 090 i nch nomi nal t hi ckness f or f ul l y adher ed appl i cat i on. The mi ni mum t hi ckness must not be l ess t han mi nus 10 per cent of t he speci f i ed t hi ckness val ue. EPDM membr ane t hi ckness speci f i ed i s excl usi ve of backi ng mat er i al on t he EPDM membr ane. Pr i nci pal pol ymer used i n manuf act ur e of t he membr ane sheet must be gr eat er t han 95 per cent EPDM. Wi dt h and l engt h of sheet must be as r ecommended by t he manuf act ur er .

2. 1. 2 Seam Tape

Seam t ape as r equi r ed by t he manuf act ur er t o achi eve t he speci f i ed warranty.

2. 1. 3 Lap Spl i ce Adhesi ve

Low vol at i l e or gani c compound ( VOC) synt het i c r ubber 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 f or mi ng wat er t i ght bond of EPDM sheet membr ane mat er i al s t o each ot her .

2. 1. 4 Bondi ng Adhesi ve

Low vol at i l e or gani c compound ( VOC) 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 EPDM membr ane mat er i al s t o i nsul at i on, wood, met al , concr et e or ot her subst r at e mat er i al s. Do not use bondi ng adhesi ve t o bond membr ane mat er i al s t o each ot her .

2. 1. 5 Lap Cl eaner , Lap Seal ant , and Edge Tr eat ment

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. 6 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.

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2. 1. 7 Membr ane Fl ashi ngs and Fl ashi ng Accessor i es

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, must be mi ni mum 0. 045 i nch mi ni mum cur ed EPDM, as r ecommended by t he r oof membr ane manuf act ur er or mi ni mum 0. 055 i nch t hi ck uncur ed EPDM sheet i n compl i ance wi t h ASTM D4811/ D4811M, Type I . Use cur ed EPDM membr ane 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 ash 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 .

2. 1. 7. 1 Fl ashi ng Tape

EPDM- backed synt het i c r ubber t ape, mi ni mum 6 i nch wi de and 12 i nch 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. 8 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 by t he r oof membr ane manuf act ur er and meet i ng t he r equi r ement s of FM 4470 and 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.

As suppl i ed and war r ant ed f or t he subst r at e t ype( s) by EPDM sheet manuf act ur er and r ecommended by EPDM sheet manuf act ur er ' s pr i nt ed dat a.

2. 1. 8. 1 St r ess Pl at es f or Fast ener s

Fl at cor r osi on- r esi st ant r ound 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; not l ess t han 2 i nch i n di amet er . Pr ovi de pr e- f or med di scs t o pr event di shi ng or cuppi ng.

2. 1. 8. 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 sui t abl e f or i nt ended at t achment pur pose and as r ecommended by t he r oof membr ane manuf act ur er .

2. 1. 8. 3 Powder - Dr i ven Fast ener s

Powder - dr i ven f ast ener s may be used onl y when appr oved i n wr i t i ng.

2. 1. 8. 4 Met al Di sks

Pr ovi de f l at met al di sks of mi ni mum 1 i nch i n di amet er . Met al di sks must be of nonf er r ous mat er i al compat i bl e wi t h t he nai l s or f ast ener s.

2. 1. 9 Pr e- Manuf act ur ed Accessor i es

Pr e- manuf act ur ed accessor i es must be manuf act ur er ' s st andar d f or i nt ended pur pose, compat i bl e wi t h t he membr ane r oof syst em and appr oved f or use by t he r oof membr ane manuf act ur er .

2. 1. 9. 1 Pr e- f abr i cat ed Cur bs

Pr ovi de 18 gauge G90 gal vani zedcur bs 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. Pr ovi de mi ni mum hei ght of 10 i nch above t he

Apr i l 2019 Page 9 SECTI ON 07 53 23 f i ni shed r oof membr ane sur f ace.

2. 1. 10 Rubber Wal kboar ds

Pr ovi de t he f ol l owi ng:

2. 1. 10. 1 Rubber Wal kboar ds

Pr ef or med r epr ocessed r ubber , compat i bl e wi t h t he EPDM sheet , 1/ 4 i nch mi ni mum t hi ckness, and wei ghi ng not l ess t han 1- 1/ 2 pounds per squar e f oot .

2. 1. 11 Wood Pr oduct s

Do not al l ow f i r e r et ar dant t r eat ed mat er i al s be i n cont act wi t h EPDM membr ane or EPDM 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. 1. 12 Membr ane Li ner

EPDM membr ane l i ner conf or mi ng t o ASTM D4637/ D4637M, or ot her wat er pr oof membr ane l i ner mat er i al as appr oved by t he r oof membr ane manuf act ur er and t he Cont r act i ng Of f i cer .

