ASHRAE 90.1-2013 BUILDING ENVELOPE-EXPLAINED

7/24/2019 ASHRAE 90.1-2013 BUILDING ENVELOPE-EXPLAINED

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BUILDING ENERGY CODES www.energycodes.gov

1

BUILDING ENERGY CODES

ANSI/ASHRAE/IES

Standard 90.1-2013 Envelope

June 2014 PNN-SA-102!10


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2

MandatoryMandatory

ProvisionsProvisions

(required for most

compliance options)

Building SystemBuilding System Compliance OptionsCompliance Options

Energy CodeEnergy CodeComplianceCompliance

PrescriptivePrescriptive

OptionOption

Energy CostEnergy Cost

BudgetBudget

Trade OffTrade Off

OptionOption

SimplifiedSimplified

Envelope

!"C

#ig$ting

S%

Power

Ot$er

Compliance "pproac$es


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3

MandatoryMandatory


(required for most

compliance options)


Energy CodeEnergy CodeComplianceCompliance


OptionOption


BudgetBudget

Trade OffTrade Off

OptionOption


Envelope

!"C

#ig$ting

S%

Power

Ot$er

Compliance "pproac$"u#ld#n$ Envelope


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4

%eneral (Section 5.1)&S'ope&Spa'e-(ond#t#on#n$ (ate$or#e)&Envelope Alterat#on)&(l#*ate

(o*pl#an'e Pat+) (Section 5.2)

S#*pl#,#ed "u#ld#n$ (Section 5.3)Not Used

andator Prov#)#on) (Section 5.4)&In)ulat#on

&ene)trat#on and oor)&A#r eaa$e

Section &"u#ld#n$ Envelope verv#e


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5

Pre)'r#pt#ve "u#ld#n$ Envelope pt#on (Section 5.5)&paue Area)&ene)trat#on

"u#ld#n$ Envelope 5rade-,, pt#on (Section 5.6)

Su6*#ttal) (Section 5.7)

Produ't In,or*at#on and In)tallat#on Reu#re*ent) (Section 5.8)

Section &"u#ld#n$ Envelope verv#e (contd)


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6

Separate envelope 'o*ponentreu#re*ent) appl to t+ree tpe) o,'ond#t#oned )pa'e)&Nonre)#dent#al

&Re)#dent#al

&Se*#+eated

Re)#dent#al )pa'e) are u)ed ,or dell#n$

Se*#+eated )pa'e) are +eated7 6ut not to

'o*,ort level)7 and not 'ooled

#$ure 8-A

Ea*ple) o, Ind#re'tl (ond#t#oned Spa'e)(Users Manual 9.1.!213)

Section & ' &..Spa'e-(ond#t#on#n$ (ate$or#e)


7/72 BUILDING ENERGY CODES www.energycodes.gov

7

Section &"u#ld#n$ Envelope



8

Envelope Reu#re*ent) Are Spe'#,#ed 6 Spa'e-(ond#t#on#n$

(ate$or#e)

&(ond#t#oned )pa'e *u)t 6e

& a 'ooled )pa'e #t+ a 'ool#n$ ))te* )en)#6le 'ool#n$ output

'apa'#t lar$er t+an 8 "tu/+ft2

& a +eated )pa'e #t+ a +eat#n$ ))te* output 'apa'#t lar$ert+an t+at )pe'#,#ed #n ta6le 6elo

& r7 an #nd#re'tl 'ond#t#oned )pa'e

Section & ' &..Spa'e (ond#t#on#n$ (ate$or#e) : "a)#)

eating Output* Btu+$,ft Climate -one

8 1 and 210 3

18 4 and 8

20 ; and #n$ #n

e#)t#n$ )a)+ and ,ra*e

Alterat#on) to envelope 'av#t#e)

prov#ded t+e are #n)ulated to

,ull dept+ #t+ a no*#nal R-3.0

per #n.

