Technical Exhibit J - Building Air Barrier System.pdf

USACE / NAVFAC / AFCEC UFGS- 07 27 10 ( August 2023)

Pr epar i ng Act i v i t y: USACE Super sedi ng UFGS- 07 27 10. 00 10 ( August 2019)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Apr i l 2024

SECTI ON TABLE OF CONTENTS

DI VI SI ON 07 - THERMAL AND MOI STURE PROTECTI ON

SECTI ON 07 27 10

BUI LDI NG AI R BARRI ER SYSTEM

08/ 23

PART 1 GENERAL

1. 1 SUMMARY

1. 2 REFERENCES

1. 3 DEFI NI TI ONS

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

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

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

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

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

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

1. 3. 7 Ai r Leakage Rat e

1. 3. 8 Ai r Leakage

1. 3. 9 Ai r Per meance

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

1. 3. 11 Vapor Per meance

1. 4 PREPARATORY PHASE OR PRECONSTRUCTI ON CONFERENCE

1. 5 SUBMI TTALS

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

1. 7 AI R BARRI ER I NSPECTOR

1. 8 DESI GN REVI EW

PART 2 PRODUCTS

2. 1 AI R BARRI ER

PART 3 EXECUTI ON

3. 1 QUALI TY CONTROL

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

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

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

3. 2 REPAI R AND PROTECTI ON

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- - End of Sect i on Tabl e of Cont ent s - -

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USACE / NAVFAC / AFCEC UFGS- 07 27 10 ( August 2023)

Pr epar i ng Act i v i t y: USACE Super sedi ng UFGS- 07 27 10. 00 10 ( August 2019)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Apr i l 2024

SECTI ON 07 27 10

BUI LDI NG AI R BARRI ER SYSTEM

08/ 23

NOTE: Thi s gui de speci f i cat i on cover s Cont r act or r esponsi bi l i t i es, qual i t y cont r ol , and maxi mum l eakage r equi r ement s of t he const r uct ed ai r bar r i er syst em. Thi s speci f i cat i on must be accompani ed by pl ans showi ng and det ai l i ng t he ai r bar r i er ; i t i s not i nt ended t o st and al one i n any set of const r uct i on document s. Thi s speci f i cat i on i s i nt ended f or use on new const r uct i on and addi t i ons, and on r enovat i ons i nvol v i ng maj or upgr ade t o t he bui l di ng envel ope.

Adher e t o UFC 1- 300- 02 Uni f i ed Faci l i t i es Gui de Speci f i cat i ons ( UFGS) For mat St andar d when edi t i ng t hi s gui de speci f i cat i on or pr epar i ng new pr oj ect speci f i cat i on sect i ons. Edi t t hi s gui de speci f i cat i on f or pr oj ect speci f i c r equi r ement s by addi ng, del et i ng, or r evi s i ng t ext . For br acket ed i t ems, choose appl i cabl e i t em( s) or i nser t appr opr i at e i nf or mat i on.

Remove i nf or mat i on and r equi r ement s not r equi r ed i n r espect i ve pr oj ect , whet her or not br acket s ar e pr esent .

Comment s, suggest i ons and r ecommended changes f or t hi s gui de speci f i cat i on ar e wel come and shoul d be submi t t ed as a Cr i t er i a Change Request ( CCR) .

PART 1 GENERAL

NOTE: UFC 3- 101- 01 Ar chi t ect ur e gi ves ai r bar r i er syst em r equi r ement s f or new const r uct i on and r enovat i ons.

Test i ng of t he ai r bar r i er syst em i s cover ed i n t he compani on UFGS 01 91 19 BUI LDI NG ENCLOSURE COMMI SSI ONI NG. I f ai r bar r i er syst em t est i ng i s

SECTI ON 07 27 10 Page 3 r equi r ed by t he UFC, t he t est i ng speci f i cat i on must accompany t hi s speci f i cat i on i n t he const r uct i on document s.

Thi s speci f i cat i on i s appl i cabl e t o ai r bar r i er syst ems i nst al l ed i n new bui l di ng const r uct i on and i n maj or r enovat i ons i nvol v i ng upgr ades t o t he bui l di ng envel ope; i t i s not appl i cabl e t o uncondi t i oned bui l di ngs. Thi s speci f i cat i on i s i nt ended t o def i ne Cont r act or r esponsi bi l i t i es f or t he const r uct i on of t he ai r bar r i er syst em acr oss t he si x s i des of a bui l di ng t hat when i nst al l ed pr oper l y wi l l cont r ol t he i nf i l t r at i on or exf i l t r at i on of ai r t hr ough t he ai r bar r i er syst em.

A t i ght bui l di ng i s essent i al t o a pr oper l y f unct i oni ng HVAC syst em, t o r educe ener gy consumpt i on, and t o pr event pr obl ems ar i s i ng f r om excessi ve i nf i l t r at i on or exf i l t r at i on i nt o or out of t he envi r onment al l y condi t i oned spaces.

UFC 3- 101- 01 Ar chi t ect ur e i s r ecommended r eadi ng f or t he desi gner . Al so r ecommended i s " Ai r Bar r i er Syst ems i n Bui l di ngs" by Wagdy Ani s, FAI A; avai l abl e at ht t ps: / / www. wbdg. or g/ r esour ces/ ai r - bar r i er - syst ems- bui l di ngs .

Addi t i onal r esour ces i ncl ude:

EP 415- 1- 261 Vol 6 BUI LDI NG ENVELOPES f or const r uct i on r el at ed aspect s of t he ai r bar r i er syst em and ot her bui l di ng envel ope component s.

Annex 61 Deep Ener gy Ret r of i t Gui de Chapt er 10 and Appendi x G Ai r Ti ght ness f or Gui dance on Renovat i on and Ret r of i t Appl i cat i ons and St r at egi es.

AI R BARRI ER SYSTEM CONCEPTS AND DESI GNER NOTES:

1. Desi gn a cont i nuous ai r bar r i er syst em t o cont r ol ai r l eakage i nt o, or out of , t he condi t i oned space.

2. On dr awi ngs dedi cat ed t o t he ai r bar r i er syst em, i dent i f y t he sur f ace boundar y of t he bui l di ng ai r bar r i er syst em i n pl an and i n bui l di ng sect i on v i ews. Thi nk of t he ai r bar r i er syst em as a seal ed bal l oon.

3. Keep i n mi nd t hat wi ndow and door component s ar e par t of t he bui l di ng ai r bar r i er syst em. One must be abl e t o t r ace a cont i nuous pl ane of ai r - t i ght ness t hr oughout each ai r bar r i er syst em envel ope.

