Alba balance. Efficient room temperature management with innovative PCM plasterboards.

Transcription

1 Alba Alba balance Efficient room temperature management with innovative PCM plasterboards.

2 Where energy efficiency increases comfort. Energy-efficient construction is the order of the day. However, demand for maximum indoor comfort is also increasing. The new Alba balance plasterboards allow you to efficiently reconcile both of these targets whilst saving energy. This is made possible by the innovative microcapsules with phase-change material (PCM). These ensure that surplus heat in walls and floors is latently stored and automatically released again when temperatures drop.

3 Alba balance plasterboards for a balanced indoor climate. Phase-change material PCM as latent heat storage Phase-change material (PCM) is able to soak up large quantities of thermal energy and retain it for long periods of time with very little loss. This is made possible by high-quality paraffins which change physical state between solid and liquid: when they melt upon reaching a particular temperature, they absorb the resulting thermal energy (heat of fusion), which is then released again upon solidifying. This phase transition can be repeated as many times as required. Plasterboard as a natural thermostat The innovative Alba balance plasterboard construction material contains specially developed PCM microcapsules which change phase within humans comfort zone (23 C or 26 C). If the room temperature exceeds these values, then the excess heat is absorbed by the boards. If the temperatures should drop again, this heat is returned to the environment. This creates natural regulation of the indoor climate without the need for an external energy source. Increased comfort all year round Alba balance plasterboards with PCM microcapsules ensure an even room temperature whatever the time of year in summer and winter alike. This makes them an ideal panelling material for partition walls, wall linings and claddings as well as for suspended ceilings. The fact that they do not simply increase comfort but also reduce heating and cooling costs makes them a worthwhile investment in building efficiency, environmental protection and quality of life. According to a study conducted by the Royal Institution of Chartered Surveyors (RICS), buildings are the cause of around 40% of all CO 2 emissions in industrial nations. Energy-efficient construction using Alba balance plasterboards thus makes an active contribution to climate protection. 3

4 Delay overheating, reduce peak loads. Temperature T Temperatur T T m Time t Heat input Classic drywall panels (plasterboard) Plasterboards with PCM Since classic (plasterboard) drywall panels offer sensitive heat storage, heating runs in parallel to heat radiation. For boards with PCM, however, this process persists for longer at their defined phase change temperature. This gives rise to a peak shift, i.e. a time delay in the temperature change. Temperature peak shifting Whilst classic (plasterboard) drywall panels heat and cool in parallel with the intensity of the heat input, Alba balance plasterboards break up the heat peaks. This is due to the latent heat storage properties of the PCM microcapsules used: when the phase transition (from solid to liquid and vice versa) is initiated, the temperature of the board remains at its current level and only further increases or decreases once this process has been fully completed. This means that excessive maximum temperatures due to intense sunshine or heating or to waste heat from machines and appliances can be significantly delayed. This peak shifting effect reduces energy requirements for the mechanical re-cooling of excess heat, or allows the heat surplus to be postponed to times when it will not be disruptive or can even be used (e.g. when the heat output drops during the evening). Temperature T T m Heat storage Heat output Classic drywall panels (plasterboard) Plasterboards with PCM Heat Q Excess heat is stored by the PCM microcapsules during phase changes and rereleased when required. This results in a smaller temperature fluctuation amplitude and thus a more uniform room temperature. Temperature smoothing Since the PCM microcapsules store the absorbed heat and release it again once the room temperature drops below the predefined value, Alba balance plasterboards reduce temperature fluctuations. In order to achieve the desired effect within the human comfort zone, the choice of board type is governed by the need for the correct phase change temperature (23 or 26 C). Temperature smoothing should not be confused with an air-conditioning or heating system, as the PCM microcapsules do not generate any heat or cold but instead simply temporarily store it. However, this can be used to lower the peak load of mechanical air-conditioning and significantly reduce heating consumption. 4

