Rafter tool

PlusSpec Community PlusDesignBuild
1

Hi team,

Have created a roof frame under a roof. The rafter ends protrude out past the fascia and can’t be adjusted using the edit roof framing option.
Hope you can help, thanks John

2

Hi John,

This is because the roof overhangs into the gutter & since this is the geometry used to generate the roof framing the rafters start there & not where the fascia is. We do have a change coming for this but there isn’t an ETA just yet.

In the meantime, I would recommend following this process:

  1. Click into the base geometry of the roof face. Note: This is the same place where you select the roof to generate the roof framing.
  2. Trace along the fascia using the SketchUp Line Tool. Note: Another face may appear under the roof when all fascia have been traced, which should be deleted.
  3. Select the roof face(s) & generate the roof framing.
3

Hi John, the reason you are seeing the rafters protrude through the fascia is that they have been created from the roof cladding, which actually overhangs the fascia by 50mm or 2 inches.
I am not sure what version of PlusSpec you are using? if it is the latest version you will see a checkbox that enables you to override this, and PlusDesignBuild and PlusArchitect will automatically deduct the overhang of the roof into the gutter and create the rafters to work with the fascia. Yet if you are using an older version I suggest using the sheeting or the sarking to create the rafters. You may need to lift the rafters up after drawing unless you have set your batten or sheeting depth to zero. I hope that helps.

4

Hi Andrew,

I have another rafter tool question for you, I have been unable to find an answer elsewhere.

When I create a roof frame (Skillion Roof Tool in this example) all of the rafters get a plumb cut except for the end rafters. Is there a setting or something that could be causing this? It doesn’t matter a whole lot other than trying to ensure the takeoff is accurate. As per my image the rafters are being squared on the end and not tying into the ridge beam correctly.

image
image521×514 103 KB

Any help is appreciated.

Cheers,

James

5

Hi James,

From my testing this only happens for the gable rafters when the roof framing is generated for skillion roofs or individually for each face of hip roofs. To resolve this & get the result you’re after, I would recommend using the Split Beam & Extend Beam features. Here are the steps I’d recommend to do this.

  1. Double-click into the rafter group until the gable rafter can be selected.
  2. Right-click on the gable rafter & select + BEAMS > Split Beams. Note: This option won’t appear if you’re not at the correct level from Step 1.
  3. Left-click at a point along the rafter that’s away from the ridge beam & press Enter to complete the action.
  4. Delete the small section of rafter nearest the ridge beam.
  5. Repeat Step 2 but select Extend Beams instead.
  6. Hover over the side of the ridge beam where you want to extend to & left-click to complete the action.
  7. Repeat these steps for other instances of this in the model.

Please note that the above changes will be reverted & will need to be redone if the roof framing is edited using the :roof_framing_tool: Roof Framing Tool after completing this process.

Split & Extend Gable Rafters To Hip Beam

6

Great, Thanks Grant. Appreciate the quick reply. I did notice it only happened in the skillion roof option.

Cheers,

James