4. Of cour se, i nt ake, exhaust , and r el i ef damper s ar e par t of t he ai r bar r i er syst em. I f t hese damper s ar e not l ocat ed at or near t he bui l di ng wal l , t hen t he duct bet ween t he ai r bar r i er i n t he ext er i or wal l and t he damper i s al so par t of t he ai r bar r i er syst em and must be wel l seal ed.

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5. Wal l s of vent i l at ed cr awl spaces l ogi cal l y cannot be t he boundar y of t he ai r bar r i er syst em. Nor can t he r oof above a vent i l at ed at t i c be par t of an ai r bar r i er syst em.

6. Def i ni ng t he ai r bar r i er syst em boundar y i s t he r esponsi bi l i t y of t he bui l di ng desi gner . Pl an vi ews shoul d show t he hor i zont al out l i ne ( by dashed l i nes) of t he ai r bar r i er syst em and any i ndi v i dual ai r bar r i er zones. Rooms wi t h per manent f i xed openi ngs t o t he out door envi r onment cannot be i ncl uded i n t he ai r bar r i er envel ope because such openi ngs woul d r epr esent a hol e i n t he ai r bar r i er envel ope ( t he bal l oon) .

7. Bui l di ng and wal l sect i ons shoul d show t he ver t i cal out l i ne ( by dashed l i nes) of t he ai r bar r i er syst em f r om f l oor t o r oof or cei l i ng.

8. Wal l and r oof sect i ons and det ai l s shoul d show t he l ocat i on of t he ai r bar r i er membr ane wi t hi n t he ext er i or bui l di ng envel ope.

9. For cavi t y wal l const r uct i on ut i l i z i ng i nsul at i on boar d i nsi de t he cavi t y, ai r bar r i er mat er i al s l ocat ed on t he out boar d s i de of t he wal l syst em and t he i nt er i or s i de of t he i nsul at i on at t ached t o a dur abl e subst r at e i s subj ect t o l ess expansi on and cont r act i on t han i f l ocat ed on t he out er s i de.

Addi t i onal l y, t hi s l ocat i on i s t he pr oper hygr ot her mal l ocat i on f or t he vapor pl ane of t he wal l assembl y f or st ud cavi t y or masonr y bl ock wal l s.

10. The concr et e mat er i al can act as t he ai r / wat er / vapor bar r i er on pr e- cast , cast - i n- pl ace concr et e, and I nsul at ed Concr et e For m ( I CF) wal l s.

11. Ai r bar r i er mat er i al s t hat al so ser ve as i nt er i or f i ni shes ar e di scour aged because such mat er i al s ar e subj ect t o damage, di f f i cul t t o seal , and of t en compr omi sed by occupant penet r at i ons.

12. An ai r bar r i er mat er i al l ocat ed on t he out boar d s i de of t he ext er i or wal l assembl y can of t en ser ve as t he ai r , vapor and wat er r esi st i ve l ayer of t he wal l syst em. Common st ud cavi t y or masonr y wal l t ypes must i ncor por at e an ai r / wat er / vapor cont r ol l ayer on t he out boar d s i de of t he wal l assembl y and when doi ng so, t hi s shoul d be a Cl ass 1 vapor bar r i er / r et ar der by mat er i al per meance. Appl y i ng an ai r bar r i er wi l l est abl i sh t he vapor pl ane of t he wal l syst em i n t he cor r ect l ocat i on and al l ow i nwar d and out war d dr yi ng pot ent i al f or t he assembl y f r om t hi s pl ane. Consi der t he vapor per meance of al l mat er i al s and t hei r r el at i ve posi t i on wi t hi n t he ext er i or envel ope t o assur e t he i ncr easi ng per meance of t he mat er i al s f r om t he vapor pl ane t o t he i nner , condi t i oned space sur f ace of t he wal l syst em.

Par t i cul ar at t ent i on shoul d be pai d t o t he c l i mat i c

SECTI ON 07 27 10 Page 5 condi t i ons t he wal l syst em wi l l be s i t uat ed i n and exper i ence over t he l i f et i me of t he assembl y. Ai r bar r i er mat er i al s may have l ow wat er vapor per meance and act as i nt ended, or i f l ocat ed i ncor r ect l y, uni nt ended vapor r et ar der s or bar r i er s. Ot her mat er i al s used wi t h t he envel ope may al so have l ow wat er vapor per meance. Car ef ul consi der at i on r egar di ng t he l ocat i on of such mat er i al s i s cr uci al t o avoi d vapor bar r i er t emper at ur e bel ow t he dew poi nt t emper at ur e of t he ai r on ei t her s i de, and t o avoi d doubl e vapor bar r i er s t hat pr event i nwar d dr yi ng t o t he condi t i oned space and can t r ap condensat i on wi t hi n t he t her mal envel ope. Such condi t i ons can cont r i but e t o mol d pr obl ems and mat er i al f ai l ur e pr obl ems. The t her mal r esi st ance, vapor per meance, and r el at i ve t her mal posi t i on of t he component mat er i al s must be sel ect ed such t hat at al l l ocat i ons wi t hi n t he envel ope, t he dew poi nt t emper at ur e i s l ess t han t he l ocal sur f ace t emper at ur e.

I f sof t war e such as WUFI hygr ot her mal model i ng i s avai l abl e, use i t t o ver i f y wal l syst em per f or mance or t o model uni que condi t i ons or bui l di ng appl i cat i ons t hat ar e at ypi cal f or a gi ven condi t i on or c l i mat e.

13. Keep i n mi nd t hat ai r bar r i er membr anes must wi t hst and f or ces due t o posi t i ve and negat i ve pr essur es caused by wi nd and St ack Ef f ect . As a poi nt of r ef er ence, many r oof s ar e desi gned f or a wi nd upl i f t pr essur e of 4. 3 kPa 90 l b/ sq. f t .

Bui l di ng wr aps ar e par t i cul ar l y suscept i bl e t o wi nd f or ces unl ess sandwi ched bet ween r i gi d wal l component s ( exampl e: sheat hi ng and boar d i nsul at i on) . Ot her wi se, wr aps may exper i ence excessi ve f l exi ng and st r essi ng and poi nt l oadi ng of t he secur i ng f ast ener s.

14. On t he dr awi ngs, i dent i f y each ai r bar r i er mat er i al , membr ane, coat i ng, wi ndow component , door component , damper s, and ot her component s t hat compose t he cont i nuous ai r bar r i er envel ope.

Mat er i al s t hat ar e par t of t he desi gnat ed cont i nuous ai r bar r i er syst em must be i dent i f i ed as such.

Al t hough many mat er i al s used i n ext er i or assembl i es ar e ai r t i ght , t hey may or may not ser ve as par t of t he desi gnat ed cont i nuous ai r bar r i er syst em.

