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NtaTES PER 2009 WSEC NC3TES PER 2Q09 WSEC Washington State Energy Code 2009
<br /> Heating Sytstem Sizing - Glimate Zone 1
<br /> 502.4.3 Seals and Weatherstripping: a. Exteric�r joints around windows and door frames, 5C12.4.5 Building Air Leakage Testing: Building envelope air leakage control shall be
<br /> openings between walls and foundation, between walls and roof and wall panels; openings considered acceptable when tested ta have an air leakage less than O.OQ030 Specific Builder -Lakeland Homes File:105 Prepared by: Dennis Smiley
<br /> at penetratiflns of utility services thraugh wal(s, floQrs and roofs; and all ather openings in Leakage Area (SLA) when tested with a blower daor at a press of 50 Pascals {0.2 inch Plan - 2178_Bay with Wood Floor Home Design 360-658-3302
<br /> the building envelope and all other openings in between units shall be sealed, caulked, w.g.}. Testing shall occur at any time after raugh in and after installation of penetrations of
<br /> gasketed or weatherstripped to limit air leakage. ather exteriQr jQints and seams shall be the building enveiope, including p�netrations for utiHties, plumbing, electrical, ventilation, _ __�__..__...___._____�ti_.�._____ __.__......... ._._..._ �m_ ...___._ �_,_n . _..__. ._.__._�..._�___.�.....____�_.__�� ......_._
<br /> similarly treated, or taped, or covered with maisture vapor permeable housewrap. and combustion appfiances and sealing thereof. When required by the building official, the Qesign Temp Difference Indoor - Outdoor Design Temp = 70 - 21 49
<br /> test shall be conducted in the presence of department staff. The blower door test results Conditioned Volume (Lower Floor x H) + (Upper Floor x H) 18548
<br /> 502.1,6.1 1/apor Retarders: Vapor retarders shall be installed on the warm side {in winter) shall be recorded on the certificate required in Section 1a5.4.
<br /> of insulation as specified in the following cases. EXCEPTIONS: 1. Additions less than 750 square feet. 2. C�nce visual inspecti�n has C o n d i t i o ne d F lo o r A r e a L o w e r F loor + Upper F l�or 2 1 7 8
<br /> EXCEPTION: Vapor retarder installed with not more than 1f3 of the nomina! R-value confirmed the presence of a gasket (see Section 502.4), aperable windows and daars Vertical Glazing Area Windows and Glass Doars 356
<br /> between it and the conditianed space. manufactured by small business shall be permitted to be sealed o#f at the frame prior to the Glazing Percentage Vertical Glazing / Flaor Area - 356 / 2178 16.35
<br /> test.
<br /> 502.1.6.2 Floors: Floars separating conditioned space from uncond'rtioned space shall Table 6-1 for Climate Zone 1 {Option based on Glazing Percentage)
<br /> have a vapor retarder installed. The vapor retarder shall have a one perm dry cup rating or Specific Leakage Area (SLA} shall be calculated as follows:
<br /> Vertica� �aor Above Below Be(ow
<br /> less (i.e. four mil [O.OQ4 inch thick] polyethylene or kraft fac�d material). �pt�Q� Glaziog/ � Overhead U- Ceiling Vaulted Grade Grade Grade Ffoc�r ��a�'
<br /> SLA = (CFM50 x 0.055}/(CFA x 144) Floor/o Factor U-Factor Factor Wa�l lr�t Ext Floor
<br /> 5Q2.1.6.3 Roof/Ceilings: Rooffceiling assemblies where the ventilatiQn s�ace above the Where:
<br /> insulation is less than an average of 12 inches shaN be prc�vided with a vapor retarder. CFM50 = Blower door fan flow at 5U Pascal pressure difference II 25% 0.32 0.50 a.20 �4� R-38 R-2� R-21 R-10 R-30 R t�
<br /> F a c e d b a t t i n s u l a t i o n w h e r e u s e d a s a v a p a r r e t a r d e r s h a{I b e f a c e s t a p l e d� S i r t g l e r a ft e r �F A = C o n d i t i€�n e d F i o o r A r e a o f t h e h o u s i n g u n i t
