Halfen Hit – Insulated Balcony Connection Hit 13-Us

HALFEN HIT – INSULATED BALCONY CONNECTION HIT 13-US CONCRETE Apartment building with HIT, Canada Turn up the Heat on Insulation Improved quality of life with the HIT balcony connection from HALFEN – efficient solutions for your balcony designs. alconies offer additional living space Versatile B and increase the quality of life – as An extensive range of sizes and long as they do not compromise the configurations enable a HALFEN HIT insulation of the building interior. The solution for virtually all concrete balcony insulation problems of concrete balconies connections, whether fully cantilevered, are solved with the HIT balcony connection partially projecting or fully inset. We can from HALFEN. also offer you an insulated connection solution for many other types of projecting Eco-friendly concrete features including, walkways, HALFEN HIT connections are designed to corbels, parapets, and canopies. help maintain comfortable interior temperatures while reducing energy use. Many advantages with one result: HALFEN provides safety, reliability and Efficient efficiency for you and your customers. Integral polystyrene insulation and the selective use of stainless steel components Safe almost eliminates thermal transfer All load-bearing components in the between the balcony and the floor insulating joint are made from of high- slab. This reduces heat loss through the quality corrosion-resistant stainless steel. structure and reduces the possibility of All HALFEN HIT balcony connections are interior condensation and mold growth. available with reliable fire protection. 71°F 5°F HALFEN USA Inc. · PO Box 547 Converse · TX 78109 Phone: 800.423.9140 · www.halfenusa.com · [email protected] 2 © 2013 HALFEN · HIT 13-US · www.halfenusa.com HALFEN HIT – INSULATED BALCONY CONNECTION Table of content Introduction 4 Advantages 5 Features and Benefits 6 -7 Further design considerations 8 Type overview 9 Introduction HIT-BX and HIT-BX±Q 10 Introduction HIT-BX-ECK 11 Introduction HIT-BQ and HIT±BQ 12 Introduction HIT-VT 13 Introduction HIT-BD 14 Introduction HIT-HT 15 Introduction HIT-FT, HIT-AT, and HIT-OT 16 Introduction HIT-WT 17 Engineering request form 18 Project gallery 19 © 2013 HALFEN · HIT 13-US · www.halfenusa.com 3 HALFEN HIT – INSULATED BALCONY CONNECTION Introduction Thermal Bridging Higher environmental demands, increasing consumption of a building becomes larger. rior surfaces around the thermal energy costs, and the desire for healthier One of the most significant thermal bridges break decreases, mold issues caused by and more comfortable living space have are balconies and other similar structures condensation occur. The system also led to thicker insulation layers in residential that stick out of the building and thus cross works the opposite way in areas where and commercial buildings in recent years. the insulation layer. These members act like the outer temperatures are high and air With thicker insulation layers, the influence cooling fins that cool down the building in condition is used to compensate the high of local thermal bridges in the total energy winter time. As the temperature at the inte- outer temperatures. The HIT Solution Simple to install, HIT Insulated Connections HALFEN HIT Insulated Connections are 5of 71of are designed to minimize thermal bridging available for different concrete thicknesses at all concrete members that cross the and loading conditions. Custom solutions insulation layer of the building such as to fit special project requirements are balconies, cantilever roofs, and fin walls. available. Integralἀfire protection is also available. Typical HALFEN HIT Insulated Connection Components Label: assembly, installation Tension bars made of standard reinforcing procedure steel connected with a high-grade stainless steel tube Synthetic cover or fire Shear bar ‒ high-grade stainless steel protection board Polystyrene Pressure pads ‒ high-grade stainless steel 4 © 2013 HALFEN · HIT 13-US · www.halfenusa.com HALFEN HIT – INSULATED BALCONY CONNECTION Advantages Thermal gradient non insulated balcony Outside Room 23 °F In cold weather thermal bridging leads to a cooling of the inner temperature temperature 28 °F below the surface areas around the thermal bridge leading to following areas 68° F 33 °F dew point of concern for designers: 23° F 38 °F 43 °F ▪ Risk of condensation 48 °F ▪ Risk of interior mold growth 53 °F ▪ Risk of concrete cracking under thermal movement 63 °F 68 °F ▪ High energy costs ▪ High CO2 emissions ▪ Cooling down of the surface areas around the balcony (cold feet syndrome) ▪ Increased lifetime building maintenance