LP Prototype Specifications

4. LP Prototype Specifications

Construction Assemblies

Walls

• EC04 Exterior Precast Wall Panels 11"
• EW6.b 2x6 Wood Envelope Wall
• EW8.b 2x8 Wood Envelope Wall
• EW4.w 2x4 Wood Exterior Wing Wall
• PW4.a 2x4 Wood Partition
• PW6.a 2x6 Wood Partition
• PW01 2x6 Wood Partition Loadbearing
• PW.a 2x4 Build-Out Wall
• PW.b 2x6 Build-Out Wall

Floors

• F31 5" Exterior CIP Concrete Slab-on-Grade (cw Ball Management System)
• F32 5" Exterior CIP Concrete Slab-on-Grade
• F33 5" Interior CIP Concrete Slab-on-Grade
• F34 10" Hollowcore Slabs cw. 5" Topping (cw Ball Management System)
• F35 10" Hollowcore Slabs cw. 2" Topping

Ceilings

• C01 LGS Suspended Drywall Ceiling
• C02 Applied Drywall Ceiling

Roofs

• R02.a Wood Truss Low Slope Cold Roof cw. Two-Ply Mod-Bit Roofing
• R05.b Wood Truss Low Slope Canopy Roof cw. Two-Ply Mod-Bit Roofing
• R08.b 16" OWJ Wood Framed Flat Warm Roof cw. Two-Ply Mod-Bit Roofing

Roof Soffits

• Sa Built-Up Wood Soffit cw. Aluminum Lap Panel - Vented

Performance Requirements

Project Summary — Climate Zone Reference

⚠ Items above marked with adoption/overlay notes vary by permit date or local bylaw — confirm against the current in-force code text before design freeze.

Opaque Assembly Minimums (NECB 2020, Prescriptive Path)

• Steel-stud walls almost always need continuous exterior insulation (mineral wool/XPS/EPS) to reach the effective-R target — stud-bay batt alone won't comply.
• Mass wall targets are lower than frame wall targets — NECB credits thermal mass/storage benefit.
• Below-grade requirement applies to foundation walls enclosing heated space; unheated below-grade space has separate (lower) requirements.
• Heated slabs (in-floor radiant, heated loading docks) trigger the slab-edge minimum; unheated slabs are exempt.
• Prescriptive path only. Trade-off (NECB 3.3) or whole-building performance path (NECB 4 / Div. B Part 8) can permit lower R in one assembly if compensated elsewhere — common for high-glazing commercial buildings.

Glazing / Fenestration Performance (NECB 2020, Prescriptive Path)

• USI tightens as HDD rises — triple glazing or thermally broken curtain wall typically needed in Zone 7A to hit the lower end.
• Above the ~40% FDWR cap, NECB pushes the project toward trade-off or performance-path compliance — common for curtain-wall-heavy commercial designs.
• SHGC isn't fixed on the simple prescriptive path but becomes a real driver once you're in energy modelling or under a provincial overlay (e.g., BC Energy Step Code).
• Kelowna specifically: confirm the applicable BC Energy Step Code tier with the City of Kelowna — Step 3+ commercial targets can be materially stricter on glazing/airtightness than the NECB prescriptive minimum shown here.

Sources & Assumptions

• Primary reference: NECB 2020, Division B — Table 3.2.2.2 (opaque assemblies) and Table 3.2.2.3 (fenestration/doors), by climate zone.
• Structural/life-safety reference: NBC 2020, where a province hasn't issued its own building code text.
• Climate zone data: NECB 2020 Appendix C (Climatic Design Data). HDD18 values above are approximate — confirm the exact figure for each project site before finalizing the design basis.
• Provincial adoption — critical: Every province amends/adopts NECB/NBC on its own schedule. ON (SB-10), AB (Alberta Building Code), and BC (BC Building Code) may reference an earlier or amended edition depending on permit date. Confirm the in-force edition with each province's building code office.
• Local overlays to check: Toronto Green Standard; BC Energy Step Code tier (Kelowna); any municipal energy/GHG bylaws in Calgary/Edmonton.
• Compliance path assumed: Simple/prescriptive path only. Trade-off and whole-building performance paths can yield more favourable outcomes, especially for FDWR above ~40%.
• Effective vs. nominal R-value: All values above are effective R (post thermal-bridging), not nominal insulation R-value.
• Recommended next step: Confirm every value against the primary source, cell by cell, for each project's exact address before design freeze.

Programa for LP Proto

AF## /// Architectural Finishes

Elevation Notes

CW## /// Curtain Walls

Detailed CW Specifications

• For codes based on NBC 2020
• Calculations based on AAMA/WDMA/CSA 101/I.S. 2/A440-17 (NAFS-17) & CSA A440S1-19 CANADIAN SUPPLEMENT TO NAFS-17
• FEB 2017 | CSA A440S1-19
• Building Information
• Location = Calgary, AB
• Terrain Type = Open Terrain - where open terrain is level terrain with only scattered buildings, trees or other obstructions, open water or shorelines.
• Building Type = Part 3, Commercial (CW)
• Product Information
• Product Height Off Grade = > 10m
• Performance Requirements, Class CW
• Minimum Performance Grade (PG) = CW30
• Minimum Positive Design Pressure = 1440 PA
• Minimum Negative Design Pressure = -1440 PA
• Minimum Water Penetration Resistance Test Pressure = 260 PA
• Minimum Canadian Air Infiltration/Exfiltration = A2

Curtain Wall Panel Schedule

Curtain Wall Mullion Schedule

D## /// Doors