Building Envelope Systems and Assemblies
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Questions and Answers

What is the primary purpose of the foundation in a building structure?

  • To provide aesthetic appeal
  • To enhance energy efficiency
  • To regulate outdoor air pressure
  • To support the weight of the building (correct)

    • Which of the following is NOT a method for waterproofing a foundation?

  • Liquid applied asphaltic damp proofing
  • Sheet-applied membranes
  • Fiberglass insulation (correct)
  • Cementitious waterproofing

    • What component is commonly included in the wall assembly for moisture control?

  • Exterior cladding
  • Structural components
  • Fiberglass spray insulation
  • Vapor barrier (correct)

    • Which type of drainage system is commonly used around the perimeter of a foundation?

    <p>French drain</p> Signup and view all the answers

    What is the role of insulation in the roofing system?

    <p>To maintain a consistent indoor temperature</p> Signup and view all the answers

    In a roofing system, what protective layer is typically placed above the insulation?

    <p>Shingles</p> Signup and view all the answers

    What is the primary concern of inhaling fiberglass insulation?

    <p>Respiratory system damage</p> Signup and view all the answers

    What material is typically found between wood sheathing and shingles in the roofing system?

    <p>Tar sheeting</p> Signup and view all the answers

    What is a significant factor that can lead to different building envelope requirements even within the same climate?

    <p>Differences in direct sunlight exposure</p> Signup and view all the answers

    Which of the following is NOT a fundamental goal of a successful building envelope?

    <p>To minimize structural weight</p> Signup and view all the answers

    What can weaknesses in the building envelope potentially lead to?

    <p>Moisture infiltration and mold</p> Signup and view all the answers

    Why is understanding building envelope design methods critical in architectural practice?

    <p>It minimizes ongoing maintenance problems</p> Signup and view all the answers

    What does the building envelope encompass?

    <p>Entire exterior surface including walls, doors, and windows</p> Signup and view all the answers

    What is a possible consequence of moisture infiltration due to envelope weaknesses?

    <p>Risk of mold and mildew growth</p> Signup and view all the answers

    What role does innovative architectural design play in building envelopes?

    <p>It requires attention to material detail and specification</p> Signup and view all the answers

    Who are the primary stakeholders concerned with liability when building envelope problems arise?

    <p>Architects, builders, and occupants</p> Signup and view all the answers

    What is the primary function of the building envelope?

    <p>To provide a physical barrier between indoor and outdoor environments</p> Signup and view all the answers

    Which factor significantly influences the energy consumption of buildings?

    <p>Mechanical systems such as air conditioning and ventilation</p> Signup and view all the answers

    What role does airtightness play in building design, particularly in humid climates?

    <p>It reduces unwanted air infiltration and moisture ingress</p> Signup and view all the answers

    What is the required permeance level for a vapor barrier to effectively prevent moisture intrusion?

    <p>One perm or less</p> Signup and view all the answers

    How can building envelope detailing be improved to ensure airtightness?

    <p>By focusing on construction joints and entry points</p> Signup and view all the answers

    What potential impact can moisture ingress from the exterior have on a building's air conditioning system?

    <p>It can burden the air-conditioning system operations</p> Signup and view all the answers

    What is one of the key objectives of the Philippine Green Building Code?

    <p>Adopt efficient practices and technologies to reduce energy consumption</p> Signup and view all the answers

    Which construction detail is essential for sealing windows and door assemblies?

    <p>Application of a continuous membrane along the joints</p> Signup and view all the answers

    What is a significant benefit of having outer doors that seal well?

    <p>They improve the thermal efficiency of a house.</p> Signup and view all the answers

    Which of the following is NOT a consideration for maintaining a durable building envelope?

    <p>Allowing weather elements to be trapped inside.</p> Signup and view all the answers

    What can the early deterioration of building envelope components usually be remedied by?

    <p>Relatively inexpensive remedies.</p> Signup and view all the answers

    The term 'Axis' in the context of performance refers to what?

    <p>A line established by two points in space.</p> Signup and view all the answers

    How does 'Hierarchy' contribute to the building envelope?

