Two steps, not three

A hip roof used to take three passes: the outline, every face, then every line. In 3.0 you draw the outline and one or two sides. The board works out the remaining faces, the hips, valleys and ridge, and the pitch of every face. You check it and move on.

Everything new in 3.0

A designer board that finishes the roof for you

Draw the outline, add one side, and TARC fills in the other faces, hips, valleys and ridges.

Two steps instead of three: trace the outline, add one or two sides, done.
TARC suggests the faces the shape implies, like the other half of a gable or the opposite hip end.
Ridges, hips, valleys, eaves and barges are worked out from the shape. Accept them with a click.
Corners snap, lines straighten, and you can duplicate a side instead of redrawing it.

Pitch, measured for you

Every face takes its pitch from Google’s 3D roof data. No pitch gauge, no guessing.

Each face fills in its own pitch from Google’s 3D roof data for the address.
Change any face in two clicks, in degrees or rise per metre.
Estimates are marked with a ~, and TARC tells you when an address has no 3D data.

Sheet optimisation

A cutting list with the real length of every sheet, down the fall, ready for the roll-former.

Sheets run with the fall, and hip faces list their real stepped lengths.
Faces split only by a wall are joined into one run, so you never order short offcuts.
Eave and barge overhangs are built into every length.
Same-length sheets are grouped per face, with a roll-former CSV that matches exactly.

Smarter materials

The materials list builds itself from the roof, using 6,500+ real products.

The cart is built from the traced roof: sheets, ridges, flashings, battens, fixings and more.
6,500+ products from Lysaght, Stratco, Metroll, Stramit and Fielders.
Your own products and prices come first when TARC picks alternatives.
A supplier-ready order list, grouped by product, to send straight to your supplier.

Package comparison

One click builds Good, Better and Best options for the same roof, side by side.

“Let TARC build the options” finds like-for-like alternatives for every line.
Best adds the upgrades the job doesn’t have yet, such as insulation, ventilation and gutter guard.
Quantities never change between packages. It’s the same roof at three prices.
Save a set as a template, and it scales itself to the next roof.

Sharper proposals

A client-ready proposal with the roof diagram, the options and a total that adds up to the cent.

Branded PDF with the traced roof diagram and a clear cost breakdown.
Good, Better and Best laid out side by side for your client.
Materials, labour, markup, discount and GST add up to the total, to the cent.
Send a private link your client can open, sign and pay through.

An upgraded AI assistant

TARC AI answers roofing, pricing and how-to questions, and drafts your follow-ups.

Ask about materials, pricing, scheduling or how to do something in TARC.
It drafts follow-up messages for quoted leads in seconds.
It remembers the conversation, so you can keep building on an answer.
Open it from anywhere in the app.

Easy to pick up. Built to be relied on.

Totals that add up

Every line on the proposal adds up to the total, to the cent, GST included.

Nothing guessed silently

Estimates are marked, and missing data is flagged instead of filled in quietly.

Undo for every step

Every change on the board can be undone and redone, so nothing is lost by trying.

One board for every photo

Satellite, drone photo or plan: the same tools and the same results on all three.

Our smartest, fastest estimator yet.