?all and ,loor alterat#on) +ere

no ne 'av#t#e) are 'reated

Roo, re'over#n$

Re*oval andrepla'e*ent o,

roo, *e*6rane)

Repla'e*ent o, e#)t#n$ door)

Repla'e*ent o, e#)t#n$

,ene)trat#on7 prov#ded area o,

repla'e*ent #) no *ore t+an

28@ o, total ,ene)trat#on area

Section &Envelope Alterat#on E'ept#on)



11

one) 6a)ed on )everal 'l#*at#' para*eter)

&o'at#on) l#)ted #n Append# " on 'ount-6-'ount 6a)#) ,orBn#ted State)

Section & ' &..0(l#*ate



12

Bn#ted State) o'at#on) Snap)+ot o, 5a6le "-1 #n Append# "

3A "lount 3A ar#on

Section & ' &..0(l#*ate



13

MandatoryMandatoryProvisionsProvisions

(required for most

compliance

options)


Ener$ (odeEner$ (ode(o*pl#an'e(o*pl#an'e


OptionOption


BudgetBudget

Trade OffTrade Off

OptionOption


Envelope

!"C

#ig$ting

S%

Power

Ot$er

Compliance "pproac$"u#ld#n$ Envelope



14

In)ulat#on (Section 5.4.1 re"ers to 5.8.1.1 t#rou$# 5.8.1.1)

a6el#n$ (Section 5.8.1.1)

Su6)tant#al (onta't (Section 5.8.1.5)

Re'e))ed Eu#p*ent (Section 5.8.1.6)

In)ulat#on Prote't#on (Section 5.8.1.7)

In)ulat#on A6ove Su)pended (e#l#n$) (Section 5.8.1.8)

Jo#nt) #n R#$#d In)ulat#on (Section 5.8.1.1)

Section & ' &.0andator Prov#)#on)



15

ene)trat#on and oor) (Section 5.4.2 t#at re"ers to 5.8.2)

A#r eaa$e (Section 5.4.3)

Section & ' &.0andator Prov#)#on)

Photo courtesy of Ken Baker, K energy



16

& (ont#nuou) a#r 6arr#er& ene)trat#on and door)& oad#n$ do' eat+er

)eal)& Ce)t#6ule)

Section & ' &.0.1A#r eaa$e



17

& (ont#nuou) a#r 6arr#er reu#red e'ept #nD

Se*#+eated )pa'e) #n 'l#*ate >one) 1-;

S#n$le t+e 'on'rete *a)onr 6u#ld#n$) #n

'l#*ate >one 2"

& Plan)

A#r 6arr#er 'o*ponent) #dent#,#ed or noted #n 'on)tru't#on

do'u*ent)

Jo#nt)7 #nter)e't#on)7 and penetrat#on) o, a#r 6arr#er 'o*ponent)

#n'l. l#$+t#n$ ,#ture)F deta#led

& 5o etend over all )ur,a'e) o, 6u#ld#n$ envelope At loe)t ,loor7 eter#or all)7 and 'e#l#n$ or roo,

& e)#$ned to re)#)t po)#t#ve and ne$at#ve pre))ure)

?#nd7 )ta' e,,e't7 and *e'+an#'al vent#lat#on

Section & ' &.0.1.A#r eaa$e (ont#nuou) A#r "arr#er



18

5+e ,ollo#n$ area) are to 6e rapped7 )ealed7

'auled7 $a)eted7 or taped

&Jo#nt) around ,ene)trat#on and door ,ra*e)6ot+ *anu,a'tured and )#te-6u#ltF

&Jun't#on) 6eteen all)And ,oundat#on)

At 6u#ld#n$ 'orner)And roo,) or 'e#l#n$)

&Penetrat#on) ,or roo,)7 all)7 and ,loor)

&"u#ld#n$ a))e*6l#e) u)ed a) du't) or plenu*)

&Jo#nt)7 )ea*)7 'onne't#on) 6eteen plane)7 and

ot+er '+an$e) #n a#r 6arr#er *ater#al)

Section & ' &.0.1..A#r eaa$e A#r "arr#er In)tallat#on

S ti & & 0 1 1



19

ater#al) #t+ a#r per*ean'e G 0.004 ',*/,t2under pre))ure d#,,erent#al o, 0.3

#n. H2te)ted #n a''ordan'e #t+ AS5 E 21

Section & ' &.0.1..1A#r eaa$e A''epta6le A#r "arr#er ater#al) andA))e*6l#e)

Material 2$ic3ness(minimum)

Plood 3/! #n.

r#ented )trand 6oard 3/! #n.

