2017 Colorado Chapter of the ICC Educational Institute March 6-10, 2017

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The Colorado Chapter of the International Code Council will be hosting the 32nd Annual Colorado Educational Institute the week of March 6, 2017, once again at the newly renovated Marriott Denver Tech Center. 

The Educational Institute will again offer 13 full-week course paths with instruction by some of the best instructors in the country.  Class offerings will include a number of new classes as well as updated versions of their most popular classes, all based on the 2015 International Codes and the 2014 National Electrical Code.  Registration costs will remain at $400 for the week or $90 a day, including lunch.

The Colorado Chapter is an Approved Preferred Provider for ICC Continuing Education.  Classes will also be eligible for continuing education Learning Units as required by the American Institute of Architects (AIA) and designed to meet the continuing education requirements for Professional Development Units required by the State of Colorado Electrical Board (DORA).

Again, the Colorado Educational Institute will be held March 6-10, 2017, at the Marriott DTC, 4900 S Syracuse Street, Denver, CO.  Room rates at the Marriott will be $139/night.

https://coloradochaptericc.org/education/education-institute/

Robby Schwarz

Who to Contact:

Robby Schwarz
Principal, Director of Builder Relations

Email Robby
720-838-0677

Field Fusion Recap: The Disconnect Between Fire & Energy Codes

The Q3 Field Fusion event delved into air-sealing and sound transmission challenges in multi-family units through a guided discussion that included perspectives from Code Officials, Insulators, and Raters. Read more here.

There are many complexities that accompany building townhomes and duplexes.  For example, townhomes and duplexes built with common fire separation walls (party walls) are twice as leaky as single family houses that are twice their size.

Why?

The shaft wall, which we see most often in Colorado, is open directly to the outside through the designed gap between the shaft liner and the framing, thus creating a leaky assembly.  An additional complexity arises when the reduction of unit-to-unit sound transmission is taken into account, which requires correctly installed insulation.

EnergyLogic’s August 31st Field Fusion delved into the details of these assemblies through a guided discussion that included perspectives from Code Officials, Insulators, and Raters.

Clarification: What Part of the Shaft Wall Assembly is Fire-rated?  recap-of-ff-image_1

We must first define what part of the shaft wall assembly is fire-rated, as the entire assembly is not.  This is an important distinction that allows for more air sealing options once understood.

In chapter 3 of the IRC, Section R302 “Fire Resistant Construction” and Section R302.2 “Townhouses” states, “The common wall shared by two townhouses shall be constructed without plumbing or mechanical equipment, ducts or vents in the cavity of the common wall. The wall shall be rated for fire exposure from both sides and shall extend to and be tight against exterior walls and the underside of the roof sheathing.”

This statement in the IRC is our first indication that the two layers of sheetrock in the shaft liner wall are the fire-rated two-hour wall, designed to slow the spread of fire from unit to unit.  Thus, the two layers of 1” drywall cannot be penetrated with ducts.

The framing (which is held off the fire-rated assembly by a clip) often has ducts or plumbing in it and is specifically designed to burn and separate from the two-hour assembly when the clip melts.  This allows one unit to burn and fall before fire is able to pass through to the adjacent unit.  The UL (Underwriters Laboratory) listing for many of these assemblies’ references section 705 of the International Building Code (IBC) which states in Section 705.2 “Structural Stability”, “Fire walls shall have sufficient structural stability under fire conditions to allow collapse of construction on either side without collapse of the wall for the duration of time indicated by the required fire-resistance rating.”  This is another indication that UL listings and the code are in agreement that the fire assembly is the two layers of 1” drywall and not the framing adjacent to the drywall.

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It is important to point this out because throughout Colorado there is not a common understanding of what constitutes a shaft liner fire-rated party wall assembly.  Some jurisdictions still hold that the assembly is the drywall, air gap, clip, framing and interior drywall while others hold that it is as explained above.   What is consistent is the understanding that the assembly must be built continuously from the foundation to the roof deck.

EnergyLogic suggests having a discussion with jurisdictions, in an effort to:

  • Ensure a common understanding of this assembly
  • Determine how the assembly will be air sealed to control airflow to meet the air leakage requirements of the energy code.

One thing to note: jurisdictions throughout the state require that the two layers of sheetrock run continuously from the foundation to the roof deck, but not the entirety of the rest of the assembly.  The most conspicuous example is the interior drywall, which is always missing on the ventilated attic side of the party wall.

Challenge: How to Achieve 3 ACH50?

Now that a common understanding of the assembly has been achieved, it is time to determine how the assembly can be air sealed in order to meet the air leakage target of 3 ACH50 for the 2012 and 2015 IECC.  Most jurisdictions have not amended the requirement to meet this airtightness level, so pre-planning is crucial in order to be successful.

