approved doc part l october 2010

8/8/2019 Approved Doc Part L October 2010

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Approved Document L1A

(2006 edition)Approved Document L1B(2006 edition)

Approved Document L2A(2006 edition)

Approved Document L2B(2006 edition)

Lt rn and crrctn

Th Buldng Rgulatn 2000

March 2010


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1213 Delete schdul 2.

14 elace th man part paragraph 3 wth:

3 i a unt cntan bth lng accmmdatn and pac t b ud r cmmrcalpurp (r xampl wrkhp r c), th whl unt huld b tratd a a dwellinga lng a th cmmrcal part culd rrt t dmtc u. Th culd b th ca , rxampl:

15 elace th cmmntary atr paragraph 9 wth:

The calculations required as part o the procedure used to show compliance with thiscriterion can also provide the inormation needed to prepare the Energy PerormanceCertifcate required by regulation 17E o the Building Regulations 2000 and by the EnergyPerormance o Buildings Regulations 2007 (SI 2007/1669).

15 elace ub-paragraph b. paragraph 14 wth:

b. thy ar unhatd, t adpt th am U-alu and lmtatn t thrmal brdgnga n th rt th buldng, and t lmt th pnng ara t 25% th r ara thcmmn part.

15 Add atr paragraph 17:

otication of work covered by the energy efciency requirements

17a in almt all ca cntructng nw dwllng, t wll b ncary t nty a BCBn adanc any wrk tartng xcpt a t ut n paragraph 17b t 17 blw.

Cometent erson self-certication schemes

17b it nt ncary t nty aBCB n adanc wrk whch t b carrd ut bya prn rgtrd wth a rlant cmptnt prn l-crtcatn chm ltd nschdul 2 t th Buldng Rgulatn. in rdr t jn uch a chm a prn mutdmntrat cmptnc t carry ut th typ wrk th chm cr, and al thablty t cmply wth all rlant rqurmnt n th Buldng Rgulatn.

17c Whr wrk carrd ut by a prn rgtrd wth a cmptnt prn chm,rgulatn 16 th Buldng Rgulatn 2000 and rgulatn 11 th Buldng(pprd inpctr tc) Rgulatn 2000 rqur that th ccupr th buldngb gn, wthn 30 day th cmpltn th wrk, a crtcat cnrmng that thwrk cmpl ully wth all applcabl buldng rgulatn rqurmnt. Thr al arqurmnt t g thBCB a ntc th wrk carrd ut, agan wthn 30 day thcmpltn th wrk. Th crtcat and ntc ar uually mad aalabl thrughth chm pratr.

17dBCBs ar authrd t accpt th crtcat and ntc a dnc

cmplanc wth th rqurmnt th Buldng Rgulatn. Lcal authrty npctnand nrcmnt pwr rman unactd, althugh thy ar nrmally ud nly nrpn t a cmplant that wrk d nt cmply.

17e lt authrd cmptnt prn l-crtcatn chm rlatng t th energyefciency requirements n nw dwellings can b und at: www.cmmunt.g.uk/plannngandbuldng/buldngrgulatn.

16 Delete rm ub-paragraph a. paragraph 20 n gratr than 450m2 ttal r ara.

16 Delete ub-paragraph b. paragraph 20.

16 Delete rm ub-paragraph a. paragraph 21:

in th pcc crcumtanc t ut n paragraph 61, thair permeabilityud n thcalculatn thTERmay b ard rm th alu t ut n ppndxR. thr alumay b ard.

16 Delete tnt 8.


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17 elace th ull tp at th nd ub-paragraph a. paragraph 25 wth , and.


b. th maurdair permeability(whr applcabl).

17 elace rgulatn 20 wth:

20D.(1) subjct t paragraph (4), whr rgulatn 17 appl th prn carryng utth wrk hall g th lcal authrty a ntc whch pc:

a. th targt o2

mn rat r th buldng; and

b. th calculatd o2

mn rat r th buldng a cntructd.

(2) Th ntc hall b gn t th lcal authrty nt latr than day atr th wrkha bn cmpltd.

(3) lcal authrty authrd t accpt, a dnc that th rqurmnt rgulatn 17 wuld b atd th buldng wr cntructd n accrdanc wth an

accmpanyng lt pccatn, a crtcat t that ct by an nrgy ar adnd n rgulatn 17J wh accrdtd t prduc uch crtcat r that catgry buldng.

(4) Whr uch a crtcat gn t th lcal authrty:

a. paragraph (1) d nt apply; and

b. th prn carryng ut th wrk hall prd t th lcal authrty nt latr than day atr th wrk ha bn cmpltd a ntc whch:

. tat whthr th buldng ha bn cntructd n accrdanc wth th lt pccatn whch accmpand th crtcat; and

. t ha nt, lt any chang t th pccatn t whch th buldng ha bncntructd.

17 elace paragraph 27 wth:

27 it wuld b uul t bth th buldr and thBCB th buldr carr ut aprlmnary calculatn br cntructn tart bad n plan and pccatn. Thcalculatn wll g an ndcatn whthr a dgn cmplant and wll prduc a lt th atur th dgn that ar crtcal t achng cmplanc.

BCBs may ask or this inormation as part o the process o checking compliance.


in all ca thDER huld b calculatd aumng lw nrgy lghtng n 30% xdlght ttng.

18 in paragraph 32 relace rqurmnt wth paragraph n ln 3 and 6.18 in paragraph 32 add xd atr cnt n ln 6.


33 U-alu and thrmal brdg prprt hall b calculatd ung th mthd andcnntn t ut n BR 44311, Conventions or U-value calculations, and hall b badn th whl unt (.. n th ca a wndw, th cmbnd prrmanc th glazngand ram).

18 dd paragraph 33a:

33a Th U-alu glazng can b calculatd r th actual unt, th mallr th twtandard wndw dnd n Bs e 14351-111a, r th tandard wndw cnguratn t

ut n BR 443

11

. sP 2005 Tabl 6 g alu r drnt wndw cnguratn thatcan b ud n th abnc tt data r calculatd alu.


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18 Delete paragraph 34 and th cmmntary.

18 Add tnt 11a:

11a e 14351-1:2006 Windows and doors. Product standard, perormance characteristics.

19 Delete paragraph 36.

19 in paragraph 37, relace:

Limiting thermal bridging and air leakage: Robust construction details or dwellings andsimilar buildings12

wth:

Accredited Construction Details or Part L12.

19 elace nt 1at th t Tabl 2 wth:

1. Th U-alu r r wndw and rght n th tabl ar bad n th U-alu

hang bn ad wth th r wndw r rght n th rtcal ptn. i apartcular unt ha bn ad n a plan thr than th rtcal, th tandard gn nth pprd cumnt huld b mdd by makng an adjutmnt that dpndntn th lp th unt llwng th gudanc gn n BR 44311.

19 elace tnt 12 wth:

12Accredited Construction Details or Part L, LG, 2006.

20 Delete ln 5 and 6 paragraph 40.

20 Delete Tabl 3.

21 Delete rm paragraph 43 n th ara actd by th buldng wrk, and th gratr .

21 t th nd ub-paragraph a. paragraph 43, relace r wth and.

22 ove th hadng CII 4 BILDIG FABIC t ab paragraph 49.


