Thermally Broken Facades TClip System for Rear Ventilated Rain Screen Facades

- February 22, 2013 page 1

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Products

Design

Installation

Engineered Assemblies’ Values   Celebrate Architecture   Better buildings matter for the world   Uniting the house of Design with the field of Construction

Forces influencing design of TClip

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Contractor in mind: • Constructability • Cost • Adjustability

Architect in mind: • Aesthetic freedom • Allow for greater amounts of insulation

Code/ Building Envelope Science • Morrison Hershfield

Directions in the Code

•  Higher thermal resistance requirements and increasing over time •  Effective R Value, not nominal •  Thermal resistance set by geographic location •  Less window areas, more opaque walls

•  Based on ASHRAE 90.1, being adopted in Ontario, Quebec, BC and those using NBC.

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Note: Code changes are for the whole building. There are various ways for you to comply. Although EA is an active participant with the Code, like you we rely on the NRC and the Consulting Engineering community for clarity on specific projects. A good overview is available in both French and English at http://www.nationalcodes.nrc.gc.ca/eng/presentations_necb/presentation.php?pres=3-envelope

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What EFFECTIVE R Value do you need?

Geographic Location

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Effective Insulation requirements going up, by zone in the country

Thermal Bridges – yes the old ways just wont work. Now We Know!

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Its all about metal going through the insulation in an opaque wall

Anything bridging from warm to cold causes a thermal bridge AND Breaks the plane of the insulation AND Worse the more insulation required

Old Ways Wont Do

What were the choices in the past

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Old Ways Wont Do

Source Morrison Hershfield

How we got here

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Passion for something

better

Materials Knowledge

Simple Building

Principles

Committed to

Architecture

Façade Design

Cladding Installation

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Its Time

Why TClip patent pending

•  Thermally broken façade suitable for Rear Ventilated Rain Screen ( RVRS ) •  Non combustible construction •  Adjustable for subwall misalignment •  Cladding joints not tied to stud locations – design freedom •  Easy construction, cost effective

–  fewer rows of clips than others, no insulation stickpins, insulation installed easily and completely, simple window, door and edge conditions

•  No premium over double girt system •  Suitable for weather barrier (as required by European DIN Standard) •  Suits all structures; steel stud, block, concrete •  Black vertical girts – corrosion resistant and best aesthetic •  Traditional installation practices, no training needed •  3 clear field insulation thicknesses •  Designed to European DIN Standards, with prescribed airflow •  Supports Engineered Assemblies materials •  Made in Canada

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Trends in Design

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RVRS interest

Higher R Values

Building Envelope

Engineers on team

Building Performance

Better Design

Building Aesthetic

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Thermal Performance of Engineered Assemblies Thermal Clips Summary

Presentation based on the Executive Summary written by

- February 22, 2013 page 16

Executive Summary The Engineered Assemblies Thermal Clip System is an aluminum thermal clip

system for attaching rain-screen cladding systems for steel stud wall assemblies with exterior insulation. Morrison Hershfield was contracted by Engineered Assemblies Inc. (E.A.I) to model the system in order to provide thermal performance values.

The system is comprised of aluminum clips connected to horizontal and vertical sub-girts that support rain-screen panel cladding. The clips are attached to a steel stud back-up wall.

Thermal breaks are provided at the connection between the sub-girt and clips via a cork/neoprene pad and between the clips and exterior sheathing via an aerogel

insulation pad. See Figure 1 for a simplified rendering.

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Source: Morrison Hershfield

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•  Meets the prescriptive requirements for non- residential steel stud walls in ASHRAE 90.1-2007/2010 for all climate zones.

•  Performance of the system is validated through Modeling and the Finite Element Analysis (FEA)

•  Designed for Mid- and High-Rise (Non-Combustible) building envelopes

•  Engineered to accommodate Façade panels generally 8-26mm in thickness

•  Engineered for wind loads up to 50psf •  Optimized vertical spacing – 900mm up to 1200mm apart

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TClip Performance Engineering Complete

Results of Old Girt Systems

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One example – Designer wanted R25. With Vertical / Horizontal girts, ended up with R17 (U.058 or 69% effective – not compliant!)

Thermal Performance modeled for 3 clear field dimensions and vertical Tclip spacing

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94% effectiveness or 47% which do you prefer

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Thermal Profile of TClip System

Continuous Z Bar Thermal Performance

TClip Thermal Performance

Model holds for all insulations

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The slope of lines are similar, so effective thermal resistance is independent of - Thickness of insulation - Type of insulation

So pick the best insulation you can afford, and TClip provides you the ASHRAE 90.1 and highest effective solution

Conclusion

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The O

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ard

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Horizontal Girt

The N

ew S

tand

ard

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Adjustable Horizontal Girt

TClip

Thermal Breaks

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T100

T150

T125

Three Clear Field Dimensions - Adjustable for wall alignment

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Plan

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Why TClip patent pending

•  Thermally broken façade suitable for Rear Ventilated Rain Screen ( RVRS ) •  Non combustible construction •  Adjustable for subwall misalignment •  Cladding joints not tied to stud locations – design freedom •  Easy construction, cost effective

–  fewer rows of clips than others, no insulation stickpins, insulation installed easily and completely, simple window, door and edge conditions

•  No premium over double girt system •  Suitable for weather barrier (as required by European DIN Standard) •  Suits all structures; steel stud, block, concrete •  Black vertical girts – corrosion resistant and best aesthetic •  Traditional installation practices, no training needed •  3 clear field insulation thicknesses •  Designed to European DIN Standards, with prescribed airflow •  Supports Engineered Assemblies materials •  Made in Canada

- February 22, 2013 page 32

What matters with Thermally Broken Façade Solutions

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System Design Freedom =

Cost effective

Non combustible

Suited for Ventilated facade

Works w All Insulations

Design freedom = clips free to be anywhere so Architect can create with no limits from substructure

What panels?

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Engineered Assemblies Panels

Competitive Façade Panels

Metal Panels

Stone

Open to ideas!!!

EA has all the info for you

- February 22, 2013 page 35

Youtube Installation Animation

Design Guide

MH full report

LnL Preso

Sources of more information

- February 22, 2013 page 36

http://www.engineeredassemblies.com/products/t-clip-thermally-broken-facade-substructure/articles,-links-and-references.aspx

NECB / NRC

Morrison Hershfield website

CAGBC, OBEC, CEBQ

Many others

- February 22, 2013 page 37

John Kubassek

Blair Davies

Engineered Assemblies

info@engineeredassemblies.com

905 816 2218

Go to www.engineeredassemblies.com - Full MH report - Executive Summary - Youtube video showing installation