Specs_07_27_10.00_10.pdf

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BUI LDI NG AI R BARRI ER SYSTEM

05/14

PART 1 GENERAL

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1. 1 SUMMARY

Thi s Sect i on speci f i es t he const r uct i on and qual i t y cont r ol of t he i nst al l at i on of an ai r bar r i er syst em. Const r uct t he ai r bar r i er syst em i ndi cat ed, t aki ng r esponsi bi l i t y f or t he means, met hods, and wor kmanshi p of t he i nst al l at i on of t he ai r bar r i er syst em. The ai r bar r i er must be cont i guous and connect ed acr oss al l sur f aces of t he encl osed ai r bar r i er envel ope i ndi cat ed. The maxi mum l eakage r equi r ement s of i ndi v i dual ai r bar r i er component s and mat er i al s ar e speci f i ed i n t he ot her Speci f i cat i on Sect i ons cover i ng t hese i t ems.

Thi s Sect i on al so def i nes t he maxi mum al l owabl e l eakage of t he f i nal ai r bar r i er syst em. The wor kmanshi p must be adequat e t o meet t he maxi mum al l owabl e l eakage r equi r ement s of t hi s Speci f i cat i on. Test t he assembl ed ai r bar r i er syst em t o demonst r at e t hat t he bui l di ng envel ope i s pr oper l y seal ed and i nsul at ed. Passi ng t he ai r bar r i er syst em l eakage t est and t her mogr aphy t est wi l l r esul t i n syst em accept ance. Conf or m ai r bar r i er syst em l eakage and t her mogr aphy t est i ng and r epor t i ng t o t he r equi r ement s of Sect i on 07 05 23 PRESSURE TESTI NG AN AI R BARRI ER SYSTEM FOR AI R

TIGHTNESS.

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1. 2 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 enced wi t hi n t he t ext by t he basi c desi gnat i on onl y.

ASTM I NTERNATI ONAL ( ASTM)

ASTM D4541 ( 2009; E 2010) Pul l - Of f St r engt h of Coat i ngs Usi ng Por t abl e Adhesi on Test er s

1. 3 DEFINITIONS

The f ol l owi ng t er ms as t hey appl y t o t hi s Sect i on:

1. 3. 1 Ai r Bar r i er Accessor y

Pr oduct s desi gnat ed t o mai nt ai n ai r t i ght ness bet ween ai r bar r i er mat er i al s, ai r bar r i er assembl i es and ai r bar r i er component s, t o f ast en t hem t o t he st r uct ur e of t he bui l di ng, or bot h ( e. g. , seal ant s, t apes, backer r ods, t r ansi t i on membr anes, f ast ener s, st r appi ng, pr i mer s) .

1. 3. 2 Ai r Bar r i er Assembl y

The combi nat i on of ai r bar r i er mat er i al s and ai r bar r i er accessor i es t hat

SECTI ON 07 27 10. 00 10 Page 1 Amendment 0002 ar e desi gnat ed and desi gned wi t hi n t he envi r onment al separ at or t o act as a cont i nuous bar r i er t o t he movement of ai r t hr ough t he envi r onment al separator.

1. 3. 3 Ai r Bar r i er Component

Pr e- manuf act ur ed el ement s such as wi ndows, door s, damper s, and ser v i ce el ement s t hat ar e i nst al l ed i n t he envi r onment al separ at or .

1. 3. 4 Ai r Bar r i er Envel ope

The combi nat i on of ai r bar r i er assembl i es and ai r bar r i er component s, connect ed by ai r bar r i er accessor i es t hat ar e desi gned t o pr ovi de a cont i nuous bar r i er t o t he movement of ai r t hr ough an envi r onment al separ at or . Ther e may be mor e t han one ai r bar r i er envel ope i n a s i ngl e bui l di ng. Al so known as Ai r Bar r i er Syst em.

1. 3. 5 Ai r Bar r i er Mat er i al

A bui l di ng mat er i al t hat i s desi gned and const r uct ed t o pr ovi de t he pr i mar y r esi st ance t o ai r f l ow t hr ough an ai r bar r i er assembl y.

1. 3. 6 Ai r Bar r i er Syst em

Same as AI R BARRI ER ENVELOPE.