    <p>It helps in organizing spaces based on size and placement.</p> Signup and view all the answers

    What role does local government play in building standards?

    <p>They try to align universal standards with local practices.</p> Signup and view all the answers

    What is meant by 'Transformation' in architectural design?

    <p>Preserving an architectural idea through a sequence of discrete transformations.</p> Signup and view all the answers

    Which factor is least likely to impact the performance of a building envelope?

    <p>The surrounding cosmetic landscaping.</p> Signup and view all the answers

    What is the primary purpose of weather stripping and gaskets around window and door frames?

    <p>To reduce air leakage</p> Signup and view all the answers

    Which components should be sealed in sealed utility services to prevent air leakage?

    <p>Any penetrating conduit, ducting, or piping</p> Signup and view all the answers

    What type of barrier is recommended for walls to prevent moisture penetration?

    <p>Vapor/moisture barrier</p> Signup and view all the answers

    How should the ceiling joints and openings be addressed during construction?

    <p>Sealed with tape</p> Signup and view all the answers

    What is the primary direction of heat flow in a building during winter?

    <p>From the building to the outside environment</p> Signup and view all the answers

    What is a key feature of the closed shell concept in building envelope design?

    <p>It limits external contact with the environment</p> Signup and view all the answers

    Which of the following best describes the purpose of the building envelope?

    <p>To govern thermal and permeability properties</p> Signup and view all the answers

    Which method is NOT a way that heat transfer occurs in buildings?

    <p>Refraction</p> Signup and view all the answers

    What is the significance of thermal insulation in building design?

    <p>It blocks or slows the flow of heat.</p> Signup and view all the answers

    What is the purpose of joint flashing in roofing?

    <p>To prevent water intrusion at seams</p> Signup and view all the answers

    What is recommended for floors to prevent moisture seepage?

    <p>Application of a water barrier and joint fillers</p> Signup and view all the answers

    How does thermal bridging affect a building's R-value?

    <p>It can lower the overall R-value.</p> Signup and view all the answers

    In the context of heat transfer, what does conduction refer to?

    <p>Heat transfer by direct contact of particles.</p> Signup and view all the answers

    What happens when materials with different thermal resistances are placed in series?

    <p>The thermal resistances are added together.</p> Signup and view all the answers

    Which aspect plays a role in improving the thermal resistance of a building element?

    <p>Presence of an air film at the surface.</p> Signup and view all the answers

    What is the purpose of calculating the total R-values in a building?

    <p>To evaluate the building's thermal performance.</p> Signup and view all the answers

    Study Notes

    Building Envelope Systems and Assemblies

    • A building envelope is a physical barrier between the interior and exterior of a building, protecting the interior from environmental factors like precipitation, wind, temperature, humidity, and UV radiation.

    • The envelope is comprised of various components and systems.

    Components of the Building Envelope

    • Opaque Components: Walls, roofs, slabs on grade, basement walls, opaque doors.

    • Fenestration Systems: Windows, skylights, ventilators, doors.

    Function of Building Envelope

    • Support: Provides structural support against internal and external loads.

    • Control: Regulates water, air, condensation, and heat exchange between the interior and exterior of the building.

    • Finish: Aesthetics and appearance of the building.

    Physical Components

    • Components include foundation, wall assemblies, roofing systems, glazing, doors, any penetrations.

    Foundation

    • Transmits building loads to the underlying substrate (often reinforced concrete walls, slabs, and footings).
    • Designed to control moisture and thermal energy transfer.

    Roofing Systems

    • Important for weather protection.
    • Typically consists of shingles, tar sheeting, vapor barriers, and wood sheathing.
    • Fiberglass spray insulation may also be included in attic areas.

    Glazing, Doors, Other Penetrations

    • Glazing comprises window, door, and skylight panels; primarily transparent to let light through.
    • Doors are crucial envelope components (often the largest openings).
    • Other penetrations include chimneys and vents.

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    CE 35 – Building Systems Design PDF

    Description

    This quiz explores the key components and functions of building envelope systems. You'll learn about opaque components, fenestration systems, and their crucial roles in structural support and environmental control. Test your knowledge of how these elements work together to form the protective barrier of a building.

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