Complete public sample · No account
Convert site slope into the horizontal space it needs
Read percent slope as a ratio and check whether a route can fit the site's supplied constraints.
Open the complete sample →ARE 5.0 PPD · Foundations refresher library
Design foundations: from principles to design decisions
Understand why a method applies, work a case, then choose a route under fresh conditions.
NCARB provides examination formulas, structural resources and case-study material. Refresh site response, system selection and tradeoffs before comparing design alternatives. The full PPD program is in invited development review; paid enrollment remains closed.
Two public samples; full sequence for the owner and invited pilot participants. The two public samples are complete learning experiences.
Start with a sample or select the concept you need.
The list identifies the available refreshers. A concept being taught here does not mean it is absent from your examination reference.
Complete public sample · No account
Screen solar access together with site constraints
Use a defined sun condition to test a design option rather than relying on orientation alone.
Open the complete sample →Invited PPD review access
Convert net program area into a budgeted gross building
Keep net-to-gross efficiency distinct from an allowance added to net area.
Open this refresher →Invited PPD review access
Compare glazing solar gain on a consistent basis
Hold exposure and area constant when evaluating a change in solar heat gain coefficient.
Open this refresher →Invited PPD review access
Match thermal zones to occupancy and exposure
Use schedules and simultaneous needs to choose the control arrangement before selecting equipment capacity.
Open this refresher →Invited PPD review access
Screen structural alternatives against every mandatory condition
Treat depth, span, vibration and program fit as distinct criteria before comparing cost.
Open this refresher →Invited PPD review access
Compare life-cycle costs on a common present-value basis
Include recurring costs when the project's decision rule extends beyond initial construction cost.
Open this refresher →Invited PPD review access
Separate footprint constraints from total floor-area constraints
Screen coverage, setback envelope and floor area ratio together before maximizing a program.
Open this refresher →Use the check to choose your next study action.
Choose a response before opening the explanation. If the basis or assumption is unclear, revisit the worked case and follow its related lesson. If your reasoning fits, move to targeted practice with new conditions. A single learning check does not establish mastery or predict a passing result.
Original teaching material; AI-assisted content and numerical checks. Independent specialist review and candidate calibration remain pending.