The cut list, the flashing schedule and the merchant order, off the same drawing.

The cut list is the drawing, counted

Nothing in the job pack is typed twice. The sheet lengths are the sheet runs off the drawing, the ridge metres are the ridge lines, the valley metres are the valley lines. Change a measurement on the roof and the list changes with it.

What comes out is what a merchant can price and a crew can lay:

• Roof sheets — quantity at each length, by profile and gauge
• Ridging and flashings — ridge, hip, valley, barge, apron, change-of-pitch, each listed as 1 @ 6.8 m rather than a total
• Gutter and downpipes — with the fittings that go with the profile
• Underlay, screws and rivets, counted off the actual sheet and flashing metres
• Pipe flashings — a dektite and a back-tray for every penetration
• Boxed penetrations — the five-piece set a chimney needs

Lengths, not totals

A flashing line that says "42 m of barge" is not an order. The merchant folds and cuts to length, and 42 metres could be six pieces or fifteen. RoofMap lists each piece — 1 @ 6.8 m, 1 @ 3.7 m — because that is the form the order has to be in, and because it is the form the crew can check against the roof.

Wastage is added per piece rather than as a percentage on the total. A percentage is a guess that is wrong in both directions: generous on a simple roof, short on a cut-up one.

The two things that get left off orders

Back-trays and boxed-penetration flashings are the two items that reliably get found on the roof rather than on the order. Both are automatic here.

Every pipe penetration raises two lines, not one: the dektite for the pipe size, and the back-tray behind it, with its length worked out from the pipe and the sheet profile. A boxed penetration brings a back flashing, two sides, a front apron, and a saddle from the ridge to the top of the box.

The whole job's flashing metres, on screen

Pricing shows one roof at a time, which is right for pricing and dangerous for checking. So the strip above the priced material carries the whole job's flashing metres — every roof added up, shared edges counted once.

If that number reads low against what you paced out on site, a line is missing somewhere. It is the fastest check there is on a take-off, and it is deliberately the one number you cannot get to by looking at a single roof's tab.

It is a designer, not a report

Click any field and edit it. Re-quantify a row, change a length, delete one, add one. Add a page, delete a page, reorder them. Drag any of the roof maps — detailed, basic, the sheet layout, the sheet calculation check — onto a page and it drops in as a movable, resizable picture.

What prints is exactly what is on screen. Save as PDF for the crew; Order Roof sends the material order to the merchant, showing you the cut-list summary in the popup first.

The order follows what the customer chose

If the customer upgraded the grade, the gauge or the gutter on their proposal, that is what the merchant is quoted. The specification on the job pack follows the selections rather than the defaults you started from — which is the gap that used to send an order out as corrugate and 0.40 for a customer who had paid for 5-rib and 0.55.