2. 2 FLASHI NG CEMENT

Pr ovi de a sel f - vul cani z i ng but yl compound f l ashi ng cement f or spl i c i ng l aps and f or f l ashi ngs wor kabl e at 20 degr ees F. Obt ai n a r ecommendat i on f or such f l ashi ng cement f r om t he r oof i ng membr ane manuf act ur er .

PART 3 EXECUTI ON

3. 1 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:

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 and ar e of pr oper hei ght t o r eci eve new r oof i ng.

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. The pl ane of t he subst r at e does not var y mor e t han 1/ 4 i nch wi t hi n an ar ea 10 by 10 f eet when checked wi t h a 10 f oot st r ai ght edge pl aced anywher e on t he subst r at e.

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

e. 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.

f . 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 nch above f i ni shed r oof i ng sur f ace.

g. 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

Apr i l 2019 Page 10 SECTI ON 07 53 23 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.

h. Avoi d cont act of EPDM mat er i al s wi t h f i r e r et ar dant t r eat ed wood, except as appr oved by t he r oof membr ane manuf act ur er and Cont r act i ng Officer.

i . Cant s ar e secur el y f ast ened i n pl ace i n t he angl es f or med by wal l s and ot her ver t i cal sur f aces. The angl e of t he cant i s 45 degr ees and t he hei ght of t he ver t i cal l eg i s not l ess t han 3- 1/ 2 i nch.

j . Vent i ng i s pr ovi ded i n accor dance wi t h t he f ol l owi ng:

( 1) Edge Vent i ng: Per i met er nai l er s ar e ker f ed acr oss t he wi dt h of t he nai l er s t o per mi t escape of gaseous pr essur e at r oof edges.

( 2) Under si de Vent i ng: Vent openi ngs ar e pr ovi ded i n st eel f or m decki ng f or cast - i n- pl ace concr et e subst r at e.

( 3) Vapor pr essur e r el i ef vent s: Hol es equal t o t he out si de di amet er of vent s ar e pr ovi ded t hr ough t he i nsul at i on wher e vent s ar e r equi r ed. Space vent s i n accor dance wi t h membr ane manuf act ur er ' s recommendations.

k. 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.

l . 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 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. 2 APPLICATION

Appl y ent i r e EPDM sheet ut i l i z i ng f ul l y 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 .

3. 2. 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 s 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 wi t h c l eaner s used f or c l eani ng EPDM 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.

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 el ast omer 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.

Apr i l 2019 Page 11 SECTI ON 07 53 23

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 EPDM 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. 2. 2 EPDM Sheet Roof i ng

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. Unr ol l EPDM sheet r oof i ng i n posi t i on wi t hout st r et chi ng membr ane.

I nspect f or hol es. Remove sect i ons of EPDM sheet r oof i ng t hat ar e damaged. Al l ow sheet s t o r el ax mi ni mum 30 mi nut es bef or e seami ng. Lap sheet s as speci f i ed, t o shed wat er , and as r ecommended by t he r oof membr ane manuf act ur er ' s publ i shed i nst al l at i on i nst r uct i ons f or t he appl i cat i on r equi r ed but not l ess t han 3 i nch i n any case.

3. 2. 3 Appl i cat i on Met hod

3. 2. 3. 1 Ful l y 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. 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 f ul l , cont i nuous bondi ng of sheet t o subst r at e. For m f i el d l ap spl i ces or seams as speci f i ed. Check al l seams and ensur e f ul l l ap seal . Appl y l ap seal ant t o al l adhesi ve f or med seams and al l cut edges of r ei nf or ced membr ane mat er i al s.

3. 2. 4 Tape Seams / Lap Spl i ces

Fi el d f or m seams, or l ap spl i ces, wi t h seam t ape i n accor dance wi t h membr ane manuf act ur er ' s pr i nt ed i nst r uct i ons and as speci f i ed. Cl ean and pr i me mat i ng sur f aces i n t he seam ar ea. Af t er pr i mer has dr i ed or set i n accor dance wi t h membr ane manuf act ur er ' s i nst r uct i ons, appl y seam t ape t o bot t om membr ane and r ol l wi t h a 3 i nch t o 4 i nch wi de smoot h s i l i cone or st eel hand r ol l er , or ot her manuf act ur er appr oved r ol l i ng devi ce, t o ensur e f ul l cont act and adhesi on of t ape t o bot t om membr ane. Tape end

Apr i l 2019 Page 12 SECTI ON 07 53 23 l aps must be mi ni mum 1 i nch. Rol l t op membr ane i nt o posi t i on t o check f or pr oper over l ap and al i gnment . Remove r el ease paper f r om t op of seam t ape and f or m seam spl i ce. Ensur e t op membr ane cont act wi t h seam t ape as r el ease paper i s r emoved. Rol l t he c l osed seam wi t h a smoot h s i l i cone or st eel hand r ol l er , r ol l i ng f i r st acr oss t he wi dt h of t he seam t hen al ong t he ent i r e l engt h, bei ng car ef ul not t o damage t he membr ane. Appl y membr ane- backed f l ashi ng t ape over T- i nt er sect i ons of r oof membr ane as r equi r ed by t he Manuf act ur er . Rol l t ape t o ensur e f ul l adhesi on and seal over T- j oi nt .

