High Performance Insulated Wall System a Game Changer for Architects

High performance insulated wall systems like the innovative StoTherm® ci XPS provide the air, weather and thermal tightness required for today’s most energy-efficient architecture, but are also cost-effective and provide designers with a wide range of aesthetic options.

Sto Corp. has joined forces with insulation specialists Owens Corning and Dow to produce one of the most technically advanced exterior wall systems available. The innovative StoTherm® ci XPS wall system is designed to provide the air, weather and thermal tightness required for today’s most energy-efficient architecture, but also makes for exterior walls that look good, and are cost-effective.

One of the first things architects will notice about the product is its design flexibility. The multi-layered system offers a wide range of finishes from the natural look of raw materials to boldly colored finishes, allowing for a variety of looks from traditional textured surfaces to limestone, concrete, metal and many more.

Hidden behind the beautiful outer skin, are important energy efficient properties; StoTherm® ci XPS meets rigorous sustainable design standards, including ASHRAE 90.1-2010, the new International Green Construction Code (IGCC), and the International Energy Conservation Code (IECC) requirements for continuous insulation.

This smart architectural product combines high quality, technologically advanced materials, including Dow and Owens Corning insulation with a closed cell structure which helps prevent liquid movement through the material and provides exceptional thermal performance with an R-value of 5.0 per 1”. The final result is a combination of layers that delivers exceptional air and moisture control, that also meets the latest building code requirements for energy efficient continuous insulation and fire testing. The highly durable system also provides significant impact resistance that exceeds IBC and IECC codes.

How can such a high-performance product, also be economical? The high R-value of Sto’s system (R5/inch) makes for a thinner wall, reducing the overall weight and cost-per-square foot for the building envelope. Add this to lifetime savings from superior energy-efficiency, and you have a product that offers both short- and long-term cost benefits to the client.

StoTherm® ci XPS is truly a system designed with the architect in mind –its versatile and seamless combination of energy-efficient qualities and aesthetically pleasing finishes provide a true “end-to-end” solution for architects.

 


Material Selection Conference Yields Valuable Product Data

Sto product experts participated in Durability & Design’s Material Selection Conference last week which showcased the latest in high performance coatings and air moisture barrier products for exterior walls.

At Durability + Design’s inaugural Material Selection Conference last week (Sept. 26), the themes that prevailed were data collection and communication. Though different challenges were discussed — from air leakage to moisture damage — the resounding message was: know your materials inside and out.

The one-day forum focused on the capability of coatings to manage moisture intrusion into exterior walls, and how liquid-applied air barriers can limit heat, air and moisture transfer through walls. The effect of permeance on exterior wall coating performance, as well as how specific coatings and water repellent brands performed on exterior walls were also discussed.

Manufacturer representatives participating in panel discussions offered their opinions on a variety of scenarios and recommended applicable products. Chuck Duffin, Ed Telson, and Tyson Lodge, representing Sto Corp., participated in these panels, educating attendees on how Sto coatings and air moisture barrier products perform on exterior walls in different conditions and circumstances.

Andre O. Desjarlais, program manager for the Building Envelope Systems Research Group at Oak Ridge National Laboratory, discussed the importance of WUFI software (an acronym for Wärme Und Feuchte Instationär—which, translated, means heat and moisture transiency) and why this hygrothermal modeling is valuable based on the wide range of materials available today consistent with the drive for energy efficiency.

While WUFI models yield a lot of data for designers of durable building envelopes, understanding this data and using it appropriately are critical for achieving the construction of energy-efficient, moisture-resistant walls, roofs and basements. Again, the need for knowing your products and how to apply them was reiterated.

The value of using the web-based Energy Savings Calculator developed by ORNL, along with quality assurance and installation requirements for liquid-applied air barriers, were also discussed to ensure building envelope energy efficiency and air tightness. It was noted that air leakage rates of a building depend on multiple variables, including envelope airtightness, HVAC system operation, occupancy, weather and the stack effect. Fluid-applied air barrier products and installation considerations were also debated.

