building regulations part l2a assessment report

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cpwp.com © Couch Perry Wilkes

Bicester Units A1 & A2

Building Regulations Part L2a

Assessment Report

DOCUMENT REVISION HISTORY Ref: 16106

Rev Author Verification By Date Comments / Status

P01 J. Byrne T. Foster 09.06.2016 Issued for Information.

P02 J. Byrne T. Foster 02.08.2016 PV removed from Unit A1

P03 J. Byrne T. Foster 12.08.16 Heating philosophy changed to VRF

P04 S.Arnold T. Foster 09.09.16 Description & values updated.


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Contents Page

1.0 Introduction 2

1.1 Criterion 1 – Achieving the BER 2

1.2 Criterion 2 – Limits on Design Flexibility 2

1.3 Criterion 3 – Limiting the Effects of Solar Gains in Summer 2

1.4 Reference Drawings 2

2.0 Base Model 3

2.1 Geometry 3

2.2 Weather File 3

2.3 Thermal Properties of Construction Elements 3

2.4 Internal Conditions 4

2.5 Calendar 4

3.0 Mechanical Services 4

3.1 Ventilation 4

3.2 Heating Services 5

3.3 Domestic Hot Water Services 5

3.4 Comfort Cooling Services 5

4.0 Electrical Services 6

4.1 Lighting 6

4.2 Power Factor Correction 6

5.0 Air Permeability 6

6.0 Results 7

6.1 Criterion 1 – Achieving the BER 7

6.2 Criterion 2 – Limits on Design Flexibility 7

6.3 Criterion 3 – Limiting the Effects of Solar Gain in Summer 8

6.4 Preliminary EPC 8

7.0 Appendix A

8.0 Appendix B

9.0 Appendix C

10.0 Appendix D


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1-0 1.0 INTRODUCTION

This report has been written by Couch Perry Wilkes in order to provide an assessment of the compliance of the Bicester units A1 & A2 development, with the Building Regulations 2013, Part L2a document.

The purpose of the Part L2a document is to ensure that reasonable provision has been made for the conservation of fuel and power, with regards to new developments and refurbishments.

Compliance with the Part L2a document, must be proven using one of the calculation tools included in the methodology for calculating the energy performance of buildings, approved by the Secretary of State. The data within the following document has been produced using the Environmental Design Solutions Limited (EDSL), Tas Building Simulator, version 9.3.3. Tas is a software package that simulates the dynamic thermal performance of buildings and their systems.

This document will provide a basis, from which an understanding of the requirements to fulfil the targets for efficiency and carbon reductions will be achieved. It will also outline performance criteria for the efficiencies of the mechanical and electrical building services systems and input building fabric information and details, as agreed with the design team.

Both units are to be provided on a ‘Shell and core basis’ and as such, this report and accompanying simulations cover the office areas only. When a tenant is found for each scheme it will be their responsibility to provide any calculations required to satisfy part L2 which will be tailored to their specific HVAC requirements.

1.1 Criterion 1 – Achieving the BER

In order to conform to the requirements outlaid in the Part L2a document, Criterion 1, the actual Buildings Emissions Rate (BER), calculated from the design building, must be no greater than the Target Emissions Rate (TER), calculated from the notional building. The final calculation produced must be based on the building as constructed, incorporating any changes to performance specifications that have been made during construction.

1.2 Criterion 2 – Limits on Design Flexibility

The Part L2a document, Criterion 2 aims to ensure that reasonable provision has been made to limit heat gains and losses through the fabric of the building, by outlining limiting performances for construction elements. In order to meet the requirements of the criterion, these limits must be met.

1.3 Criterion 3 – Limiting the Effects of Solar Gains in Summer

Criterion 3 within the Part L2a document, aims to limit the effects of solar gains in summer in order to reduce the requirements for air conditioning and / or reduce the installed capacity of any air conditioning system that is installed. In order to conform to the requirements a simulation is undertaken, in which the actual buildings solar gains, through the glazing from April to September, are compared with the National Calculation Methodology (NCM) standards. In order to conform to the requirements, the solar gains experienced must not be in excess of the NCM model.

1.4 Drawing References

The AutoCAD files provided by PHP Architects on the 08/06/16 were used to generate the model.


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2.0 Base Model

From drawings provided by the project architects a base model of the Bicester units A1 & A2 were generated using the Tas software. In order to run a thermal simulation, the Tas software uses a building design file which collates different aspects of the thermal model. This includes:

o Geometry

o Weather

o Thermal properties of construction elements

o Internal conditions (specific to individual zones)

o Calendar

2.1 Geometry

The 3D modelling process involves utilising CAD layouts of the building. The plans have been utilised to create the form and structure of the building within the digital model, with internal and external features of the building added to form an accurate representation.

2.2 Weather File

The thermal model utilises Test Reference Year (TRY) recorded weather data for the Swindon area (weather file located nearest to the site).