3. 2. 5 Adhesi ve Seams / Lap Spl i ces

Use onl y f i el d- appl i ed adhesi ve f or med seams i n f l ashi ng ar eas wher e appr oved by t he membr ane manuf act ur er and t he Cont r act i ng Of f i cer . Do not use adhesi ve f or med seams f or f i el d of r oof membr ane seami ng, except as appr oved by t he membr ane manuf act ur er and t he Cont r act i ng Of f i cer .

Thor oughl y and compl et el y c l ean mat i ng sur f aces of mat er i al s t hr oughout t he l ap ar ea. Remove al l di r t , dust , and cont ami nant s and al l ow t o dr y.

Appl y pr i mer as r ecommended by t he membr ane manuf act ur er . Appl y spl i ce adhesi ve wi t h a 3 i nch t o 4 i nch wi de, 1/ 2 i nch t hi ck, sol vent - r esi st ant br ush i n a smoot h, even coat wi t h l ong br ush st r okes. Bl eed out br ush mar ks. Do not appl y adhesi ve i n a c i r cul ar mot i on. Si mul t aneousl y appl y adhesi ve t o bot h mat i ng sur f aces i n an appr oxi mat e 0. 025 t o 0. 030 i nch wet f i l m t hi ckness, or ot her t hi ckness 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.

Al l ow t he spl i ce adhesi ve t o set - up i n accor dance wi t h membr ane manuf act ur er ' s pr i nt ed i nst r uct i ons. Per f or m manuf act ur er r ecommended f i el d check t o t est f or adhesi ve r eadi ness pr i or t o c l osi ng seam. Appl y a 1/ 8 i nch t o 1/ 4 i nch bead of i n- seam seal ant appr oxi mat el y 1/ 2 i nch f r om t he i nsi de edge of t he l ower membr ane sheet pr i or t o c l osi ng t he seam.

Ensur e t he i n- seam seal ant does not ext end ont o t he spl i ce adhesi ve.

Mai nt ai n t he f ul l adher ed seam wi dt h r equi r ed. Rol l t he t op membr ane ont o t he mat i ng sur f ace. Rol l t he seam ar ea wi t h a 2 i nch t o 3 i nch wi de, smoot h s i l i cone or st eel hand r ol l er . A mi ni mum of 2 hour s af t er j oi ni ng sheet s and when t he l ap edge i s dr y, c l ean t he l ap edge wi t h membr ane manuf act ur er ' s r ecommended cl eaner and appl y a 1/ 4 i nch t o 3/ 8 i nch bead of l ap seal ant cent er ed on t he seam edge. Wi t h a f eat her i ng t ool , i mmedi at el y f eat her t he l ap seal ant t o compl et el y cover t he spl i ce edge, l eavi ng a mound of seal ant over t he seam edge. Appl y l ap seal ant t o al l adhesi ve f or med seams.

3. 2. 6 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 must 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. 2. 7 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 e gr eat er t han 4 degr ees ( 1: 12) . Space f ast ener s a maxi mum of 12 i nch 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

Apr i l 2019 Page 13 SECTI ON 07 53 23 r esi st ance or wher e r ecommended by t he r oof membr ane manuf act ur er . Fl ash over f ast ener s wi t h a f ul l y adher ed l ayer of 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 FLASHINGS

3. 3. 1 General

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.

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. 3. 2 Membr ane Fl ashi ng

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 EPDM 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 .

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

Pr ovi de a f act or y edge 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

Apr i l 2019 Page 14 SECTI ON 07 53 23 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 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 must conf or m t o ANSI / SPRI RD- 1.

3. 3. 4 PRE- FABRI CATED CURBS

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 EPDM membr ane f l ashi ng mat er i al s.

3. 3. 5 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. 6 Li ght ni ng Pr ot ect i on

Fl ash l i ght ni ng pr ot ect i on syst em component s or at t ach t o t he r oof membr ane i n a manner accept abl e t o t he r oof membr ane manuf act ur er .

3. 4 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. 5 CORRECTI ON OF DEFI CI ENCI ES

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 cor r ect i ve act i ons must be as di r ect ed by t he Cont r act i ng Of f i cer .