The overall objective of the event was about making buildings last longer by integrating design objectives with exterior performance objectives, selecting materials wisely and knowing those materials. Regardless of which products are selected for durability and design, the manufacturers, architects and contractors in the audience seemed to agree that working closely with, and consulting, manufacturers regarding air barrier and wall coating products was the best way to ensure successful project outcomes.

 

 


Designing for Resilience—Part Two

Sto Therm ci is an exterior insulated wall system that can stand up to blows and abuse; it can be as durable and impact-resistant as you want to make it.

Having provided a macro look at design issues based on increasingly dramatic and devastating weather events, this week we are going to look at specific resilient design solutions and products as they relate to wind and water, specifically Hurricane Impact (HI) systems.

Hurricane impact resilient design can save lives, structures and money. Hurricanes inflict costly damage on the populated areas where they hit, causing billions in insurance losses, costly business disruptions, and taxpayer dollars spent on disaster management. With more than 50% of the American population (who account for 58% of the nation’s gross national product) living or working in coastal counties; these hurricane-prone areas call for well-sealed buildings that also allow for adequate drainage. Severe wind load, heavy precipitation and ground level flooding all need to be addressed.

Creating smarter exteriors for storm protection

Stricter building codes have contributed to improved resilient design, but so have innovative building products and systems. Exterior insulation finish systems (EIFS) and air moisture barrier (AMB) products have been available for decades, and have always been a “resilient design” solution, but they weren’t necessarily referred to as such.

Using specialized EIFS, AMBs and other exterior wall products and systems to enhance design resiliency can provide protection from some of the most severe weather conditions in North America involving high-wind events and moisture intrusion.  Hurricane protection systems for exterior walls can be economically installed on a variety of substrates including metal frames with gypsum sheathing, wood or steel frames with plywood sheathing or concrete masonry. Many of these are also available in a wide range of decorative and protective wall finishes so that form doesn’t have to be sacrificed to function.

As EIFS have evolved, so has the market for advanced solutions for exterior cladding options that protect against hurricane and tropical storm winds, water intrusion and windborne debris (missile impact).  Exterior walls may be susceptible to damage and can result in building envelope failures in such storms. In most cases, windows will fail before the exterior wall, so one of the key components of good resilient design is an air/moisture barrier with connections and transitions that integrate the window and penetration points, creating a monolithic barrier across the entire building. Specialty systems for coastal construction, incorporating innovative wall systems can offer more wind-and-water-related structural protection.

One of those protective products is Sto Corp’s StoTherm® ci exterior insulated wall system, which can stand up to the full range of blows and abuse that Mother Nature can dish out. You can make it as durable and impact resistant as you want by simply swapping out the standard basecoat and mesh and substituting more flexible or resilient components . The product meets the ultra-high impact class per ASTM E 2486 at 150 inch-lbs. Just how tough it is, can be appreciated here: https://youtu.be/LkEFv7O3s_cArchitects, engineers and builders, as well as politicians and city planners need to understand and take advantage of products that can be incorporated into design strategies to protect valuable buildigs that are subject to severe wind and water intrusion.

Advanced resilient design solutions can offer structural protection and enhance public safety, but also deliver significant economic benefits

 


An Award-Winning Project that Includes StoGuard®

Disney Springs won an award for its contractor and kudos for a key vendor on the project: Sto. Photo: Chad Baumer

Disney Springs won an award for its contractor and kudos for a key vendor on the project: Sto. Photo: Chad Baumer

KHS&S is an international design-assist specialty contractor with a portfolio that includes more than 5,000 casino resorts, hospitals, hotels, entertainment venues, retail facilities, theme parks, attractions and public works projects around the country and overseas. Founded in 1984, the firm is now the second largest specialty wall and ceiling contractor in the USA.