Etruded pol)trene #n)ulat#on 6oard #n.

o#l-,a'ed uret+ane #n)ulat#on 6oard #n.

Eter#or $p)u* )+eat+#n$ or #nter#or $p)u* 6oard #n.

(e*ent 6oard #n.

"u#lt up roo,#n$ *e*6rane

od#,#ed 6#tu*#nou) roo, *e*6rane

ull ad+ered )#n$le-pl roo, *e*6rane

A Portland 'e*ent/)and par$e7 )tu''o7 or $p)u* pla)ter #n.

(a)t-#n-pla'e and pre'a)t 'on'rete

S+eet *etal

(lo)ed 'ell 2 l6/,t3no*#nal den)#t )pra poluret+ane ,oa* 1 #n.

S ti & & 0 1 1



20

O4

A))e*6l#e) o, *ater#al) and 'o*ponent) )ealant)7 tape)7 et'.F #t+avera$e a#r leaa$e G 0.04 ',*/,t2under pre))ure d#,,erent#al o, 0.3 #n.H2te)ted #n a''ordan'e #t+ AS5 E 238



21

E5ceptions

Section & ' &.0.1.A#r eaa$e ene)trat#on and oor)

Product cfm+ft Procedure psf

%la>ed )#n$#n$ entran'e door) andrevolv#n$ door)

1.0 AAA/?A/(SA 101/I.S.2/A4407 NR(4007 or AS5 E2!3

1.8#n$ 0.0; NR( 400 or AS5 E2!3 1.8one and )pa'e 'ond#t#on#n$ 'ate$or 5a6le) 8.8-1

t+rou$+ 8.8-!F&In)ulat#on level) ,or roo,)7 all)7 ,loor) and door)&ene)trat#on 'r#ter#a ,or #ndo)7 $la>ed door) and )l#$+t)

Section & ' &.&Pre)'r#pt#ve "u#ld#n$ Envelope pt#on

S ti & & & 1


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(o*pl#an'eeet or e'eed *#n#*u* R-value) #n ta6le

nl R-value o, #n)ulat#on7 not to #n'lude a#r ,#l*)7 et'.

O4

eet *a#*u* B-,a'tor7 (-,a'tor7 or -,a'tor ,or t+e ent#re a))e*6l

tp#'al 'on)tru't#on a))e*6l#e) de)'r#6ed #n Append# AFO4

Per,or* area-e#$+ted avera$e B-,a'tor7 (-,a'tor7 or -,a'tor

nl #, t+ere are *ult#ple a))e*6l#e) #t+#n a )#n$le 'la)) o,

'on)tru't#on ,or a )#n$le )pa'e-'ond#t#on#n$ 'ate$or

Section & ' &.&.1paue Area)

S ti & & &


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Section & ' &.&.paue

2"B#E &.&6 Building Envelope 4equirements 7or Climate -one ("* B* C)8

Reference Table 5.5-1 on page 27 in !.1-2!1"

Opaque Elements

9onresidential 4esidential Semi$eated

"ssem/lyMa5imum

:nsulationMin. 46!alue

"ssem/lyMa5imum

:nsulationMin. 46!alue

"ssem/lyMa5imum

:nsulationMin. 46

!alue

4oofsIn)ulat#on Ent#rel a6ove e'

etal "u#ld#n$Att#' and t+er

B-0.04!B-0.041B-0.02ontall

to a *#n#*u* d#)tan'e )pe'#,#ed

Section & ' &.&.1.;


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52

paue oor)

B-,a'tor not $reater t+an )pe'#,#ed ,or 'l#*ate >one #n appropr#ate ta6le

Opaque Doors S#n$#n$ B-0.800 B-0.800 B-0.


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(r#ter#a appl to ,ene)trat#on7 #n'lud#n$ #ndo)7 $la)) door)7 $la))

6lo'7 pla)t#' panel)7 and )l#$+t)&)pe'#,#ed 6 ,ene)trat#on tpe7 )pa'e 'ond#t#on#n$ 'ate$or and 6'l#*ate >one

(o*pl#an'e #t+ value) #n 5a6le) 8.8-1 t+rou$+ 8.8-!