49Dwellings huld b cntructd and quppd that prrmanc cntnt wthth prdctdDER. ndcatd n paragraph 25, a nal calculatn th DER rqurdt tak accunt any chang n prrmanc btwn dgn and cntructn and tdmntrat that th buldng a cntructd mt th TER a rqurd by rgulatn17. Th llwng paragraph n th ctn t ut what n nrmal crcumtanc wuldb ranabl prn t nur that th actual prrmanc th buldng cntntwth thDER.

22 in ub-paragraph a. and b. paragraph 52, relace apprd wth accrdtd.

22 in th lat ln ub-paragraph b. paragraph 52, relace rrnc n tnt21 wthBRe iP 1/0621 and BRe iP 49721a.

22 in ln 6 paragraph 53, relace apprd wth accrdtd.

22 Add tnt 21a:

21a BR 497 Conventions or calculating linear thermal transmittance and temperatureactors, BRe, 2007.

23 in th tw hadng ab paragraph 57 and 58, relace aroved wth accredited.

24 Delete th cnd ntnc paragraph 61, ub-paragraph a. and b. and th twparagraph cmmntary.

24 t th nd ub-paragraph a. paragraph 63, relace th ull tp wth; r.


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64 Paragraph L1(b)() schdul 1 t th Buldng Rgulatn rqur fxed buildingservices t b cmmnd by ttng and adjutmnt a ncary t nur that

thy u n mr ul and pwr than ranabl n th crcumtanc. in rdr tdmntrat that th hatng and ht watr ytm ha bn adquatly cmmnd,rgulatn 20 tat:


20C.(1) Th rgulatn appl t buldng wrk n rlatn t whch paragraph L1(b) schdul 1 mp a rqurmnt, but d nt apply t th prn r xtnn anyxd buldng rc whr ttng and adjutmnt nt pbl r wuld nt act thnrgy cncy that xd buldng rc.

(2) Whr th rgulatn appl th prn carryng ut th wrk hall, r th purp nurng cmplanc wth paragraph L1(b) schdul 1, g t th lcal authrty antc cnrmng that th xd buldng rc ha bn cmmnd n accrdanc

wth a prcdur apprd by th scrtary stat.(3) Th ntc hall b gn t th lcal authrty:

a. nt latr than th dat n whch th ntc rqurd by rgulatn 15(4) rqurd tb gn; r

b. whr that rgulatn d nt apply, nt mr than 30 day atr cmpltn th wrk.

24 elace paragraph 65 and 66 wth:

65 t all fxed building services wll nd t b cmmnd. Wth m ytmadjutmnt nt pbl a th nly cntrl ar n and wtch. exampl th wuld b m mchancal xtractn ytm r ngl xd lctrcal hatr. inthr ca commissioning wuld b pbl but n th pcc crcumtanc wuldha n ct n nrgy u.

Fixed building services which do not require commissioning should be identifed in thecommissioning plan, along with the reason or not requiring commissioning.

66 Whr commissioning carrd ut t mut b dn n accrdanc wth a prcdurapprd by th scrtary stat. fr hatng and ht watr ytm th apprdprcdur ar t ut n th mtc Hatng mplanc Gud. fr ar-cndtnngand mchancal ntlatn ytm th apprd prcdur t llw th manuacturrntructn.

66a Commissioning tn carrd ut by th prn wh ntall th ytm. in thrca t may b carrd ut by a ubcntractr r by a pcalt rm. it mprtant thatwhr carr t ut llw th rlant apprd prcdur.

66b Whr a buldng ntc r ull plan ha bn gn t a lcal authrty BCB th

ntc cmpltn commissioning huld b gn t thatBCB wthn day th cmpltn th cmmnng wrk. in thr ca, r xampl whr wrk carrd ut by a prn rgtrd wth a cmptnt prn chm ( paragraph 17b),t mut b gn wthn 30 day.

66c Whr an apprd npctr th BCB th ntc cmpltn commissioninghuld gnrally b gn t th apprd npctr wthn day th cmpltn wrk. Hwr, whr th wrk carrd ut by a prn rgtrd wth a cmptntprn chm ( paragraph 17b) th ntc mut b gn wthn 30 day. Whr thntallatn xd buldng rc whch rqur commissioning carrd ut by aprn rgtrd wth a cmptnt prn chm th ntc cmmnng wll bgn by that prn.

66d Untl thBCB rc th cmmnng ntc t cannt b ranably atdthat Part L ha bn cmpld wth and cnquntly unlkly t b abl t g a

cmpltn/ nal crtcat.

25 Delete paragraph 70, rgulatn 16, and paragraph 71 and 72.


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76a Commissioning man th adancmnt a fxed building service llwngntallatn, rplacmnt r altratn th whl r part th ytm, rm th tat

tatc cmpltn t wrkng rdr by ttng and adjutng a ncary t nur thytm a a whl u n mr ul and pwr than ranabl n th crcumtanc,wthut prjudc t th nd t cmply wth halth and aty rqurmnt. fr achytm commissioning nclud ttng-t-wrk, rgulatn (that ttng and adjutngrpttly) t ach th pcd prrmanc, th calbratn, ttng up and ttng th acatd autmatc cntrl ytm, and rcrdng th ytm ttng and thprrmanc tt rult that ha bn accptd a atactry.


77aControlled service or ftting man a rc r ttng n rlatn t whch Part G(hygn), H (dranag and wat dpal), J (cmbutn applanc and ul tragytm), L (cnratn ul and pwr) r P (lctrcal aty) schdul 1 t thBuldng Rgulatn mp a rqurmnt.

27 elace th cmmntary atr paragraph 81 wth:

The use o a consistent set o accredited construction details would be a way o indicatingthe use o the same construction method. More detailed guidance on what constitutes adwelling type is given in the ATTMA Guide see ootnote 22 .

27 Add atr th cmmntary paragraph 81:

81aEnergy efciency requirements man th rqurmnt rgulatn 4, 17, 17and 17e , and Part L schdul 1 t, th Buldng Rgulatn.

28 in ppndx paragraph 5, relace oPM wbt wth Plannng Prtal wbt.

30 in clumn 1 th chdul upprtng cmptnc, relace 2.6 and 2.7

wth 2.7 and 2.8.31 in rw 1.2, clumn 3 (ednc) th chcklt, relace eR = 23.74 wth

eR = 22.74.

34 in clumn 1, relace th hadng Deartment of ransort, Local Government and theegions (DL) and rrnc wth:

Deartment for Communities and Local Government (CLG)

Accredited Construction Details or Part L, 2006.

alabl rm th Plannng Prtal wbt, Part L Associated Documents at:www.plannngprtal.g.uk/apprddcumnt.


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16 elace paragraph 8 t 10 wth:

8 Ltd buldng, buldng n cnratn ara and dgnatd ancnt mnumntha an xmptn rm th energy efciency requirements whr cmplanc wuldunaccptably altr thr charactr r apparanc. Thr ar thr urthr catgr buldng whr pcal cndratn ncuragd:

a. buldng whch ar archtctural and htrcal ntrt and whch ar rrrd t a amatral cndratn n a lcal authrty dlpmnt plan;

b. buldng whch ar archtctural and htrcal ntrt wthn natnal park, ara uttandng natural bauty, rgtrd htrc park and gardn, rgtrdbattlld, th curtlag chduld ancnt mnumnt, and wrld hrtag t;

c. buldng tradtnal cntructn wth prmabl abrc that bth abrb andradly allw th apratn mtur.

