Thermly Help

Appearance

Your first H1 report ​

This walkthrough takes you from a plan PDF to a consent-ready H1 report using the plan-first workflow and a sample assembly. Allow about fifteen minutes for a simple single-storey house. Each step links to the fuller guide for that task.

You need a plan PDF with at least a floor plan and a roof plan, and a known dimension on the drawing (a stated room size or a scale bar) so you can calibrate.

1. Create the project ​

From the Dashboard, click New H1 project, give it a name, and open it in the H1 Compliance page. More: Setting up a project.

2. Set the climate zone ​

In Project Information, set the Climate zone. Type the site's NZ postcode and Thermly looks up the zone, or pick one of the six H1/AS1 6th edition zones (Appendix C) directly. The zone selects the reference building your design is compared against.

3. Attach the plan ​

In Plan PDF (optional), attach the architectural plan set. The file uploads securely to your account and stays available to view and download whenever you reopen the project. More: Uploading and calibrating your plan.

Read the title block for you

With a plan attached, ✨ Read project information from plan can pre-fill the site address, client, designer and consent reference from the drawing's title block, for you to check and correct.

4. Calibrate the scale ​

Open the plan, pick the Calibrate tool, click two points on a known dimension, then enter the real distance. Everything you draw afterwards is measured against that scale.

Calibrate the page you are about to measure. A new diagram can inherit the scale from another page as a convenience, but if that page is plotted at a different scale the inherited areas will be wrong. Thermly tints an inherited scale amber and shows "Scale inherited from plan - re-calibrate for accurate areas" so you know to check it. See Re-calibration.

5. Take off the elements ​

This is the heart of the plan-first workflow. Using the toolbar (full detail in The plan take-off):

  • Walls - use the Line tool to trace each wall run; length × stud height gives the wall area.
  • Roof / ceiling - use the Zone tool to trace the roof plane, then set the Roof pitch so the sloped area is right.
  • Floor - use Zone or Rectangle to trace the floor.
  • Openings - with the Opening tool, click a wall to drop a window or door, then type its width × height. Openings net out of the wall area automatically.
  • Skylights - with the Skylight tool, click the roof and enter the skylight size.

Each shape carries a live area readout as you draw. Assign each shape to an assembly (next step), then click Save diagram - the marked-up diagram is embedded in your report.

Tracing a roof plane on the plan take-off canvas.

6. Assign a sample assembly ​

Every element needs an assembly. To get a result straight away, assign one of the sample assemblies Thermly ships - for example "Vented attic, R6.0 ceiling insulation" for the roof, and a framed-wall sample for the walls. Pick it from the shape's Paint as selector on the plan, or from the element row on the H1 page.

The sample produces a correct calculation immediately. When you are ready to reflect the real build-up, build your own assembly (it is the same short layer-by-layer form) or swap products in place from the H1 page.

7. Read the verdict ​

The Heat-loss check footer shows PASS or FAIL and your headroom against the reference building, updating live as you change the design. If it fails, the per-element rows and the hard-rule checks show why. More: Reading the H1 report.

8. Fill in the details and generate ​

Complete Project Information (site address, client, designer, consent reference) and Prepared by (your name and organisation) - these appear on the report cover and headers. Then click Generate H1 compliance report.

Thermly renders a PDF: the heat-loss result, the construction schedule and build-ups, the required disclosures, your plan diagrams, and a declaration block for the preparer and reviewer to complete. Review it, satisfy yourself it is correct and complete for the building, and it is ready to attach to a consent application. More: Generating your H1 report.

9. Save ​

Click Save to keep the project on the Dashboard. You can reopen, revise, and re-generate at any time.

What next ​