the natural choice for part l compliance. - pilkington · changes to building regulations part l...
TRANSCRIPT
ChangestoBuildingRegulationsPartL2010
“Pilkingtonsolutions”
ThenaturalchoiceforPartLcompliance.
Contents
1. PartL(England&Wales)2010
– Introduction
– Headlinechanges
– Windowsinnewhomes
– Replacementwindows inhomes
– Conservatories
– Newnon-domestic buildings
– Existingnon-domestic buildings
2. Section6 (Scotland)2010
3. Summary
4. Actions
Par
t L (E
ngla
nd &
Wal
es) 2
010
1. PartL(England&Wales)2010
Introduction
• TheGovernmenthasannouncedaplantosteadilyimprovetheenergy
efficiencyofbuildings
• Significantchangesforwindowsin2010
• ResponsestopublicconsultationweresubmittedinSeptember2009
• FinalApprovedDocumentswerepublishedon30thApril2010with
implementation1stOctober2010
• Themainchangesandconsequencesforyourbusinessandyour
customers,areoutlinedintherelevantsections
Headlinechanges
• Allnewbuildingshavetargetof25%reductioninCarbonDioxide
(CO2)emissionsover2006level
• WindowEnergyRatings(WERs)willbecomethemaincompliancefor
replacementwindowsinhomes
– AlternativerouteretainedforwindowU-values
• NochangeforConservatories
• IncreasedfocusonlimitingsolargaininSummer
(reducingloadonair-conditioningorneedtoinstallairconditioning)
• Focusonsolarcontrolemphasizedparticularlyforpublicand
commercialbuildings
Windowsinnewhomes
• Targetof25%reductioninCO2emissionsover2006level
• TotalisbasedonoverallbuildingefficiencythroughSAPcalculation
– therightglasschoicewillinfluencethis
• Nospecificrequirementforwindows(otherthan“backstop”ofwindowU-value
=2.0W/m2K)–PilkingtonK Glass™andPilkingtonenergiKare™exceedrequirements
• TheoptimumcombinationofwindowgandU-valueswillgivethebestresultinSAP
– i.e.simplyloweringtheU-valuemayresultinworseoverallperformance
– Solargain(gvalue)asimportantaconsideration
• HouseBuilderscoulduseenergyefficientwindowstooffsetotherbuildingcosts
• UsingPilkingtonK Glass™especiallycombinedwithPilkingtonOptiwhite™asin
PilkingtonenergiKare™offerstheidealsolution
– PilkingtonenergiKare™Triplewillprovidetheultimateinenergyefficiencyfor
forwardlookinghousebuildersandforlowandzerocarbonsolutions
Replacementwindowsinhomes
• WindowEnergyRating(WER)bandCtobeminimumrequirementforallwindows
androoflights.Alternativeroute–maximumwindowU-valueof1.6W/m2K
– WERratingsaretheeasywaytodemonstratecomplianceinawaywhichcanbe
understoodbyhouseholders.Pilkingtonhasarrangementsinplacetohelp
windowcompaniesthroughtheapprovalsprocess.