The clip that holds the framing off the two-hour party wall assembly creates a 1” gap that is connected directly to the outside at the front and back of the unit, as well as to the attic.  This is where the UL listing of the assembly comes into play. UL is an American safety consulting and certification company that provides the one or two-hour rating for fire-rated assemblies by testing them in a laboratory environment. The UL listing for these assemblies is often mixed up with code’s definition of the assembly, which creates confusion regarding what materials are allowed to be used to seal them.

UL often refers to fire-blocking materials.  Fire blocking materials are usually defined within the UL assembly and can be any one of the following:

  • 2” nominal lumber
  • Two thicknesses of 1” nominal lumber with broken lap joints
  • One thickness of 0.719” wood structural panel with joints backed by 0.719” wood structural panel
  • One thickness of 0.75” particleboard with joints backed by 0.75” particleboard
  • Gypsum board, including 1” DensGlass Ultra® Shaftliner and 5/8” DensArmor Plus drywall
  • Batts or blankets of mineral wool or fiberglass
  • Other approved materials installed in such a manner as to be securely retained in place shall be permitted as an acceptable fire block (Section 717.2.1, 2006 IBC). recap-of-ff-image_3

As some fire blocking materials are air barriers and some are not it important to choose a material that can stop the flow of air.  EnergyLogic has seen the most success when builders tackle fire blocking on each individual floor.

Application: The Picture Frame Method

When looking at the party wall assembly, envision a picture frame around the perimeter of the wall. All four sides need to be fire blocked.  The material of choice right now is the same 1” gypsum board used in the 2-hour rated assembly.  Install the 1” gypsum board in the 1”  gap between the interior of the unit and the outside at the front and back of the units, between floors, and to the attic.  Again, picture framing the party wall.

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Depending on your foundation type, if you are standing on the first floor you will need to air-seal the two layers of gypsum and the bottom plate to the slab in the shaft wall, or address the rim joist connection in the basement or crawl space to the shaft wall. At the rim joist be sure sill seal has been installed between foundation and sill plate as it is your primary capillary break, then seal the sill plate to foundation, seal rim board to the sill plate, and seal the rim board to sub floor.  Pay special attention to any knockouts for foundation bolts.

Once the large 1” gap has been fire blocked with an air-impermeable material such as gypsum, seal the smaller gaps between the fire block and the shaft wall and the fire block and the framing.  A fire-rated caulk or expanding foam works for this. Following these steps, with careful attention to detail, should enable you to successfully achieve 3 ACH50.recap-of-ff-image_5

A few words of caution:

  • Ensure that the drywall lid is air-tight: duct boots and other penetrations need to be sealed. In addition, as required by ENERGY STAR, the drywall to top-plate should be sealed. (This is a requirement of code that is generally not enforced.)
  • Mechanicals can derail all good air-sealing intentions. Undampered ducts run to the exterior for combustion or ventilation air as well as atmospherically vented appliances. These combustion air ducts can ruin one’s ability to build a tight home that gains control and predictability of the airflow in the building.

Don’t Forget: Sound Reduction

Lastly, these assemblies should reduce sound transmission from dwelling unit to dwelling unit.  The party wall is assumed to be an adiabatic wall, i.e. there is no heat loss or gain through the wall between two conditioned spaces as the temperature is the same on each side. Therefore, the insulation is primarily installed to lower sound transmission.  The principles of sound reduction and heat flow are the same, so proper installation of the insulation in the framed cavity of the party wall is imperative.

NAIMA, the North American Insulation Manufacture Association, states that the installation of insulation in a party wall application should “comply with the manufacturers’ instructions including filling the entire stud cavity and cut to fit around outlets, junction boxes, and other irregularities in the cavity.”  In other words, the insulation in a common party wall should be installed to a RESNET, Grade 1.

To learn more please see EnergyLogic’s Tech Bulletin on “Fire-rated Party Walls”  which includes an article by Building Science Corporation.

Have a technical question? Contact Robby Schwarz.

Our next event will take place on November 16th. It is focused on Selling High-Performance Homes.  Our guest speaker, Todd Gamboa, President of Building Trust LLC., has a wealth of experience and perspectives to share.  Please see details here.

If you have suggestions for topic you would like to see discussed in depth, please let us know. We will be releasing our Q1 2017 event topic and date soon.

Robby Schwarz (faked)

 

Robby Schwarz

Principal / Director of Builder Relations

EnergyLogic, Inc.

720-838-0677

Contact Robby Schwarz

Field Fusion: Learning How to Sell the Benefits of High-Performance Homes

Get in the Game by Selling High Performance 

Field-Fusion-LogoDate: November 16, 2016
3:00 – 7:00 PM

Cost: None

Location: Tavern Tech Center (Upstairs) 
5336 DTC Blvd
Greenwood Village, CO 80111

Please RSVP here

Event Logistics:

3:00 – 5:00 PM 

Presenter: Todd Gamboa, President of Building Trust LLC

Issue: New construction is on the rise again. However, the real estate market is still dominated by older homes as they represent over 85% of sales. Homebuilders, HERS® Raters, trade partners, suppliers, and manufacturers have a significant impact on the way new homes are designed, built, and sold.
 