5 Temperature equalisation with Alba balance plasterboards. Keep wall temperatures in the comfort zone The fact that the PCM microcapsules in Alba balance plasterboards offer a reduction in fluctuations between maximum and minimum wall temperatures compared to lightweight walls has been proven with measurements conducted in a reference room of the Fraunhofer Institute for Solar Energy Systems in Freiburg, Germany (Alba balance test report). This measured the wall temperatures of a simple panelled lightweight wall with 12mm (plasterboard) drywall and a plasterboard wall consisting of 2 x 12.5mm PCM boards with a melting point of 26 C. The results conclusively demonstrated that the peak levels of PCM boards remained consistently below those of lightweight boards. Reduce maximum room temperatures Walls heat absorption and emission properties have a significant effect on room temperature. Measurements conducted in a reference room on various drywall varieties attest to this. Classic (plasterboard) drywall panels have the widest fluctuations and reach the highest temperature in the course of the day. Due to their higher mass, conventional Alba (solid) plasterboards already produce slightly lower maximum temperatures. However, the top performers were Alba balance plasterboards with PCM microcapsules: thanks to their Temperatur ( C) Temperature ( C) ( C) Temperature ( C) Wall temperature ( C) Classic drywall panels (plasterboard) Plasterboards with PCM Day of the year Alba balance plasterboards ensure reductions of up to 2K in wall temperature measurements compared to classic (plasterboard) drywall panels Room temperature ( C) latent heat storage properties, the peak values can be reduced by another 1.5K. In addition, a long-term comparison shows a considerable reduction in temperature fluctuation amplitude Day of the year Classic drywall panels (plasterboard) Classic plasterboard panel (solid plaster) Plasterboards with PCM For walls with Alba balance plasterboards, the room temperatures measured over a longer period of time remained consistently in the comfort zone between 22 and 25 C (with the exception of a handful of peaks and troughs). 5

6 Summer and winter, day and night. 26 C 24 C 17 C Classic drywall panels (plasterboard) Plasterboard with PCM Alba balance plasterboards emit heat evenly, largely neutralising temperature differences between floor and ceiling. 19 C 19 C 19 C Comfort through natural temperature equalisation An even room temperature increases the productivity and physical comfort of those in the room. As the PCM microcapsules introduced into the plaster ensure natural temperature equalisation, Alba balance plasterboards are able to achieve this with considerably reduced use of energy. The boards also release the heat evenly, ensuring that there is no difference in temperature between the floor and ceiling. Draughts and other unpleasant side effects of mechanical air-conditioning systems are also reduced. Phase transition Increased comfort thanks to effective thermal insulation in summer Highly effective insulation and airtight construction Temperature T T m sensitive latent sensitive sensitive methods in buildings with large windows prevent trapped heat from escape back outside. Alba balance plasterboards offer an easy solution to this problem: as they absorb ambient heat above the comfort Heat Q Classic drywall panels (plasterboard) Plasterboards with PCM zone and then rerelease it when there is sufficient nighttime ventilation (air exchange rate of 3 to 4), they ensure efficient heat insulation in summer. Under strong sunlight, classic (plasterboard) drywall panels heat up in parallel to the heat input. With Alba balance plasterboards, on the other hand, the heat is absorbed by the PCM microcapsules. Dynamic heat capacity, based on layer thickness [kj/(m K)] Concrete Sand-lime brick Brick Lightweight Wood Glass wool Alba balance Save space with more compact space storage Slowing down heating in summer and cooling in winter requires as high wall thicknesses as possible in solid construction. With phase-change material (PCM), this heat exchange requires significantly reduced weight and mass. A plasterboard partition wall with 2.5cm Alba balance panels on each side (+ 5cm insulation) can store as much heat as a brick wall 20cm thick. This saves space and increases the yield of commercial properties. 6 The dynamic heat capacity of Alba balance plasterboards in the PCM microcapsule melting range (21 to 24 C) compared to walls made of conventional construction materials.