15. I n a r oof assembl y, t ypi cal l y l ocat e t he ai r bar r i er mat er i al on t he i nsi de of t he i nsul at i on and at t ached t o a dur abl e subst r at e. Desi gn r oof assembl i es i n accor dance wi t h UFC 3- 110- 03 Roof i ng.

16. Det ai l t he connect i on of r oof and wal l ai r bar r i er mat er i al s. The r oof - wal l i nt er f ace has been t he sour ce of maj or ai r i nf i l t r at i on and exf i l t r at i on i n t he past due t o t he many i r r egul ar l y shaped decki ng and st r uct ur al suppor t member s

SECTI ON 07 27 10 Page 6 i nt er sect i ng at t hi s poi nt , and i nsuf f i c i ent at t ent i on t o det ai l t o t he ai r bar r i er syst em at t hi s l ocat i on. Al t hough sequenci ng t he connect i on of t he r oof - wal l ai r bar r i er s i s t he Cont r act or ' s r esponsi bi l i t y , dr awi ng not es suggest i ng a sequence of t he t r ades may ser ve as hel pf ul r emi nder s t o t he i nst al l er .

17. Det ai l t he connect i on of wal l and f l oor ai r bar r i er mat er i al s.

18. Det ai l t he connect i on of t he wal l ai r bar r i er mat er i al s t o wi ndow and door component s.

19. Det ai l t he penet r at i ons of t he ai r bar r i er envel ope by pi pe, duct s, and condui t showi ng t he met hod of seal i ng t he penet r at i on. Mi ni mi ze ai r bar r i er penet r at i ons t o t he gr eat est ext ent possi bl e.

20. Det ai l t he ai r bar r i er mat er i al t o be cont i nuous under or ar ound el ect r i cal boxes and panel s, pl umbi ng f i xt ur e boxes, and ot her i t ems af f ect i ng ai r bar r i er syst em cont i nui t y. Do not penet r at e t he ai r bar r i er envel ope wi t h l i ght i ng f i x t ur es.

Cont i nui t y and ai r t i ght ness i s easi er t o achi eve when ai r bar r i er s mat er i al s ar e l ocat ed out boar d of t he cavi t i es t hat cont ai n wi r i ng, condui t , and pl umbi ng.

21. I n ot her speci f i cat i on sect i ons, speci f y t he ai r bar r i er mat er i al s used i n t he syst em. As def i ned by t he Ai r Bar r i er Associ at i on of Amer i ca ( ABAA) al l ai r bar r i er mat er i al s must have an ai r per meance l ess t han 0. 02 L/ s- m2 0. 004 CFM/ sq- f t at 75 Pa when t est ed i n accor dance wi t h ASTM E2178.

22. I dent i f y t he al l owabl e l eakage r at es of wi ndows, ext er i or door s, cur t ai n wal l assembl i es, skyl i ght s, damper s, and al l ot her such ai r bar r i er component s i n t he speci f i cat i on sect i ons cover i ng t hese component s.

23. Not e t hat t he Ener gy St ar pr ogr am has no ai r l eakage r equi r ement f or wi ndows and door s. However , ASHRAE 90. 1 cont ai ns maxi mum l eakage val ues f or f enest r at i on and door s det er mi ned i n accor dance wi t h NFRC 400. These ar e mi ni mal r equi r ement s and do not r epr esent st at e of t he ar t . The I ECC st andar d cont ai ns l eakage l i mi t s f or door s and wi ndows t hat may be usef ul as a gui del i ne. Be sur e t he speci f i cat i ons f or f enest r at i on and door s i ncl ude maxi mum ai r l eakage val ues.

24. Leakage r at es f or sect i onal t ype over head door s ar e publ i shed by manuf act ur er s, however , t her e i s no known manuf act ur er who publ i shes t est ed l eakage per f or mance f or r ol l - up t ype over head door assembl i es. For r ol l - up t ype door s, speci f y t he best weat her st r i ppi ng avai l abl e i n t he speci f i cat i on

SECTI ON 07 27 10 Page 7 sect i on cover i ng over head door s and speci f y a maxi mum l eakage when such r at i ngs ar e avai l abl e.

25. Wher e l ouver ed smoke vent i l at i on openi ngs ar e used at t he t op of el evat or shaf t s, pr ovi de a mot or i zed damper whi ch i s spr ung nor mal l y open and hel d c l osed by t he damper act uat or . Connect t he act uat or t o t he f i r e al ar m syst em t o open t he damper upon a bui l di ng al ar m. Ref er t o I BC Chapt er 30 El evat or s and Conveyi ng Syst ems.

26. Pr ovi de t i ght seal i ng damper s and cont r ol s t o c l ose al l vent i l at i on or make- up ai r i nt akes and exhaust s dur i ng i nact i ve or unoccupi ed per i ods. I n t he HVAC and bui l di ng cont r ol s speci f i cat i on sect i ons, speci f y al l i nt ake, r el i ef , and exhaust damper s t o be AMCA 511 l eakage Cl ass 1A ( 15. 2 L/ s/ squar e met er @250 Pa( 3 CFM/ sq. f t . @ 1 i n. w. c) .

27. Of t en, t her e i s but one ai r bar r i er envel ope i n a bui l di ng and t hi s s i ngl e envel ope may encl ose t he ent i r e vol ume of t he bui l di ng or a por t i on of t he bui l di ng.

28. However , some bui l di ngs cal l f or mul t i pl e ai r bar r i er envel opes. An exampl e i s i n a vehi c l e mai nt enance f aci l i t y ; t he ai r condi t i oned admi ni st r at i ve of f i ce ar ea must have an ai r bar r i er envel ope syst em compl et e and separ at e f r om t he ai r bar r i er envel ope ser vi ng t he mai nt enance ar ea so t hat t he admi n ar ea ai r bar r i er syst em i s not nul l i f i ed dur i ng war m weat her when t he vehi c l e mai nt enance bay door s ar e open. The common wal l bet ween t he t wo ar eas i s a par t of t he ai r bar r i er envel ope f or bot h ar eas. Ther ef or e, t he common wal l must be t i ght l y const r uct ed and i ncl ude an ai r bar r i er mat er i al . Not e t hat , i n t hi s case, t he common wal l i s i ncl uded i n t he cal cul at i on of t he ai r bar r i er sur f ace ar ea.

29. Somet i mes t he ent i r e ai r bar r i er envel ope cannot be t est ed at once. An exampl e i s a bui l di ng wi t h mul t i pl e l i v i ng quar t er s separ at ed by f ul l hei ght par t i t i ons and wi t hout an i nt er i or cor r i dor . I f t her e i s no di scer nabl e ai r pat h connect i ng t he r ooms ( such as i nt er i or door ways or common cei l i ng pl enums) , t est i ng t he ent i r e bui l di ng ai r bar r i er envel ope i s pr ecl uded.

