National Calculation Methodology (NCM) - Scottish Government
National Calculation Methodology (NCM) - Scottish Government National Calculation Methodology (NCM) - Scottish Government
Activity Type Description 51 Residents kitchen Common area kitchens used by residents, e.g. in residents' halls. 52 Sales area - chilled A sales area designed to accommodate a considerable quantity of fridges/freezers such as a supermarket or food hall. 53 Sales area - electrical Sales areas designed to accommodate considerable electrical equipment loads such as lighting sales areas and IT/TV/Hi-Fi sales areas. 54 Sales area - general All Sales areas which do not have a large concentration of fridges/freezers or electrical appliances. 55 Server Room For areas such as computer server spaces with 24hr low-medium internal gains from equipment and transient occupancy. For an area with 24hrs high gains from equipment, use the 'Data Centre' activity. 56 Storage area Areas for un-chilled storage with low transient occupancy. Equip = 2; Heat Set Point = 20; Cool Set Point = 23 57 Storage area - chilled A storage area containing items which need to be chilled. The area itself can be conditioned. Lux = 100; Equip = 25; Heat Set Point = 13; Cool Set Point = 25 58 Storage area - cold room (
Construction and Glazing Databases 93. The user can specify the U-value and thermal mass information for a particular wall, roof, or floor for which the construction is accurately known. Where the construction is less precisely known, the user can make use of the NCM Construction and Glazing Databases. These databases contain a library of opaque constructions (for walls, roofs, floors and doors), glazing, and frames (for windows and rooflights) covering different regulation periods and different generic types of construction. 94. The user may access a particular construction directly from the library by selecting first the generic type of construction and then selecting the particular construction which appears to match most closely the actual construction. Once the user has selected the construction, the database provides a U-value and thermal mass and, in the case of glazing, solar factors, and these values are then fed directly into the calculation. 95. For cases where the user has only minimal information, the interface to SBEM has an inference procedure. When using the inference procedure, the user supplies basic data such as the sector (building use), the building regulations that were in use at the time of construction and a description of the generic type of construction. The type of construction which most closely matches the description identified in the inference will be selected and used to provide the U-value and thermal mass value used in the calculation. Table 11: Scottish opaque constructions in the NCM Construction Database ID Category Construction Name 86 Curtain wall Curtain wall (SCO) 2002- 2006 195 Solid ground floor Solid ground floor (SCO) 2002-2006 251 Pitched roof, insulation at rafters 295 Cavity wall (partial fill) 296 Non-structural wall (metal) cladding system 357 Cavity wall (partial fill) Pitched roof, insul. at rafters (SCO) pre-1975 Cavity wall (SCO) 2002-2006 Metal cladding wall (SCO) 2002-2006 Cavity wall (SCO) 2007 Section 6 (gas heating) 364 Solid (masonry) wall Solid wall (SCO) 2002 Part J 369 Weatherboard or rainscreen cladding Weatherboard, tile-hung (SCO) 2002 Part J 419 Vehicle access door Vehicle access door (SCO) 2007 Section 6 420 Vehicle access door Vehicle access door (SCO) 1997 Part J 421 Vehicle access door Vehicle access door (SCO) pre-1997 37 U-value [W/m 2 K] κm1 [kJ/m 2 K] κm2 [kJ/m 2 K] 1.2 4 4 NO 0.25 36 36 NO 0.25 12 12 NO 0.3 11.7 129 NO 0.3 7 7 YES 0.25 11.7 129 NO 0.3 54 180 NO 0.3 11.7 11.7 NO 1.5 4.93 4.93 NO 1.5 4.93 4.93 NO 5.7 1.76 1.76 NO Metalcladding
- Page 1 and 2: Directorate for the Built Environme
- Page 3 and 4: Contents. Contents 3 List of Tables
- Page 5 and 6: BER Building Emission Rate BSD Buil
- Page 7 and 8: 2 Approved Software Tools. 5. Non-d
- Page 9 and 10: of building or building features. T
- Page 11 and 12: Building Fabric 26. The U-values in
- Page 13 and 14: Methods that use flow networks are
- Page 15 and 16: egarded as being mechanically venti
- Page 17 and 18: d. The electricity used by fossil-f
- Page 19 and 20: . For other spaces, divide the illu
- Page 21 and 22: Table 6: Carbon dioxide emission fa
- Page 23 and 24: 4 Energy Performance Certificates (
- Page 25 and 26: 5 Input Data to Approved Tools. 74.
- Page 27 and 28: d. Any fuel used in generating the
- Page 29 and 30: Table 8: Measurement and other conv
- Page 31 and 32: pressure filtration is also defined
- Page 33 and 34: Building Type Description 16 Non-re
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- Page 39 and 40: ID Category Construction Name 518 P
- Page 41 and 42: ID Category Construction Name 565 P
- Page 43 and 44: 101. It may also be that more compl
Activity Type Description<br />
51 Residents kitchen Common area kitchens used by residents, e.g. in<br />
residents' halls.<br />
52 Sales area - chilled A sales area designed to accommodate a considerable<br />
quantity of fridges/freezers such as a supermarket or<br />
food hall.<br />
53 Sales area - electrical Sales areas designed to accommodate considerable<br />
electrical equipment loads such as lighting sales areas<br />
and IT/TV/Hi-Fi sales areas.<br />
54 Sales area - general All Sales areas which do not have a large concentration<br />
of fridges/freezers or electrical appliances.<br />
55 Server Room For areas such as computer server spaces with 24hr<br />
low-medium internal gains from equipment and<br />
transient occupancy. For an area with 24hrs high gains<br />
from equipment, use the 'Data Centre' activity.<br />
56 Storage area Areas for un-chilled storage with low transient<br />
occupancy. Equip = 2; Heat Set Point = 20; Cool Set<br />
Point = 23<br />
57 Storage area - chilled A storage area containing items which need to be<br />
chilled. The area itself can be conditioned. Lux = 100;<br />
Equip = 25; Heat Set Point = 13; Cool Set Point = 25<br />
58 Storage area - cold room (
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