Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 1

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Robert Jonkman, P.Eng.Director, Codes and Standards, Structural Engineering

April 2018

Effective R value calculator for walls

Spring Training Camp, Hidden Valley ResortApril 2018

Building Science Spring Training 

April 2018

Effectiver calculator

Building Science Spring Training 

Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 2

Online catalogue with a three-page summary of over 10,000 wall configurations.

Calculates Reff.

Includes Durability assessment.

April 2018 Building Science Spring Training 

Report

Wall components and individual R values

Assembly R values

Durability rating

Summary and notesApril 2018 Building Science Spring Training 

Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 3

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Studs 2x4, 1-2x6, 2-2x6, 2x8 studs at 8”, 12”, 16”, 19.2”, 24” o.cand CLT

Sheathing: 3/8 and 7/16 OSB; 3/8 and ½” plywood.

Vapour retarder options: 6 mil poly, smart, and vapourretarder paint

Cavity insulation: none, batts (R14-28) and spray foam (½, ¾, and 2 lb).

Exterior insulation with wood sheathing: foil faced polyiso, EPS, XPS, Mineral wool (up to 7.5” thick).Weather barrier: building paper, spun bonded polyolefin and liquid applied.

Cladding: Brick, vinyl, EIFS, fibre cement, wood, steel

Gypsum boardAvailable components

Note: not all components are available in all assembliesApril 2018 Building Science Spring Training 

April 2018

Select components… refine with key components

Building Science Spring Training 

Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 4

Key component: Wood sheathing

April 2018 Building Science Spring Training 

April 2018 Building Science Spring Training 

Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 5

This is the 2nd storeyof the Brampton Ontario house after 90kph wind

April 2018 Building Science Spring Training 

April 2018 Building Science Spring Training 

Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 6

Make sure enough wood sheathing

http://www.cbc.ca/news/canada/toronto/house‐blown‐over‐1.4006173April 2018 Building Science Spring Training 

http://www.cbc.ca/news/canada/toronto/house‐blown‐over‐1.4006173April 2018

Make sure enough wood sheathing

Building Science Spring Training 

Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 7

April 2018 Building Science Spring Training 

April 2018 Building Science Spring Training 

Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 8

April 2018 Building Science Spring Training 

April 2018 Building Science Spring Training 

Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 9

April 2018 Building Science Spring Training 

http://

effectiver.ca

/calculator/wall.p

hp?id=

1436

Durability rating

April 2018

Durability check

Building Science Spring Training 

Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 10

Durability check Durability rating based on computer modeling, field experience, and physics

April 2018 (brick wall, 1” foil-faced polyiso, poly v.b.)

Required Outboard Inboard ratio

Building Science Spring Training 

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April 2018

Just implemented … 2018

CLT wall Midrise‐appropriatewall

“Net‐zeroready” wall

Building Science Spring Training 

Building Science Spring Training April 2018

CWC Robert Jonkman, P.Eng. 11

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April 2018

Project team:Top experts in building scienceProject Initiator Robert Jonkman Canadian Wood Council

Project Lead and Publishing Expert

Magdalena Krawczyk

buildABILITYCorporation

Builder Lead and Field Expert

Andy Oding Building Knowledge Canada

Technical Lead and Building Science Expert

Chris Timusk Timusk Consulting, George Brown College

Technical Project Advisor Michael Lio buildABILITY Corporation

Technical Project Advisor Gord Cooke Building Knowledge Canada

WUFI Expert Panelist Graham Finch RDH Consulting

WUFI Expert Panelist Chris Schumacher RDH ConsultingBuilding Science Spring Training 

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April 2018

Steering Committee:Dedictated industry and end usersAlejandra Nieto Roxul Inc.BJ Yeh APA – The Engineered Wood AssociationBob Wilson R.S. Wilson Building Inspection & Consulting Inc.Christopher McLellan Natural Resources CanadaCory McCambridge APA – The Engineered Wood AssociationDave Henderson Brookfield HomesGillian Haley ERA Architects Inc.John Hockman JLHockman Consulting Inc.Jieying Wang FPInnovationsPaul Smith Mattamy Homes CorporationPeter Birkbeck Icynene Inc.Peter Culyer EIFS Council of CanadaRichard Kadulski Solplan ReviewRobert Marshall CertainTeed SAINT‐GOBAINTodd Rogers City of St. CatharinesSalvatore Ciarlo Owens Corning CanadaSilvio Plescia Canada Mortgage and Housing CorporationBuilding Science Spring Training