30. I n t hi s case, por t i ons of t he ai r bar r i er envel ope shoul d be t est ed. Sel ect ed r ooms must be ai r pr essur e t est ed t o det er mi ne t he l eakage t hr ough t he por t i on of t he ai r bar r i er envel ope shar ed by t he sel ect ed r ooms. On t he dr awi ngs, i dent i f y r epr esent at i ve r ooms at t he ext er i or cor ner s and r ooms not at bui l di ng cor ner s t o be t est ed, and i n t hi s speci f i cat i on, gi ve t he r oom number ai r bar r i er envel ope ar ea and l eakage r equi r ement s f or each r oom t o be t est ed. Not e t he ai r bar r i er envel ope sur f ace

SECTI ON 07 27 10 Page 8 ar ea i s onl y t hat por t i on of ai r bar r i er per i met er envel ope shar ed by t he r oom, i t i s not t he ent i r e r oom sur f ace ar ea. Test i ng i n t hi s s i t uat i on r equi r es pr essur i z i ng adj acent r ooms so t hat t her e i s no r oom- t o- r oom ai r l eakage. For a descr i pt i on of t he t est pr ocess, Ref er t o UFGS 01 91 19 BUI LDI NG ENCLOSURE COMMI SSI ONI NG par agr aph Pr essur e Test i ng a Mul t i pl e I sol at ed Zoned Bui l di ng. Wher e a number of r ooms have t he same di mensi ons, t he dr awi ngs shoul d i ndi cat e t hat t he t est r oom wi l l ei t her be t he r oom i ndi cat ed or a r oom of t he same si ze sel ect ed by t he Cont r act i ng Of f i cer .

31. On t he dr awi ngs, t he desi gner must i dent i f y t he envel opes t o be t est ed, usual l y by number . Ref er t o par agr aph AI R BARRI ER ENVELOPE SURFACE AREA AND

LEAKAGE REQUI REMENTS.

32. Cal cul at e t he ai r bar r i er envel ope sur f ace ar ea ( sq. m( sq. f t . ) f or each envel ope t o be t est ed. Thi s i s t he sur f ace ar ea of t he vol ume encl osed by each ai r bar r i er envel ope t o be t est ed ( i ncl udes f l oor s, wal l s, f enest r at i on, door s, and r oof ) . On t he dr awi ngs or i n t hi s speci f i cat i on, i ndi cat e t he sur f ace ar ea f or each ai r bar r i er envel ope t o be t est ed.

33. Two t est s can be per f or med f or t he bui l di ng envel ope; an " Ar chi t ect ur al Onl y Test " , and an " Ar chi t ect ur al Pl us HVAC Syst em Test " . The Ar chi t ect ur al Onl y Test cal cul at es t he l eaki ng t hr ough t he ar chi t ect ur al por t i ons of t he envel ope and al l ows some expedi ent seal i ng of many HVAC component s t o excl ude any l eakage t hr ough t hese i t ems f r om t est r esul t s.

The Ar chi t ect ur al Pl us HVAC Syst em cal cul at es t he l eakage f r om t he ent i r e bui l di ng i n a condi t i on i n whi ch t he HVAC syst em i s of f and al l ows no t empor ar y maski ng or seal i ng of mechani cal or HVAC component s such as damper s, f l ues and vent s. The Ar chi t ect ur al pl us HVAC Syst em t est shoul d be i ncl uded i n t he speci f i cat i ons of a Cont r act when t he bui l di ng i s desi gned such t hat t he HVAC syst em may oper at e i nt er mi t t ent l y and when damper s wi l l be used t o pr event ai r l eakage out of t he condi t i oned space t hr ough t he HVAC syst em. The Ar chi t ect ur al Pl us HVAC Syst em t est may be appl i ed t o r esi dent i al pr oj ect s wi t h i nt er mi t t ent HVAC syst em oper at i on or a pr oj ect i n whi ch t her e i s a need t o ver i f y mechani cal damper s i n t he HVAC syst em f or l eakage per f or mance.

34. I ndi cat e t he al l owabl e l eakage r at e of each ai r bar r i er envel ope ( ___ L/ s- m2( ___CFM/ sq. f t . @ 75 Pa) . Ref er t o UFC 3- 101- 01. Use t he UFC maxi mum al l owed val ues or l ess f or t he Ar chi t ect ur al Onl y Test .

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35. To t he Ar chi t ect ur al Onl y Test maxi mum l eakage r at e, add an al l owance f or t he HVAC syst em l eakage r at e. An ar bi t r ar y al l owance of 0. 25 L/ s- m2 0. 05 CFM/ sq. f t . i s suggest ed. Thi s hi gher l eakage r at e i s t he Ar chi t ect ur al Pl us HVAC Syst em Test maxi mum l eakage r at e. I n ot her wor ds, i f t he Ar chi t ect ur al Onl y Test al l owabl e l eakage r at e i s X, t he Ar chi t ect ur al Pl us HVAC Syst em Test al l owabl e l eakage r at e i s X + 0. 25 L/ s- m2 0. 05 CFM/ sq. f t .

Exampl e:

- Ar chi t ect ur al Onl y Test : 1. 27 L/ s- sq m 0. 25 CFM/ sq. f t . @ 75 Pa.

- Ar chi t ect ur al Pl us HVAC Syst em Test : 1. 5 L/ s- m2

0. 30 CFM/ sq. f t . @ 75 Pa.

36. Next , cal cul at e and i ndi cat e t he maxi mum t est l eakage i n L/ s ( CFM) f or each ai r bar r i er envel ope and f or each t ype t est .

37. Renovat i ons: Ref er t o UFC 3- 101- 01 f or r equi r ement s. Thi s speci f i cat i on i s used on r enovat i ons i f a maj or upgr ade t o t he bui l di ng envel ope i s i nvol ved. However , t he UFC of f er s gui dance on pr i or i t i z i ng t he seal i ng of exi st i ng bui l di ng envel opes based on f undi ng.

38. Addi t i ons: Wher e a new addi t i on shar es a wal l wi t h an exi st i ng bui l di ng, t he desi gner has t wo opt i ons:

a) put an ai r bar r i er assembl y i n t he common wal l and t r eat t he new addi t i on as a separ at e t est zone, or

b) i ndi cat e t hat door s and ot her openi ngs i n t he common wal l wi l l be t empor ar i l y seal ed dur i ng t he t est , and i dent i f y a por t i on of t he exi st i ng bui l di ng t hat can be cl osed and pr essur i zed wi t h separ at e pr essur i zat i on equi pment so t hat t her e i s no di f f er ent i al pr essur e acr oss t he common wal l dur i ng t he t est .

