Architects are coming up with more and more complex roof designs these days, and we recognize that not all roofs are simple hip and valley roofs. There are more roofs with dormers, dutch gables, dropped eaves, cut-out sections etc, so we have developed a whole menu of features allowing you to modify the roof to suit these designs. The important thing to remember here is the fact that the software is constantly updating the areas and lengths when inserting new features, so there is no need to manually have to add a length of new ridge everytime a new dormer is inserted for instance.
In this section, we will transform the roof we originally constructed, to add some new features.
We will go from this;
Using the Mod-Roof menu.......
Obviously there will be many roofs where the architect has opted for different pitches of certain roof planes on the same roof. This can be handled easily and quickly using our Change Pitch command. You simply select the roof planes you wish to modify and enter the new slope or pitch. Because the roof is drawn up in 3 dimensions, any changes to the pitch will accurately change the length of the associated hips, valleys and ridges.
Inserting dormers is another simple exercise, using
only a few mouse clicks. Our software allows you to create either gable
or hip ended dormers, flat roof dormers or curved barrel dormers. We
have built in additional features allowing you to insert dormers at hip
apexes, or create gaps below the dormer. In the instance, we will simply
insert a dormer using the dialogue box shown.
overview Where there is a need to modify the eave line, for example a chimney stack, entrance way, or even to create a lowered eave at one point, we use a command called Atrium.
Using this option you get this:
...... or this (with a negative depth).......
Often, you have a number of different eave heights on the same job, and you will need to combine these different roof planes together to result in the correct geometry for the roof. Manually, this is one of the hardest things to calculate accurately, but with the use of various commands, including Project Gable and Intersect Planes this is achieved with ease.
In this instance, we see there is a garage roof joining onto the main roof but it's eave height is lower.
You may recall that we have built in a command in the Track Outline command allowing you to insert a Bay Window. We have also added this command into our Mod Roof menu offering you more flexibility as to the size and angle of your bay.
14. Cutting out sections of the roof
There will be times when you will need to cut a section of the roof away for a chimney stack or maybe a vent, or simply to butt up to an existing wall line. To achieve this, we have developed a command called Cut-Out. You are free to select which roof planes you wish to cut and the size of the cut-out.
To go to the next section - Section 3 - Selecting the Roof Material - Click Here
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