Thermally Insulated Solutions for Balconies and Structural Components © Stewart Cairns © Stewart

HALFEN HIT ISO-ELEMENTS Thermally insulated solutions for balconies and structural components © Stewart Cairns © Stewart

For Concrete-To-Concrete, Steel-To-Concrete and Steel-To-Steel Applications

ICC Approved INNOVATION. DIVERSITY. quality. HIT connections offer high integrity structural solutions to thermal bridging

Energy efficiency, along with the prevention of potentially harmful living conditions, is becoming increasingly important in today’s sustainab- le building designs. The thermal performance of the building envelope is a key consideration. At the same time, stylish and aesthetically appealing structures are in high demand for mixed-use developments that combine high density occupancy with accessible outdoor spaces. Planning for thermal insulation while maintaining architectural integrity for balconies and cantilevered structural components is a necessity.

HALFEN helps you meet the challenge by providing an innovative line of insulated connections for concrete-to-concrete, steel-to-concrete, and steel-to-steel applications. Ensuring optimum thermal insulation, they also comply with the strictest fire safety requirements. By utilizing materials with a low thermal conductivity, between elements with a higher conductivity, HALFEN offers high-performance thermal breaks for diverse situations.

Choose innovation, diversity and quality with the HIT Insulated Connections from HALFEN.

Cover photo: THE CLARK ART INSTITUTE - Williamstown, Massachusetts

page 2 innovation. diversity. quality. CONTENTS page 4 thermal Bridging and balcony connections page 5 your benefits with halfen

page 6 - 7 hit: Concrete-to-concrete FEATURES AND BENEFITS

page 8 - 9 HIt: Concrete-to-concrete versatile product range

page 10 - 11 HIT: STEEL-TO-CONCRETE FEATURES AND BENEFITS

page 12 hit: STEEL-TO-CONCRETE - system dimensions

page 13 hit: STEEL-TO-CONCRETE - LOCAL REINFORCEMENT

page 14 - 15 HIT: STEEL-TO-STEEL FEATURES AND BENEFITS

page 16 hit: STEEL-TO-STEEL system dimensions

page 17 hit: STEEL-TO-STEEL INSTALLATION

page 18 - 19 HIT SOFTWARE FOR CONCRETE-TO-CONCRETE INSULATED CONNECTORS

page 20 CONTACT INFORMATION

HALFEN Thermal Bridging Solutions Balcony slab – installed without thermal break HALFEN's Thermal Connections are an ideal solution to 23 °F eliminate thermal bridging and increase the overall energy 28 °F efficiency and comfort of a building. HALFEN HIT systems 33 °F provide a thermal break for continuous balcony structures 38 °F 43 °F whether the application is for concrete-to-concrete, steel-to- 48 °F concrete, or steel-to-steel applications. 53 °F 58 °F 63 °F Green Building Movement 68 °F xx The ″Green Building″ Movement is gaining momentum worldwide resulting in stricter regulations regarding the energy efficiency of structures. This is evident in recent energy code changes (IECC, ASHRAE 90.1 and NECB) requiring continuous building insulation and effective R-values. Conventional methods and products can not always meet these demands and more innovative and thermally efficient building products are required.

Effects of Thermal Bridging Temperature below the dew point – negative effects A thermal bridge is an area of of the structure which has a significantly higher heat transfer than the surrounding materials resulting in an overall reduction in the thermal insulation of the In colder climate zones, thermal bridges can results in greater building. A thermal bridge can be generated due to construction energy consumption, interior corner condensation resulting in material or geometry. Quite often this is addressed in mold growth and adversely affect occupants comfort of living. aluminum window frames but frequently overlooked in steel and concrete as well as corbels and eyebrows. HALFEN HIT Insulated Connections allow insulation to run continuously through a balcony increasing the effective R-values of the wall system by almost two times compared to a continuous balcony. © Creativa Images - shutterstock.com - Images Creativa ©

HALFEN provides you the tools to make the future greener.