39. Speci al Desi gn Condi t i ons:

Humi di f i ed Rooms: A humi di f i ed space wi t hi n an unhumi di f i ed bui l di ng ( exampl e: comput er equi pment r oom) shoul d be l ocat ed as an i nt er i or r oom and not l ocat ed on t he bui l di ng per i met er envel ope.

Ot her wi se pay cl ose at t ent i on t o t he pot ent i al f or condensat i on wi t hi n t he per i met er envel ope dur i ng t i mes of col d weat her .

Removabl e Wal l or Roof Panel s f or Equi pment I nst al l at i on: Removabl e wal l and r oof panel s must mai nt ai n t he same weat her and ai r bar r i er qual i t i es as t he sur r oundi ng bui l di ng mat er i al s. Removabl e sect i ons must be det ai l ed i n a manner t o be abl e t o be r eseal ed t o t he same l evel as or i gi nal l y i nst al l ed.

SECTI ON 07 27 10 Page 10

Secur e Rooms and Shi el ded Faci l i t i es: Coor di nat e compat i bi l i t y of Secur e Room and Shi el di ng det ai l s wi t h t he ai r bar r i er det ai l s. I t i s r ecommended t o l ocat e such f aci l i t i es at i nt er i or bui l di ng l ocat i ons away f r om ext er i or wal l s or pr ovi de a separ at i on space bet ween t he pr ot ect ed f aci l i t y and t he ext er i or wal l . When usi ng t he Secur e Room or shi el ded wal l at ext er i or l ocat i ons, car e must be t aken t o mai nt ai n consi st ent wal l / cei l i ng t emper at ur e and pr oper vent i l at i on t o avoi d condensat i on and mol d pr obl ems. Shi el di ng mat er i al s must avoi d use of or gani c adhesi ves, seal ant s, or ot her mat er i al s whi ch pr omot e mol d gr owt h. When usi ng shi el ded assembl i es as par t of t he ext er i or bui l di ng shel l assembl y, i t i s r ecommended t o use WUFI anal ysi s t o det er mi ne pr oper assembl y of mat er i al s.

40. Copy and compl et e t he checkl i st bel ow and i ncl ude i t i n t he Ar chi t ect ur al Desi gn Anal ysi s.

AI R BARRI ER SYSTEM DESI GNER CHECKLI ST

Dr awi ngs:

___ 1. Ai r bar r i er syst em dr awi ngs ar e i ncl uded i n t he pl ans. ( Mor e t han one dr awi ng may be r equi r ed.

I t may be necessar y t o pr ovi de a pl an f or each f l oor . )

___ 2. A r educed si ze pl an and el evat i on v i ews of t he bui l di ng i ndi cat i ng t he desi r ed per i met er boundar y of each ai r bar r i er envel ope i s i ncl uded.

___ 3. The ai r bar r i er envel opes t o be t est ed ar e shown and gi ven a uni que number f or r ef er ence as appl i cabl e.

___ 4. Det ai l s showi ng how t he wal l ai r bar r i er assembl y i s j oi ned t o t he r oof ai r bar r i er assembl y ar e pr ovi ded.

___ 5. Det ai l s showi ng how t he wal l ai r bar r i er mat er i al i s j oi ned t o t he f l oor / f oundat i on ar e pr ovi ded.

___ 6. Det ai l s showi ng how t he wal l ai r bar r i er mat er i al i s j oi ned t o t he wi ndow component s ar e pr ovi ded.

___ 7. Det ai l s showi ng how t he wal l ai r bar r i er mat er i al i s j oi ned t o t he door component s ar e pr ovi ded.

___ 8. Det ai l s ar e pr ovi ded showi ng t he ai r bar r i er syst em at expansi on and i sol at i on j oi nt s as appl i cabl e.

___ 9. Det ai l s ar e pr ovi ded showi ng t he met hod of

SECTI ON 07 27 10 Page 11 seal i ng penet r at i ons of t he ai r bar r i er envel ope at t he wal l , r oof , or f l oor by condui t , pi pi ng, and cabl es.

___ 10. Det ai l s showi ng how t he ai r bar r i er mat er i al s ar e r out ed ar ound wal l and r oof di scont i nui t i es ar e pr ovi ded ( such as sof f i t s, over hangs, of f set s, vest i bul es, gabl es, r i dges, and eaves) .

___ 11. I n t he wal l and r oof sect i ons, mat er i al s and accessor i es t hat const i t ut e t he ai r bar r i er syst em ar e c l ear l y i dent i f i ed. Exampl es: boar d mat er i al s, l i qui d appl i ed coat i ngs, spr ay appl i ed f oams, t ape, cal ks, seal ant s.

___ 12. I n t he wal l and r oof sect i ons, component s and assembl i es t hat const i t ut e t he ai r bar r i er syst em ar e c l ear l y i dent i f i ed. Exampl es:

wi ndows, door s, skyl i ght s.

Not e: The f ol l owi ng ar e exampl es f or ai r bar r i er mat er i al s:

- Cast - i n- pl ace concr et e

- Gl ass

- Met al

- Spr ay pol yur et hane f oam

- Spr ay pol yet hyl ene f oam

- Ext r uded pol yst yr ene

- Low per meance bui l di ng wr ap pr oduct s.

- Li qui d appl i ed one- and t wo- component mat er i al s

Not e: The f ol l owi ng cannot ser ve as ai r bar r i er mat er i al s:

- Concr et e bl ock

- Expanded pol yst yr ene f oam

- Bui l di ng paper / f el t s

- Open cel l f oam

- Hi gh per meance house wr aps

- Per l i t e boar d

- Fi ber boar d

- Un- t r eat ed sheat hi ng

- Gl ass f i ber r i gi d boar d

- Cel l ul ose i nsul at i on

- Met al r oof decki ng

- St andi ng seam r oof

Speci f i cat i ons:

___ 13. Ai r bar r i er membr anes and t hei r ai r per meance and wat er vapor per meance ar e speci f i ed i n ot her speci f i cat i on sect i ons. Exampl es:

Mechani cal l y f ast ened sheet f i l ms, f l ui d- appl i ed membr anes, sel f - adher i ng membr anes, spr ay- appl i ed f oams.

SECTI ON 07 27 10 Page 12

Ai r bar r i er mat er i al s have a maxi mum ai r per meance of 0. 02 L/ s- m2 0. 004 CFM/ sq. f t . of sur f ace ar ea at a pr essur e di f f er ence of 75 Pa. Fi l ms, membr anes, and coat i ngs i nt ended as ai r bar r i er component s must meet t hi s r at i ng when t est ed i n accor dance wi t h

ASTM E 2178.

___ 14. The al l owabl e l eakage r equi r ement s of wi ndow, cur t ai n wal l , and door component s i s speci f i ed i n ot her speci f i cat i on sect i ons.