• PilkingtonenergiKare™cost-effective,simplesolutionwithCratingforcompliance
andBorAfordifferentiation
• Wherenecessarytoretaincharacterofbuilding,centrepaneU-valueof1.2W/m2K
forreplacementwindowsorsupplementsingleglazingwithlow-esecondaryglazing
– PilkingtonK Glass™isidealproductforlatter
• GlazeddoorsmusthaveamaximumU-valueof1.8W/m2K
– easilyachievedusingPilkingtonK Glass™andPilkingtonenergiKare™
• WindowEnergyRatingscanbeusedforotherdomestic-likebuildings,
e.g.StudentaccommodationandCareHomes
Conservatories
• Small,domesticconservatories(<30m2)willnotbeintroducedintoPartLforthe
firsttime(asoriginallysuggestedintheconsultation)
• IGUswithoutlow-eglasscanstillbeused
– PilkingtonK Glass™andPilkingtonActiv™stilldeliverenergysavingandcomfort
benefitstoconsumerandallowyearrounduseofconservatory
• Exemptiononlyappliesif;
– Thermallyseparatedfromhouse,and
– Heatingsystemofdwellingnotextendedintoconservatory
• Wheretheseconditionsnotmet,glazingneedstobetosamestandardasfor
replacementwindows
• Despitethissetback,progressiveimprovementsinenergyefficiencyofconservatories
stillexpectedin2013and2016
– Totalenergyperformancemaybeintroducedforconservatories
New
Win
dow
s, R
epla
cem
ents
& C
onse
rvat
orie
s
Newnon-domesticbuildings
• Target25%(aggregate)reductioninCO2emissionsacrossallnewnon-domestic
buildings(includinghotels)comparedwith2006
• CompliancedemonstratedonthebasisoftotalCO2emissionsusingthe
GovernmentapprovedsoftwareSBEM
– therightglasschoicewillinfluencethis
• Notighteningoftherequirementsonwindowsspecifically
– limitingvaluesforglazedelementsleftunchangedi.e.windowU-value2.2W/m2K
• Nolimitingvalueondisplaywindowssuchasshopwindows,carshowroomsand
similarglazing–singleglazingcanstillbeused
• SBEMtakesintoaccountheatloss,solargainanddaylighttransmission–recognising
thatloweringU-valuenotalwaysthebestwaytoimproveenergyefficiency
• Limitingvaluemeansthatnonlow-emissivityglasswillnotbeallowed
• Exactglazingcombinationwilldependontypeofbuildingandwhetherair-conditioned
ornaturallyventilated
• PilkingtonK Glass™canmeetthelimitingvaluewithoutgasfillandtheremaybe
opportunitiestoinclude:
– solarcontrolglasssuchasPilkingtonEclipse Advantage™orPilkingtonSuncool™
Non
-dom
esti
c
Existingnon-domesticbuildings
• MaximumU-valueforwholeunit(i.e.frame+glass)is1.8W/m2K
• Wherenecessarytoretaincharacterofbuilding,centrepaneU-valueof1.2W/m2Kfor
replacementwindowsorsupplementsingleglazingwithlow-esecondaryglazing
– PilkingtonK Glass™isidealproductforlatter
• If buildingsessentiallydomestic(e.g.studentaccommodation,carehomes,etc.)same
requirementsasfordomesticbuildings,i.e.WERbandC,soPilkingtonenergiKare™isideal.
• Doorswith>50%glazedareamustbeamaximumof1.8W/m2K,therefore
PilkingtonK Glass™withargongasand/orwarmedgespacercancomply
• Replacementcurtainwallingrequirement:OverallU-valuedependentupon
glazedproportionand%openinglights
• PilkingtonK Glass™canbeusedinnon-domesticreplacementwindows
• Combinedwithincreasedemphasisonsolarcontrolinthesetypesofbuildings,
productssuchasPilkingtonOptitherm™,PilkingtonSuncool™,
PilkingtonEclipse Advantage™,PilkingtonSolar-E™andPilkingtonActiv™Neutral
shouldbeconsidered(dependingonperformancelevelrequired)
Sec
tion
6 (S
cotl
and)
201
0
Replacementwindowsinhomes(cont)
• Exemptionforlistedbuildingsandthoseinconservationareasismore
clearlydefined
– PilkingtonenergiKare™Legacyistheidealsolutionwheredesignis
constrained(orutilizePilkingtonK Glass™inappropriateframes)
2. Section6(Scotland)2010
What’sdifferentabouttheScotlandRegulations?
• Structure,timingandimplicationsverysimilartoEnglandandWales
• Newhomes:30%CO2improvementrequired.PilkingtonenergiKare™
remainstheidealcosteffectivesolution.Forsmallerbuildersthat
requireawindowU-valueof1.5,PilkingtonOptitherm™providesan
alternativesolution
• Existinghomes:WERbandCrequiredasminimum.
PilkingtonenergiKare™Plusenableswindowstoeasilycomply
• Extensionstohomes:Poorfabricinexistinghome-WERbandA
orUw=1.6requiredasminimum.PilkingtonenergiKare™Plus
isanoption.Otherwise-WERbandCrequiredasminimum.
