207 — Roof Line, in cv-web

The cv-web companion to tutorial 107. The roof line is what the top of the panel gets cut to.

Note

This lesson also exists in the browser. Work it in ConstructiVision on the web — same steps, same values, so you can follow either and end up with the same panel.

Before you start

Open cv-web, load the ConstructiVision Sample Building sample project, and switch to Panel mode in the top bar.

Where it is — and why that is consistent

In AutoCAD, Roof Line has its own dialog with six segments. In cv-web it is a set of fields on the panel itself — Sloped, Height L, Height R, Angle L, Angle R, Roof Line L — not a feature group like Brace Points or Rect Blockouts.

That looks like a divergence and is not. cv-cad treats it the same way underneath: the roof line has no section of its own in the panel record. It is stored alongside the ledger data, marked as a roof-line row. Both products treat the roof line as an attribute of the panel top rather than a standalone feature — they simply present that differently.

Two heights make the slope

Set the two heights apart and the top slopes between them. Set them equal and it is a flat parapet. That is the whole of it, in either product.

The slope is 4:12

Not an example number. Every roof slope in this shop is 4:12 — four inches of rise for every twelve of run:

run 240"  ->  rise = 240 x 4/12 = 80"

So a twenty-foot panel rises eighty inches across its width, exactly as tutorial 107 sets it in AutoCAD. If two heights do not differ by a third of the run, either it is not a 4:12 segment or a number is wrong — the same check in both tools.

Honest differences

  • No modal dialog. cv-cad opens Roof Line Details; cv-web edits the fields in place.

  • Segments. cv-cad gives you six segments for a panel under a ridge; cv-web describes the panel top with heights and angles. For a single-slope panel they say the same thing.

  • No sheet border. The browser shows the panel, not a shop drawing sheet.

What to take away

Two heights and a slope that is always 4:12. Where you type them has changed; what they mean has not.