___ 15. The al l owabl e l eakage r equi r ement s of HVAC i nt ake and exhaust damper s i s speci f i ed i n ot her speci f i cat i on sect i ons.

Cal cul at i ons:

___ 16. The sur f ace ar ea ( sq. m( sq. f t . ) of each ai r bar r i er envel ope t o be t est ed has been cal cul at ed.

___ 17. The maxi mum al l owabl e l eakage ( L/ s( CFM) f or bot h t he Ar chi t ect ur al Onl y Test and t he Ar chi t ect ur al Pl us HVAC Syst em Test has been cal cul at ed and shown f or each ai r bar r i er envel ope t o be t est ed.

___ 18. Moi st ur e mi gr at i on and dewpoi nt cal cul at i ons have been per f or med. WUFI sof t war e avai l abl e f r om Oak Ri dge Nat i onal Labor at or y or s i mi l ar moi st ur e mi gr at i on anal ysi s sof t war e i s r ecommended.

Not e: Ai r bar r i er mat er i al s wi l l have l ow ai r per meance by def i ni t i on. However , bewar e of t he vapor per meance of ai r bar r i er membr anes. For exampl e, i f t he ai r bar r i er mat er i al has a l ow vapor per meance, i t may act as an ef f ect i ve vapor r et ar der . Wi t h t hi s i n mi nd, t he l ocat i on of t he membr ane wi t hi n t he wal l or r oof r el at i ve t o t he t her mal i nsul at i on becomes i mpor t ant . Be sur e t hat t he vapor per meance and l ocat i on has been consi der ed by t he desi gn. Per f or m vapor t r ansmi ssi on cal cul at i ons or dew poi nt cal cul at i ons as r equi r ed t o assur e t hat moi st ur e condensat i on wi t hi n t he bui l di ng envel ope wi l l not occur .

HVAC Not e: The HVAC desi gner shoul d coor di nat e wi t h t he ar chi t ect ur al desi gner r egar di ng t he i ndoor t emper at ur e and humi di t y condi t i ons and t he si mul t aneousl y occur r i ng out door ai r condi t i ons.

Wi t h t hi s i nf or mat i on t he ar chi t ect ur al desi gner can det er mi ne t he envel ope component conf i gur at i on conduci ve t o mai nt ai ni ng a dr y t her mal envel ope.

( End Desi gner Checkl i st )

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

SECTI ON 07 27 10 Page 13 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. [

NOTE: Ref er t o UFC 3- 101- 01 t o det er mi ne when t est i ng i s r equi r ed. I f t est i ng i s r equi r ed, r et ai n t he br acket ed par agr aph bel ow and i ncl ude t he r ef er enced t est i ng speci f i cat i on sect i on i n t he const r uct i on document s.

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 01 91 19 BUI LDI NG ENCLOSURE COMMI SSI ONI NG. ]

1. 2 REFERENCES

NOTE: Thi s par agr aph i s used t o l i s t t he publ i cat i ons c i t ed i n t he t ext of t he gui de speci f i cat i on. The publ i cat i ons ar e r ef er r ed t o i n t he t ext by basi c desi gnat i on onl y and l i s t ed i n t hi s par agr aph by or gani zat i on, desi gnat i on, dat e, and t i t l e.

Use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e when you add a Ref er ence I dent i f i er ( RI D) out si de of t he Sect i on' s Ref er ence Ar t i c l e t o aut omat i cal l y pl ace t he r ef er ence i n t he Ref er ence Ar t i c l e. Al so use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e t o updat e t he i ssue dat es.

Ref er ences not used i n t he t ext wi l l aut omat i cal l y be del et ed f r om t hi s sect i on of t he pr oj ect speci f i cat i on when you choose t o r econci l e r ef er ences i n t he publ i sh pr i nt pr ocess.

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 ( 2022) St andar d Test Met hod f or Pul l - Of f St r engt h of Coat i ngs Usi ng Por t abl e Adhesi on Test er s

ASTM E96/ E96M ( 2024) St andar d Test Met hods f or

SECTI ON 07 27 10 Page 14

Gr avi met r i c Det er mi nat i on of Wat er Vapor Tr ansmi ssi on Rat e of Mat er i al s

ASTM E2178 ( 2021a) St andar d Test Met hod f or Det er mi ni ng Ai r Leakage Rat e and Cal cul at i on of Ai r Per meance of Bui l di ng Mat er i al s

ASTM E2357 ( 2018) St andar d Test Met hod f or Det er mi ni ng Ai r Leakage Rat e of Ai r Bar r i er Assembl i es

NATI ONAL FI RE PROTECTI ON ASSOCI ATI ON ( NFPA)

NFPA 285 ( 2023) St andar d Fi r e Test Met hod f or Eval uat i on of Fi r e Pr opagat i on Char act er i st i cs of Ext er i or Wal l Assembl i es Cont ai ni ng Combust i bl e Component s

1. 3 DEFI NI TI ONS

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 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 separ at or .

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 vi 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, t est ed or pr oduced 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 of a bui l di ng encl osur e.

SECTI ON 07 27 10 Page 15

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 ( L/ sCFM) dr i ven t hr ough a uni t sur f ace ar ea ( sq. m

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: 1. 27 L/ s- m20. 25 CFM/ sq. f t . @ 75 Pa)

1. 3. 8 Ai r Leakage

The t ot al ai r f l ow ( L/ sCFM) 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:

3070 L/ s 6500 CFM @ 75 Pa)

1. 3. 9 Ai r Per meance

The t est ed r at e of ai r f l ow ( L/ sCFM) t hr ough a uni t ar ea ( sq. msq. 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. 02 L/ s- m2 0. 004 CFM/ sq. f t . @ 75 Pa) as est abl i shed by

ASTM E2178.

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. 3. 11 Vapor Per meance

Vapor per meance i s separ at ed i nt o t hr ee cl asses based on t he wat er vapor per meance of a mat er i al as t est ed vi a ASTM E96/ E96M

Cl ass I Vapor Bar r i er / Ret ar der 0. 1 per m or l ess

Cl ass I I Vapor Bar r i er / Ret ar der 0. 1 per m t o 1. 0 per m

Cl ass I I I Vapor Bar r i er / Ret ar der 1. 0 per m t o 10 per m

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 sub- cont 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 sub- cont r act or begi ns and ends, t he sequence of i nst al l at i on, and each sub- cont 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 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 sub- cont r act or s.