1. 3. 7 Ai r Leakage Rat e

The r at e of ai r f l ow ( CFM) dr i ven t hr ough a uni t sur f ace ar ea ( sq. f t . ) of an assembl y or syst em by a uni t st at i c pr essur e di f f er ence ( Pa) acr oss t he assembl y. ( exampl e: 0. 25 CFM/ sq. f t . @ 75 Pa)

1. 3. 8 Ai r Leakage

The t ot al ai r f l ow ( CFM) dr i ven t hr ough t he ai r bar r i er syst em by a uni t st at i c pr essur e di f f er ence ( Pa) acr oss t he ai r bar r i er envel ope. ( exampl e:

6500 CFM @ 75 Pa)

1. 3. 9 Ai r Per meance

The r at e of ai r f l ow ( CFM) t hr ough a uni t ar ea ( sq. f t . ) of a mat er i al dr i ven by uni t st at i c pr essur e di f f er ence ( Pa) acr oss t he mat er i al . ( exampl e:

0. 004 CFM/ sq. f t . @ 75 Pa)

1. 3. 10 Envi r onment al Separ at or

The par t s of a bui l di ng t hat separ at e t he cont r ol l ed i nt er i or envi r onment f r om t he uncont r ol l ed ext er i or envi r onment , or t hat separ at e spaces wi t hi n a bui l di ng t hat have di ssi mi l ar envi r onment s. Al so known as t he Cont r ol Layer.

1. 4 PREPARATORY PHASE OR PRECONSTRUCTI ON CONFERENCE

Or gani ze pr e- const r uct i on conf er ences bet ween t he ai r bar r i er i nspect or and t he Subcont r act or s i nvol ved i n t he const r uct i on of or penet r at i on of t he ai r bar r i er syst em t o di scuss wher e t he wor k of each Subcont r act or begi ns and ends, t he sequence of i nst al l at i on, and each Subcont r act or ' s r esponsi bi l i t y t o ensur e ai r t i ght j oi nt s, j unct ur es, penet r at i ons and t r ansi t i ons bet ween mat er i al s. Di scuss t he pr oduct s, and assembl i es of

SECTI ON 07 27 10. 00 10 Page 2 pr oduct s speci f i ed i n t he di f f er ent sect i ons t o be i nst al l ed by t he di f f er ent Subcont r act or s.

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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 i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . 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- 04 Sampl es

Mock- Up; G

Bui l d one as speci f i ed pr i or t o bui l di ng const r uct i on.

SD- 06 Test Repor t s

Desi gn Revi ew Repor t ; G, DO

Two copi es not l at er t han 14 days af t er appr oval of t he Ai r Bar r i er I nspect or Qual i f i cat i ons.

Test i ng and I nspect i on; G, RO

SD- 07 Cer t i f i cat es

Ai r Bar r i er I nspect or ; G, RO

Two copi es 30 days af t er Not i ce t o Pr oceed.

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1. 6 AI R BARRI ER ENVELOPE SURFACE AREA AND LEAKAGE REQUI REMENTS

The bui l di ng ai r bar r i er syst ems must meet t he f ol l owi ng l eakage r equi r ement s. The al l owabl e l eakage r at e and t he maxi mum l eakage ar e at a di f f er ent i al t est pr essur e of 75 Pa.

Ai r Bar r i er Envel ope 1 and 2

Sur f ace Ar ea ( each) 44, 915 squar e f eet

Ar chi t ect ur al Onl y Test :

Al l owabl e l eakage r at e 0. 40 CFM/ sq. f t

Ai r Bar r i er Envel ope 3

Sur f ace Ar ea 7, 872 squar e f eet

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Ar chi t ect ur al Onl y Test :

Al l owabl e l eakage r at e 0. 40 CFM/ sq. f t

Ai r Bar r i er Envel ope 4

Sur f ace Ar ea 6, 406 squar e f eet

Ar chi t ect ur al Onl y Test :

Al l owabl e l eakage r at e 0. 40 CFM/ sq. f t

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1. 7 AI R BARRI ER I NSPECTOR