7 Increase comfort and save energy with Alba balance plasterboards. Case study Minergie-P-Eco residential building: soak up the sun and enjoy comfort. In order to ensure optimal implementation of the thermal storage mass in the timber structure, together with the timber structural engineer and the energy planner we sought alternatives to complicated and bulky solutions. We eventually concluded that Alba balance plasterboards were very well suited to our directly solar powered house concept primarily because they are thinner and significantly lighter than other options. We used Alba balance plasterboards for walls and ceilings in rooms which receive high levels of heat from the sun. This provides additional sound insulation for ceiling areas, improves the indoor climate in summer and helps to store heat in winter. The additional production cost expenditure of approx. 1.25% is easily justified by the increase in living comfort and the anticipated energy savings. Stephan Spaar, HTL-qualified architect, partner at 5 Architekten AG Property: apartment building on Poststrasse, Spreitenbach Use: 7 freehold apartments across 3 floors and one attic floor Developer: Poststrasse construction consortium, c/o 5 Architekten AG, Wettingen Architecture and planning: 5 Architekten AG, Wettingen Energy planner: Solararchitektur GmbH, Chur Timber structure: Timbatec GmbH, Thun Case study private villa in Tessin: eco-friendly construction and healthy living. In this property, thermal mass for heat storage was lost due to the internal insulation required for the exposed concrete façade. We assessed a number of scenarios which might compensate for this loss, and the option of using a construction material containing PCM emerged as the ideal solution. Its low space requirements, high storage capability and ease of processing were the key factors in this decision. We used the new Alba balance plasterboards as panelling for walls and ceilings in rooms which receive high levels of heat from the sun, and also as internal insulation for the façade walls. Since environmental protection and healthy living is very important to us, we were happy to accept the marginal cost increase. Property: Private villa on the Via i Quádra, Novaggio Architecture: Studio d architettura Jean-Patrick Jaccard, Caslano Energy planner: Moggio Engineering SA, Bioggio Jean-Patrick Jaccard, STS/OTIA-qualified architect, proprietor of Studio d architettura 7

8 Where you create sustainability in construction. Alba balance plasterboards do more than simply provide your construction projects with efficient passive climate regulation they also make an effective contribution to protecting the environment. Thanks to their excellent ecological credentials, they can be seamlessly included in the efforts for sustainable construction and to improve buildings energy efficiency. Their technical and economic advantages are winning over those responsible for their active implementation.

9 Alba balance plasterboards for eco-friendly construction concepts. Energy-efficient construction concepts Intelligent construction in accordance with the Minergie-P-Eco standard or with low-energy, passive or self-sufficient active housing concepts could sustainably reduce Switzerland s CO 2 emissions. As an ecologically responsible construction material, Alba balance plasterboards can help to achieve this goal. Their thermo-active properties increase individual wellbeing in buildings with thick shells, and solve the issue of heat insulation for large windows in summer without additional (or with hugely reduced) energy consumption. Enormous potential for old buildings According to the Swiss Federal Office of Energy (SFOE), the energy needs of all Swiss residential and commercial buildings can be reduced by 50 to 70% in the long term. As well as for new builds, there is great potential for saving energy by renovating old buildings. However, so-called surface renovation is still very widespread when restoring existing buildings. Alba balance plasterboards can be used to quickly and economically introduce thermal mass into old buildings, motivating the homeowners to ecologically upgrade their holdings. Closed cycles for construction materials Alba balance plasterboards achieve an excellent ecological balance. Made from the natural raw material plaster and non-toxic paraffins for the PCM microcapsules, they are totally harmless to humans. Considerate management of Rigips Swiss quarries and their subsequent renaturalisation, energyefficient panel production, short transport distances and the recycling of waste and dismantled building materials all serve to protect the environment and ensure a closed cycle. Together with ecologically responsible construction methods, technical installations and energy systems, a building s ecological balance is also affected by its construction materials, as well as their transport and disposal. This means that the entire life-cycle from cradle to grave must be considered as a whole. 9