costs ▪ Pour stop at the connection to use higher grade concrete at the balcony needs additional effort Temperature below the dew point 54° F Thermal gradient insulated balcony Outside Room temperature temperature 23°Thermal F gradient insulated balcony 68° F The use of HIT Insulated Connections optimizes the connection detail in the following points: ▪ Definite thermal separation between floor slab and balcony ▪ Significantly reduced risk of condensation ▪ Significantly lower risk of interior mold growth ▪ Reduced risk of concrete cracking Temperature ▪ Lower energy costs OK ▪ Less CO2 emissions 63° F ▪ Reduced lifetime building maintenance costs ▪ HIT can be used as a pour stop to use higher grade concrete in the balcony area if needed © 2013 HALFEN · HIT 13-US · www.halfenusa.com 5 HALFEN HIT – INSULATED BALCONY CONNECTION Features and Benefits Reasons for movement induced cracking in thermally exposed concrete parts Winter Summer 70 F 70 F inside inside Main slab Main slab 0 F 100 F Insulation outside Insulation outside Balcony Balcony Differential movement causes cracking in connection area Temperature differences between the build- Main slab Corrosion of the reinforcement leads to ing (inside the insulation) and the balcony concrete spalling. (outside the insulation) provoke a difference in movement in the two members. A The maintenance costs to treat the cracks Movement Insulation conventional rigid connection does not are significantly high. The treatment of the cracks Balcony allow any differential movement. This cracks does not solve the central issue and leads to tension in the concrete and first The concrete cracks expose the reinforce- new cracks will occur. movement cracks occur. ment to oxygen and humidity resulting in corrosion in the reinforcement. Finally the balcony needs to be replaced. The HIT solution ≤ 36 ≤’ 36' ≤ 18'≤ 18’ Movement joint doweling, e.g. HALFEN HSD Set Movement joint The HIT units allow for differential move- for the exposed concrete member. If longer ment in the two connected parts inside structures are required, movement joints are and outside the building. The balcony can recommended. ’ 18 ≤ 18' expand and contract without constraints. ≤ Cracking in the exposed concrete parts can To prevent differential deflection between be significantly reduced. To make sure, the two continuous structures but allow for HIT can take the differential movement, a horizontal movement, shear dowels can maximum length of 36’ is recommended be used. 3 1/4" 6 © 2013 HALFEN · HIT 13-US · www.halfenusa.com HALFEN HIT – INSULATED BALCONY CONNECTION Features and Benefits Reasons to select HIT Insulated Connections for your next design Wide range of products Many versions of HIT Insulated Connections can be provided. The range enables a great variety of concrete thicknesses, shapes, and load configurations to be safely supported. Long term energy savings Concrete structures with HIT units can be 10 to 15 times more thermally efficient than traditional solutions. $ $ Long term maintenance savings Less 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 attendant concrete spalling. Health benefits Reducing condensation and mold growth produces a healthier environment for the building occupants. 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. HIT Insulated Balcony Connections can contribute to a reduction in the environmental impact. Comprehensive engineering support HALFEN engineers will be pleased to assist with detailed design and product selection to suit the requirements of each project. © 2013 HALFEN · HIT 13-US · www.halfenusa.com 7 HALFEN HIT – INSULATED BALCONY CONNECTION Further design considerations Dew point, fire protection, and noise reduction Dew point Dew point diagram To reduce the possibility of mold and the development of 68 condensation the temperatures of all surfaces within the living F space have to be kept above the dew point. The dew point 64 temperature varies according to the temperature and relative F F] humidity of the living space. In the example indicated in the 61 graph the dew point occurs at 54º F when the room F Room temperature 77° temperature is 68º F and the humidity is 60 %. 57 HIT Insulated Balcony Connections play an important role in Room temperature 68° enabling the temperature of the internal structure to be 54 maintained above the dew point in the areas around concrete Room temperature 59° parts that are breaking through the insulation of the building. 50 Dew point temperature [° Dew point temperature 46 43 Relative humidity in the room Fire protection HIT Insulated Balcony Connections are

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