Energy Reports & Window Schedules for Melbourne Builders
For a new-build window and door quotation, the architectural drawings, window schedule and energy report should be reviewed together. They answer different parts of the specification and help JL identify the frame, glazing and opening requirements before the order is confirmed.
What to Send JL for a Builder Quote
- Current architectural plans and elevations
- Window and door schedule
- Energy report / NatHERS documentation where available
- Project address
- Required programme
- Supply-only, delivery or installation scope
Send plans for builder project review →
What Does the Window Schedule Tell Us?
The window and door schedule normally identifies opening references, nominal sizes, configurations and other project-specific notes. JL checks the schedule together with the plans and elevations because revisions or discrepancies can affect the quotation and final order.
What Does the Energy Report Tell Us?
Energy documentation can specify or constrain window performance requirements. In NatHERS, U-value and SHGC are whole-window system values: the U-value includes the effect of the frame, glass, seals and spacers, while SHGC describes solar heat gain through the complete window system.
JL therefore compares the project requirement with the proposed complete window configuration rather than treating a centre-of-glass value as the whole-window result.
View JL whole-window U-value & SHGC data →
For a broader builder checklist covering thermal, structural/weather, safety glazing and acoustic requirements, see Window Performance Specifications for Builders.
Essential, Thermal or Thermal Plus?
The energy report can help determine whether a standard aluminium system is appropriate or whether a thermally broken system should be considered. JL’s customer-facing range is organised as Essential, Thermal and Thermal Plus, with final selection based on the project requirements rather than internal profile codes.
Do Not Rely on Glass Alone
Double glazing or Low-E glass can improve thermal performance, but the complete window result also depends on the frame, spacer, seals, opening type and size. This is why an energy-report requirement should be checked against whole-window data where available.
What If the Plans and Energy Report Do Not Match?
Do not assume one document can simply be ignored. Flag the discrepancy before final approval so the builder, designer, energy assessor or other relevant project party can confirm the controlling requirement. JL can identify the window-related discrepancy, but project-specific design and compliance decisions remain with the appropriate project professionals.
Programme Options
Suitable projects may have access to JL’s approximately 4-week local production option. Broader custom supply packages commonly use an indicative 8–10 week planning allowance. Availability depends on the confirmed system and project scope.
View current JL lead-time options →
Window Schedule Checklist Before Requesting Supplier Pricing
For a Melbourne builder comparing window suppliers, a clear schedule helps each quotation cover the same openings. Keep the opening reference, quantity, dimensions and operation together, then record the glazing, colour, screens and reveal requirements for each item. State whether the dimensions describe the building opening or the manufactured frame.
- Opening references: use the same W or D number on plans, elevations and schedules.
- Configuration: distinguish fixed panes from opening sashes and show combined window layouts.
- Glazing: identify clear or obscure glass and any performance requirements shown in the project documents.
- Frame and finish: note the proposed system and colour, or ask JL to compare suitable options.
- Supply scope: identify screens, reveals, hardware, delivery and installation inclusions.
- Revision: include the document date and revision so pricing can be checked against the current design.
When a Window Changes After Quotation
If W05 changes from fixed glazing to an awning window, mark W05 on the revised schedule and send the updated elevation. Ask for the affected item to be reviewed before approval rather than assuming the previous price and specification still apply. Changes to operation, dimensions or glass can require the proposed configuration to be checked again.
Quoting a Complete Window and Door Package
Send the door schedule with the window schedule, including sliding or hinged operation and the required panel arrangement. Review our window and door supply service for Melbourne builders for project coordination, or our supply-only window and door packages if installation is managed by your team.
Send the Current Drawing Set
For the most useful quotation, send the latest revision of the plans, schedule and energy documentation together. If documents are revised after quotation, identify the new revision before order approval.
Builder — Send Your Plans or email [email protected].