<br /> jQist vaulted ceiling cavities shall be of sufficient depth ta allow a minimum one inch vented _---,._v .. ,,...�.m.ti..,R_,.__.�v_ m�„ . . .�.� _,,,.d�. ..�._._..`�,____._,__...�...�._��.,�w_�
<br /> air space above the insulation. During testing: UA T�tals
<br /> 1 . Exterior windows and doors, fireplace and stove doors shall be closed, but ncat sealed. 2. Component Area U-Factor UA
<br /> 502.1.6.4: Vapar retarders shall not be required in rQaffceiling assembfies where the Dampers shall be closed, but not sealed; including exhaust, intake, makeup air, back draft, Vertical Glazing 356 0.32 'E 13.9
<br /> ventilation space above the insulation averages 12 inches ar greater. and flue dampers; 3. Interic�r doors connecting conditioned spaces shali be open; access Exterior poors 38 0.2 7.6
<br /> hatches to cc�nditianed crawl spaces and conditioned attics shall be apen; doors cannecting
<br /> 502.1.6.5: Vapor retarders shall not be required where all of the insulation is instafled to unconditioned spaces shall be closed but not sea{ed; 4. Exterior openings for continuous Overhead Glazing Q 0.5 0.0
<br /> between the roof inembrane and the structural r�of deck. aperatiorr ventilation systems and he�t recovery venti(ators shall be cfased and sealed; 5, Ceiling - STD F�49 1,330 Q.027 35.9
<br /> Heating and cc�oling system(s) shall be turned aff; 6. HVAC ducts supply and return Abaue Grade Walls 2198 O.Q56 123.1
<br /> 502.1.6.6 Walls: Walls separating conditianed space from unconditioned space shall have registers shall nat be sealed.
<br /> a vapar retarder installed. Faced batt insufation shall be face stapled. Framed Flaors 1,330 O.p2g 38.6
<br /> '[05.4 Certificate: A perm�nent certificate shail be posted within three feet of the electrical Slab on Grade Floors (L) Q 0_54 p.p
<br /> 502.1.5.7 Ground Cover: A round cover of six mil O.Oa6 inch thick black o{ eth lene or distribution panel. The eertifiicate shall be completed by the builder or registered design
<br /> 9 � ) p Y Y . . TotallJA 319.1
<br /> approved equal shall be laid over the ground within crawl spaces. The ground cover shall professional. The certificate shall list the predominant R-values of insulation installed in or
<br /> be overfapped 12 inches minimum at the jc�ints and shall extend to the foundation wall. on ceiling/roof, walls, foundation (s(ab, basement wall, crawlspace wall and/or floor), and ------�-_ W��.___ ,_ .. �...___._ _ . .�, ___,M�� �.__ _._._:___ ___ _,_
<br /> ducts outside the conditianed s aces� U-factars for fenestration� and the so{ar heat ain Heating System Sizing by BTUtHR
<br /> EXCEPTiON: The ground cover may be omitted in crawl spaces if the crawl space has a p , , 9
<br /> concrete slab floor with a minimum thickness af 3-112 inches. coefficient (SHGG) of fenestration. Where there is more than ane value for each Envelope Heat Load Total UA x Qesign Temp Difference 15,635.9
<br /> component, the certificate shall list the value covering the largest area. The certificate shall Air Leakage Load Volume x C�.6 x Temp Difference x 0.018 9,815.6
<br /> 505.1 Interior Li htin A minimum of 5� ercent of all luminaires shall be hi h efficac list the type and efficiency of heating„ coo[ing, and service water heating equipment, duct Buildin Desi n Heat Load Envelo e Load + Air Leaka e Laad 25,451.5
<br /> g g� p � � leaka e rates includin test conditic�ns as s ecified in Section 503.10.2 and air leaka e g � p �
<br /> lumir�aires. � � � � � Add Duct Load Factor Building Load x 1.15 29,269.2
<br /> results if a blower dc�or test was conducted.