& B-,a'tor not $reater t+an )pe'#,#ed& SH%( not $reater t+an )pe'#,#ed

& eet or e'eed *#n#*u* C5/SH%(

& B)e NR( rat#n$) or de,ault value) #nAppend# A

& Area e#$+t#n$ alloed #t+#n )a*e 'la)) o, 'on)tru't#on and )pa'e 'ond#t#on#n$ 'ate$or

ene)trat#on

Section & ' &.&.0.


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ene)trat#on Area

5otal vert#'al ,ene)trat#on area to 6e )*aller t+an )pe'#,#ed

value) #n 5a6le) 8.8-1 t+rou$+ 8.8-! 40@ ,or all 'l#*ate>one)F

& In'lud#n$ 6ot+ ,#ed and opera6le vert#'al ,ene)trat#on

& E'ept#onD )treet-level vert#'al ,ene)trat#on 8.8.4.4.1F

5otal )l#$+t area )*aller t+an )pe'#,#ed #n 5a6le) 8.8-1

t+rou$+ 8.8-! 3@o, roo, area ,or all 'l#*ate >one)F& Per*#tted to 6e no $reater t+an ;@ o, roo, area prov#ded 'r#ter#a #n

e'ept#on 1 to )l#$+t SH%( reu#re*ent) are *et 8.8.4.4.2F and dal#$+t

area under )l#$+t) #) *ore t+an or eual to +al, t+e ,loor area o, t+e)pa'e

Section & ' &.&.0..1


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#n#*u* Sl#$+t ene)trat#on Area

#n#*u* )l#$+t area *u)t 6e prov#ded #n en'lo)ed )pa'e)

t+at are&= 27800,t2&In )pa'e) #t+ 'e#l#n$ +e#$+t 18 ,t and&Spa'e tpe)

& ,,#'e

& o66& Atr#u*

& (on'our)e

& (orr#dor

& Stora$e #n'l.

nonre,r#$eratedare+ou)eF

& %*na)#u*/,#tne))

/eer'#)e

& Area7 pla#n$ area

& %*na)#u*

)eat#n$& (onvent#on

e+#6#t/event

)pa'e

& (ourtroo*

& Auto*ot#ve)pa'e

& #re )tate

en$#ne roo*

& anu,a'tur#n$

& (orr#dor/tran)#t#on

and 6a area)& Reta#l

& #6rar read#n$ and

)ta' area)

& #)tr#6ut#on/)ort#n$

area& 5ran)portat#on

& "a$$a$e and

)eat#n$ area)

& ?or)+op

Section & ' &.&.0..1


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#n#*u* Sl#$+t ene)trat#on Area

5+e )l#$+t area *u)t dal#$+t a *#n#*u* o, +al, t+e ,loor area and

prov#den#*u* rat#o o, 3@ o, )l#$+t area to dal#$+t area #t+ a )l#$+tC5 at lea)t 0.40

R&a *#n#*u* )l#$+t e,,e't#ve aperture o, at lea)t 1@

E'ept#on)

&(l#*ate >one) ;-!&Spa'e) under )+aded roo,) 6ea* )unl#$+t 6lo'ed ,or *ore t+an 1800dat#*e +our) 6eteen ! a.*. and 4 p.*.F&al#$+t area under roo,top *on#tor) #) 80@ o, ,loor area&o'u*ented t+at 90@ o, )l#$+t area #) )+aded on June 21 Nort+ernHe*#)p+ereF/e'e*6er 21 Sout+ern He*#)p+ereF at noon 6

per*anent ,eature)&?+ere total )pa'e area *#nu) t+e pr#*ar and )e'ondar )#del#$+tedarea)F #) 27800 ,t and +ere l#$+t#n$ #) 'ontrolled a''ord#n$ to)#del#$+t#n$ reu#re*ent) o, Se't#on 9.4.1

