HomeMy WebLinkAbout1985-04-29 Exterior Envelop U ComputationIXURIOR INVtLOPE AVERAGE "U" COHPUTATlOfi
ouutR: _____________
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SITE ADDRESS: } ^ C' ! ^/\ f ^ ^ 7~^ I_________________________y
CONTRACTOR: ^iLTST DATE: V/^ f/4^ _RHONE; ^7)t^ ^/L
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3
DETERMINE V/ORKIMG SQUARE FOOTAGE OF EACH:
TOTA!.EXPOSED WALL AREA. . . ..4 *q ft X "U”«II m 70j/
TOTAL ROOF/CEILINC AREA. . . .sq ft X "U"1 0 A u./->
TOTAL EXPOSED WALL AREA CALCULATIONS:
Total exposed wall
area above floor. . . .*q ft
a)Total wall window area:
(t)
a lazed. . .»q ft X "U"m
•
a lazed. . .sq ft X "U”....- - -m
b)Total door area _ _ _ _ _
r')sq ft X ••U”m - - -
c)
••
Total illding alass door area:
0 glazed. .
—^ •*q ft X "T •
m . .....
glazed. . .»q ft X "U'‘m
<0 total fireplace wall area C »q ft X "r m
•)Total wall franinq area
(Average 10^). . ..»q ft X •¥’.0?/
f)Total net wall area above
floor (insulated). . .
0/^0 »q ft 8 "U”.0772 m /7-s^
ij)Total rlin Joist area. . .C ut ^sq ft 8 "U"/ 7!m r2P.77
Total foundation
area (Exposed). . . . .
'/7 o ^sq ft
h)Total foundatiM
window area. . . . . .
/V/^ 4^/sq ft 8 'V
1)Total not foundation
area above trade. . . .
::ioi sq ft * *v . us J. 71.
TOTAL a) tbra 0 •1
If IttA #3 It tMc i«Mc •«. or l«»i IMm II«« you hiv# Mil iRt lalcftt ftf
2 MCAR l.livof A ftod 0.
2aft« 1
TOTAL IXPOSED ROOr/CCILIHr. CALCULATIONS:
Total OKOosedIf* I rK|>nsea ^
roof/celllnn area. . . . p sq ft
J) Total ikyltoht area. . . Z'J sq ft % "O'
k) Total roof/cel IInq framingroof fee I I inq framinq y
area (Averaoe lOk).......... '"V(p rZ $q ft x "U" j 0^/■i'O
1) Tgtal net Insulated
roof.'cel I Ing area sq ft X "U" ,02 C /0.5J
k.TOTAL J) thru I) !h 71 t
If total of fh Is the Same as, or less than f2, you have met the Intent of
2 MCAIt 1.16008 A and 0.
ALTERNATE BUILOIHG ENVELOPE DESIGN
To utilize the total envelops system method, the values established by the sum
of I terns #J and fk shall not be greater than the sum of Items fl and #2.
1.
3.
* ?.
♦ t.
1-1/7
iLu.• _AL£2.
CfftTIfICATtON
I hereby certify that I have calculated the 'V f.,*t6rs and *11"
values herein and that the building here described lacets or exceeds the State
•f MInneioti tnergy Conservation Act.
<»ate}
-m,:
t-xi.
* •.
rate 2
If:* •
A
C
D
H
IL
CONSTRUCT I OH R VALUE
WALL TRAM INC SECTION:
Interior air fIIm
i ^ =' J ' ^ * f
IncUes soft wood
/7/ ^ .jJ ^ ^ // ^ ^(d
jj ■S :y ■•/-/#
air fI InEKterlor
TOTAL A • //.g>5
U • 1/R • ___
WALL SECTION (INSULATED)
Interior air fIIw
Vj jJ ^ ^ > Po^“T^
/ ■■/« '-i //go
-i
E.'* ter I or ¥air Trim
TOTAL R
U - l/R - ___
refill^<11111
FOUNDATION INSULATION REQUIRED:
Min. R-5 on entire wall ^
Hin. R-IO down to frost depth
JOIST
-^1
• SECTION:
Interior air film n.AR
—<2 'tv. ^ c.-1 /; ;» j •" v‘ _ . . _n-0^
—(5 /.tT.
—(l|
—(5 C/^L c A ifi /r i? _
—(fi EKterlor airTnS *i.T7
l/R -
rOUNOATION SECTION:
O.AN
-<2 rii icf,: 0
-(3
ik
/< / .. / w.________• Ifft l7—<e
(S
iMtariof ai f t i iw ^ f • f r
(R
TOTAL R - /J.
II • 1/R • ^
SLAB ON GRADE
aj
*T: • ; •. • a • <r.
'•e “ * ' •:•'* •-i • a ^ * • a dQl a ^.iaCT3PCKr
• •tt
*». <1 •■» M df ‘»
IP ^ »
f
A...........I________
M ^ •*-^T VTI
• a* - a ^
.•k - • * a * * It ’ • ’ *2
ra^ S
(D*-®
AIR
FLOW
VENTED
0-1 HD
VENTED
CONSTRUCTIOm R VAlUC
CEILIur. SrCTlOH (IUSULATCO):
1 Interloi air film O.Al
2 ^ ^ V/ r.j
3
4 txterlor air film (still) O.AI
TOTAL R
U - l/R •
CEIL INC.FRAMINC. SECTION:
1 Interior air film n.fil
2
3
4 Interior air film (still) f)7Ar
5 / Inches soft wood
TOTAL h • fj.
U - 1/R
CCiLi R StCTiOM (MISULATEP);
Interior air film O.AI
f Me r i or air f i lir, (st ill) ?K TT
TOTAL R -
U - l/R •
CEILINR fRAHIlin SECTION:
1 Interior air film
2
3 “
O.fil
4 taterlor air fltn UttlQ *>.fT
5 Inches soft wood
TOTAL R -
U • l/R «
1 .Inside air flln*
2
3
4
K.Rt
5 O^Fde air fiU Klf
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