Building Type

Performance classification GJ/m²

Occupancy

Good

Satisfactory

Fair

Poor

Very Poor

Office

Single-shift, 5 day week

<0.7

0.7 - 0.8

0.8 - 1.0

1.0 - 1.2

>1.2

Factories

Single-shift, 5/6 day week

<0.8

0.8 - 1.0

1.0 - 1.2

1.2 - 1.5

>1.5

Warehouses

Single-shift, 5/6 day week

<0.7

0.7 - 0.8

0.8 - 0.9

0.9 - 1.2

>1.2

School

Single-shift, 5 day week

<0.7

0.7 - 0.8

0.8 - 1.0

1.0 - 1.2

>1.2

Shops

Single-shift, 6 day week

<0.7

0.7 - 0.8

0.8 - 1.0

1.0 - 1.2

>1.2

Hotels

Continuous, 7 day week

<1.3

1.3 - 1.5

1.5 - 1.8

1.8 - 2.2

>2.2