<br /> __.�,.�_� _,� . . - - .:_ _ . ,., - .. __
<br /> LL_ __. . ._ ,
<br /> 503.8.1 Temperature Contral: The primary space conditioning system within each dwelling
<br /> unit shall be provided with at least one programmabls therm�astat far the regulation of ADVANCED FRAMED CEILI�1�: Advanced framing assume� full and even depth of Maximum Heat Equipment 4utput Total Building Load x 1.5 43,903,8
<br /> temperature. The thermostat shaEl allow far, at a minimum, a 5-2 programmable schedule insulation extending to the outside edge of exterior walls. ._...e_......_........_..._----....._._._.__._._ ...�....._....�,...___._---...___....._.._..._,.._._.................._...__._____..,._..__.._._.._.__............._..--._....__..._...-----...._........................_..............._.._..._.__.._.......
<br /> {weekdays/ weekends) and be capable of providing at (east two programmable setback Door and Window Schedules
<br /> � da . .-.--_.____r�, ..: __ . _ _ _: _ _. . _ __ _�_ _,_ ,�� , ._..
<br /> periods per y _ _� �. �.___ _ __�,.. ___. w ____.�,._ ��,� _. �. _�.���_____��_.__._.
<br /> Vertical Glazin - Windows and Glass Doors
<br /> 503.10.1 Installation o#' ducts in exteriQr walls, ffoors or ceilings shall not displace required Chapter 9 Credit �ptions (Min C7ne Credit Required) Type Quantity Width Ft Width In Height Ft Height In
<br /> envelope insulation. Building cavities may not be used as ducts. . 1a - HIGH EFFICiENG`f HVAC EQUIPME�IT 1: Gas, propane or ail-fired furnace ar bailer Window 3 5 0 4 0
<br /> with minimum AFUE of 92%, or Air-source heat pump with minimum HSPF of 8.5. (1
<br /> 5�3.10.2 Leakage Testing: Ducts shall be leak tested in acc�rdance with RS-33, using the Credit) Windaw 2 2 0 3 0
<br /> maximum duct leakage rates specified in Section 5C13.10.3. Window 2 6 � 4 0
<br /> Window 2 2 Q 4 0
<br /> 503.10.3 Sealing: All ducts, air handlers, filter boxes, and building cavities used as ducts Windov�r 1 4 0 3 6
<br /> shall be sealed, Joints and �eams shall comply with Section M 1601.3 c�fi the lnternational
<br /> Residential Code or Section 603.9 of the International Mechanical Gade. Duct tightness Window '[ 6 0 3 6
<br /> testirtg shall be conducted to verify that the ducts are sealed. A signed affidavit Window 2 2 0 5 p
<br /> documenting the test results shall be provided to the jurisdictian having autharity by the Window 1 5 0 5 0
<br /> testing agent. When required by the building official, the test shall be conducted in the
<br /> presence of department staff. Duct tightness shall be verified by either of the following: Windaw 1 2 0 5 0
<br /> Windaw 1 5 5 3 0
<br /> 1. Past-construction test: Leakage ta outdoors shal( be less than ar equal to 6 cfm per 10� Window 2 4 0 4 Q
<br /> square feet of conditioned floar area or a tr�tal leakage less than or equal to 8 cfm per �U0
<br /> square feet of conditioned flaor area when tested at a pressure differential of 0.1 inches Gfass Daor 2 6 0 6 10
<br /> w.g. (25 F�ascals) across the entire system, including the manufacturer's air handler ,4rea - 356 sf U-Factor - 0.32 UA - 113.9
<br /> encic�sure. All register boots shall be taped or otherwise sealed during the test.
<br /> Exterior poors
<br /> 2. Rough-in test: Total leakage shall be less than or equaf to 6 cfm per 10U square feet of
<br /> conditioned floor area when tested at a pressure differential af 0.1 inches w.g. (25 Pascals) Type Quantity Width Ft Width ln Height Ft Height In
<br /> across the roughed-in system, including the manufacturer's air handler enclosure. All E�erior poor 1 3 0 6 8
<br /> register boats shall be taped ar atherwise sealed during the test. !f the air handler is not Exteric�r Qoar 1 2 8 6 8
<br /> installed at the time Qf the test, total leakage shall be Cess than or equal to 4 cfm per '!QU
<br /> square feet of conditioned floor area. Area - 38 sf U-F�ctar - 0.20 UA - 7.6
<br /> C?verhead Glazin
<br /> Type Quantity Width Ft Width In Height Ft Height 1n
<br /> Area - Q sf U-Factor - 0.50 UA - 0.0
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