9 Whn undrtakng wrk n r n cnnctn wth any buldng wth htrc rarchtctural alu, rrpct rmal ltng r thr rgtratn a wrthy cnratn, th am huld b t mpr nrgy cncy whr and t th xtnt thatt ranabl and practcally pbl. Th prdd that th wrk d nt prjudcth charactr th ht buldng r ncra th rk lng-trm dtrratn thbuldng abrc r ttng. Th gudanc gn by englh Hrtag10 huld b takn ntaccunt n dtrmnng apprprat nrgy prrmanc tandard r uch buldng wrk.Partcular u rlatng t wrk n htrc buldng that warrant ympathtc tratmntand whr adc rm thr culd thrr b bncal nclud:

a. rtrng th htrc charactr a buldng that ha bn ubjct t prunapprprat altratn, .g. rplacmnt wndw, dr and rght;

b. rbuldng a rmr htrc buldng (.g. llwng a r r llng a gap t n atrrac);

c. makng prn nablng th abrc htrc buldng t brath t cntrlmtur and ptntal lng trm dcay prblm.

10 in arrng at a balanc btwn htrc buldng cnratn and ranabl prnr nrgy cncy mprmnt, t wuld b apprprat t tak nt accunt th adc th lcal authrty cnratn cr.


11 U-alu and thrmal brdg prprt hall b calculatd ung th mthd andcnntn t ut n BR 44311, Conventions or U-value calculations, and hall b badn th whl unt (.. n th ca a wndw, th cmbnd prrmanc th glazngand ram).

16 Add paragraph 11a:11a Th U-alu glazng can b calculatd r th actual unt, th mallr th twtandard wndw dnd n Bs e 14351-111a, r th tandard wndw cnguratn tut n BR 44311. sP 2005 Tabl 6 g alu r drnt wndw cnguratn thatcan b ud n th abnc tt data r calculatd alu.


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13a in mt ntanc n rdr t cmply wth th Buldng Rgulatn t wll b ncaryt nty aBCB br th wrk tart thr n th rm a dpt ull plan r by abuldng ntc. in crtan tuatn, hwr, thr prcdur apply:

a. Whr th wrk bng carrd ut by a prn rgtrd wth a rlant cmptntprn l-crtcatn chm ltd n schdul 2 t th Buldng Rgulatn, nadanc ntcatn t thBCB ndd ( paragraph 13b t 13).

b. Whr th wrk nl an mrgncy rpar, .g. t a ald blr r a lakng htwatr cylndr, n accrdanc wth rgulatn 12(7) th Buldng Rgulatn thr n nd t dlay makng th rpar n rdr t mak an adanc ntcatn t thBCB. Hwr, n uch ca t wll tll b ncary r th wrk t cmply wthth rlant rqurmnt and t g a ntc t thBCB at th arlt pprtunty,unl an ntallr rgtrd undr an apprprat cmptnt prn chm carrut th wrk. cmpltn crtcat can thn b ud n th nrmal way.

c. Whr th wrk a mnr natur a dcrbd n th chdul nn-ntablwrk (schdul 2B t th Buldng Rgulatn), th wrk mut tll cmply wth thrlant rqurmnt but nd nt b ntd t thBCB ( paragraph 13 t 13h).


13b it nt ncary t nty aBCB n adanc wrk whch t b carrd ut bya prn rgtrd wth a rlant cmptnt prn l-crtcatn chm ltd nschdul 2 t th Buldng Rgulatn. in rdr t jn uch a chm a prn mutdmntrat cmptnc t carry ut th typ wrk th chm cr, and al thablty t cmply wth all rlant rqurmnt n th Buldng Rgulatn.

13c Whr wrk carrd ut by a prn rgtrd wth a cmptnt prn chm,rgulatn 16 th Buldng Rgulatn 2000 and rgulatn 11 th Buldng (pprd

inpctr tc) Rgulatn 2000 rqur that th ccupr th buldng b gn, wthn30 day th cmpltn th wrk, a crtcat cnrmng that th wrk cmpl ullywth all applcabl buldng rgulatn rqurmnt. Thr al a rqurmnt t g thBCB a ntc th wrk carrd ut, agan wthn 30 day th cmpltn th wrk.Th crtcat and ntc ar uually mad aalabl thrugh th chm pratr.

13dBCBs ar authrd t accpt th crtcat and ntc a dnc cmplanc wth th rqurmnt th Buldng Rgulatn. Lcal authrty npctnand nrcmnt pwr rman unactd, althugh thy ar nrmally ud nly nrpn t a cmplant that wrk d nt cmply.

13e lt authrd cmptnt prn l-crtcatn chm rlatng t th energyefciency requirements n xtng dwllng can b und at: www.cmmunt.g.uk/plannngandbuldng/buldngrgulatn.

Work which need not be notied

13f schdul 2B t th Buldng Rgulatn t ut th typ wrk whr thr n rqurmnt t nty aBCB that wrk t b carrd ut. Th typ wrk armanly a mnr natur whr thr n gncant rk t halth, aty r nrgycncy. t that th halth, aty and energy efciency requirements cntnu tapply t th typ wrk, and that nly th nd t nty aBCB ha bn rmd. inaddtn, whr nly nn-ntabl wrk carrd ut by a mmbr a cmptnt prnl-crtcatn chm thr n rqurmnt r a crtcat buldng rgulatncmplanc t b gn t th ccupr r thBCB.


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13g Th typ nn-ntabl wrk n schdul 2B rlant t th energy efciencyrequirements th Rgulatn ar:

a. n a hatng, ht watr rc, ntlatn r ar-cndtnng ytm, th rplacmnt

any part whch nt a cmbutn applanc (uch a a radatr, al r pump) rth addtn an utput dc (uch a a radatr r an) r th addtn a cntrldc (uch a a thrmtatc radatr al). Hwr, th wrk wll rman ntablwhnr cmmnng pbl and ncary t nabl a ranabl u uland pwr ( paragraph 36 t 38d);

b. th ntallatn a tand-aln, l-cntand xd hatng, ht watr, ntlatn rar-cndtnng rc. such rc mut cnt nly a ngl applanc and anyacatd cntrl, and mut nt b cnnctd t, r rm part , any thr fxedbuilding service. exampl nn-ntabl rc wuld b a xd lctrc hatr,a mchancal xtractr an n a ktchn r bathrm, and a rm ar-cndtnng unt.Hwr, any th llwng apply, th wrk wll rman ntabl buldng wrk:

. th rc a cmbutn applanc;

. any lctrcal wrk acatd wth th ntallatn ntabl;

. cmmnng pbl and wuld act th rc nrgy cncy (paragraph 36 t 38d);

. n th ca a ntlatn applanc, th applanc ntalld n a rm cntannga natural draught pn-ud cmbutn applanc r rc, uch a a ga rwhch u a chmny a t u.

13h schdul 2B al t ut what typ lctrcal ntallatn wrk n dwllng arnn-ntabl. full nrmatn n th gn n pprd cumnt P.

16 Add tnt 11a:


17 elace th cmmntary atr ub-paragraph c. paragraph 18 wth:

Individual elements are defned as those areas o the given element type that havethe same construction details. The provisions in sub-paragraph c. are to minimisecondensation risk in localised parts o the envelope.