Section & ' &.&.0.1 and &.=..1


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ene)trat#onB-a'tor

B-,a'tor not $reater t+an )pe'#,#ed #n 5a6le) 8.8-1 t+rou$+

8.8-! E'ept #n 'l#*ate >one1#t+ a 'ool#n$ de)#$n te*p o, 98 and $reater7

t+e *a alloed B-,a'tor) ,or vert#'al ,ene)trat#on ,or all 'ond#t#oned

)pa'e) are

& B-0.32 ,or non-*etal ,ra*#n$

& B-0.80 ,or ,#ed *etal ,ra*#n$

& B-0.;8 ,or opera6le *etal ,ra*#n$

& B-0.!3 ,or entran'e door *etal ,ra*#n$

a6eled and 'ert#,#ed 6 *anu,a'turer

Sl#$+t) deter*#ne ,or a )lope o, 20 a6ove t+e +or#>ontal

E5ceptions& A!.1 a''epta6le ,or )l#$+t)7 A!.2 a''epta6le ,or ot+er vert#'al

,ene)trat#on7 and A< a''epta6le ,or opaue door)

& ANSI/ASA 108 a''epta6le ,or $ara$e door)

Section & ' &.&.0.0 # SH%(


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Cert#'al ,ene)trat#on 8.8.4.4.1F

& SH%( value) 5a6le value ,or appropr#ate total vert#'al,ene)trat#on area

E5ceptions&or vert#'al ,ene)trat#on onl7 t+e SH%( #n t+e propo)ed 6u#ld#n$ 'an6e redu'ed 6 u)#n$ t+e *ult#pl#er) #n 5a6le 8.8.4.4.1 ,or ,ene)trat#on)+aded 6 per*anent proe't#on) t+at #ll la)t a) lon$ a) t+e 6u#ld#n$

#t)el,&or vert#'al ,ene)trat#on )+aded 6 part#all opaue per*anentproe't#on) t+at #ll la)t a) lon$ a) t+e 6u#ld#n$ #t)el,7 'an redu'e t+e P6 *ult#pl#n$ 6 value) #n Se't#on 8.8.4.4.1&Street-level e'ept#on onl appl#e) +en u)#n$ t+e pre)'r#pt#ve'o*pl#an'e opt#on&na*#' $la>#n$ 'annot 6e area-e#$+ted #t+ ot+er ,ene)trat#on and*#n#*u* SH%( o, dna*#' $la>#n$ )+all 6e u)ed to )+o 'o*pl#an'e,or dna*#' $la>#n$&Nort+-or#ented vert#'al ,ene)trat#on alloed to +ave SH%( loer t+ant+at )pe'#,#ed 5a6le) 8.8-1 t+rou$+ 8.8-! 6 0.08

ene)trat#on SH%(

:nformation ' Over$angs


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:nformation'Over$angs

Standard 'red#t) per*anent over+an$) 6 adu)t*ent to

SH%(

S#>e o, over+an$ #) deter*#ned 6 proe't#on ,a'tor

Section & '&.=..0S l H t % # ( ,,# # t SH%(F


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eter*#ned #n a''ordan'e #t+ NR( 200

E5ceptions& S( 0.!; #) a''epta6le ,or overall ,ene)trat#on area NR( 300F

& SH%( o, 'enter-o,-$la)) #) a''epta6le NR( 300F ,or overall

,ene)trat#on area& SH%( ,ro* A!.1 ,or )l#$+t) #) a''epta6le

& SH%( ,ro* A!.2 ,or ot+er vert#'al ,ene)trat#on #) a''epta6le

Solar Heat %a#n (oe,,#'#ent SH%(F

Section & ' &.&.0.0.S l# +t SH%(


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Sl#$+t)& SH%( value) 5a6le value ,or appropr#ate total )l#$+t area

E5ceptions

I, )l#$+t)

&Have a $la>#n$ *ater#al or d#,,u)er #t+ *ea)ured +a>e value 90@ +ente)ted a''ord#n$ to AS5 1003

&Have a )l#$+t C5 0.40

&Have all $eneral l#$+t#n$ #n dal#$+t area under )l#$+t) 'ontrolled 6*ult#level p+oto'ontrol) per Se't#on 9.4.1.1 ,F

na*#' %la>#n$

n#*u* SH%( #) u)ed to de*on)trate 'o*pl#an'e&(on)#dered )eparatel ,ro* ot+er vert#'al ,ene)trat#on