Empl oy a desi gnat ed Ai r Bar r i er I nspect or on t hi s Pr oj ect . The Ai r Bar r i er I nspect or per f or ms a Desi gn Revi ew, over sees qual i t y cont r ol t est i ng speci f i ed i n t hese Speci f i cat i ons, per f or ms qual i t y cont r ol ai r bar r i er i nspect i on as speci f i ed, i nt er f aces wi t h t he desi gner and pr oduct manuf act ur er ' s r epr esent at i ves t o assur e al l i nst al l at i on r equi r ement s ar e met , and coor di nat es ef f or t s bet ween al l wor ker s i nst al l i ng or penet r at i ng t he ai r bar r i er mat er i al s. Qual i f i cat i on f or t he Ai r Bar r i er I nspect or ar e as f ol l ows:

a. Tr ai ni ng and cer t i f i cat i on as an Ai r Bar r i er I nst al l er f r om t he Ai r Bar r i er Associ at i on of Amer i ca ( ABAA) or ot her t hi r d par t y ai r bar r i er association.

b. Exper i ence coor di nat i ng and i nst r uct i ng per sonnel i nvol ved i n t he i nst al l at i on, j oi ni ng, and seal i ng of ai r bar r i er mat er i al s and components.

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1. 8 DESI GN REVI EW

Revi ew t he Cont r act Pl ans and Speci f i cat i ons and advi se t he Cont r act i ng Of f i cer of any def i c i enci es t hat woul d pr event t he const r uct i on of an ef f ect i ve ai r bar r i er syst em. Pr ovi de a Desi gn Revi ew Repor t i ndi v i dual l y l i s t i ng each def i c i ency and t he cor r espondi ng pr oposed cor r ect i ve act i on necessar y f or pr oper ai r bar r i er syst em.

PART 2 PRODUCTS

Not Used.

PART 3 EXECUTI ON

3. 1 QUALI TY CONTROL

3. 1. 1 Document at i on and Repor t i ng

Document t he ent i r e i nst al l at i on pr ocess on dai l y j ob s i t e r epor t s. These r epor t s i ncl ude i nf or mat i on on t he I nst al l er , subst r at es, subst r at e pr epar at i on, pr oduct s used, ambi ent and subst r at e t emper at ur e, t he l ocat i on of t he ai r bar r i er i nst al l at i on, t he r esul t s of t he qual i t y cont r ol

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3. 1. 2 Const r uct i on Mock- Up

a. Pr epar e a const r uct i on mock- up t o demonst r at e pr oper i nst al l at i on of t he ai r bar r i er assembl i es and component s. I ncl ude ai r bar r i er syst em connect i ons bet ween f l oor and wal l , wal l and wi ndow, wal l and r oof .

Al so, i ncl ude t he seal i ng met hod bet ween membr ane j oi nt s at t r ansi t i ons f r om one mat er i al or component t o anot her , at pi pe or condui t penet r at i ons of t he wal l and r oof , and at duct penet r at i on of t he wal l and r oof . Wor k wi l l not begi n unt i l t he mock- up i s sat i sf act or y t o t he Cont r act i ng Of f i cer .

b. Si ze t he mock- up t o appr oxi mat el y 8 f eet l ong by 8 f eet hi gh. The mock- up must be r epr esent at i ve of pr i mar y ext er i or wal l assembl i es and gl azi ng component s i ncl udi ng backup wal l and t ypi cal penet r at i ons as accept abl e t o t he Cont r act i ng Of f i cer . A cor ner of t he act ual bui l di ng may be used as t he mock- up.

c. Mock- Up Test s f or Adhesi on: Test t he mock- up of mat er i al s f or adhesi on i n accor dance wi t h manuf act ur er ' s r ecommendat i ons. Per f or m t he t est af t er t he cur i ng per i od r ecommended by t he manuf act ur er . Recor d t he mode of f ai l ur e and t he ar ea whi ch f ai l ed i n accor dance wi t h ASTM D4541.

When t he ai r bar r i er mat er i al manuf act ur er has est abl i shed a mi ni mum adhesi on l evel f or t he pr oduct on t he par t i cul ar subst r at e, t he i nspect i on r epor t must i ndi cat e whet her t hi s r equi r ement has been met .

Wher e t he manuf act ur er has not decl ar ed a mi ni mum adhesi on val ue f or t hei r pr oduct / subst r at e combi nat i on, s i mpl y r ecor d t he val ue.