Structures with HIT units can be 10 to 15 times more thermally efficient than traditional solutions. $ $

u Long term maintenance savings

Eliminating damage from condensation and mold growth produces lower maintenance costs. HIT permits thermal expansion and contraction of the balcony with significantly reduced movement-induced cracking $ to the concrete, exposure of reinforcement, and concrete spalling. $

u Health benefits

Eliminating condensation and mold growth produces a healthier environment for building occupants.

u Environmental benefits

Heat emissions from buildings and the release of carbon dioxide from the burning of fossil fuels used to heat and cool them are contributing factors to climate change. Use of HALFEN‘s HIT systems result in lower overall energy consumption.

u Comprehensive engineering support

HALFEN engineers will be pleased to assist with detailed design and product selection to suit the requirements of each project.

Simple to install, the HIT Insulated connection for concrete-to-concrete applications is designed to optimize structural resistance while maintaining thermal effeciency. The HALFEN HIT system also allows differential movement between the interior and exterior concrete components. This minimizes cracking caused by thermal expansion and contraction, extending the overall lifetime of the balcony.

Quality Features:

Tension Bars are comprised of stainless steel through the joint where the highest level of corrosion resistance and thermal efficeiny is required.

Installation Instructions, unit identification and ICC Approval are conveniently located on top of the unit

Innovative compression shear bearing provides sufficient transfer of loads with a significantly lower thermal conductivity then the alterntaive steel compression pads.

Rigid casing provides protection during transport and on site storage. More reliable than alternative products which utilize directly exposed polystyrene making them fragile and easily susecptable to damage.

Mineral wool utilized for both insulating material and to provide fire resistance. All standard units have a 2 HR fire rating.

Symetrical CSB design allows for installation independent of the main slab or balcony orientation; thus preventing installation errors.

ICC Approved Product The HALFEN HIT Insulated Connection is the first ICC approved Structural Thermal Break on the market. ICC ESRs are the most trusted and recognized approval by building officials, architects, contractors, specifiers, designers and engineers. Code compliance is ensured through the detailed approval process consisting of thorough examination of test reports, calculations, quality control methods and production processes. The reception of the ICC ESR for HALFEN HIT Insulated Connections compliments HALFEN's commitment to providing the highest quality of product ICC Approved and engineering support for its customers. ESR 3799

HALFEN HIT connections are high performance thermal break systems that are particularly suitable for high energy-efficient structures, heavily congested or stepped floor slabs where compression bars would be difficult to accommodate, applications where maximum corrosion protection is required and when an integral fire resistance is preferred to the installation of a separate fire protection barrier.

Type of balcony HIT unit Internal forces

Cantilever balcony HIT-MVX

Balcony Main slab HIT-MVX

Balcony

Cantilever with downward height off set HIT MVX-OD

Main slab ≥ 50

HIT-MVX-OD Balcony Balcony ≥ 175

Cantilever with upward height off set HIT MVX-OU

Balcony ≥ 50 HIT-MVX-OU Main slab Balcony ≥ 175

CantileverSupported balcony balcony with seismic HITHIT-EQ ZDX

HIT-±BQHIT-ZDX HIT-EQ BalconyBalcony MainMain slab slab HIT-MVX

Balcony Balcony

Recessed balcony HIT-DD

without CSB Balcony Type of balcony HIT unit Internal forces

Cantilever with upward height off set HIT MVX-OU

Balcony ≥ 50 HIT-MVX-OU Main slab Balcony ≥ 175

Supported balcony HIT ZDX

HIT-±BQHIT-ZDX Balcony Main slab

Balcony

Recessed balcony HIT-DD

HIT-DD Balcony Main slab HIT-ZDX HIT-DD

without CSB Balcony

Type of balcony HIT unit Interral forces

Cantilever balcony HIT-OTX

Main slab Insulation joint using HIT-FK Main slab Corbel HIT-OTX Corbel

Cantilever balcony HIT-FK

250 250 250 Main slab

HIT-FT HIT-FT HIT-FT Main slab Corbelled parapet a Filler HIT-FK (REI 120) Corbel

The HIT STC system is used for anchoring steel balconies to concrete floor slabs and has been proven through thermal modeling to reduce heat loss when compared to direct connections. The two part assembly, comprising of a cast-in assembly and a post-installed bracket with thermal pad located at the interface, allows for phased construction. Unlike one-piece systems which are left exposed on-site, the STC bracket component is not installed until required, reducing the risk of damage.

