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GENERAL

Technical Clarification
EDGE Homes Registration

Technical Clarification Number
GEN00-T-EDG-0110

Guidance
2017-08-25

Defining the extent of a project site.

When registering a project, the entire development site must follow the following criteria:

  • Must share the same physical site/address, even if on adjacent erven (the single continuous site boundary is as defined by the project AP)
    • Should be recognizable as distinct development to the public, e.g. have a distinct name*, street address, and entrance/s. It must include the proportion of amenities that serve the homes on the site, e.g. landscaping, parking, etc.
  • Must be of the same building type (Homes).
  • Must be Certified as the same name (allowance for phases permitted*)


* Projects are able to be phased, as long as it still meets the criteria set above.

Where by a project site does not meet any of the above criteria, separate projects must be registered, Or an eligibility ruling request must be submitted to the GBCSA before registration.

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Technical Clarification
Site Audit Sample Size

Technical Clarification Number
GEN00-T-EDG-0056

Guidance
2017-03-23

The Accredited Professional/Auditor is required to conduct site audits for a sample of the units per typology. The sample should be equal to the square root of the number of units +1 for each typology.

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Technical Clarification
SANS Building Regulations

Technical Clarification Number
GEN00-T-EDG-0060

Guidance
2017-03-23

SANS Building Regulations standards are referenced in the EDGE software to ensure that if a project meets EDGE requirements it also meets SANS requirements. If there are issues with SANS compliance text alerts will appear below the energy section and will also appear in the downloadable pdf (if the user chooses to generate it). Note that EDGE should not be used as a compliance tool for SANS as there are additional requirements mandated by SANS that are not included in EDGE.


​Figure 8. SANS alerts for SA are given at the end of the EE measures when project meets EDGE standard of 20% energy saving but does not meet SANS requirements. This alert is specific to South Africa.

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Technical Clarification
Typology Rationalization

Technical Clarification Number
GEN00-T-EDG-0063

Guidance
2017-03-23

Typology is defined as one particular design of a residential unit(s) that has all aspects of the design the same or similar for all units, including but not limited to aspects such as:

Area

must be within 10% of each other for each unit

Occupancy

must be the same

Layout

must be similar

Windows

must be similar

Shading

must be similar

Materials

must be similar

Edge measures pursued

must be the same

Percentage of Improvement

must be within 10% of each other for each unit across each category (energy, water and materials


To assess typology groupings project teams are required to review the above criteria and provide the GBCSA with the following:

· Layouts indicating unit areas per typology

· EDGE Reports (PDF Downloads) per typology

The project team is requested to also provide a description and justification for the typologies applicable to the project based on the above criteria. The typology rationalization process must be completed before the project is registered with the GBCSA.

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Technical Clarification
EDGE income categories defined

Technical Clarification Number
GEN00-T-EDG-0064

Guidance
2017-03-23

The EDGE income categories are:

Defined Income Category

Market Value per Unit

RDP

State subsidy

GAP

R350 000 – R850 000

Middle income

R850 000 – R1,2m

High income

R1,2m and above

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Technical Clarification
Sample of Delivery Notes

Technical Clarification Number
GEN00-T-EDG-0067

Guidance
2017-03-23

Where delivery notes are required within the Material Efficiency Measures section of the User Guide, it is acceptable to provide a sample of delivery notes. The actual appended delivery notes to verify compliance with the measure only need to be the very first and final delivery notes (with dates indicated). A first and final set of delivery notes for each material type must be included within the submission.

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