PilkingtonenergiKare™Plusenableswindowstoeasilycomplyif you
raisethestandardoftheremainderofthebuilding
• Conservatories:2.0W/m2KwindowU-valuerequiredinallglazing–
easilyachievableusingPilkingtonK Glass™
• Newnon-domesticbuildings:target30%CO2improvementrequired
– PilkingtonK Glass™remainsideallow-esolutionfor
thermalinsulation
– PilkingtonEclipse Advantage™, PilkingtonSolar-E™and
PilkingtonActiv™Neutralofferwidechoicetosuitallapplications
• Existingnon-domesticbuildings:WithwindowU-valuesat1.6W/m2K
itprovidesanopportunitytousePilkingtonenergiKare™Plus
3. Summary
• Sweepingchangesinlinewithgovernmentplanstoimproveenergyefficiencyof
allbuildings
• Furtherchangesplannedfor2013andbeyond
• Glazinghasapivotalroleinmeetingthechallenges
• ProductsfromthePilkingtonrangearesuitedtomeetallfuturerequirements
• PilkingtonK Glass™andPilkingtonenergiKare™rangeareidealinthemajority
ofapplications
• SolarcontrolproductssuchasPilkingtonActiv™Blue,PilkingtonSuncool™range,
PilkingtonEclipse Advantage™andPilkingtonSolar-E™ areincreasinglyimportant
assolutionsforenergyefficientglazing
Foradditionaldetailsonthechanges
pleaserefertoourlatestupdates:
‘Bulletin10forEnglandandWales’and
‘Bulletin11forScotland’
Todownload,visit
www.pilkington.co.uk/buildingregulations
Forfurtherinformationpleasecontact
yourusualPilkingtonsalescontact,email
customercontactcentreon01744692000.
Bulletin 11Building (Scotland) Amendments Regulations 2010Changes to Technical Handbooks - Section 6 (Energy) 2010June 2010
IntroductionOn 6th April 2010, the Scottish Government
released the new versions of the domestic and
non-domestic Technical Handbooks in support of
the Building (Scotland) Amendments Regulations
2010. They will come into effect on 1st October
2010. The amendments have been made against
the background of the Sullivan report, which
outlined a low carbon building standards strategy
for Scotland. It recommended improvements in
energy efficiency in 2010 and 2013 with a target
of zero carbon new buildings by 2016 or 2017.
This Bulletin summarises the parts of the new
Technical Handbooks that are directly relevant
to the energy performance of glazing.
Headlines
• Significant reductions in target carbon dioxide
(CO2) emissions for all new buildings (compared
with 2007)
• Requirements for Window Energy Ratings
and window U-values have been tightened for
replacement windows for dwellings
• Severe restrictions are placed on the use of centre
pane U-values
• More conservatories fall in the scope for low
emissivity (low-e) glass
• Higher standards for windows for extensions
where the fabric of the existing dwelling is poor
• Increased focus on limiting solar gains during the
summer, in non-dwellings
New dwellings
The CO2 emissions associated with the energy
consumption of the whole dwelling remains as
the sole criterion for demonstrating compliance,
in that the predicted rate of emissions from the
dwelling (the Dwellings Emission Rate) must not
be greater than the Target Emissions Rate (based
on a notional dwelling). The standard government
software, SAP, provides the means for determining
compliance. For 2010, an aggregate target 30%
reduction in CO2 emissions (compared with the
2007 standard) has been set.
However, this does not mean every component
of a building will have to improve by 30%. As for
2007, there are no specific elemental requirements
for windows other than ‘long stops’. The long
stop, or limiting value, for the U-value for
windows, doors and rooflights has been set at
1.8 W/m2K. No restrictions have been placed on
glazed areas, offering the designer flexibility to take
advantage of energy saving glass. As an alternative,
particularly aimed at the self-build sector, the
dwelling can be designed to the same elemental
values as for the notional dwelling and effectively
considered ‘deemed-to-satisfy’. In the notional
dwelling, a window U-value of 1.5 W/m2K and
4.4m2 of solar thermal panels have been assumed.