2.3 Thermal Properties of Construction Elements

The construction elements utilised within the Part L2a model have been developed using information provided by the design team.

o External Wall ’U’ value - 0.26 w/m2k

o Floor ‘U’ Value - 0.22 w/m2k

o Flat Roof ’U’ Value - 0.18 w/m2k

o Internal Floor/Internal Ceiling ‘U’ Value - 1.07 w/m2k

o Curtain Walling & Glazed Doors ‘U’ Value - 1.79 w/m2k

- Light transmittance – 49%

- Shading coefficient – 36%

- Solar G value – 32%

o Windows ‘U’ value - 1.53 w/m2k

- Light transmittance – 71%

- Shading coefficient – 46%

- Solar G value – 40%

o Personnel Doors - 2.18 w/m2k

* Note glazed units including curtain walling are taken as composite ‘U’ values inclusive of frames.


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2.4 Internal Conditions

The software utilises NCM internal condition profiles determined from the rooms usage, as provided by the British Research Establishment (BRE).

The internal profile criteria include:

o Room occupancy levels

o Room usage periods

o Internal equipment levels

o Artificial lighting (illumination) levels

o Ventilation levels (mechanical)

As advised by EDSL / Tas, it is the Government’s preference to use the NCM profiles in order to achieve results for particular types of buildings on an equal basis, providing overall energy efficiency comparisons on a ‘like for like’ basis and not energy savings.

2.5 Calendar

The thermal model was simulated using a CIBSE standard calendar, as recommended in the Part L2a guidance.

3.0 Mechanical Services

3.1 Ventilation

All areas of the building barring the Comms room shall be mechanically ventilated based on occupancy levels. Therefore a mechanical ventilation system has been assigned to each applicable space. The NCM internal condition templates determine information about the level of mechanical ventilation assigned to individual zones.

Central mechanical ventilation has been provided to zones, dependent upon their assigned internal condition, incorporating heating and heat recovery. The heat recovery system incorporated in the Part L calculations is a plate heat exchanger, with an overall heat recovery efficiency of 80 percent. The system has been set to operate at a Specific Fan Power (SFP) of 1.6 w/l/s.

3.2 Heating Services

Heating services to all areas within these calculations have been provided by local VRF units

3.3 Domestic Hot Water Services

The domestic hot water services within these calculations have been provided by local electric hot water heaters. As advised within the non-domestic building compliance guide, these systems have been set to operate at an efficiency of 100 percent. System distribution losses have been set at 95%.

3.4 Comfort Cooling Services

Comfort cooling has been assigned to the Comms Room on the second floor. The Comms Room has been provided with its own dedicated split system, providing both heating and cooling to the space. The COP for the system has been set at 3.6

when in cooling operation.


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4.0 Electrical Services

4.1 Lighting

Lighting levels are determined by the NCM internal conditions, assigned individually to each space.

The lighting template control functions for individual areas have been assigned based an outline design, incorporating where applicable daylight and occupancy controls. Lighting efficacies have been implemented at 60 luminaire lumens per circuit watt, following the minimum requirements outlined within the Non-domestic Building Compliance Guide.

4.2 Power Factor Correction

The building has been set to incorporate a power factor correction of greater than 0.95.

5.0 Air Permeability

The air permeability utilised within the model was set to 5 m³/(h.m²)@50Pa, as agreed with the design team.

It should be noted that any changes to the building and its services may impact upon the Part L2a assessment. Therefore any deviations from the aforementioned outlined proposals and service efficiencies are to be highlighted prior to construction / installation, so the impact of the proposed changes may be verified.


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6.0 Results The model has been run and the results calculated. The results for the individual units and individual criterion can be seen below:

6.1 Unit A1

6.1.1 Criterion 1 – Achieving the BER

Below the results from the Part L2a simulation can be seen:

Target Emission Rating (TER): 19.2 kgCO2/m2

Building Emission Rating (BER): 14.8 kgCO2/m2

Energy Performance Certificate: 25 – A

The building, as described and entered into the Tas software, achieves a pass rating for the Part L2 2013, criterion 1, carbon emissions check.

6.1.2 Criterion 2 – Limits on Design Flexibility

Below a table can be seen in which the limiting fabric performances, outlined within the Part L2a document, comparable to the inputs for the building are highlighted:

Building Element Limiting fabric parameters (Part L2a,

Criterion 2) Bicester units A1 & A2 fabric

thermal properties

Roof 0.25 w/m²K 0.18 w/m²K

Wall 0.35 w/m²K 0.26 w/m²K

Floor 0.25 w/m²K 0.22 w/m²K

Window, roof windows & rooflights 2.2 w/m²K 1.79 w/m²K

Curtain walling & Glazed Doors 2.2 w/m²K 1.79 w/m²K

Personnel Doors 2.2 w/m²K 1.63 w/m²K

Vehicle Access & similar large doors 1.5 w/m²K -

High usage entrance doors 3.5 w/m²K -

Air permeability 10 m³/h.m² at 50 Pa 5 m³/h.m² at 50 Pa

From the above table it can be seen that all of the building elements meet and better the requirements of Criterion 2.