Stainless Steel Coupler

Quality Features:

Serrated pads and slots provide adjustability in the final Threaded Rebar bracket position without the need for levelling shims.

Threaded rebar and are supplied pre-assembled with stainless steel couplers.

A stainless steel nail plate completes the assembly and features notches indicating the centerline to ease accurate installation.

System Benefits

•Proven through thermal modelling to reduce heat loss •Two-part assembly allows phased installation and avoids damage by other trades •Simple nailplate design avoids cutting of formwork around the connector •Variable bracket projection to suit wall construction and avoid conflict with cladding •Serrated slots provide on-site adjustability for fine tuning of the balcony without levelling shims

Serrated Washer

Thermal Pad

Center Line Notch Cast-in Assembly

STC16 Range

Faceplate Cross Section of Connector Nailing Plate a 27mm t 27mm 27mm b 27mm M16 bolt

34mm 42mm 16mm M V 17mm c d s

42mm 34mm 505mm

Projection to 725mm for slabs ≤ 250mm be specified 1005mm for slabs > 250mm

Product Bolt Bolt Anchor Anchor Reference Width Centers Centres Height Spacing Spacing a (mm) b (mm) c (mm) d (mm) s (mm) t (mm) STC16-150 184 130 66 150 82 130 STC16-175 204 150 91 175 107 150 STC16-200 204 150 116 200 132 150 STC16-225 204 150 141 225 157 150 Dimensions shown for carbon steel brackets. Stainless steel dimensions are available in the SSTC Balcony Connector brochure. Recommended bolt clearance hole diameter in balcony steelwork is 17mm.

STC20-200 Faceplate Cross Section of Connector Nailing Plate 236mm 236mm 33mm 170mm 33mm M20 bolt

40mm 48mm 16mm M V 120mm 22mm 200mm 200mm 104mm

40mm 48mm

1045mm Recommended bolt clearance hole 33mm 170mm 33mm diameter in balcony steelwork is 22mm. Projection to 1525mm for slabs ≤ 250mm be specified 2155mm for slabs > 250mm

STC24-240 Faceplate Cross Section of Connector Nailing Plate 258mm 258mm 39mm 180mm 39mm M24 bolt

50mm 42mm 16mm M V 26mm 240mm 140mm 240mm 156mm

50mm 42mm

1055mm Recommended bolt clearance hole 39mm 180mm 39mm diameter in balcony steelwork is 26mm. Projection to 2165mm be specified M = Moment V = Shear12 © 2019 HALFEN · PG-HIT 19-US · www.halfenusa.com hit: sTEEL-TO-CONCRETE Local Reinforcement

Local reinforcement is required around each HIT STC connector to guarantee that the forces are transferred between the connector and the concrete. Correct detailing in accordance with appropriate design codes and the recommendations provided here will ensure HIT STC Connectors attain their full capacity. The tables show proposals for the type and spacing of U-Bars (each side of the connector together with details of reinforcement above and below the connectors). Type 1 Type 2

Minimum Slab Depths for a Straight Run Minimum Slab Depth (mm) Connector Type 1 Type 2 Reference Reinforcement Reinforcement STC16-150 200 175 STC16-175 225 200 STC16-200 250 225 STC16-225 275 250 STC20-200 250 225 STC24-240 300 275

e1 e2 Spacing of U-Bar Reinforcement U-Bar Spacing

Values given in adjacent table assume:- e1 (mm) e2 (mm) STC16-150 60 80 Cover, cnom = 25mm Concrete grade C32/40 STC16-175 60 85 STC16-200 50 85 Reinforcement diameter 12mm (u-bar and STC16-225 50 85 longitudinal bars) STC20-200 50 70 Reinforcement arrangement type 1 STC24-240 50 70