At the recent Florida Wall and Ceiling Contractors Association (FWCCA) convention and trade show in Orlando, the company picked up the award for Project of the Year for the work they did on Disney Springs, an elegant shopping, dining and entertainment complex at Florida’s Walt Disney World. A key partner in the KHS&S supply chain? Sto Corp, who provided wall components for two stucco buildings, that included products from its leading air and moisture barrier system: Sto Gold Fill® and StoGuard Mesh, Sto VaporSeal®, Sto TurboStick™ and Sto DrainScreen.

Sto worked with Disney’s architects on the specification details. Now that the work is done, the results speak for themselves.

The Disney Springs design team specified StoGuard for the KHS&S project. Photo: Chad Baumer

The Disney Springs design team specified StoGuard for the KHS&S project. Photo: Chad Baumer

StoGuard

The handsome brick facing was constructed using StoGuard Vaporseal for protection. Photo: Chad Baumer


Passive Design Projects Worldwide Drive Global Energy Savings

Heidelberg Village in Germany will be the largest residential Passive Design project in the world.

Touted as “the world’s largest passive housing” project, a 162 unit residential complex is currently under construction in Heidelberg, Germany. The solar-powered Heidelberg Village designed by the Frey Architekten firm will feature a wide range of sustainable features, as well as rooftop and vertical gardens. The complex is expected to use 75% less energy than a similar project using conventional building design.

The Passive design concept originated in Germany in the 1990’s, and has now been embraced worldwide as an effective and economic way to cut carbon emissions and reduce energy demand in buildings while still providing high-caliber living comfort, superior indoor air quality and structural resilience. While the movement began with a residential focus, passive “house” building principles have been adopted in major commercial building projects as well, setting new standards for heating and cooling efficiency, total energy consumption and air leakage.

The Herman Teirlinch building is the largest Passive Design commercial project in Belgium. Photo: inhabitat

The Herman Teirlinch building is the largest Passive Design commercial project in Belgium.
Photo: inhabitat

One of the most ambitious “passive design” commercial projects currently underway is in Belgium where Europe’s largest passive office complex is under construction. The Herman Teirlinch government office will be a 66,500 square meter mixed use, low-rise, sustainable building designed by Neutelings Riedijk.

While entire passive home neighborhoods have yet to be created in the United States, passive design residential and commercial buildings are cropping up nationwide. The key components are 1) high-quality insulation and thermal-bridge-free construction 2) airtight construction 3) energy efficient windows and doors 4) mechanical ventilation for air quality.

Sto Corp has been a leader in providing passive design projects with energy efficient exterior insulation and finish systems. StoTherm ® ci continuous insulation, air moisture barriers, and advanced wall cavity systems have been used to meet and even exceed passive design energy efficiency standards in various climate zones across the country.

For more information on the Herman Teirlinch office building: http://inhabitat.com/belgiums-largest-passive-office-building-breaks-ground-in-brussels/

For more information on passive design: http://www.phius.org/home-page

For more passive design case studies: http://nypassivehouse.org/new-york-passive-house-2015-the-nyph-flip-book/)


PACE Spurs Building Upgrades for Energy Savings

Now there's financing available to cut energy waste in buildings of all types and sizes.

PACE, which stands for Property Assessed Clean Energy, is a simple and effective mechanism for financing energy-efficiency retrofits and renewable energy upgrades that might not otherwise be affordable for commercial, residential, industrial, and agricultural buildings. PACE financing overcomes the upfront cost barrier these upgrades can pose by providing 100% of the financing for such projects.

The financing is paid back via property tax assessments that can stretch as long as 20 years. In most instances, the related energy savings more than pay for the assessment. Through the use of innovative PACE funding, new energy-efficient heating and cooling systems, insulation, solar and lighting improvements can be immediately rendered cash flow positive.

PACE funding has soared, as owners recognize the opportunity to increase their bottom line by reducing energy costs, to enhance the value of their property and do their part to offset greenhouse gas emissions. Since three quarters of the electricity generated in America is used to heat, cool, illuminate, and otherwise operate buildings, it’s not surprising that Scientific American magazine named PACE one of 20 “world changing” ideas.

http://https://youtu.be/R3Ota3uvM1E