17 elace nt 1 at th t Tabl 1 wth:

1 Th U-alu r r wndw and rght n th tabl ar bad n th U-aluhang bn ad wth th r wndw r rght n th rtcal ptn. i apartcular unt ha bn ad n a plan thr than th rtcal, th tandard gn nth pprd cumnt huld b mdd by makng an adjutmnt that dpndntn th lp th unt llwng th gudanc gn n BR 44311.

18 Add atr conservatory n paragraph 22 r ubtantally glazd xtnn.18 Change th hadng ab paragraph 25 t MTeRiL HGe of Use HGe

of eeRGY sTTUs.

18 elace ub-paragraph . paragraph 27 wth:

. Whr an xtng wndw (ncludng r wndw r rght) r dr whch parata cndtnd pac rm an uncndtnd pac r th xtrnal nrnmnt ha aU-alu that wr than 3.3W/m2.K, t llw th gudanc n paragraph 32 t 34.

20 in th lat ln th cmmntary llwng ub-paragraph a.. paragraph 35, relaceapplanc rpctly gn n L1 wth applanc rpctly gn n sP 2005Tabl 12.


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Commissioning of xed building services

36 Paragraph L1(b)() schdul 1 t th Buldng Rgulatn rqur fxed buildingservices t b cmmnd by ttng and adjutmnt a ncary t nur thatthy u n mr ul and pwr than ranabl n th crcumtanc. in rdr tdmntrat that th hatng and ht watr ytm ha bn adquatly cmmnd,rgulatn 20 tat:



(2) Whr th rgulatn appl th prn carryng ut th wrk hall, r th purp nurng cmplanc wth paragraph L1(b) schdul 1, g t th lcal authrty a

ntc cnrmng that th xd buldng rc ha bn cmmnd n accrdancwth a prcdur apprd by th scrtary stat.

(3) Th ntc hall b gn t th lcal authrty:

a. nt latr than th dat n whch th ntc rqurd by rgulatn 15(4) rqurd t bgn; r



37 t all fxed building services wll nd t b cmmnd. Wth m ytmadjutmnt nt pbl a th nly cntrl ar n and wtch. exampl th wuld b m mchancal xtractn ytm r ngl xd lctrcal hatr. in

thr cacommissioning

wuld b pbl but n th pcc crcumtanc wuldha n ct n nrgy u.


38 Whr commissioning carrd ut t mut b dn n accrdanc wth a prcdurapprd by th scrtary stat. fr hatng and ht watr ytm th apprdprcdur ar t ut n th mtc Hatng mplanc Gud. fr ar-cndtnngand mchancal ntlatn ytm th apprd prcdur t llw th manuacturrntructn.

38aCommissioning tn carrd ut by th prn wh ntall th ytm. in thrca t may b carrd ut by a ubcntractr r by a pcalt rm. it mprtant thatwhr carr t ut llw th rlant apprd prcdur.

38b Whr a buldng ntc r ull plan ha bn gn t a lcal authrty BCB thntc cmpltn commissioning huld b gn t thatBCB wthn day thcmpltn th cmmnng wrk. in thr ca, r xampl whr wrk carrdut by a prn rgtrd wth a cmptnt prn chm ( paragraph 5a), t mut bgn wthn 30 day.

38c Whr an apprd npctr th BCB th ntc cmpltn commissioninghuld gnrally b gn t th apprd npctr wthn day th cmpltn wrk. Hwr, whr th wrk carrd ut by a prn rgtrd wth a cmptntprn chm ( paragraph 5a) th ntc mut b gn wthn 30 day. Whr thntallatn xd buldng rc whch rqur commissioning carrd ut by aprn rgtrd wth a cmptnt prn chm th ntc cmmnng wll bgn by that prn.

38d Untl th BB rc th cmmnng ntc t cannt b ranably atdthat Part L ha bn cmpld wth and cnquntly unlkly t b abl t g acmpltn/nal crtcat.


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21 in th rt tw rw Tabl 3, clumn 2, hadd performance, relace ltr/.W wthW/(l/).

21 Delete rm th urth ln paragraph 45 th gratr .

21 t th nd ub-paragraph a. paragraph 45, relace r wth and.

22 elace ub-paragraph a., th cmmntary and ub-paragraph b. paragraph 53 wth:

a. adpt dgn dtal uch a th t ut nAccredited Construction Details or PartL21; r

A list o additional accredited details may be provided in due course.

b. t dmntrat that th pcd dtal prd adquat prtctn agant uraccndnatn ung th gudanc n BRe iP 1/0622 and BR 49722a.



22 Add tnt 22a:

22a BR 497 Conventions or calculating linear transmittance and temperature transmittanceactors, BRe, 2007.

23 t th nd ub-paragraph b. paragraph 56 delete and t b upgradd.

24 elace th cmmntary atr paragraph 59 wth This inormation could be included inHome Inormation Packs.


65aChange to a buildings energy status man any chang whch rult n a buldngbcmng a buldng t whch th energy efciency requirements th Buldng

Rgulatn apply, whr pruly t wa nt.

65a Commissioning man th adancmnt a fxed building service llwngntallatn, rplacmnt r altratn th whl r part th ytm, rm th tat tatc cmpltn t wrkng rdr by ttng and adjutng a ncary t nur thytm a a whl u n mr ul and pwr than ranabl n th crcumtanc,wthut prjudc t th nd t cmply wth halth and aty rqurmnt. fr achytm commissioning nclud ttng-t-wrk, rgulatn (that ttng and adjutngrpttly) t ach th pcd prrmanc, th calbratn, ttng up and ttng th acatd autmatc cntrl ytm, and rcrdng th ytm ttng and thprrmanc tt rult that ha bn accptd a atactry.


66a Controlled service or ftting man a rc r ttng n rlatn t whch Part G(hygn), H (dranag and wat dpal), J (cmbutn applanc and ul tragytm), L (cnratn ul and pwr) r P (lctrcal aty) schdul 1 t thBuldng Rgulatn mp a rqurmnt.

25 Add atr paragraph 70 th cmmntary:

Examples o decorative fnishes are paint and wallpaper etc that add no appreciablethermal resistance, and thin polymer oam sheeting or decorators to apply under wallpaperto reduce condensation risk. Dry-lining and external renders are not decorative fnishesbecause they add thermal resistance.


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30 in clumn 1, relace th hadng Deartment of ransort, Local Government and theegions (DL) and rrnc wth:

Deartment for Communities and Local Government



30 in clumn 1, relace th hadng BS (on behalf of Dp) and rrnc wth:

BS (on behalf of CLG)

www.thebuildingregs.com

Domestic Heating Compliance Guide, 2nd dtn, cmbr 2008.

isB 978 1 85946 279 9


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11 elace th man part paragraph 4 wth:

4 i a buldng cntan bth lng accmmdatn and pac t b ud r cmmrcalpurp (r xampl wrkhp r c), th whl buldng huld b tratd a adwelling a lng a th cmmrcal part culd rrt t dmtc u. Th culd b thca , r xampl:

11 Add t th cmmntary atr paragraph 4:

Similarly, the existence o a room used as an ofce or utility space within a dwelling wouldnot mean that the building should not be treated as a dwelling.