6.1.3 Criterion 3 – Limiting the Effects of Solar Gains in Summer

All areas within the development meet the requirements of criterion 3 apart from the multi storey atrium area of plot A1. A brise soleil has been included to provide the required shading to the curtain walling of the main entrance to achieve the requirements of criterion 3 in this area. This is one option of reducing the solar gain to this area, an alternative option would be to increase the G value of the curtain walling to the multi storey atrium.

For the results table please refer to pages 2&3 of the BRUKL document, found within Appendix A.


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6.2 Unit A2

6.2.1 Criterion 1 – Achieving the BER

Below the results from the Part L2a simulation can be seen:

Target Emission Rating (TER): 24.8 kgCO2/m2

Building Emission Rating (BER): 15.6 kgCO2/m2

Energy Performance Certificate: 25 – A

The building, as described and entered into the Tas software, fails to comply with Part L2 2013, criterion 1, carbon emissions check.

6.2.2 Criterion 2 – Limits on Design Flexibility

Below a table can be seen in which the limiting fabric performances, outlined within the Part L2a document, comparable to the inputs for the building are highlighted:

Building Element Limiting fabric parameters (Part L2a,

Criterion 2) Bicester units A1 & A2 fabric

thermal properties

Roof 0.25 w/m²K 0.18 w/m²K

Wall 0.35 w/m²K 0.26 w/m²K

Floor 0.25 w/m²K 0.22 w/m²K

Window, roof windows & roof lights 2.2 w/m²K 1.79 w/m²K

Curtain walling & Glazed Doors 2.2 w/m²K 1.79 w/m²K

Personnel Doors 2.2 w/m²K 1.63 w/m²K

Vehicle Access & similar large doors 1.5 w/m²K -

High usage entrance doors 3.5 w/m²K -

Air permeability 10 m³/h.m² at 50 Pa 5 m³/h.m² at 50 Pa

From the above table it can be seen that all of the building elements meet and better the requirements of Criterion 2.

6.2.3 Criterion 3 – Limiting the Effects of Solar Gains in Summer

All areas within the development meet the requirements of criterion 3 apart from the multi storey atrium area of plot A1. A brise soleil similar to that used in A1 has been included however the area is still failing and it will be a requirement to improve the curtain walling G value to achieve compliance with criterion 3.

For the results table please refer to pages 2&3 of the BRUKL document, found within Appendix C.

6.3 Preliminary EPC

For the buildings EPC, please refer to Appendix B for unit A1 and Appendix D for unit 2.


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7.0 Appendix A

BRUKL Output DocumentCompliance with England Building Regulations Part L 2013

Administrative information

Criterion 1: The calculated CO emission rate for the building should not exceed the target2

Criterion 2: The performance of the building fabric and the building services should

achieve reasonable overall standards of energy efficiency

Project name

Date: Fri Aug 12 08:47:50 2016

As designedBicester Warehouse

Building Details

Address: ,

Owner Details

Name:

Telephone number:

Address: , , Certification tool

Calculation engine: TAS

Calculation engine version: "v9.3.3"

Interface to calculation engine: TAS

Interface to calculation engine version: v9.3.3

BRUKL compliance check version: v5.2.d.2

Certifier details

Name: Joe Byrne

Telephone number:

Address: , ,

CO emission rate from the notional building, kgCO /m .annum2 22 19.2

Target CO emission rate (TER), kgCO /m .annum2 22 19.2

Building CO emission rate (BER), kgCO /m .annum2 22 14.8

Are emissions from the building less than or equal to the target? BER =< TER

Are as built details the same as used in the BER calculations? Separate submission

Element U U U Surface where the maximum value occurs*a-Limit a-Calc i-Calc

Wall** 0.35 0.26 0.26 External Wall

Floor 0.25 0.22 0.22 Ground Floor

Roof 0.25 0.18 0.18 Roof

Windows***, roof windows, and rooflights 2.2 1.67 1.79 Curtain Walling

Personnel doors 2.2 1.63 1.63 glazed door

Vehicle access & similar large doors 1.5 - - No vehicle doors in project

High usage entrance doors 3.5 - - No high usage entrance doors in project

Building fabric

Values not achieving standards in the Non-Domestic Building Services Compliance Guide and Part L are displayed in red.

U = Limiting area-weighted average U-values [W/(m K)]a-Limit2

U = Calculated area-weighted average U-values [W/(m K)]a-Calc2 U = Calculated maximum individual element U-values [W/(m K)]i-Calc

2

* There might be more than one surface where the maximum U-value occurs.** Automatic U-value check by the tool does not apply to curtain walls whose limiting standard is similar to that for windows.*** Display windows and similar glazing are excluded from the U-value check.N.B.: Neither roof ventilators (inc. smoke vents) nor swimming pool basins are modelled or checked against the limiting standards by the tool.

Air Permeability Worst acceptable standard This building

m /(h.m ) at 50 Pa 3 2 10 5

Page 1 of 7

Whole building lighting automatic monitoring & targeting with alarms for out-of-range values YES

Whole building electric power factor achieved by power factor correction >0.95

Building services

The standard values listed below are minimum values for efficiencies and maximum values for SFPs.Refer to the Non-Domestic Building Services Compliance Guide for details.