&Area-e#$+ted avera$#n$ #t+ ot+er vert#'al ,ene)trat#on t+at #)nOt dna*#'$la>#n$ #)nOt alloed

Sl#$+t SH%(

Section & ' &.&.0.&ene)trat#on r#entat#on


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62

ene)trat#on r#entat#on

5o opt#on) to 'o*plD

aF AG At/4 andAeG At/4

O46F A SH%(G At SH%('F/4 and

Ae SH%(eG At SH%('F/4

?+ere7

A3

and SH%(3

L e)t-or#ented vert#'al ,ene)trat#on area and SH%(Aeand SH%(e L ea)t-or#ented vert#'al ,ene)trat#on area and SH%(

At L total vert#'al ,ene)trat#on area

SH%(' L SH%( 'r#ter#a #n 5a6le) 8.8-1 t+rou$+ 8.8-!

E5ceptions& (o*pl#e) #t+ E'ept#on 3 o, Se't#on 8.8.4.4.1

& "u#ld#n$) )+aded 6 ot+er 6u#ld#n$) #t+#n 20 ,t to t+e )out+ +#'+ #) at lea)t a)tall a) t+e propo)ed 6u#ld#n$

& "u#ld#n$) #t+ )+ade on


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C#)#6le 5ran)*#ttan'e/SH%( Rat#o

?+en auto*at#' dal#$+t#n$ 'ontrol) are reu#red per 9.4.1.1eF or ,F&,ene)trat#on to +ave a rat#o o, C5/SH%( not le)) t+an l#)ted #n 5a6le) 8.8-1t+rou$+ 8.8-! 1.1 ,or all 'l#*ate >one)F

E5ceptionsD

&(an +ave a l#$+t-to-)olar-$a#n rat#o S%F o, not le)) t+an 1.28 'enter-o,-$la)) SH%( and C5 deter*#ned per NR( 300 and NR( 301 6

#ndependent la6 or #n'luded #n a data6a)e pu6l#)+ed 6 a $overn*ent a$en' and'ert#,#ed 6 a *anu,a'turer

&ene)trat#on not 'overed #n )'ope o, NR( 200

&En'lo)ed )pa'e) +ere dal#$+t area under roo,top *on#tor) #) 80@ o, en'lo)ed ,loor area

#t+ )l#$+t) 'o*pl#n$ #t+ 8.8.4.2.3

+ere )#del#$+t#n$ e,,e't#ve aperture #) = 0.18

&na*#' $la>#n$ C5/SH%( rat#o and S% deter*#ned u)#n$ *a#*u* C5 and *a#*u* SH%(

(on)#dered )eparatel ,ro* ot+er ,ene)trat#onQ 'annot #n'lude dna*#' $la>#n$ #t+ot+er ,ene)trat#on ,or area-e#$+ted avera$#n$

C li " $


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64

Compliance "pproac$es

MandatoryMandatory


(required for most

compliance

options)


Ener$ (odeEner$ (ode(o*pl#an'e(o*pl#an'e


OptionOption


BudgetBudget

Trade OffTrade OffOptionOption


Envelope

!"C

#ig$ting

S%

Power

Ot$er

Section & ' &.;."u#ld#n$ Envelope 5rade ,, pt#on TRule)


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"u#ld#n$ *u)t 'o*pl #t+ Se't#on) 8.17 8.47 8.


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66

& I, 6u#ld#n$ per*#t #ll appl to le)) t+an t+e +ole6u#ld#n$

Para*eter) relat#n$ to un*od#,#ed e#)t#n$ 'ond#t#on) or ,uture

6u#ld#n$ 'o*ponent) to 6e #dent#'al ,or 6ot+ propo)ed EP and

6a)e EP& uture 'o*ponent) *eet pre)'r#pt#ve reu#re*ent) o,

Se't#on 8.8

2rade6Offs #imited to Building Permit

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ASHRAE 90.1-2013 BUILDING ENVELOPE-EXPLAINED

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