10 Environmentally sound and economically attractive. Reduction in CO2 emissions Alba balance plasterboards are manufactured in Rigips Swiss factories using local raw plaster. This ensures short transport distances from the quarry to the production plant and on to the market. The manufacturing process uses cutting-edge, energyefficient, latest generation burners as well as environmentally-friendly natural gas and green electricity. Once installed, the boards do not produce any additional CO 2 emissions: in fact, they help to reduce the energy consumption associated with heating and the use of mechanical ventilation and air-conditioning systems, which continue to consume power even after their construction is complete. As a building s environmental balance is affected to a considerable extent by the manufacturing processes of the construction products it contains, Rigips is continually reducing its factories CO 2 emissions and has also filed binding reduction targets with the federal authorities. In light of global warming, investment in mechanical cooling systems is becoming more and more significant. In many cases, installing comparatively cheap Alba balance plasterboards considerably reduce the building service equipment costs. Worthwhile investment In ideal conditions, energy-efficient refurbishment and the use of PCM materials can entirely remove the need to install air-conditioning systems or considerably reduce the required size of such systems. This significantly lowers investment costs for building service equipment. Thanks to their economic construction, low operating weight and easily-achieved high-quality Q3 surface finish, the minimal additional costs of the boards are negligible. The high level of flexibility as regards changes of use, the removal of the need for drying time and the space gain offered by the plasterboards all provide additional economic benefits. 10

11 Responsible construction with Alba balance plasterboards. Reduce energy and operating costs Depending on the building s construction type and technical equipment, using Alba balance plasterboards can cut cooling energy requirements by up to 50% and also significantly reduce heating consumption. This helps the environment and also lowers operating costs. By removing the need to install mechanical air-conditioning, the purchase of PCM plasterboards will pay off within just a few years. As energy prices will continue to increase over the coming years, the payback period is becoming increasingly short! This combined with the fact that the wall panels have no maintenance costs. Medium and long term energy prices are demonstrating a purely upward trend for both fossil fuels and electricity. Increasing energy efficiency by constructional means is therefore an ecological and also economical necessity. Long service life and eco-friendly RiCycling PCM microcapsules are as ecologically harmless and durable as the natural construction material plaster. RAL endurance testing has demonstrated that the melting and liquefaction process used for heat storage and emission can be repeated indefinitely. This guarantees the Alba balance plasterboards a service life of at least 30 years. Segments and dismantled building materials can be easily reprocessed in the Rigips RiCycling plant, and subsequently used to produce new Alba panels. In September 2011, Rigips put Switzerland s first reprocessing plant for plaster segments and dismantled plaster building materials into operation in Granges. This move relieves the burden placed on landfills and saves valuable local resources. 11

12 Where people feel comfortable. Besides their thermo-active properties, Alba balance plasterboards with phase-change material offer all the familiar advantages of drywall construction: a healthy indoor climate without formaldehyde, plasticiser or similar emissions, natural regulation of air humidity, pleasant surface temperatures all year round, excellent sound insulation and maximum flexibility. Their extremely smooth surface provides a perfect appearance. This produces rooms where people feel comfortable at work and at play.

13 Alba balance plasterboards for new builds and renovations. Ideal for residential and commercial buildings Whether conventional or air-conditioned, traditional or complying with the Minergie standard Alba balance plasterboards ensure a balanced room climate anytime, anywhere. This makes them equally suitable for residential homes and industrial, office, commercial and public buildings. As PCM boards also absorb exhaust heat from office equipment and lighting, in many cases they eliminate the need to retrofit air-conditioning systems or devices when renovating older commercial buildings. Versatile particularly for wooden structures Alba balance plasterboards have extremely versatile applications as panelling for façade and partition walls or alternatively as cladding for suspended ceilings, wooden beam ceilings and attics. In wooden structures, they enable the thermal mass to be brought up to the level of a solid or conventionally designed building. This creates unprecedented levels of comfort and counters many common preconceptions of timber constructions. Renovations with interior wall insulation Energy-efficient improvements are often made to old buildings using interior wall insulation. As these separate the solid external walls from the interior rooms, the heat stabilising effect of the brickwork is lost. The thermo-active properties of PCM compensate for this drawback. Whilst a conventional lightweight façade panel with 2 x 12.5mm (plasterboard) drywall panels achieves a heat storage capacity (C eff) of approx Wh/m 2 K, a façade panel using 1 x 25mm Alba balance plasterboards reaches 72.5 Wh/m 2 K. Life and work should also be healthy and comfortable in energy-optimised buildings. Alba balance plasterboards help to improve the environmental balance of buildings where they are used, and also to increase comfort levels. 13