1- Mechanical Ventilation with Heating & Cooling (43 Zones)

Heating efficiency Cooling efficiency Radiant efficiency SFP [W/(l/s)] HR efficiency

This system 4 3.6 - 1.6 0.8

Standard value 2.5* 2.6 N/A 1.5^ 0.5

Automatic monitoring & targeting with alarms for out-of-range values for this HVAC system YES

* Standard shown is for all types >12 kW output, except absorption and gas engine heat pumps. For types <=12 kW output, refer to EN 14825 for limiting standards.

^ Allowed SFP may be increased by the amounts specified in the Non-Domestic Building Services Compliance Guide if the system includes additional components as listed in the Guide.

2- Mechanical Ventilation with Heating & Cooling (sf PA)


This system 4 - - 1.6 0.8

Standard value 2.5* N/A N/A 1.5^ 0.5




1- New DHW Circuit

Water heating efficiency Storage loss factor [kWh/litre per day]

This building 1 0

Standard value 1 N/A

"No zones in project where local mechanical ventilation, exhaust, or terminal unit is applicable"

General lighting and display lighting Luminous efficacy [lm/W]

Zone name Luminaire Lamp Display lamp General lighting [W]

Standard value 60 60 22

comms room 60 - - 38

AWC - 60 - 80

WC 1 - 60 - 34

WC2 - 60 - 35

stair 2 - 60 - 422

quality control 60 - - 263

show room 60 - - 2646

main entrance and waiting area - 60 22 329

stair 1 - 60 - 169

main reception corridor - 60 - 36

canteen - 60 - 245

cleaners 60 - - 7

store 60 - - 8

staff toilet 1 - 60 - 35

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staff toilet 2 - 60 - 35

archive 60 - - 106

side entrance circulation - 60 - 109

side entrance reception - 60 22 55

spares 60 - - 21

warehouse office 60 - - 707

ff showroom 60 - - 1813

ff circulation - 60 - 83

ff female wc - 60 - 122

ff male wc - 60 - 83

ff AWC - 60 - 38

ff WC lobby - 60 - 14

ff front face showroom 60 - - 2497

sf boardroom 60 - - 846

sf meeting room 60 - - 316

sf office 1 60 - - 249

sf office 2 60 - - 336

sf PA 60 - - 125

sf office circulation - 60 - 80

sf main circulation - 60 - 79

sf female WC - 60 - 112

sf male WC - 60 - 80

sf AWC and shower - 60 - 49

sf cleaners 60 - - 6

sf filing 60 - - 9

sf reception - 60 22 184

sf tea point - 60 - 115

sf large office 60 - - 2040

sf WC lobby - 60 - 14

sf large store 60 - - 13

Criterion 3: The spaces in the building should have appropriate passive control measures

to limit solar gains

Zone Solar gain limit exceeded? (%) Internal blinds used?

comms room N/A N/A

AWC N/A N/A

WC 1 N/A N/A

WC2 N/A N/A

stair 2 NO (-79%) NO

quality control N/A N/A

show room NO (-57%) NO

main entrance and waiting area NO (0%) NO


main reception corridor NO (-18%) NO

Page 3 of 7


canteen NO (-46%) NO

cleaners N/A N/A

store N/A N/A

staff toilet 1 N/A N/A

staff toilet 2 N/A N/A

archive NO (-68%) NO

side entrance circulation NO (-28%) NO

side entrance reception NO (-58%) NO

spares N/A N/A

warehouse office NO (-34%) NO

ff showroom NO (-47%) NO

ff circulation NO (-60%) NO

ff female wc NO (-56%) NO

ff male wc N/A N/A

ff AWC N/A N/A

ff WC lobby N/A N/A

ff front face showroom NO (-57%) NO

sf boardroom NO (-36%) NO

sf meeting room NO (-37%) NO

sf office 1 NO (-67%) NO

sf office 2 NO (-49%) NO

sf PA NO (-57%) NO

sf office circulation NO (-92%) NO

sf main circulation NO (-60%) NO

sf female WC NO (-53%) NO

sf male WC N/A N/A

sf AWC and shower N/A N/A

sf cleaners N/A N/A

sf filing NO (-78%) NO

sf reception NO (-66%) NO

sf tea point NO (-91%) NO

sf large office NO (-58%) NO

sf WC lobby N/A N/A

sf large store N/A N/A

Criterion 4: The performance of the building, as built, should be consistent with the

calculated BER

Separate submission

Criterion 5: The necessary provisions for enabling energy-efficient operation of the

building should be in place

Separate submission

EPBD (Recast): Consideration of alternative energy systems

Were alternative energy systems considered and analysed as part of the design process? NO

Is evidence of such assessment available as a separate submission? NO

Are any such measures included in the proposed design? NO

Page 4 of 7

Technical Data Sheet (Actual vs. Notional Building)

