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Fsi module 1_v2 introduction

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Ventilated Facade prestudy for Facade Systems Inc Webinars and Lunch and Learns

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Fsi module 1_v2 introduction

  1. 1. Confidential 2018 1
  2. 2. Ventilated Rainscreen systems LNL_Introduction_v2 2020
  3. 3. Learning concepts • Set assumptions for Ventilated Rainscreen Facades • Common themes • Design in process; detailing, specification • Design through to construction • Combustibility and code • Constructability • Value Engineering • Other systems • Precast • Curtain wall • Brick 2018 Confidential 3
  4. 4. What Matters with Ventilated Rainscreen Facades • Building Envelope: Insulation, thermal bridging, air, water and vapour. • External of structure best, continuous, more = higher effective R Value • Issue of thermally bridging solved • AVB and Weather membranes can also be continuous. • Between studs; last resort, bridged, ineffective. • But we are “wrong” because code allows imperfect envelopes because modelling can reduce importance of better building envelope. • Enforcement insufficient? • Rainscreen • Vertical girts, typically 1” deep. Can be wood, galvanized steel, aluminum • Wall open top and bottom, protected by bird screen • Often open at horizontal joints; aesthetic choice • Panels, attached in various ways, allowed to expand and contract at will • Detailing for aesthetics, durability, constructability and structure. 2018 Confidential 4
  5. 5. Confidential 2018 5 All examples of ventilated rainscreen Early modern example Ventilated aluminum rainscreen Water and weather shedding and protection part of rainscreen idea Ventilated panel architecture of today
  6. 6. 2018 Confidential 6 So What ➢ Open top and bottom = ventilation = moisture management ➢ Thermally broken insulated façade = effective
  7. 7. Learning concepts • Set assumptions for Ventilated Rainscreen Facades • Common themes • Design in process; detailing, specification • Combustibility and code • Constructability and construction expectations • Value Engineering • Other systems • Precast • Curtain wall • Brick 2018 Confidential 7
  8. 8. 2018 Confidential 8 Concept Design Detailing and Specifying Engaging Contractors (Tender) • Design intent • Finish • Shape and direction • Aesthetic • Panel choices • Role of supplier / agent • Narrow panel choices • Layout • Code compliance • Budget • Role of supplier / agent • Details with other elements • Not too much! Be sure Contractor owns it. • Narrow choices of installers • Spec • Role of supplier / agent • Tighten budget • Contractor credentials • Shop drawings expectations • Value Engineering • Constructability • Role of supplier / agent Common Themes: Design in process; detailing, specification
  9. 9. 2018 Confidential 9 Common Themes: Combustibility and code Basics; egress and spread Facades • Can ULC S114, 135 and 134 • 134 impact in Ontario • Alternate solutions • Insulation choices • Membranes Interiors • S102 • Fire code • Structural issues / role of engineer • Most of key issues not covered in Code, so important to refer to Manufacturer’s Instructions • CCMC and Part 3
  10. 10. 2018 Confidential 10 Common Themes: Constructability and Construction Constructability • Weather, vapour and air barriers • Insulation in right place and thermally broken. • Subgirt assembly and spacing, including clips • Allowing for expansion and contraction • Structural engineering • Trade handoffs • Framing to Cladding • Cladding to Windows/Doors • Cladding to Roofing Construction: what happens on site • Safety = Quality!! • Confidence in contractor • Wall acceptance handoff • Spaces, gaps • Process • Accuracy • Waste
  11. 11. 2018 Confidential 11 Common Themes: Value Engineering do it now. • Impact of design • Layout • Complexity; details • Labour • Experience • Learning curve • Benefit of speed • Product • Base price • Waste
  12. 12. 2018 Confidential 12 Other systems: What matters to you? Ventilated Façade Precast Curtain Wall Brick Stone Design Freedom Detailing Durability Thermal performance / investment Price range Speed Environment EIFS Metal Panel Siding Residential products Spandrels
  13. 13. 2018 Confidential 13 Solid Phenolic Brick Rainscreen Fibre Cement Rainscreen Siding Terra Cotta Rainscreen Stone Composite Rainscreen
  14. 14. 2018 Confidential 14

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