12 Add t th cmmntary atr paragraph 8:

The calculations required as part o the procedure used to show compliance with thiscriterion can also provide the inormation needed to prepare the Energy PerormanceCertifcate required by regulation 17E o the Building Regulations 2000 and by the Energy

Perormance o Buildings Regulations 2007 (SI 2007/1669).



17a in almt all ca cntructng nw buldng thr than dwllng t wll bncary t nty aBCB n adanc any wrk tartng xcpt a t ut n paragraph17b t 17 blw.


17b it nt ncary t nty aBCB n adanc wrk whch t b carrd ut bya prn rgtrd wth a rlant cmptnt prn l-crtcatn chm ltd nschdul 2 t th Buldng Rgulatn. in rdr t jn uch a chm a prn mut

dmntrat cmptnc t carry ut th typ wrk th chm cr, and al thablty t cmply wth all rlant rqurmnt n th Buldng Rgulatn.

17c Whr wrk carrd ut by a prn rgtrd wth a cmptnt prn chm,rgulatn 16 th Buldng Rgulatn 2000 and rgulatn 11 th Buldng(pprd inpctr tc) Rgulatn 2000 rqur that th ccupr th buldngb gn, wthn 30 day th cmpltn th wrk, a crtcat cnrmng that thwrk cmpl ully wth all applcabl buldng rgulatn rqurmnt. Thr al arqurmnt t g thBCB a ntc th wrk carrd ut, agan wthn 30 day thcmpltn th wrk. Th crtcat and ntc ar uually mad aalabl thrughth chm pratr.

17dBCBs ar authrd t accpt th crtcat and ntc a dnc cmplanc wth th rqurmnt th Buldng Rgulatn. Lcal authrty npctnand nrcmnt pwr rman unactd, althugh thy ar nrmally ud nly n

rpn t a cmplant that wrk d nt cmply.

17e lt authrd cmptnt prn l-crtcatn chm rlatng t th nrgycncy rqurmnt n nw buldng thr than dwllng can b und at:www.cmmunt.g.uk/plannngandbuldng/buldngrgulatn.

13 in th lat ln ub-paragraph . paragraph 22, relace sBeM7 wth NCMModelling Guide7.

13 elace tnt 7 wth NCM Modelling Guide, aalabl rm www.cmmunt.g.uk.


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20D.(1) subjct t paragraph (4), whr rgulatn 17 appl th prn carryng ut thwrk hall g th lcal authrty a ntc whch pc:

a. th targt o2

mn rat r th buldng; and

b. th calculatd o2

mn rat r th buldng a cntructd.

(2) Th ntc hall b gn t th lcal authrty nt latr than day atr th wrkha bn cmpltd.

(3) lcal authrty authrd t accpt, a dnc that th rqurmnt rgulatn 17 wuld b atd th buldng wr cntructd n accrdanc wth anaccmpanyng lt pccatn, a crtcat t that ct by an nrgy ar adnd n rgulatn 17J wh accrdtd t prduc uch crtcat r that catgry buldng.

(4) Whr uch a crtcat gn t th lcal authrty:

a. paragraph (1) d nt apply; andb. th prn carryng ut th wrk hall prd t th lcal authrty nt latr than

day atr th wrk ha bn cmpltd a ntc whch:

. tat whthr th buldng ha bn cntructd n accrdanc wth th lt pccatn whch accmpand th crtcat; and

. t ha nt, lt any chang t th pccatn t whch th buldng ha bncntructd.


27 Whr uch a crtcat gn t thBCB th prn carryng ut th wrk hallprd t thBCB, nt latr than day atr th cmpltn th wrk (r, whr anapprd npctr thBCB and th buldng ccupd br cmpltn, nt latrthan th dat th ntal ntc wuld xpr) a ntc whch:

a. tat whthr th buldng ha bn cntructd n accrdanc wth th lt pccatn whch accmpand th crtcat; and

b. t ha nt, lt any chang t th pccatn t whch th buldng ha bncntructd.

27a it wuld b uul t bth th buldr and thBCB th buldr carr ut aprlmnary calculatn br cntructn tart bad n plan and pccatn. Thcalculatn wll g an ndcatn whthr a dgn cmplant and wll prduc a lt th atur th dgn that ar crtcal t achng cmplanc.

BCBs may ask or this inormation as part o the process o checking compliance.

16 elace paragraph 35 wth:35 U-alu and thrmal brdg prprt hall b calculatd ung th mthd andcnntn t ut n BR 44310, Conventions or U-value calculations, and hall b badn th whl unt (.. n th ca a wndw, th cmbnd prrmanc th glazngand ram).

16 Add paragraph 35a:

35a Th U-alu glazng can b calculatd r th actual unt, th mallr th twtandard wndw dnd n Bs e 14351-110a, r th tandard wndw cnguratnt ut n BR 44310. fr dmtc-typ cntructn, sP 2005 Tabl 6 g alu rdrnt wndw cnguratn that can b ud n th abnc tt data r calculatdalu.

16 Add tnt 10a:10a e 14351-1:2006 Windows and doors. Product standard, perormance characteristics.


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17 Delete paragraph 37.



18 in ln 4 paragraph 39 relace Tso publcatn n rbut cntructn dtal13 wthAccredited Construction Details or Part L13.



22 in ub-paragraph a.. paragraph 69, relace Limiting thermal bridging and air leakagewth Accredited Construction Details or Part L13.


b. t dmntrat that th pcd dtal prd adquat prtctn agant uraccndnatn ung th gudanc n BRe iP 1/0628 and BR 49728a.


27 Design guide or metal roofng and cladding to comply with UK Building Regulations,2006, MRM. alabl rm www.mcrma.c.uk.

22 Add tnt 28a:

28a BR 497 Conventions or calculating linear thermal transmittance and temperatureactors, BRe, 2007.

23/24 Delete th cnd ntnc paragraph 76, ub-paragraph a., th cmmntary and ub-paragraph b. paragraph 76.

23/24 Add atr paragraph 76 th cmmntary:

I the measured air permeability on re-test is greater than the design air permeabilitybut less than the limiting value o 10m3/(h.m2) then other improvements will be requiredto achieve the TER. This means that builders would be unwise to claim a design airpermeability better than 10 unless they are confdent o achieving the improved value.


77 Paragraph L1(b)() schdul 1 t th Buldng Rgulatn rqur fxed buildingservices t b cmmnd by ttng and adjutmnt a ncary t nur that thy

u n mr ul and pwr than ranabl n th crcumtanc.24 elace rgulatn 20 wth:


(2) Whr th rgulatn appl th prn carryng ut th wrk hall, r th purp nurng cmplanc wth paragraph L1(b) schdul 1, g t th lcal authrty antc cnrmng that th xd buldng rc ha bn cmmnd n accrdancwth a prcdur apprd by th scrtary stat.


a. nt latr than th dat n whch th ntc rqurd by rgulatn 15(4) rqurd t bgn; r



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78 t all xd buldng rc wll nd t b cmmnd. Wth m ytm t ntpbl a th nly cntrl ar n and wtch. exampl th wuld b m

mchancal ntlatn ytm r ngl xd lctrcal hatr. in thr ca commissioningwuld b pbl but n th pcc crcumtanc wuld ha n ct n nrgy u.


79 Whr commissioning carrd ut t mut b dn n accrdanc wth prcdurapprd by th scrtary stat cmprng:

a. th iBse mmnng d M: mmnng Managmnt30; and

This provides guidance on the overall process and includes a schedule o all the relevantguidance documents relating to the commissioning o specifc building services systems.

b. th prcdur r lakag ttng ductwrk gn n paragraph 80 and 81.