In summary The Scottish Government has released the new versions of the domestic and non-domestic Technical Handbooks in support of the Building (Scotland) Amendments Regulations 2010, coming into force on 1st October 2010. New buildings will have to be at least 30% more efficient than current new buildings.
For replacement windows, the requirements for Window Energy Ratings and window U-values have been tightened. Severe restrictions are placed on the centre pane U-value compliance route. The benefit of supplementing existing single glazing with secondary glazing has also been recognised. Energy efficient glazing such as Pilkington K Glass™ and Pilkington energiKare™ are well placed to satisfy these requirements.
For non-dwellings, there is a greater focus on limiting solar gains in the summer, increasing opportunities for high performance solar control glass such as Pilkington Suncool™, Pilkington Eclipse Advantage™ and Pilkington Solar-E™. This Bulletin summarises the changes which are relevant to glazing. They come into force on 1st October 2010.
BulletinBulletin 11Building (Scotland) Amendments Regulations Building (Scotland) Amendments Regulations Changes to Technical Handbooks - Section 6 (Energy) Changes to Technical Handbooks - Section 6 (Energy) June June 22001100
IntroductionIntroductionOn 6th April 2010, the Scottish Government
released the new versions of the domestic and
non-domestic Technical Handbooks in support of
the Building (Scotland) Amendments Regulations
2010. They will come into effect on 1st October
2010. The amendments have been made against
the background of the Sullivan report, which
outlined a low carbon building standards strategy
for Scotland. It recommended improvements in
energy efficiency in 2010 and 2013 with a target
of zero carbon new buildings by 2016 or 2017.
This Bulletin summarises the parts of the new
Technical Handbooks that are directly relevant
to the energy performance of glazing.
HeadlinesHeadlines
•• Significant reductions in target carbon dioxide
(CO2) emissions for all new buildings (compared
with 2007)
•• Requirements for Window Energy Ratings
and window U-values have been tightened for
replacement windows for dwellings
•• Severe restrictions are placed on the use of centre
pane U-values
•• More conservatories fall in the scope for low
emissivity (low-e) glass
•• Higher standards for windows for extensions
where the fabric of the existing dwelling is poor
•• Increased focus on limiting solar gains during the
summer, in non-dwellings
In summaryThe Scottish Government The Scottish Government has released the new has released the new versions of the domestic versions of the domestic and non-domestic and non-domestic Technical Handbooks in Technical Handbooks in support of the Building support of the Building (Scotland) Amendments (Scotland) Amendments Regulations 20Regulations 20110, coming 0, coming into force on into force on 11st October st October 2020110. New buildings will 0. New buildings will have to be at least 30% have to be at least 30% more efficient than more efficient than current new buildings.current new buildings.
For replacement windows,the requirements for Window Energy Ratings and window U-values have been tightened.Severe restrictions are placed on the centre pane U-value compliance route. The benefit of supplementing existing single glazing with secondary glazing has alsobeen recognised. Energy efficient glazing such as Pilkington K Glass™ and Pilkington energiKare™
are well placed to satisfy these requirements.
For non-dwellings, For non-dwellings, there is a greater focus there is a greater focus on limiting solar gains on limiting solar gains in the summer, in the summer, increasing opportunities increasing opportunities for high performance for high performance solar control glass such solar control glass such as Pilkington as Pilkington SuncoolSuncool™™, , Pilkington Pilkington Eclipse Eclipse AdvantageAdvantage™™ and and ™™ and ™™
Pilkington Pilkington Solar-ESolar-E™™..This Bulletin summarises This Bulletin summarises the changes which are the changes which are relevant to glazing. relevant to glazing. They come into force They come into force on on 11st October 2st October 200110.0.
Bulletin 10Changes to Building Regulations Part L (England & Wales) 2010June 2010
IntroductionThe new Approved Documents for Part L of the
Building Regulations in England and Wales were
published by the Government’s Department for
Communities and Local Government (CLG) on
30th April 2010. They will come into effect on
1st October 2010. The previous amendments to
Part L in 2006 introduced very few significant
changes for products from the fenestration
industry. This was in recognition of the major
steps the industry had taken to develop energy
efficient products in time for the 2002 changes.
