00 Errata

01 Occupant’s life cycle cost report: crit 2 - KBCN1656

Crit 2 currently says: An Occupant's report, based on the most up-to-date LCC analysis (see crit 1), is available to potential occupants prior to a commitment to purchase. However Crit 2 should say: An Occupant's report, based on the most up-to-date LCC analysis (see crit 1), is available to potential owner prior to a commitment to purchase. This will be corrected in the next reissue of the technical manual.

03 Construction record: crit 5.b. - KBCN1655

Crit 5.b. currently says: The record is available to: Occupants on request, as part of any visual defects inspections and when moving in. It needs to be available for the duration of the building warranty in place. However Crit 5.b should say: The record is available to: Potential owners on request, as part of any visual defects inspections and when moving in. It needs to be available for the duration of the building warranty in place. This will be corrected in the next reissue of the technical manual.

Erratum- Representative sampling of indoor air - KBCN1645

There is a discrepancy in the manual within the methodology section ‘Representative sampling of indoor air’. Please refer to the below instead: Sample of indoor air principles

Representative sampling of indoor air is permitted where multiple homes on a site incorporate the same building products or material specification.
Different home ‘groups’ found on site must be covered by the representative indoor air quality tests, the different ‘groups’ are distinguished by the size, type, layout or location of homes on a site. For example, 1-bed apartment, 2-bed mid-terrace, 3-bed semi-detached, or 4-bed detached must each be representatively sampled.
The sample size should be sufficiently large to demonstrate consistent performance across groups of homes.

Sample strategy for developments The sample size can be modified to suit the developments specific environment and design if recommended by the accredited organisation undertaking the sampling. In this case a suitable sampling strategy must be produced that outlines the different groups outlined above, the rate of sampling per group type and how the sampling strategy still meets the intended requirements of the issue. Justification for the sample group types The Formaldehyde and TVOC concentrations are predominantly influenced by emissions from internal finishes and fittings. The concentrations of the emissions will depend on the source volume, the source rate, the room volume and the ventilation rate. This can be different based on size, type and layout of the building. In addition, the location of the homes should be taken into account as post-construction testing can be influenced by when the home was completed, with homes finished first having a lower emission rate, by external emission factors such as proximity to a road and a variety in ventilation strategies for homes in different locations such as in a high rise building.

This will be corrected in the next reissue of the technical manual.

Erratum: ‘Cycle storage requirements’ definition - KBCN1641

There is an error in the dimensions in point 1. 2. and 3 of the 'Cycle storage requirements' definition as follows: The distance between each cycle rack and surrounding obstructions(e.g. walls) allows for bikes to be easily stored and accessed. Cycle racks must be a minimum of: 1. 2m long ×0.75m wide for one bike. 2. 2m long ×1.5m wide for two bikes. 3. 2m long ×2.5m wide for four bikes. Please refer to KBCN0257 instead of the above.

Inspection and Completion – Crit 2 correction - KBCN1520

Crit 2 currently says: The results of the visual defects inspection and any outstanding remedial work are reported and given to occupants before they move in as part of their home information. However Crit 2 should say: The results of the visual defects inspection and any outstanding remedial work are reported and given to the potential owner as part of their home information. This will be corrected in the next reissue of the technical manual.

Issued to correct error in crit 2.

Minimum requirement - KBCN1606

The minimum requirement '02 Approved Document Q compliance' says crit. 2 is applicable to Wales. This is not correct. Crit 2 is only applicable to Northern Ireland. Projects in Northern Ireland must comply with Approved Document Q for England or Wales. This will be corrected in the next reissue of the technical manual.

Post-construction measurement- TVOC concentration using BS ISO 16000-6: 2021 VOCs in air by active sampling - KBCN1642

Where BS ISO 16000-6: 2021 VOCs in air by active sampling is used, the TVOC concentration measurement can be performed over a 40-60 minute period.