79aCommissioning mut b carrd ut n uch a way a nt t prjudc cmplanc wthany applcabl halth and aty rqurmnt.

79bCommissioning tn carrd ut by th prn wh ntall th ytm. smtmt may b carrd ut by a ubcntractr r n by a pcalt rm. it mprtant thatwhr carr t ut llw th rlant apprd prcdur.

otice of comletion of commissioning

79c Th Buldng Rgulatn (rgulatn 20(2)) and th Buldng (pprd inpctrtc) Rgulatn (rgulatn 12(2)) rqur that a ntc b gn t th rlantBCB thatcommissioning ha bn carrd ut accrdng t a prcdur apprd by th scrtary stat.

79d Th ntc huld nclud a dclaratn cnrmng that:

a. a cmmnng plan ha bn llwd that ry ytm ha bn npctd andcmmnd n an apprprat qunc and t a ranabl tandard; and

b. th rult tt cnrm that th prrmanc ranably n accrdanc wth thactual buldng dgn, ncludng wrttn cmmntar whr xcurn ar prpdt b accptd.

It would be helpul to BCBs i such declarations were to be signed by someone suitablyqualifed by relevant training and experience. A way o achieving this would be to employ amember o the Commissioning Specialists Association or the Commissioning Group o theHVCA in respect o HVAC systems, or a member o the Lighting Industry CommissioningScheme in respect o fxed internal or external lighting.

79e Whr a buldng ntc r ull plan ha bn gn t a lcal authrty th ntchuld b gn wthn day th cmpltn th cmmnng wrk; n thr

ca, r xampl whr wrk carrd ut by a prn rgtrd wth a cmptntprn chm, t mut b gn wthn 30 day.

79f Whr an apprd npctr thBCB th ntc huld gnrally b gn wthn day th cmpltn th cmmnng wrk. Hwr, whr th wrk carrd utby a prn rgtrd wth a cmptnt prn chm th ntc mut b gn wthn30 day. Whr th ntallatn fxed building services whch rqur commissioning carrd ut by a prn rgtrd wth a cmptnt prn chm th ntc cmmnng wll b gn by that prn.

79g Untl th BB rc th cmmnng ntc t cannt b ranably atd thatPart L ha bn cmpld wth and cnquntly unlkly t b abl t g a cmpltn/nal crtcat.


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24 Add th nw cmmntary atr ub-paragraph b. paragraph 80:

DW/143 does not call or any testing o low pressure ductwork. However, where the builderis claiming the low pressure ductwork will be less leaky than the normal DW/144 allowance

to achieve an improved BER, this better standard should be demonstrated by testing usingthe procedures set out or medium pressure ductwork.

25 elace th ttl rtrn 5 wth:

pISIS F GY FFICI pAI F H BILDIG

27 Add paragraph 90a and 90b:

90a Commissioning man th adancmnt a fxed building service llwngntallatn, rplacmnt r altratn th whl r part th ytm, rm th tat tatc cmpltn t wrkng rdr by ttng and adjutng a ncary t nur thytm a a whl u n mr ul and pwr than ranabl n th crcumtanc,wthut prjudc t th nd t cmply wth halth and aty rqurmnt. fr achytm commissioning nclud ttng-t-wrk, rgulatn (that ttng and adjutngrpttly) t ach th pcd prrmanc, th calbratn, ttng up and ttng th acatd autmatc cntrl ytm, and rcrdng th ytm ttng and thprrmanc tt rult that ha bn accptd a atactry.

90bControlled service or ftting man a rc r ttng n rlatn t whch Part G(hygn), H (dranag and wat dpal), J (cmbutn applanc and ul tragytm), L (cnratn ul and pwr) r P (lctrcal aty) schdul 1 t thBuldng Rgulatn mp a rqurmnt.

27 in ln 6 ub-paragraph b. paragraph 91, rplac culd b ncrad wth huldb ncrad.

29 in ppndx , paragraph 5, relace oPM wth LG.

31 in rw 3.1, clumn 2, remove qutn mark rm th nd th ntry.33 in clumn 2, relace th hadngDeartment of ransort, Local Government and the

egions (DL) and rrnc wth:

Deartment for Communities and Local Government (CLG)



33 in clumn 2, relace th rrnc undr th hadng etal Cladding and oonganufacturers Association wth:

Design guide or metal roofng and cladding to comply with UK Building Regulations, 2006.

alabl rm www.mcrma.c.uk.


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8 Ltd buldng, buldng n cnratn ara and dgnatd ancnt mnumntha an xmptn rm th energy efciency requirements whr cmplanc wuldunaccptably altr thr charactr r apparanc. Thr ar thr urthr catgr buldng whr pcal cndratn ncuragd:

a. buldng whch ar archtctural and htrcal ntrt and whch ar rrrd t a amatral cndratn n a lcal authrty dlpmnt plan;

b. buldng whch ar archtctural and htrcal ntrt wthn natnal park, ara uttandng natural bauty, rgtrd htrc park and gardn, rgtrdbattlld, th curtlag chduld ancnt mnumnt, and wrld hrtag t;

c. buldng tradtnal cntructn wth prmabl abrc that bth abrb andradly allw th apratn mtur.

9 Whn undrtakng wrk n r n cnnctn wth any buldng wth htrc rarchtctural alu, rrpct rmal ltng r thr rgtratn a wrthy cnratn, th am huld b t mpr nrgy cncy whr and t th xtnt thatt ranabl and practcally pbl. Th prdd that th wrk d nt prjudcth charactr th ht buldng r ncra th rk lng-trm dtrratn thbuldng abrc r ttng. Th gudanc gn by englh Hrtag10 huld b takn ntaccunt n dtrmnng apprprat nrgy prrmanc tandard r uch buldng wrk.Partcular u rlatng t wrk n htrc buldng that warrant ympathtc tratmntand whr adc rm thr culd thrr b bncal nclud:

a. rtrng th htrc charactr a buldng that ha bn ubjct t prunapprprat altratn, .g. rplacmnt wndw, dr and rght;

b. rbuldng a rmr htrc buldng (.g. llwng a r r llng a gap t n atrrac);

c. makng prn nablng th abrc htrc buldng t brath t cntrlmtur and ptntal lng-trm dcay prblm.

10 in arrng at a balanc btwn htrc buldng cnratn and ranabl prnr nrgy cncy mprmnt, t wuld b apprprat t tak nt accunt th adc th lcal authrty cnratn cr.


11 Th U-alu wndw, r wndw, rght and dr hall b calculatd ungth mthd and cnntn t ut n BR 44311, Conventions or U-value calculations,and hall b bad n th whl unt (.. n th ca a wndw, th cmbndprrmanc th glazng and ram).

16 Add paragraph 11a:11a Th U-alu glazng can b calculatd r th actual unt, th mallr th twtandard wndw dnd n Bs e 14351-111a, r th tandard wndw cnguratnt ut n BR 44311. fr dmtc-typ cntructn, sP 2005 Tabl 6 g alu rdrnt wndw cnguratn that can b ud n th abnc tt data r calculatdalu.

16 elace rght n ln 1 paragraph 12 wth rght12a.