However, the expectation was that significant
improvements would be required from the
industry for 2010. This Bulletin summarises the
parts of the new Approved Documents that are
directly relevant to glazing.
Headlines
• Significant reductions in target carbon dioxide
(CO2) emissions for all new buildings (compared
with 2006)
• Requirements for Window Energy Ratings
and window U-values have been tightened for
replacement windows for dwellings
• Greater restrictions are placed on the use of
centre pane U-values
• Recognition of benefits of supplementing
existing single glazing with low-emissivity (low-e)
secondary glazing
• Increased focus on the risk of overheating in
summer, particularly in non-dwellings
New dwellings
The CO2 emissions associated with the energy
consumption of the whole dwelling remains as
the sole criterion for demonstrating compliance,
in that the predicted rate of emissions from the
dwelling (the Dwelling Emissions Rate) must not
be greater than the Target Emissions Rate (based
on a notional dwelling). The standard government
software, SAP, provides the means for determining
compliance, although it has been revised to reflect
the change.
For 2010, a target 25% reduction in CO2 emissions
(compared with 2006) has been set, following the
well-documented roadmap that was described in
our Bulletin 8 (issued August 2008).
However, this does not mean every component of a
building will have to improve by 25%. As for 2006,
there are no specific elemental requirements for
windows other than ‘long stops’. The long stop, or
limiting value, for the U-value for windows, roof
windows, glazed rooflights, pedestrian doors etc.,
has been set at 2.0 W/m2K. There is a cautionary
note about designing dwellings where the glazing
total area is less than 20% of the floor area leading
to a need for more artificial lighting and an
associated increase in energy consumption.
In summary The Part L Approved Documents of the Building Regulations for England and Wales have been issued, coming into force on 1st October 2010.
New buildings will have to be at least 25% more efficient than current new buildings.
For replacement windows, the requirements for Window Energy Ratings and window U-values have been tightened. Greater restrictions are placed on the centre pane U-value compliance route. The benefit of supplementing existing single glazing with low-e secondary glazing has also been recognised. Energy efficient glazing such as Pilkington K Glass™ and Pilkington energiKare™ are well placed to satisfy these requirements.
For non-dwellings, there will be a greater focus on limiting solar gains in the summer, increasing opportunities for high performance solar control glass such as Pilkington Suncool™, Pilkington Eclipse Advantage™ and Pilkington Solar-E™.
This Bulletin summarises the changes which are relevant to glazing. They come into force on 1st October 2010.
4. ActionPlanning
• FordomesticwindowstocomplyviatheWindowEnergyRatingsroute,youwillneed
toberegisteredwithBFRCoranotherapprovedschemebeforeOctober2010
• Don’tleaveittoolate
– Checkthatyourcustomersunderstandandarereadyforthechangestoo
• AssistancethroughtheWindowEnergyRatingsapprovalprocessfor
Pilkingtoncustomers
– Forfurtherdetailscallourcustomercontactcentreon01744692000
• Thinkaboutwhichproductsyouwilluseforcomplianceorimprovedenergy
performanceinallbuildingtypes:
– Conservatories–PilkingtonK Glass™andPilkingtonActiv™
– Nondomestic–PilkingtonK Glass™andPilkingtonSolarControlrange
– Newhomes–PilkingtonenergiKare™
– Existinghomes–PilkingtonenergiKare™
Sum
mar
y &
Act
ion
Pla
nnin
g
ACT NOW
Warning!Review glazingsolution for Part L DEADLINE
January April
FinalBuildingRegulationspublished
Ensuremeansofcomplianceinplacefordomesticwindowsupplyroute
NewBuildingRegulationsimplemented
July October
ActivTM
self-cleaning glass
Pilkington
G la s s
Pilkington Building Products - UKPrescotRoad,StHelens,WA103TTUnitedKingdom
www.pilkington.co.uk 9041-July2010
Tothefullestextentpermittedbyapplicablelaws,NipponSheetGlassCo.Ltd.anditssubsidiarycompaniesdisclaimallliabilityforanyerrorinoromission
fromthispublicationandforallconsequencesofrelyingonit.