3. 6 CLEAN UP

Remove debr i s, scr aps, cont ai ner s and ot her r ubbi sh and t r ash r esul t i ng f r om i nst al l at i on of t he r oof i ng syst em f r om j ob si t e each day.

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

Apr i l 2019 Page 15 SECTI ON 07 53 23 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 .

Seal of f f l ut es i n met al decki ng al ong t he cut of f edge. 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 mat er i al s. 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, Cont r act or must 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 f ol l owi ng:

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 speci f i cat i on, pr i or t o appl i cat i on of subsequent mat er i al s.

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

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.

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

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

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 application.

Membr ane i s al l owed t o r el ax pr i or t o seami ng. 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 r equi r ed.

Membr ane i s pr oper l y over l apped.

Membr ane seami ng i s as speci f i ed and seams ar e hand r ol l ed t o ensur e f ul l adhesi on and bond wi dt h. I n- seam seal ant i s appl i ed when adhesi ve seams ar e used i n t he f i el d of t he r oof . Al l seams ar e

Apr i l 2019 Page 16 SECTI ON 07 53 23 checked at t he end of each wor k day.

Appl i ed membr ane i s i nspect ed and r epai r ed as necessar y pr i or t o bal l ast i nst al l at i on.

Membr ane i s f ul l y adher ed wi t hout r i dges, wr i nkl es, k i nks, f i shmout hs.

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

Associ at ed f l ashi ngs 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.

Bal l ast i s wi t hi n t he speci f i ed wei ght r ange.

Tempor ar y pr ot ect i on measur es ar e i n pl ace at t he end of each wor k shift.

3. 8. 2 Manuf act ur er ' s I nspect i on

Manuf act ur er ' s t echni cal r epr esent at i ve must v i s i t t he s i t e a mi ni mum of t hr ee t i mes dur i ng t he i nst al l at i on f or pur poses of r evi ewi ng mat er i al s i nst al l at i on pr act i ces and adequacy of wor k i n pl ace. I nspect i ons must occur dur i ng t he f i r st 20 squar es of membr ane i nst al l at i on, at mi d- poi nt of t he i nst al l at i on, and at subst ant i al compl et i on, at a mi ni mum. Af t er each i nspect i on, submi t a r epor t s i gned by t he manuf act ur er ' s t echni cal r epr esent at i ve t o t he Cont r act i ng Of f i cer wi t hi n 3 wor ki ng days. Not e over al l qual i t y of wor k, def i c i enci es and any ot her concer ns, and r ecommended cor r ect i ve act i on.

3. 8. 3 Roof Dr ai n Test

Af t er compl et i ng r oof i ng but pr i or t o Gover nment accept ance, per f or m t he f ol l owi ng t est f or wat er t i ght ness. Pl ug r oof dr ai ns and f i l l wi t h wat er t o edge of dr ai n sump f or 8 hour s. Ret r of i t r oof dr ai ns must conf or m t o ANSI / SPRI RD- 1. Do not pl ug secondar y over f l ow dr ai ns at t he same t i me as adj acent pr i mar y dr ai n. To ensur e some dr ai nage f r om r oof , do not t est al l dr ai ns at same t i me. Measur e wat er at begi nni ng and end of t he t est per i od. When pr eci pi t at i on occur s dur i ng t est per i od, r epeat t est . When wat er l evel f al l s , r emove wat er , t hor oughl y dr y, and i nspect i nst al l at i on;

r epai r or r epl ace r oof i ng at dr ai n t o pr ovi de f or a pr oper l y i nst al l ed wat er t i ght f l ashi ng seal . Repeat t est unt i l t her e i s no wat er l eakage.

3. 9 I NSTRUCTI ONS TO GOVERNMENT PERSONNEL

Fur ni sh wr i t t en and ver bal i nst r uct i ons on pr oper mai nt enance pr ocedur es t o desi gnat ed Gover nment per sonnel . Fur ni sh i nst r uct i ons by a compet ent r epr esent at i ve of t he r oof membr ane manuf act ur er and i ncl ude a mi ni mum of 4 hour s on mai nt enance and emer gency r epai r of t he membr ane. I ncl ude a demonst r at i on of membr ane r epai r , and gi ve sour ces of r equi r ed speci al t ool s. Fur ni sh i nf or mat i on on saf et y r equi r ement s dur i ng mai nt enance and emer gency r epai r oper at i ons.

3. 10 I NFORMATI ON CARD

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 anda 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 must be 8- 1/ 2 by 11 i nch mi ni mum. I nf or mat i on car d must 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, Apr i l 2019 Page 17 SECTI ON 07 53 23 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 Of f i cer .

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