Building Global Parameters Building Use

Actual Notional

Area [m ]2

External area [m ]2

Weather

Infiltration [m /hm @ 50Pa]3 2

Average conductance [W/K]

Average U-value [W/m K]2

Alpha value* [%]

* Percentage of the building's average heat transfer coefficient which is due to thermal bridging

1628

18683

SWI

5

4416

0.24

1.86

1628

18683

SWI

3

4330

0.23

1.86

% Area Building Type

A1/A2 Retail/Financial and Professional services

A3/A4/A5 Restaurants and Cafes/Drinking Est./Takeaways

100 B1 Offices and Workshop businesses

B2 to B7 General Industrial and Special Industrial Groups

B8 Storage or Distribution

C1 Hotels

C2 Residential Inst.: Hospitals and Care Homes

C2 Residential Inst.: Residential schools

C2 Residential Inst.: Universities and colleges

C2A Secure Residential Inst.

Residential spaces

D1 Non-residential Inst.: Community/Day Centre

D1 Non-residential Inst.: Libraries, Museums, and Galleries

D1 Non-residential Inst.: Education

D1 Non-residential Inst.: Primary Health Care Building

D1 Non-residential Inst.: Crown and County Courts

D2 General Assembly and Leisure, Night Clubs and Theatres

Others: Passenger terminals

Others: Emergency services

Others: Miscellaneous 24hr activities

Others: Car Parks 24 hrs

Others - Stand alone utility block

Energy Consumption by End Use [kWh/m ]2

Actual Notional

Heating

Cooling

Auxiliary

Lighting

Hot water

Equipment*

TOTAL**

* Energy used by equipment does not count towards the total for calculating emissions.** Total is net of any electrical energy displaced by CHP generators, if applicable.

1.55

4.57

6.05

13.58

3.48

34.63

29.22

11.35

5.75

3.52

19.04

4.02

34.63

43.67

Energy Production by Technology [kWh/m ]2

Actual Notional

Photovoltaic systems

Wind turbines

CHP generators

Solar thermal systems

0

0

0

0

0

0

0

0

Energy & CO Emissions Summary2

Actual Notional

Heating + cooling demand [MJ/m ]2

Primary energy* [kWh/m ]2

Total emissions [kg/m ]2

85.82

87.47

14.8

113.65

101.64

19.2

* Primary energy is net of any electrical energy displaced by CHP generators, if applicable.

Page 5 of 7

HVAC Systems Performance

System Type Heat dem Cool dem Heat con Cool con Aux con Heat Cool Heat gen Cool gen

MJ/m2 MJ/m2 kWh/m2 kWh/m2 kWh/m2 SSEEF SSEER SEFF SEER

[ST] Split or multi-split system, [HS] Heat pump (electric): air source, [HFT] Electricity, [CFT] Electricity

Actual

Notional

23.3

34.3

62.4

78.4

1.6

11.7

4.8

6.1

6.4

3.7

4

0.82

3.6

3.6

4

----

3.6

----

Key to terms

Heat dem [MJ/m2] = Heating energy demandCool dem [MJ/m2] = Cooling energy demandHeat con [kWh/m2] = Heating energy consumptionCool con [kWh/m2] = Cooling energy consumptionAux con [kWh/m2] = Auxiliary energy consumptionHeat SSEFF = Heating system seasonal efficiency (for notional building, value depends on activity glazing class)Cool SSEER = Cooling system seasonal energy efficiency ratioHeat gen SSEFF = Heating generator seasonal efficiencyCool gen SSEER = Cooling generator seasonal energy efficiency ratioST = System typeHS = Heat sourceHFT = Heating fuel typeCFT = Cooling fuel type

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Key Features

The BCO can give particular attention to items with specifications that are better than typically expected.

Element U U Surface where the minimum value occurs*i-Typ i-Min

Wall 0.23 0.26 External Wall

Floor 0.2 0.22 Ground Floor

Roof 0.15 0.18 Roof

Windows, roof windows, and rooflights 1.5 1.53 curtain wall

Personnel doors 1.5 1.63 glazed door

Vehicle access & similar large doors 1.5 - No vehicle doors in project

High usage entrance doors 1.5 - No high usage entrance doors in project

Building fabric

U = Typical individual element U-values [W/(m K)]i-Typ2 U = Minimum individual element U-values [W/(m K)]i-Min

2

* There might be more than one surface where the minimum U-value occurs.

Air Permeability Typical value This building

m /(h.m ) at 50 Pa 3 2 5 5

Page 7 of 7


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8.0 Appendix B

1

26

52

78

104

130

156

182 208 234

260

286

312

338

364

A+A+

AA 0-250-25

BB 26-5026-50

CC 51-7551-75

DD 76-10076-100

EE 101-125101-125

FF 126-150126-150

GGOver 150Over 150

This is how energy efficient

the building is.25Net zero CO emissions2

More energy efficient

Less energy efficient

33

97

Buildings similar to this one

could have ratings as follows:

If newly built

If typical of theexisting stock

Energy Performance CertificateNon-Domestic Building

Energy Performance Asset Rating

Technical information Benchmarks

Certificate Reference Number:

0970-1945-9336-8972-6120

Main heating fuel: Other

Building environment: Unconditioned

Total useful floor area (m ): 2 1628

Building complexity (NOS level): 5

Building emission rate (kgCO /m ): 2

2 14.79

This certificate shows the energy rating of this building. It indicates the energy efficiency of the building fabric and the heating, ventilation, cooling and lighting systems. The rating is compared to two benchmarks for this type of building: one appropriate for new buildings and one appropriate for existing buildings. There is more advice on how to interpret this information on the Government's website www.communities.gov.uk/epbd.

