In this tutorial we cover all the Building Design and Construction Systems: Roof Plan Vignette, Stair Vignette, and Ramp Vignette:
Roof Plan Graphic Vignette Tutorial
Roof Scope:
- Upper and lower roof
- Clerestory requirements
- Roof planes
- Flashing
- Crickets
- Skylights
- Gutters
- HVAC
- Vents
Fatal Errors
- Missing elements
- Clerestory location
- Roof planes overlap
- Improper roof slopes – use the least
- Natural light requirements for rooms without windows
- Highest ridge height
- Complicated roof – keep it simple
- Poor HVAC location (too close to edge of building)
- Improper roof elevations – do the math – don’t forget the structure depth and ceiling heights.
- Downspout locations
- Too much volume – work the slopes to minimize differences between ceiling heights and roof elevations.
- Surfaces sloped in wrong directions
- Crickets per program.f
Ramp Graphic Vignette
Stair Graphic Vignette
Accessibility
Be a code expert
- Stair and Ramp are code problems
- Keep solution simple – orthogonal solution
- Look for clues
- Doors – how many are shown
- Don’t minimize exit clearance
- Doors into the space = doors out of the space
- Look out for obstacles in layout
- Use sketch tools – rectangles – to represent ramps
- Consider exiting circulation
- Maintain corridor widths throughout
- Computer grader looks at residual space
- Make sure it is accessible
- Don’t overbuild – provide minimum requirements.
- Changes in direction
- Will require 5 foot x 5 foot landings
- Check solution – railing can stick in but not more than 4” or program requirement if different.
– Fatal Errors
- Program
- Missing elements – railing
- Edge of existing slab violated
- Design Logic
- More than 1 stair/ramp
- Residual space unusable
- Inefficient solution
- Correct slope
- Meet minimum of code
- Unclear circulation
CODE
- New doors swing correctly
- Riser height/ramp slope
- Stair/ramp width too small
- Missing railings / guardrails
- Extension of railings (per program)
- Landings not 5’ x 5’ minimum
- Obstructed circulation
- Virtual landings (5’ x 5’) at bottom of ramp missing
NOTE: All NCARB graphic vignette software can be found at http://ncarb.org/en/ARE/Preparing-for-the-ARE.aspx
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