16 Add tnt 11a:



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13a in mt ntanc n rdr t cmply wth th Buldng Rgulatn t wll b ncaryt nty aBCB br th wrk tart, thr n th rm a dpt ull plan r by abuldng ntc. in crtan tuatn, hwr, thr prcdur apply:

a. Whr th wrk bng carrd ut by a prn rgtrd wth a rlant cmptntprn l-crtcatn chm ltd n schdul 2 t th Buldng Rgulatn, nadanc ntcatn t thBCB ndd ( paragraph 13b t 13).

b. Whr th wrk nl an mrgncy rpar, .g. t a ald blr r a lakng htwatr cylndr, n accrdanc wth rgulatn 12(7) th Buldng Rgulatn thr n nd t dlay makng th rpar n rdr t mak an adanc ntcatn t thBCB. Hwr, n uch ca t wll tll b ncary r th wrk t cmply wthth rlant rqurmnt and t g a ntc t thBCB at th arlt pprtunty,unl an ntallr rgtrd undr an apprprat cmptnt prn chm carrut th wrk. cmpltn crtcat can thn b ud n th nrmal way.

c. Whr th wrk a mnr natur a dcrbd n th chdul nn-ntabl wrk(schdul 2B t th Buldng Rgulatn), th wrk mut tll cmply wth th rlantrqurmnt but nd nt b ntd t thBCB ( paragraph 13b t 13).


13b it nt ncary t nty aBCB n adanc wrk whch t b carrd ut bya prn rgtrd wth a rlant cmptnt prn l-crtcatn chm ltd nschdul 2 t th Buldng Rgulatn. in rdr t jn uch a chm, a prn mutdmntrat cmptnc t carry ut th typ wrk th chm cr, and al thablty t cmply wth all rlant rqurmnt n th Buldng Rgulatn.

13c Whr wrk carrd ut by a prn rgtrd wth a cmptnt prn chm,rgulatn 16 th Buldng Rgulatn 2000 and rgulatn 11 th Buldng (pprd

inpctr tc) Rgulatn 2000 rqur that th ccupr th buldng b gn, wthn30 day th cmpltn th wrk, a crtcat cnrmng that th wrk cmpl ullywth all applcabl buldng rgulatn rqurmnt. Thr al a rqurmnt t g thBCB a ntc th wrk carrd ut, agan wthn 30 day th cmpltn th wrk.Th crtcat and ntc ar uually mad aalabl thrugh th chm pratr.

13dBCBs ar authrd t accpt th crtcat and ntc a dnc cmplanc wth th rqurmnt th Buldng Rgulatn. Lcal authrty npctnand nrcmnt pwr rman unactd, althugh thy ar nrmally ud nly nrpn t a cmplant that wrk d nt cmply.

13e lt authrd cmptnt prn l-crtcatn chm rlatng t thenergy efciency requirements n xtng buldng thr than dwllng can b und at:www.cmmunt.g.uk/plannngandbuldng/buldngrgulatn.

Work where building control bodies need not be notied

13f schdul 2B t th Buldng Rgulatn t ut th typ wrk whr thr n rqurmnt t nty aBCB that wrk t b carrd ut. Th typ wrk armanly a mnr natur whr thr n gncant rk t halth, aty r nrgycncy. t that th halth, aty and energy efciency requirements cntnu tapply t th typ wrk, and that nly th nd t nty aBCB ha bn rmd. inaddtn, whr nly nn-ntabl wrk carrd ut by a mmbr a cmptnt prnl-crtcatn chm thr n rqurmnt r a crtcat buldng rgulatncmplanc t b gn t th ccupr r thBCB.


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13g Th typ nn-ntabl wrk n schdul 2B rlant t th energy efciencyrequirements th Rgulatn ar:

a. n a hatng, ht watr rc, ntlatn r ar-cndtnng ytm, th rplacmnt

any part whch nt a cmbutn applanc (uch a a radatr, al r pump) rth addtn an utput dc (uch a a radatr r an) r th addtn a cntrldc (uch a a thrmtatc radatr al). Hwr, th wrk wll rman ntablwhnr commissioning pbl and ncary t nabl a ranabl u uland pwr ( paragraph 70 t 74g);

b. th ntallatn a tand-aln, l-cntand xd hatng, ht watr, ntlatn rar-cndtnng rc. such rc mut cnt nly a ngl applanc and anyacatd cntrl, and mut nt b cnnctd t, r rm part , any thr fxedbuilding service. exampl nn-ntabl rc wuld b a xd lctrc hatr,a mchancal xtractr an n a ktchn r bathrm, and a rm ar-cndtnng unt.Hwr, any th llwng apply, th wrk wll rman ntabl buldng wrk:

. th rc a cmbutn applanc;

. any lctrcal wrk acatd wth th ntallatn ntabl;

. commissioning pbl and wuld act th rc nrgy cncy (paragraph 70 t 74g);

. n th ca a ntlatn applanc, th applanc ntalld n a rm cntannga natural draught pn-ud cmbutn applanc r rc, uch a a ga rwhch u a chmny a t u.

13h schdul 2B al t ut what typ lctrcal ntallatn wrk n dwllng arnn-ntabl. full nrmatn n th gn n pprd cumnt P.

18 elace 19 wth 17 n ln 2 th cmmntary at th tp Tabl 1.

18 elace oPM wth LG n ln 5 . 8 Tabl 1.

19 elace ub-paragraph b.. paragraph 23 wth:

. th lar gan pr unt r ara aragd r th prd 06.30 t 16.30 slar Tm(GMT) nt gratr than 25W/m2 whn th buldng ubjct t th lar rradancr July a gn n th tabl dgn rradanc n iBse gn Gud .

19 elace th 2nd ntnc th cmmntary atr ub-paragraph b.. paragraph 23 wth:

CIBSE TM3715 section 5.1 gives guidance on calculating solar gains, and sections 4.4 and4.5 give guidance on the eective g-value.

21 Delete th nal ntnc th cmmntary atr ub-paragraph c. paragraph 29.

21 in ln 7 paragraph 30 delete 26 and 27 and relace wth 26 t 28.

21 Delete th nal ntnc th cmmntary atr paragraph 31.




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22 in th lat ln ub-paragraph c. paragraph 32, relace Tabl 3 wth Tabl 6.

22 xtend th grn backgrund t nclud ub-paragraph j. paragraph 34.

22 in th lat ln paragraph 35, relace paragraph 25 wth paragraph 36.

22 Rplac ub-paragraph d. and . paragraph 36 wth:

d. Whr any thrmal lmnt bng rtand, t upgrad t llwng th gudanc nparagraph 87 and 88.

. Whr an xtng wndw (ncludng r wndw r rght) r dr whch parata cndtnd pac rm an uncndtnd pac r th xtrnal nrnmnt ha aU-alu that wr than 3.3W/m2.K, t llw th gudanc n paragraph 75 t 78unl t a display window rhigh usage entrance door. it wuld b ranabl nth lattr ca t mak m lr prn r nrgy cncy.

25 in th cmmntary llwng paragraph 62, relace Table 5 wth Table 4.

26 in Tabl 4 rw (b), delete ntral mchancal ntlatn wth hatng and clng.

26 tr paragraph 69, add th cmmntary:

Following implementation o the Energy Services Directive, there are likely to be legalobligations or persons commissioning building work in existing buildings with oor areas inexcess o 1000m2 to notiy their intentions to energy supply companies.