1. 5 SUBMI TTALS

NOTE: Revi ew submi t t al descr i pt i on ( SD) def i ni t i ons i n Sect i on 01 33 00 SUBMI TTAL PROCEDURES and edi t t he f ol l owi ng l i s t , and cor r espondi ng submi t t al

SECTI ON 07 27 10 Page 16 i t ems i n t he t ext , t o r ef l ect onl y t he submi t t al s r equi r ed f or t he pr oj ect . The Gui de Speci f i cat i on t echni cal edi t or s have cl assi f i ed t hose i t ems t hat r equi r e Gover nment appr oval , due t o t hei r compl exi t y or cr i t i cal i t y, wi t h a " G. " Gener al l y, ot her submi t t al i t ems can be r evi ewed by t he Cont r act or ' s Qual i t y Cont r ol Syst em. Onl y add a “ G” t o an i t em, i f t he submi t t al i s suf f i c i ent l y i mpor t ant or compl ex i n cont ext of t he pr oj ect .

For Ar my pr oj ect s, f i l l i n t he empt y br acket s f ol l owi ng t he " G" c l assi f i cat i on, wi t h a code of up t o t hr ee char act er s t o i ndi cat e t he appr ovi ng aut hor i t y. Codes f or Ar my pr oj ect s usi ng t he Resi dent Management Syst em ( RMS) ar e: " AE" f or Ar chi t ect - Engi neer ; " DO" f or Di st r i ct Of f i ce ( Engi neer i ng Di v i s i on or ot her or gani zat i on i n t he Di st r i ct Of f i ce) ; " AO" f or Ar ea Of f i ce; " RO" f or Resi dent Of f i ce; and " PO" f or Pr oj ect Of f i ce. Codes f ol l owi ng t he " G" t ypi cal l y ar e not used f or Navy and Ai r For ce pr oj ect s.

The " S" c l assi f i cat i on i ndi cat es submi t t al s r equi r ed as pr oof of compl i ance f or sust ai nabi l i t y Gui di ng Pr i nci pl es Val i dat i on or Thi r d Par t y Cer t i f i cat i on and as descr i bed i n Sect i on 01 33 00 SUBMI TTAL

PROCEDURES.

Choose t he f i r st br acket ed i t em f or Navy and Ai r For ce pr oj ect s, or choose t he second br acket ed i t em f or Ar my pr oj ect s.

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" or " S" c l assi f i cat i on. Submi t t al s not havi ng a " G" or " S" c l assi f i cat i on ar e [ f or Cont r act or Qual i t y Cont r ol appr oval . ] [ f or i nf or mat i on onl y. When used, a code f ol l owi ng t he " G" c l assi f i cat 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- 02 Shop Dr awi ngs

Ai r Bar r i er Syst em Shop Dr awi ngs; G[ , [ _____] ] , Manuf act ur er pr oduced war r ant ed ai r bar r i er syst em

SD- 03 Pr oduct Dat a

Ai r Bar r i er Syst em Pr oduct Dat a; G[ , [ _____] ]

SD- 04 Sampl es

NOTE: Ref er t o UFC 3- 101- 01 f or gui dance on i mpl ement i ng mock- ups.

Mock- Up; G[ , [ _____] ]

SECTI ON 07 27 10 Page 17

Mat er i al Sampl es For Ai r Bar r i er Syst em; G[ , [ _____] ]

SD- 05 Desi gn Dat a

Desi gn Dat a And Cal cul at i ons For The Ai r Bar r i er Syst em; G[ , SD- 06 Test Repor t s

Desi gn Revi ew Repor t ; G[ , [ _____] ]

Test i ng and I nspect i on; G[ , [ _____] ]

SD- 07 Cer t i f i cat es

NOTE: I ncl ude submi t t al s f or Ai r Bar r i er I nspect or Qual i f i cat i ons and f or a Desi gn Revi ew Repor t whenever UFC 3- 101- 01 r equi r es t he ai r bar r i er syst em t o be t est ed.

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

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

NOTE: I ncl ude t hi s par agr aph def i ni ng t he ai r bar r i er l eakage r equi r ement s whenever UFC 3- 101- 01 r equi r es t he ai r bar r i er t o be t est ed. I f pr essur e t est i ng of t he ai r bar r i er syst em i s not r equi r ed, del et e t hi s par agr aph. I f pr essur e t est i ng i s r equi r ed, on t he dr awi ngs, i dent i f y t he ai r bar r i er envel opes t o be t est ed. Pr ovi de t he ar ea and l eakage i nf or mat i on f or each si x- s i ded ai r bar r i er envel ope t o be t est ed bel ow. Opt i onal l y, i ncl ude a t abl e on t he dr awi ngs summar i z i ng t he envel ope i nf or mat i on. I f t hat i s t he appr oach, s i mpl y r ef er t o t he dr awi ngs at t hi s poi nt i n t he speci f i cat i on and del et e t he envel ope ar ea and l eakage i nf or mat i on bel ow.

I f onl y a por t i on of t he ai r bar r i er envel ope i s bei ng t est ed as i n t he case of t he bar r acks bui l di ng descr i bed i n t he openi ng not es above, i ndi cat e t he t est r ooms; f or exampl e, change " Ai r Bar r i er Envel ope 1" , t o " Room 214" . For a descr i pt i on of t he t est pr ocess, Ref er t o UFGS 01 91 19 BUI LDI NG ENCLOSURE COMMI SSI ONI NG par agr aph Pr essur e Test i ng a Mul t i pl e I sol at ed Zoned Bui l di ng. I f an Ai r Bar r i er Envel ope i s an i sol at ed zone wi t hi n t he l ar ger bui l di ng ( e. g. , s i ngl e r oom i n a bar r acks) , and i f i t i s i mpossi bl e t o t est t hat i sol at ed zone wi t hout seal i ng t he HVAC duct s t hat i nt er connect adj acent r ooms, per f or m t he Ar chi t ect ur al Onl y t est and del et e t he Ar chi t ect ur al Pl us HVAC Syst em t est f or t hat par t i cul ar Ai r Bar r i er Envel ope.

The bui l di ng ai r bar r i er syst ems must meet t he f ol l owi ng l eakage

SECTI ON 07 27 10 Page 18 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.

NOTE: Add or del et e ai r bar r i er envel opes t o be t est ed as r equi r ed.

NOTE: Edi t t he Al l owabl e ai r l eakage r at es as r equi r ed by UFC 3- 101- 01 Ar chi t ect ur e. A l eakage val ue l ess t han 0. 25 CFM/ SQFT f or DoD f aci l i t i es i s r ecommended on pr oj ect s wher e desi gn and const r uct i on t eams have exper i ence i n at t ai ni ng l ower r at es of l eakage t o i ncr ease ener gy r educt i on, on pr oj ect s wi t h speci f i c mi ssi on/ f unct i onal r equi r ement s, or on bui l di ng const r uct i on t ypes ( e. g. , pr e- cast concr et e panel s and i nsul at ed concr et e f or ms) wher e l ow al l owabl e l eakage val ues ar e easi l y at t ai ned. Addi t i onal l y, t he l eakage r at e can be set t o any l eakage val ue l ess t han 0. 25 CFM/ SQFT f or DoD f aci l i t i es i f r equi r ed t o meet pr oj ect speci f i c ener gy t ar get s. Thi s shoul d be cor r el at ed back t o t he ener gy model f or val i dat i on.