14 Alba balance plasterboards for walls and wall panels. Plasterboard interior wall insulation Plasterboard metal-framed wall Plasterboard exterior wall in timber structure Plasterboard cladding for wooden frameworks 14

15 Alba balance plasterboards for ceilings and attic extensions. Plasterboard cladding for suspended ceilings Plasterboard cladding for wooden beam Plasterboard cladding for heated/chilled ceilings Plasterboard attic extension 15

16 Alba balance plasterboards. The choice is yours. Product range Melting point Latent heat Board type Board size Basis weight Room temperature storage (dh) Width x length x thickness 23 C 300 kj/m 2 Alba balance x 1000 x 25 mm 25 kg/m 2 26 C 330 kj/m 2 Alba balance x 1000 x 25 mm 25 kg/m 2 Technical data Identification Pale pink Gross density approx kg/m 3 Basis weight approx. 25 kg/m 2 Latent heat (dh) Specific heat (C) kj/m 2 = 83 Wh/m 2 (operating temperature 23 C) 330 kj/m 2 = 91 Wh/m 2 (operating temperature 26 C) 28.3 kj/m2 K Total storage capacity (10 30 C) 866 kj/m 2 Flexural strength approx. 8.8 kg/cm 2 Hardness (Shore) 52 Compressive strength 3.9 N/mm 2 Shear strength 1.4 N/mm 2 Adhesive strength > 0.25 N/mm 2 Building material class (DIN EN 13826: ) Fire class Characteristics Thermal conductivity Indicative test B S2 d0 5.3 (flame-retardant, low smoke formation) Ridge and groove profile round all edges λ 0.27 W/mK Water vapour diffusion resistance μ 5 10 Processing Surfaces Finish Drill, saw or mill, never chisel Spackle in joint areas or all over Paint, wallpaper, top coat or tiles 16

17 Alba balance plasterboards. Good service all round. Technical advice Experienced in-house and field service technical advisers support your detailed planning and offer you comprehensive information on all design types. We are also happy to advise you on special requirements, for example walls with high sound insulation requirements or with increased fire protection properties. Quotations, costings, logistics Quotation documents and calculation bases are available to you on CD-ROM or on our website. For more complex properties, we prepare a tender if desired and provide the corresponding material lists. It is also our policy to ensure punctual delivery to the construction site using our special cranes. RiCycling Thanks to our unique RiCycling concept, we ensure environmentally-sound disposal and reprocessing of plaster segments and dismantled plaster building materials. With each order, you will receive a number of Big Bags delivered to the construction site as collection containers. Full bags are collected by our partners, presorted and delivered to our RiCycling plant. For further information: Tel or 1

18 Drywall plasterboard. Expansion that makes sense. Uses Rigips Alba Wall systems Ceiling systems Floor systems Room systems Timber structures Prefabrication Mouldings Processing Plaster and surfaces Auxiliary equipment Service Planning and implementation Lightweight walls Façade walls Cladding Suspended ceilings Cladding Coffered acoustic ceilings Jointless acoustic ceilings Dry flooring Lightweight walls and ceilings for large heights and spans Room-in-room constructions Stiffening panels Lightweight walls Façade walls Cladding Dry flooring Rigips Domes Panelling Rigips Alba Adhesive Grout Filler and white plaster Machinery Tools Equipment Rigips Alba Advice Training and further training Tender/costing Material list Logistics RiCycling Plasterboard walls Partition walls Façade walls Cladding Suspended ceilings Cladding Rigips AG Gewerbepark Postfach 5506 Mägenwil AG Tel: Fax: Änderungen vorbehalten