cnom

Standard HIT STC corner units are available which offset the position of the anchor bars on adjacent connectors to eliminate a reinforcement clash. Positive Centreline of slab offset The corresponding bracket assemblies feature Total an extended assembly plate on one side to offset bring the balcony assembly position back in line Negative with the standard HIT STC connectors used in offset the rest of the slab. d Minimum Slab Depths at Corners d Minimum Due to the offset, the minimum slab depth is Connector Slab Depth Corner Unit Offsets deeper than that for a straight run and is given Reference (mm) STC16-150 225 Offset per Corner Total System Connector Offset in the table. STC16-175 250 Connector (mm) (mm) STC16-200 275 (mm) STC16-225 300 STC16 +/- 12.5 25 STC20-200 275 STC20 +/- 15.0 30 STC24-240 325 STC24 +/- 17.5 35

The STS system is a compact thermal break, typically used for connecting steel balconies to structural steel frames but is equally suitable for other steel-to-steel applications.

Quality Features: Polystyrene insulation

Thermal modelling of a typical STS application showed a Thermal modelling of a typical STS application reduction in heat loss of almost 50% compared to a direct showed a reduction in heat loss of almost 50% steel connection. compared to a direct steel connection. It also illustrated a temperature factor within the limits detailed in BRE document IP1/06 for Tension and compression components are utilized within a eliminating condensation risks in buildings of single compact unit, wrapped in polystyrene insulation. any type, even those with high humidity (0.9). Each unit features four A4 stainless steel bolts and a thermoset plate at each steel interface. It comprises tension and compression components within a single compact unit, The system is available in three standard sizes to wrapped in polystyrene insulation. Each unit accommodate a wide range of loads. Manufactured to features four A4 stainless steel fixing studs and order, the vertical centres of the bolt can be specified to a thermoset plate at each steel interface. suit the exact requirements of the application.

The system is available in three standard stud sizes to accommodate a wide range of loads. System Benefits Manufactured to order, the vertical centres of the fixing studs can be specified to suit the •Thermal plates at each steel interface exact requirements of the application. •Proven through thermal modelling to reduce heat loss •Reduces heat loss by 50% compared to direct steel Stainless connections steel bolt •Variable bolt heights available to suit specific applications •A4-grade stainless steel bolts for enhanced corrosion protection Thermal Pad

W A B A

C Product Referencing System STS 16- 140 As Standard Bolt Vertical Bolt specified Product Diameter Centers Reference (mm) Required (mm)

90mm

E F

M V

Product Reference W* A* B* C* D* E* F* STS 16 180 40 100 30 40 24 A/F M16 STS 20 180 40 100 30 40 30 A/F M20 STS 24 190 37.5 115 40 45 36 A/F M24

M = Moment V = Shear * = All Units in (mm)

The HIT STS Balcony Connector is supplied in a single unit with thermal plates attached to both inner and outer faces. These plates should not be removed. The assembly features all necessary nuts and washers. Care should be taken to avoid damaging any balcony connector components prior to and during installation. It is essential that the connector is orientated and installed correctly.

Pre-Installation Checks

Prior to installation of the connector, it is important to check the product dimensions against the engineer’s drawings.

STS 16 STS 20 STS 24 Wrench Size (A/F) 24 30 36 Torque (Nm) 148 288 498

The HIT STS Balcony Connector should be orientated so that the Once all connectors are correctly positioned and fitted to the label indicating the uppermost face is correctly positioned and is building structure, the balcony beams can be installed. facing out of the building. Remove the nuts and washers from the outer face of the connector. Position the connector close to where it is to be installed. Ensure the connector is stable and not likely to fall. Carefully remove the Carefully lift the balcony fabrication, ensuring the balcony is nuts and washers from the studs on the inner face. Carefully lift horizontal. Align the balcony and carefully push over the exposed and fit the exposed studs through the appropriate holes in the studs. Do not force it into position. When positioned, re-fit the building structure. Do not force the connector into position. Re-fit washers and nuts. the washers and nuts. Once the balcony is fully aligned with the connector and Once the connector is fully aligned with the structure, torque the structure, tighten the nuts to the specified torque. Remove all nuts with a calibrated torque wrench and suitable socket. lifting straps.