44

7 61

6

S K - 6 2 4 2 6 2 - 0 2 2 3 0 0

2 5 - 0 9 7 0 - 1 9 4 5 - 9 3 3 6 - 8 9 7 2 - 6 1 2 0 - S K 6 2 4 2 6 2 0 2 2 3 0 0 - D C L G x E P C g e n 2 0 0 8

This certificate has been produced by E P C g e n, a software module developed by B R E for C L G under contract with F M. The author of the program is J o s e O r t i z (o r t i z j @ b r e . c o . u k ). Some security features proves the authenticity of this document.

ONLY

FOR

ILLU

STRATIO

N

http://www.communities.gov.uk/epbd

1

22

44

66

88

110

132

154

176 198 220

242

264

286

308

330

352


If you have a complaint or wish to confirm that the certificate is genuine

This is an Energy Performance Certificate as defined in SI2007:991 as amended

Details of the assessor and the relevant accreditation scheme are on the certificate. You can get contact details of the

accreditation scheme from the Government's website at www.communities.gov.uk/epbd, together with details of the

procedures for confirming authenticity of a certificate and for making a complaint.

Assessment Software:

Property Reference:

Assessor Name:

Assessor Number:

Accreditation Scheme:

Employer/Trading Name:

Employer/Trading Address:

Issue Date:

Valid Until:

Related Party Disclosure:

Recommendations for improving the property are contained in Report Reference Number: 9182-4077-9463-1602-9591

TAS v9.3.3 using calculation engine TAS v9.3.3

123456789012

Joe Byrne

ABCD123456

Couch Perry Wilkes

12 Aug 2016

11 Aug 2026 (unless superseded by a later certificate)

Not related to the owner

For advice on how to take action and to find out about

technical and financial assistance schemes to help make

buildings more energy efficient visit www.carbontrust.co.uk

or call us on 0800 085 2005

. . . . . . . . . .

. . . . . . . . . .

. . . . . . . . . .

. . . . . . . .

ONLY

FOR

ILLU

STRATIO

N


http://www.carbontrust.co.uk


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9.0 Appendix C

BRUKL Output DocumentCompliance with England Building Regulations Part L 2013


Criterion 1: The calculated CO emission rate for the building should not exceed the target2

Criterion 2: The performance of the building fabric and the building services should

achieve reasonable overall standards of energy efficiency

Project name

Date: Fri Aug 12 11:44:46 2016

As designedBicester Warehouse

Building Details

Address: ,

Owner Details

Name:

Telephone number:

Address: , , Certification tool

Calculation engine: TAS

Calculation engine version: "v9.3.3"

Interface to calculation engine: TAS

Interface to calculation engine version: v9.3.3

BRUKL compliance check version: v5.2.d.2

Certifier details

Name: Joe Byrne

Telephone number:

Address: , ,

CO emission rate from the notional building, kgCO /m .annum2 22 24.8

Target CO emission rate (TER), kgCO /m .annum2 22 24.8

Building CO emission rate (BER), kgCO /m .annum2 22 15.6

Are emissions from the building less than or equal to the target? BER =< TER

Are as built details the same as used in the BER calculations? Separate submission

Element U U U Surface where the maximum value occurs*a-Limit a-Calc i-Calc

Wall** 0.35 0.26 0.26 External Wall

Floor 0.25 0.22 0.22 Ground Floor

Roof 0.25 0.18 0.18 Roof

Windows***, roof windows, and rooflights 2.2 1.62 1.75 small window

Personnel doors 2.2 1.63 1.63 glazed door

Vehicle access & similar large doors 1.5 - - No vehicle doors in project

High usage entrance doors 3.5 - - No high usage entrance doors in project

Building fabric

Values not achieving standards in the Non-Domestic Building Services Compliance Guide and Part L are displayed in red.

U = Limiting area-weighted average U-values [W/(m K)]a-Limit2

U = Calculated area-weighted average U-values [W/(m K)]a-Calc2 U = Calculated maximum individual element U-values [W/(m K)]i-Calc

2

* There might be more than one surface where the maximum U-value occurs.** Automatic U-value check by the tool does not apply to curtain walls whose limiting standard is similar to that for windows.*** Display windows and similar glazing are excluded from the U-value check.N.B.: Neither roof ventilators (inc. smoke vents) nor swimming pool basins are modelled or checked against the limiting standards by the tool.

