Overview
Interior space requires a level of control over the quality and condition of the environment including temperature, humidity, moisture, air quality, airflow, lighting, and acoustic properties. The control of the interior environment starts with the building envelope. The building envelope is a system of assembled elements and spaces that work together to regulate the relationship between the interior environment and the exterior environment. The performance of the building envelope can be studied and measured to ensure it is providing the designed regulation of environmental elements.
This assignment focuses on the design of the exterior wall assembly for the case study building, utilizing masonry as the primary material. Each student will develop a system for the exterior wall, document it in two and three dimensions, annotate its components to demonstrate their role in the assembly.
Assignment Context:
This assignment introduces building assemblies that will be developed and enhanced in the Building Technology courses that continue the sequence.
Prerequisites:
Understanding of three-dimensional projection and material properties and modules, completion of the required readings.
Recommended Text:
Ching, Francis. Architecture Graphics. John Wiley and Sons, 2009.
Plagiarism:
Student work submitted must be original and developed individually. Tracing is not acceptable. All construction lines and notations during drawing construction are to remain visible at final submission. Drawings without construction lines (guidelines) will be downgrading significantly.
Due Date(s)
6pm day before Class #11 (see Schedule)
Learning Outcomes
| Learning Outcomes | Assessment Methods |
| Upon successful completion of this assignment the student shall be able to: | To evaluate the students’ achievement of the learning objectives, the professor will do the following: |
| Develop coordinated, accurate, and consistent set of two and three-dimensional drawings documenting the exterior wall assembly. | Review student drawing set for consistency, orthographic projection and coordination between drawings, and dimensional accuracy. |
| Understand some of the basic principles used in the appropriate selection of interior and exterior construction materials, finishes, products, components, and assemblies based on their inherent performance, including environmental impact and reuse. | Review student notebooks and drawing set submission for proper application of material properties, rules of thumb, and performance analysis. |
| Understand and apply basic principles of performance analysis. | Review student performance analysis diagram for application of conventions and accuracy of analysis. |
Instructions
NOTE: All drawings to be 1/2″=1′-0″ on 12″x 18″ sheets unless otherwise agreed with Professor Loo
Final Deliverables:
- Plan Detail
- Wall Section
- Axon Detail
Follow these steps:
- Layout out reference lines for plan detail (structural grid lines and primary guide lines
- Working in the sequence of construction, layout each layer of elements, building up the piers of the exterior wall in the plan detail
- Study and layout the window, interior window sill, and exterior window sill
- Refine the line weights to provide proper reading of drawing, with special attention to the poche line weight.
- Using the plan detail as an underlay, begin development of the wall section, starting with reference lines (top of finished floor, top of interior window sill, bottom of stone lintel, structural grid line.)
- Pay special attention to window sill and head conditions.
- Using the plan detail as an underlay (rotated 30 degrees) begin development of axon detail with reference/grid lines.
- Complete each of these drawings. Scan on flatbed scanner and format per the course formatting guidelines (found here)
- Submit all formatted files to the dropbox folder found here
Grading Rubric
| ApproachingBenchmark | Benchmark | Approaching Capstone | Capstone | |
| Lineweight Distinguishing elements especially cut lines (poche), grid lines, transparent elements, finishes | Lines are consistent thickness and quality, in the correct alignment | In addition, two line weights are distinguishable, including cut line | In addition, three or more line weights are distinguishable, including some finish textures | In addition, transparency is clear, centerlines, grid lines, dimension lines are shown w/ correct line type and line weight. |
| Drawing Organization and Accuracy Setting out of grid and the relationship of elements to the grid is accurate | Structural Grid is established | In addition, structural grid is dimensioned accurately and labeled correctly | In addition, major elements (walls, columns) are accurately placed in relation to the structural grid | In addition, all drawing elements are carefully located in relationship to centerlines and the structural grid |
| Construction / Guidelines Guidelines and constructions were utilized in the careful construction of each drawing | Guidelines are used for overall geometry of drawings | In addition, guidelines indicate orthographic projection for 3-d vignette construction. | In addition, guidelines indicate geometric center of spaces, perimeters of spaces, and grid locations of key elements | In addition, guidelines are accurate, working off of grid lines and centerlines to each major element and guiding alignments. |
| Envelope System The exterior envelope system is developed based on principles of exterior wall assembly. | General configuration of exterior wall and assembly is depicted | In addition, masonry modules and coursing is accurate | In addition, insulation and vapor barriers are correctly positioned | In addition, all elements of the assembly are properly labeled and annotated |
| Drawing Conventions + Coordination Standard methods of drawing and documentation of key data and elements are utilized and coordinated | Drawings are properly scaled and provided with a title including course #, student name, professor name, semester + year | In addition, detail drawings are referenced to each other using cut lines and tags | In addition, drawings are organized on sheet to ensure proper projection from plan to elevation to section detail | In addition, drawings are consistent and coordinated and indicate clear understanding of drawing types and layers of information |
Resources
- Module 2 Sketchup Support Videos: https://openlab.citytech.cuny.edu/arch1231/assignments/module-2-exterior-wall-studies/
- For some refresher resources on drawing plans, sections, and elevations, see this link: https://openlab.citytech.cuny.edu/arch1231/drafting-support-resources/
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