The HIT Software is a comprehensive design tool that allows users to effeciently design balconies with insulated structural connections

The design software allows you to plan verifiable balconies with these key advantages: u free download available u intuitive and easy to use u enhanced load and support options u comprehensive calculation output summary u .dxf-file output to include in drawings u parts-list to facilitate ordering u variable GUI using the current Windows design, fully customizable to your needs u output of internal force progression for each load case u option to select a variety of international standards u numerous language options available

Only three steps required to complete a parts list for enquiries and orders

Step 1: Easy and intuitive input of the initial parameters

HALFEN offers a wide selection of balcony types: u cantilever balcony (see example on the right) u simply supported balcony u recessed, three sides supported u outside corner balcony u outside corner balcony with column u inside corner balcony u inside corner balcony with column u height offset balcony

Innovations and Advantages The HIT design program uses the geometry of the balcony and the constraints for the material cover and strength to select the appropriate HIT Elements.

Results can be printed out as a comprehensive structural calculation. Printouts can be a compact version or in greater detail including all analysed load cases and combinations, deflection results, as well as graphic illustrations.

The graphic output capabilities of the HIT software includes not only the basic geometry of the balcony but also a detailed plan view and section cut illustrating the HALFEN HIT Insulated connections, loads and necessary connecting reinforcement.

Step 3: Parts lists printout HALFEN HIT Insulated connection Parts List HIT Design Software To simplify the order process the HIT software can generate Project: Multifamily Building, Central Street Created by: Mr. Builder the following parts lists: Company: ABC Position Article number Catalogue No. Number of per item u parts list showing all individual balcony units balconies (example on the right) u parts listed as HIT types

The user-friendly HALFEN Software allows intuitive operation and easy input of parameters for numerous balcony support conditions. HALFEN provides the designer with a comprehensive software with absolute reliability in designing and dimensioning balcony connections.

The software calculates code approved HIT Elements. All verifications required in accordance with ICC-ESR 3799 – in keeping with HALFEN's integral safety concept that no further approvals need to be acquired by planners when using any HALFEN HIT Insulated connections.

© 2019 HALFEN · PG-HIT 19-US · www.halfenusa.com 19 Contact HALFEN WORLDWIDE HALFEN has a global network of Subsidiary Companies to assist you. The main contact information for North America and the European Headquarter is provided below. For a full list of offices please visit: www.HALFEN.com

Sales

USA/Mexico/Canada HALFEN USA Inc. Phone: +1 800.423.9140 Fax: +1.877.683.4910 4965 Eisenhauer Road, Suite 101 E-Mail: [email protected] San Antonio TX 78218 Web: www.halfenusa.com Germany HALFEN GmbH Phone: +49 2173 970-0 Fax: +49 2173 970-123 Liebigstrasse 14 E-Mail: [email protected] 40764 Langenfeld Web: www.halfen.de

HALFEN is also represented by distributors in Argentina, Australia, Armenia, Azerbaijan, Belarus, Brazil, Bulgaria, Chile, Colombia, Croatia/Bosnia- Herzegovina/Serbia/Montenegro, Cyprus, Denmark, Estonia, Georgia, Greece, India, Indonesia, Iran, Israel, Japan, Jordan, Kazakhstan, Korea, Latvija, Lithuania, Malaysia, Malta, Mexico, Moldova, Myanmar, New Zealand, Peru, Philippines, Romania, Saudi-Arabia, Singapore, Slovenia, South Africa, Taiwan, Thailand, Turkey, Ukraine, Unites Arab Emirates, Uruguay

HALFEN GmbH shall not accept liability for the accuracy of the information in this publication or for any printing errors. PDF 08/18 R-255-USA - 08/18