Air Permeability Worst acceptable standard This building

m /(h.m ) at 50 Pa 3 2 10 5

Page 1 of 6

Whole building lighting automatic monitoring & targeting with alarms for out-of-range values YES

Whole building electric power factor achieved by power factor correction >0.95

Building services

The standard values listed below are minimum values for efficiencies and maximum values for SFPs.Refer to the Non-Domestic Building Services Compliance Guide for details.

1- Mechanical Ventilation with heating and cooling (11 Zones)


This system 4 3.6 - 1.6 0.8

Standard value 2.5* 2.6 N/A 1.5^ 0.5




2- Mechanical Ventilation with heating and cooling (2 Zones)


This system 4 - - 1.6 0.8

Standard value 2.5* N/A N/A 1.5^ 0.5




1- New DHW Circuit

Water heating efficiency Storage loss factor [kWh/litre per day]

This building 1 0

Standard value 1 N/A

"No zones in project where local mechanical ventilation, exhaust, or terminal unit is applicable"




AWC - 60 - 48

stair 2 - 60 - 175

main entrance and waiting area - 60 22 309

stair 1 - 60 - 142

cleaners 60 - - 8

store 60 - - 8

warehouse office 60 - - 5627

ff circulation - 60 - 42

ff female wc - 60 - 92

ff male wc - 60 - 91

ff AWC - 60 - 61

ff WC lobby - 60 - 42

sf tea point - 60 - 144

Page 2 of 6

Criterion 3: The spaces in the building should have appropriate passive control measures

to limit solar gains


AWC N/A N/A


main entrance and waiting area YES (+9%) NO


cleaners N/A N/A

store N/A N/A

warehouse office NO (-59%) NO

ff circulation YES (+12%) NO

ff female wc N/A N/A

ff male wc N/A N/A

ff AWC N/A N/A

ff WC lobby N/A N/A

sf tea point NO (-73%) NO

Criterion 4: The performance of the building, as built, should be consistent with the

calculated BER

Separate submission

Criterion 5: The necessary provisions for enabling energy-efficient operation of the

building should be in place

Separate submission

EPBD (Recast): Consideration of alternative energy systems

Were alternative energy systems considered and analysed as part of the design process? NO

Is evidence of such assessment available as a separate submission? NO

Are any such measures included in the proposed design? NO

Page 3 of 6

Technical Data Sheet (Actual vs. Notional Building)

Building Global Parameters Building Use

Actual Notional

Area [m ]2

External area [m ]2

Weather

Infiltration [m /hm @ 50Pa]3 2

Average conductance [W/K]

Average U-value [W/m K]2

Alpha value* [%]

* Percentage of the building's average heat transfer coefficient which is due to thermal bridging

754

27964

SWI

5

6200

0.22

1.38

754

27964

SWI

3

6079

0.22

1.38

% Area Building Type

A1/A2 Retail/Financial and Professional services

A3/A4/A5 Restaurants and Cafes/Drinking Est./Takeaways

100 B1 Offices and Workshop businesses

B2 to B7 General Industrial and Special Industrial Groups

B8 Storage or Distribution

C1 Hotels

C2 Residential Inst.: Hospitals and Care Homes

C2 Residential Inst.: Residential schools

C2 Residential Inst.: Universities and colleges

C2A Secure Residential Inst.

Residential spaces

D1 Non-residential Inst.: Community/Day Centre

D1 Non-residential Inst.: Libraries, Museums, and Galleries

D1 Non-residential Inst.: Education

D1 Non-residential Inst.: Primary Health Care Building

D1 Non-residential Inst.: Crown and County Courts

D2 General Assembly and Leisure, Night Clubs and Theatres

Others: Passenger terminals

Others: Emergency services

Others: Miscellaneous 24hr activities

Others: Car Parks 24 hrs

Others - Stand alone utility block

Energy Consumption by End Use [kWh/m ]2

Actual Notional

Heating

Cooling

Auxiliary

Lighting

Hot water

Equipment*

TOTAL**

* Energy used by equipment does not count towards the total for calculating emissions.** Total is net of any electrical energy displaced by CHP generators, if applicable.

3.36

4.11

6.14

15

2.14

35.27

30.75

31.93

4.23

3.57

19.42

2.48

35.27

61.63

Energy Production by Technology [kWh/m ]2

Actual Notional

Photovoltaic systems

Wind turbines

CHP generators

Solar thermal systems

0

0

0

0

0

0

0

0

Energy & CO Emissions Summary2

Actual Notional

Heating + cooling demand [MJ/m ]2

Primary energy* [kWh/m ]2

Total emissions [kg/m ]2

106.96

92.06

15.6

156.74

119.32

24.8

* Primary energy is net of any electrical energy displaced by CHP generators, if applicable.