Commissioning of xed building services

70 Part L1(b)() schdul 1 t th Buldng Rgulatn rqur fxed building servicest b cmmnd by ttng and adjutmnt a ncary t nur that thy u nmr ul and pwr than ranabl n th crcumtanc.


20C(1) Th rgulatn appl t buldng wrk n rlatn t whch paragraph L1(b) schdul 1 mp a rqurmnt, but d nt apply t th prn r xtnn anyxd buldng rc whr ttng and adjutmnt nt pbl r wuld nt act thnrgy cncy that xd buldng rc.

(2) Whr th rgulatn appl th prn carryng ut th wrk hall, r th purp nurng cmplanc wth paragraph L1(b) schdul 1, g t th lcal authrty antc cnrmng that th xd buldng rc ha bn cmmnd n accrdancwth a prcdur apprd by th scrtary stat.


a. nt latr than th dat n whch th ntc rqurd by rgulatn 15(4) rqurd t b

gn; r



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22

Aroved Document L2B: Conservation of fuel and ower (2006 edition).

page Change


71 t all fxed building services wll nd t b cmmnd. Wth m ytm t nt pbl a th nly cntrl ar n and wtch. exampl th wuld

b m mchancal xtractn ytm r ngl xd lctrcal hatr. in thr cacommissioning wuld b pbl but n th pcc crcumtanc wuld ha n ctn nrgy u.


72Commissioning mut b carrd ut n uch a way a nt t prjudc cmplanc wthany applcabl halth and aty rqurmnt.

73 in xtng buldng thr than dwllng commissioning mt tn carrd ut byth prn wh ntall th ytm. smtm t may b carrd ut by a ubcntractr rby a pcalt rm. it mprtant that whr carr t ut llw th rlant apprdprcdur.

otice of comletion of commissioning74 Th Buldng Rgulatn (rgulatn 20(2)) and th Buldng (pprd inpctrtc) Rgulatn (rgulatn 12(2)) rqur that a ntc b gn t th rlantBCB thatcommissioning ha bn carrd ut accrdng t a prcdur apprd by th scrtary stat.

74a Th prcdur apprd by th scrtary stat t ut n:

a. iBse mmnng d M n mmnng Managmnt23; and

This provides guidance on the overall process and includes a schedule o all the relevantguidance documents relating to the commissioning o specifc building services systems.

b. r lakag ttng ductwrk, paragraph 74 and 74g.

74b Whr a buldng ntc r ull plan ha bn gn t aBCB th ntc huldb gn wthn day th cmpltn th cmmnng wrk. in thr ca,r xampl whr wrk carrd ut by a prn rgtrd wth a cmptnt prnchm, t mut b gn wthn 30 day.

74c Whr an apprd npctr thBCB,th ntc huld gnrally b gn wthn day th cmpltn th cmmnng wrk. Hwr, whr th wrk carrdut by a prn rgtrd wth a cmptnt prn chm ( paragraph 13b t 13)th ntc mut b gn wthn 30 day.

74d Whr th ntallatn fxed building services whch rqur commissioning carrd ut by a prn rgtrd wth a cmptnt prn chm th ntc cmmnng wll b gn by that prn.

74e Untl thBCB rc th cmmnng ntc t cannt b ranably atd

that Part L ha bn cmpld wth and cnquntly unlkly t b abl t g acmpltn/ nal crtcat.

Membership o the Commissioning Specialists Association or the Commissioning groupo the HVCA may be a way o demonstrating suitability to sign the report in respect othe HVAC systems. For lighting control systems, suitability may be demonstrated byaccreditation under the Lighting Industry Commissioning Scheme.

74f uctwrk lakag ttng huld b carrd ut n nw r rurbhd ductng whrpractcabl n accrdanc wth th prcdur t ut n Hv W/14324 n ytmrd by an wth a dgn w rat gratr than 1m3/ and r th ctn ductwrk whr th prur cla uch that W/143 rcmmnd ttng.

Membership o the HVCA specialist ductwork group or the Association o DuctworkContractors and Allied Services could be a way o demonstrating suitable qualifcations or

this testing work.

74g i a ductwrk ytm al t mt th lakag tandard, rmdal wrk huld bcarrd ut a ncary t ach atactry prrmanc n r-tt and urthrductwrk ctn huld b ttd a t ut n W/143.


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page Change

27 Add at th nd paragraph 75:

i a wndw, pdtran dr r rght nlargd r a nw n cratd, thn th ara wndw and pdtran dr and rght xprd a a prcntag th ttal

r ara th buldng huld nt xcd th rlant alu rm Tabl 2.

27 Change th ntry r pdtran dr n Tabl 5 t:

Fitting (a) Standard for newttings in extensions

(b) Standard forrelacement ttings in anexisting building

Pdtran dr whr thdr ha mr than 50% t ntrnal ac ara glazd

2.2 2.2 r th whl unt oR

1.2 cntr pan

27 Add thr rw t th nd Tabl 5:

Fitting (a) Standard for new

ttings in extensions

(b) Standard for

relacement ttings in anexisting building

Platc rght4 2.2 2.2

urtan wallng s paragraph 78 s paragraph 78

othr dr 3.0 3.0

28 Add th cmmntary atr paragraph 78:

Th man that th ara curtan wallng t b 60% glazd and 40% paqu, thU-alu tandard huld b 0.9 + 1.3 0.6 = 1.7W/m2.K.

29 Delete th cmmntary ab paragraph 79.

29 elace ub-paragraph a. paragraph 84 wth:

a. fr dmtc tyl cntructn, t adpt dgn dtal uch a th t ut nAccredited Construction Details or Part L 200627;


27Accredited Construction Details or Part L,LG, 2006.

30 elace ub-paragraph c. paragraph 84 wth:

c. n altrnat wuld b t dmntrat that th pcd dtal prd adquatprtctn agant urac cndnatn ung th gudanc n BR 49729a.


28 Design guide or metal roofng and cladding to comply with UK Building Regulations ,MRM, 2006. alabl rm www.mcrma.c.uk.

30 Add tnt 29a:

29a BRe Rprt BR 497 Conventions or Calculating Linear Thermal Transmittance andTemperature Factors, 2007.

30 Delete rm ln 2 ub-paragraph b. paragraph 87 and t b upgradd.

30 in Tabl 7, change th ntry n clumn (b) r caty wall t 0.55.

30 in Tabl 7, change th ntry n clumn (a) r r t 0.70.


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rwn pyrght, 2010

pyrght n th typgraphcal arrangmnt rt wth th rwn. Th publcatn, xcludng lg,may b rprducd r charg n any rmat r mdum r rarch, prat tudy r r ntrnalcrculatn wthn an rganatn. Th ubjct t t bng rprducd accuratly and nt ud na mladng cntxt. Th matral mut b acknwldgd a rwn cpyrght and th ttl thpublcatn pcd. Th dcumnt/publcatn alu addd. i yu wh t r-u, pla apply

r a lck-U Lcn r alu addd matral at www.p.g.uk/clck-u/ytm/nln/pLgn.ap, r by wrtng t th oc Publc sctr inrmatn, inrmatn Plcy Tam, Kw, Rchmnd,surry TW9 4U. emal: [email protected]. i yu rqur th publcatn n an altrnat rmatpla mal altrnatrmat@cmmunt g g uk