Objective:  Converting prospective buyers to new construction is a team effort. Leveraging your knowledge of building science, energy efficiency, and consumer trends and behavior, is the most effective way to create opportunities. Get in the game by learning how to demonstrate and sell the benefits of high-performance homes, services, and products. You will increase your sales, improve your profitability, and differentiate your brand!

5:00 – 7:00 PM 

EnergyLogic’s Mixer and networking

Drinks & hors d’oeuvres provided!

Todd Gamboa

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Todd Gamboa, President of Building Trust LLC, has been in the building industry for over 30 years, managing private and public companies. As a homebuilder, he has been responsible for the creation of thousands of homes. As a building science consultant, public speaker, and host of “New Home Solutions Radio”, he educates homebuilders, contractors, architects, appraisers, and realtors all over the country about the value and benefits of buying new construction. Mr Gamboa has launched and managed several, energy efficiency and “market transformation” programs for utility providers; home builder and realtor associations; and  state and federal government agencies throughout the U.S. His fast-paced, fun, and informative sales training have been described as “Info-tainment” by attendees.

 

This Field Fusion event is generously supported by Tyvek.

 

RESNET HERS® Rater Online & Field Training December 5-8, 2016

$500 Discount for Online/Field Combo Students!

Click here to register

Use coupon code december2016 for $500 off of the HERS Rater Training Combo

EnergyLogic Academy’s Referral Program Rewards – Tell ALL Your Friends!

We feel everyone should benefit from ‘word of mouth’ marketing, not just us! We make it worth your while by offering cash rewards through our referral program.

Earn up to $100 cash per referral

Let’s keep building this industry – together!

RESNET HERS® Rater Training Combo Package (Phase 1 & 2)

PHASE 1 – ONLINE & SELF-PACED 
Start Today! 

Phase 1 of the EnergyLogic Academy HERS Rater training is designed to allow participants to navigate through the knowledge base needed for a HERS Rater at the users own pace. The course prepares students for the extensive knowledge needed in building science, building materials, integrated construction processes, HVAC equipment, and diagnostic testing equipment and processes.

The HERS Rater Training online course covers the core knowledge for the HERS Rater certification. By enrolling in our self-paced, open enrollment course, you will have 90 days to complete the training. You can complete the training at your own pace, and you do not need to use the whole enrollment period if it is not needed. There are 24 modules in the course – each module will take a minimum of two hours to complete, with some taking over four hours.

PHASE 2 – FIELD TRAINING 
December 5-8, 2016
Denver, CO

Phase 2 is four days of field training designed to introduce the HERS Rater inspection processes and diagnostic testing. During the field training, we will complete two practice ratings according to the RESNET training standard. Practice ratings will be performed on an existing home and a new home.

This is an instructor-facilitated course. Students will have one-on-one instruction with the testing equipment. Much of the field work will be done in a group setting, where peer-to-peer interaction is used to complete the practice ratings.

 

INSTRUCTORS: 

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             Ben Graham

             RESNET® Instructor, Green Rater, Auditor

 

 

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          Steve Eagleburger 

          Field Services Manager & Software Technical Liaison

 

 

 

After completing the course, Rater candidates have two steps remaining before earning certification:

The candidate must pass three exams. The exam fees are not included in the price of tuition. These fees are paid directly to RESNET. For more information click on the RESNET Exams tab.

The candidate must join a provider and complete the probationary phase of certification. The provider ultimately issues the certification once the candidate completes the probationary phase.

A package you just can’t turn down!

Click here to register

Use coupon code december2016 for $500 off of the HERS Rater Training Como

 

Field Fusion: The Disconnect Between Fire & Energy Code

 

Field Fusion: The disconnect between Fire Code and Energy Code

Fire rated assemblies, air tightness, and the real world

Field-Fusion-LogoDate: August 31, 2016
Start Time: 3:00 PM

Location: Bad Daddy’s, 100 E 120th Ave, Northglenn, CO 80233

Please RSVP here

 

 

SCHEDULE

3:00 – 5:00 PM 

Speaker Highlights:

Robby Schwarz, Principal and Director of Builder relations at EnergyLogic, Inc

  • Laying out the issue. Fire code vs. energy code and air leakage requirements that have to be met. Why multi-family homes are twice as leaky as single-family homes that are twice their size.

Gil Rossmiller, Chief Building Official for the City of Parker

  • A perspective from a Code jurisdiction on what defines a fire rated assembly and what is being allowed to make them air tight.

Brian Firestone, Applegate Insulation

  • Fire and Acoustical rated assemblies. UL listings the process and the options that are available.

 

5:00 – 7:00 PM 

EnergyLogic’s Mixer and networking

This event is generously supported by Tyvek.