Ai r Bar r i er Envel ope 1

Sur f ace Ar ea [ _____] squar e met er squar e f eet

Ar chi t ect ur al Onl y Test :

Al l owabl e l eakage r at e [ 1. 27] [ _____] L/ s per squar e met er [ 0. 25] [ _____] CFM/ sq. f t

Maxi mum l eakage [ _____] t ot al L/ s CFM

[ Ar chi t ect ur al Pl us HVAC Syst em Test : ]

[ Al l owabl e l eakage r at e] [ [ 1. 52] [ _____] L/ s per squar e met er [ 0. 30] [ _____] CFM/ sq. f t ]

[ Maxi mum l eakage] [ [ _____] t ot al L/ s CFM]

Ai r Bar r i er Envel ope 2

Sur f ace Ar ea [ _____] squar e met er squar e f eet

Ar chi t ect ur al Onl y Test :

Al l owabl e l eakage r at e [ 1. 27] [ _____] L/ s per squar e met er [ 0. 25] [ _____] CFM/ sq. f t

Maxi mum l eakage [ _____] t ot al L/ s CFM

SECTI ON 07 27 10 Page 19

[ Ar chi t ect ur al Pl us HVAC Syst em Test : ]

[ Al l owabl e l eakage r at e] [ [ 1. 52] [ _____] L/ s per squar e met er [ 0. 30] [ _____] CFM/ sq. f t ]

[ Maxi mum l eakage] [ [ _____] t ot al L/ s CFM]

Ai r Bar r i er Envel ope 3

Sur f ace Ar ea [ _____] squar e met er squar e f eet

Ar chi t ect ur al Onl y Test :

Al l owabl e l eakage r at e [ 1. 27] [ _____] L/ s per squar e met er [ 0. 25] [ _____] CFM/ sq. f t

Maxi mum l eakage [ _____] t ot al L/ s CFM

[ Ar chi t ect ur al Pl us HVAC Syst em Test : ]

[ Al l owabl e l eakage r at e] [ [ 1. 52] [ _____] L/ s per squar e met er [ 0. 30] [ _____] CFM/ sq. f t ]

[ Maxi mum l eakage] [ [ _____] t ot al L/ s CFM]

] [ 1. 7 AI R BARRI ER I NSPECTOR

NOTE: I ncl ude t he r equi r ement f or an AI R BARRI ER I NSPECTOR whenever UFC 3- 101- 01 r equi r es t he ai r bar r i er t o be t est ed.

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 i nst al l at i on r equi r ement s ar e met , and ver i f i es t hat t he const r uct ed wor k i s i n accor dance wi t h bot h t he manuf act ur er ' s r ecommendat i ons f or pr oduct s used, t he cont ent of t hi s speci f i cat i on and ot her Cont r act dr awi ngs or document s. Qual i f i cat i ons 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 Audi t or 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 associ at i on.

b. Or , pr ovi de document at i on i n r esume f or mat t hat demonst r at es t hat t he i ndi v i dual pr oposed has t he exper i ence, knowl edge, ski l l s and abi l i t i es t o f ul f i l l t he above st at ed dut i es as t he ai r bar r i er i nspect or .

c. I t i s accept abl e t hat t hi s i ndi v i dual be empl oyed by t he f i r m per f or mi ng t he bui l di ng pr essur i zat i on t est or anot her i ndependent t hi r d- par t y ent i t y, pr ovi ded t hey meet t he above r equi r ement s but must not be a member of t he i nst al l i ng Cont r act or or f i r m.

SECTI ON 07 27 10 Page 20

Pr ovi de copi es of Ai r Bar r i er I nspect or qual i f i cat i ons 30 days af t er Not i ce t o Pr oceed.

] [ 1. 8 DESI GN REVI EW

NOTE: I ncl ude t he r equi r ement f or a DESI GN REVI EW whenever UFC 3- 101- 01 r equi r es t he ai r bar r i er t o be t est ed.

Thi s Desi gn Revi ew i s concept ual l y s i mi l ar t o t he Desi gn Revi ew Repor t r equi r ed by t he TESTI NG, ADJUSTI NG, AND BALANCI NG FOR HVAC speci f i cat i on wher e t he TAB speci al i st r evi ews t he pl ans and specs and submi t s a r epor t ei t her i ndi cat i ng t hat t he syst em can be bal anced or descr i bi ng def i c i enci es t hat pr ecl ude t he TAB t eam f r om accompl i shi ng t hei r wor k and descr i bi ng necessar y changes. Si mi l ar l y, wi t h t he ai r bar r i er syst em Desi gn Revi ew, t he Cont r act or i s asked t o r evi ew t he desi gn and poi nt out any def i c i enci es t hat pr event a successf ul ai r bar r i er syst em i nst al l at i on.

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 a pr oper ai r bar r i er syst em. Pr ovi de copi es of t he Desi gn Revi ew Repor t 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. Submi t desi gn dat a and cal cul at i ons f or t he Ai r Bar r i er Syst em f or a manuf act ur er pr oduced and war r ant ed ai r bar r i er syst em.

] PART 2 PRODUCTS

NOTE: Ai r bar r i er membr anes and t hei r ai r per meance and wat er vapor per meance ar e speci f i ed i n ot her speci f i cat i on sect i ons. Add speci f i cat i on sect i ons as r equi r ed. Exampl es: Sel f - adher ed sheet s, f l ui d- appl i ed membr anes, spr ay f oams, boar dst ock ai r bar r i er mat er i al s, mechani cal l y at t ached f l exi bl e sheet mat er i al s. The ABAA websi t e i s one sour ce of ai r bar r i er mat er i al speci f i cat i ons. I ndi cat e al l per t i nent mat er i al pr oper t i es i ncl udi ng ai r per meance, wat er vapor per meance, adhesi on r equi r ement s, and f l ame and smoke spr ead r equi r ement s. Al so, i ndi cat e t hat t he manuf act ur er ' s i nst r uct i ons f or t he st or age, i nst al l at i on, and appl i cat i on of ai r bar r i er pr oduct s must be f ol l owed.

Ai r bar r i er mat er i al s have a maxi mum ai r per meance of

0. 02 L/ s- m2 0. 004 CFM/ sq. f t . of sur f ace ar ea at a pr essur e di f f er ence of 75 Pa. Fi l ms, membr anes, and coat i ngs i nt ended as ai r bar r i er component s must meet t hi s r at i ng when t est ed i n accor dance wi t h…