Page 4 of 6

HVAC Systems Performance

System Type Heat dem Cool dem Heat con Cool con Aux con Heat Cool Heat gen Cool gen

MJ/m2 MJ/m2 kWh/m2 kWh/m2 kWh/m2 SSEEF SSEER SEFF SEER

[ST] Split or multi-split system, [HS] Heat pump (electric): air source, [HFT] Electricity, [CFT] Electricity

Actual

Notional

50.8

97.9

56

57.7

3.5

33.2

4.3

4.5

6.5

3.8

4

0.82

3.6

3.6

4

----

3.6

----

Key to terms

Heat dem [MJ/m2] = Heating energy demandCool dem [MJ/m2] = Cooling energy demandHeat con [kWh/m2] = Heating energy consumptionCool con [kWh/m2] = Cooling energy consumptionAux con [kWh/m2] = Auxiliary energy consumptionHeat SSEFF = Heating system seasonal efficiency (for notional building, value depends on activity glazing class)Cool SSEER = Cooling system seasonal energy efficiency ratioHeat gen SSEFF = Heating generator seasonal efficiencyCool gen SSEER = Cooling generator seasonal energy efficiency ratioST = System typeHS = Heat sourceHFT = Heating fuel typeCFT = Cooling fuel type

Page 5 of 6

Key Features

The BCO can give particular attention to items with specifications that are better than typically expected.

Element U U Surface where the minimum value occurs*i-Typ i-Min

Wall 0.23 0.26 External Wall

Floor 0.2 0.22 Ground Floor

Roof 0.15 0.18 Roof

Windows, roof windows, and rooflights 1.5 1.53 curtain wall

Personnel doors 1.5 1.63 glazed door

Vehicle access & similar large doors 1.5 - No vehicle doors in project

High usage entrance doors 1.5 - No high usage entrance doors in project

Building fabric

U = Typical individual element U-values [W/(m K)]i-Typ2 U = Minimum individual element U-values [W/(m K)]i-Min

2

* There might be more than one surface where the minimum U-value occurs.

Air Permeability Typical value This building

m /(h.m ) at 50 Pa 3 2 5 5

Page 6 of 6


cpwp.com 11

10.0 Appendix D

1

26

52

78

104

130

156

182 208 234

260

286

312

338

364

A+A+

AA 0-250-25

BB 26-5026-50

CC 51-7551-75

DD 76-10076-100

EE 101-125101-125

FF 126-150126-150

GGOver 150Over 150

This is how energy efficient

the building is.25Net zero CO emissions2

More energy efficient

Less energy efficient

40

119

Buildings similar to this one

could have ratings as follows:

If newly built

If typical of theexisting stock

Energy Performance CertificateNon-Domestic Building

Energy Performance Asset Rating

Technical information Benchmarks

Certificate Reference Number:

0970-1945-9336-8972-6120

Main heating fuel: Other

Building environment: Unconditioned

Total useful floor area (m ): 2 754

Building complexity (NOS level): 5

Building emission rate (kgCO /m ): 2

2 15.56

This certificate shows the energy rating of this building. It indicates the energy efficiency of the building fabric and the heating, ventilation, cooling and lighting systems. The rating is compared to two benchmarks for this type of building: one appropriate for new buildings and one appropriate for existing buildings. There is more advice on how to interpret this information on the Government's website www.communities.gov.uk/epbd.

44

7 61

6

S K - 6 2 4 2 6 2 - 0 2 2 3 0 0

2 5 - 0 9 7 0 - 1 9 4 5 - 9 3 3 6 - 8 9 7 2 - 6 1 2 0 - S K 6 2 4 2 6 2 0 2 2 3 0 0 - D C L G x E P C g e n 2 0 0 8

This certificate has been produced by E P C g e n, a software module developed by B R E for C L G under contract with F M. The author of the program is J o s e O r t i z (o r t i z j @ b r e . c o . u k ). Some security features proves the authenticity of this document.

ONLY

FOR

ILLU

STRATIO

N


1

22

44

66

88

110

132

154

176 198 220

242

264

286

308

330

352


If you have a complaint or wish to confirm that the certificate is genuine

This is an Energy Performance Certificate as defined in SI2007:991 as amended

Details of the assessor and the relevant accreditation scheme are on the certificate. You can get contact details of the

accreditation scheme from the Government's website at www.communities.gov.uk/epbd, together with details of the

procedures for confirming authenticity of a certificate and for making a complaint.

Assessment Software:

Property Reference:

Assessor Name:

Assessor Number:

Accreditation Scheme:

Employer/Trading Name:

Employer/Trading Address:

Issue Date:

Valid Until:

Related Party Disclosure:

Recommendations for improving the property are contained in Report Reference Number: 9182-4077-9463-1602-9591

TAS v9.3.3 using calculation engine TAS v9.3.3

123456789012

Joe Byrne

ABCD123456

Couch Perry Wilkes

12 Aug 2016

11 Aug 2026 (unless superseded by a later certificate)

Not related to the owner

For advice on how to take action and to find out about

technical and financial assistance schemes to help make

buildings more energy efficient visit www.carbontrust.co.uk

or call us on 0800 085 2005

. . . . . . . . . .

. . . . . . . . . .

. . . . . . . . . .

. . . . . . . .

ONLY

FOR

ILLU

STRATIO

N


http://www.carbontrust.co.uk

building regulations part l2a assessment report

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