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3. 1. 2 Qual i t y Cont r ol Test i ng And I nspect i on

Conduct t he f ol l owi ng t est s and i nspect i ons as appl i cabl e i n t he pr esence of t he Cont r act i ng Of f i cer dur i ng i nst al l at i on of t he ai r bar r i er syst em, and submi t qual i t y cont r ol r epor t s as i ndi cat ed bel ow.

a. Pr ovi de a Dai l y Repor t of Obser vat i ons wi t h a copy t o t he Cont r act i ng Of f i cer .

b. I nspect t o assur e cont i nui t y of t he ai r bar r i er syst em t hr oughout t he bui l di ng encl osur e and t hat al l gaps ar e cover ed, t he cover i ng i s st r uct ur al l y sound, and al l penet r at i ons ar e seal ed al l owi ng f or no i nf i l t r at i on or exf i l t r at i on t hr ough t he ai r bar r i er syst em.

c. I nspect t o assur e st r uct ur al suppor t of t he ai r bar r i er syst em t o wi t hst and desi gn ai r pr essur es.

d. I nspect t o assur e masonr y sur f aces r ecei v i ng ai r bar r i er mat er i al s ar e smoot h, c l ean, and f r ee of cavi t i es, pr ot r usi ons and mor t ar dr oppi ngs, wi t h mor t ar j oi nt s st r uck f l ush or as r equi r ed by t he manuf act ur er of t he ai r bar r i er mat er i al .

e. I nspect and t est t o assur e Si t e condi t i ons f or appl i cat i on t emper at ur e, and dr yness of subst r at es ar e wi t hi n gui del i nes.

f . I nspect t o assur e subst r at e sur f aces ar e pr oper l y pr i med i f appl i cabl e

SECTI ON 07 27 10. 00 10 Page 5 and i n accor dance wi t h manuf act ur er ' s i nst r uct i ons. Pr i mi ng must ext end at l east 2 i nches beyond t he ai r bar r i er mat er i al t o make i t obvi ous t hat t he pr i mer was appl i ed t o t he subst r at e bef or e t he ai r bar r i er mat er i al .

g. I nspect t o assur e l aps i n mat er i al s ar e at l east a 2- i nch mi ni mum, shi ngl ed i n t he cor r ect di r ect i on or mast i c appl i ed i n accor dance wi t h manuf act ur er ' s r ecommendat i ons, and wi t h no f i shmout hs.

h. I nspect t o assur e t hat a r ol l er has been used t o enhance adhesi on.

I dent i f y any def ect s such as f i shmout hs, wr i nkl es, ar eas of l ost adhesi on, and i mpr oper cur i ng. Not e t he i nt ended r emedy f or t he deficiencies.

i . Measur e appl i cat i on t hi ckness of l i qui d appl i ed mat er i al s t o assur e t hat manuf act ur er ' s speci f i cat i ons f or t he speci f i c subst r at e ar e met .

j . I nspect t o assur e t hat t he cor r ect mat er i al s ar e i nst al l ed f or compatibility.

k. I nspect t o assur e pr oper t r ansi t i ons f or change i n di r ect i on and st r uct ur al suppor t at gaps.

l . I nspect t o assur e pr oper connect i on bet ween assembl i es ( membr ane and seal ant s) f or c l eani ng, pr epar at i on and pr i mi ng of sur f aces, st r uct ur al suppor t , i nt egr i t y, and cont i nui t y of seal .

m. Per f or m adhesi on t est s f or f l ui d- appl i ed and sel f - adher ed ai r bar r i er membr anes t o assur e t hat t he manuf act ur er ' s speci f i ed adhesi on st r engt h pr oper t i es ar e met . Det er mi ne t he bond st r engt h of coat i ngs t o subst r at e i n accor dance wi t h ASTM D4541.

n. Pr ovi de wr i t t en t est r epor t s of al l t est s per f or med.

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3. 2 REPAI R AND PROTECTI ON

Upon compl et i on of i nspect i on, testing, sampl e r emoval and si mi l ar ser vi ces, r epai r damaged const r uct i on and r est or e subst r at es, coat i ngs, and f i ni shes. Pr ot ect const r uct i on exposed by or f or qual i t y cont r ol ser vi ce act i v i t i es, and pr ot ect r epai r ed const r uct i on.

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