External Thermal Insulation Composite Systems (ETICS)
External Thermal Insulation Composite Systems (ETICS)
RODRÍGUEZ ROS
Rodríguez Ros is a company that applies and installs seismic systems, seismic isolators or anti-earthquake (anti seismos) for reinforcement, fastening and anchoring of: Walls, masonry, partition walls. As specialists in the rehabilitation of buildings and facades, we offer a seismic isolator service.
ENERGY EFFICIENCY IN SATE INSULATION WITH SIKA
If we seek to obtain energy efficiency in a building, we must obtain an ideal thermal insulation. The goal of Sika’s ThermoCoat External Thermal Insulation Composite Systems (ETICS) is to reduce energy consumption in newly-constructed buildings and also in the rehabilitation of existing ones.
WHAT DOES EXTERNAL THERMAL INSULATION CONSIST OF?
The External Thermal Insulation System (SATE Malaga) saves buildings on electricity bill costs as most of the buildings constructed have very poor or insufficient thermal insulation. Even more so in buildings that are more than 20 years old, which have insufficient SATE energy insulation.
ENERGY SAVINGS THANKS TO EXTERNAL THERMAL INSULATION
Improving the thermal insulation of a building means energy savings of 30-35% or more in many cases in heating and air conditioning consumption due to the reduction of losses, with the consequent reduction of CO2 emissions into the atmosphere.
Thermal insulation achieves:
Energy savings
Cost reduction
Improving healthy conditions
Respect for the environment
The installation of the SATE is especially indicated in the case of building renovation, as it allows the insulation problem to be easily solved without having to carry out works inside the homes, thus avoiding inconvenience to the owners.
INSTALLATION PROCEDURE SATEATE INSTALLATION PROCEDURE SATEATE INSTALLATION PROCEDURE
Installation of the insulation panels (expanded polystyrene (EPS)) are fixed to the external walls of the building with adhesive mortar and mechanical fasteners. After reinforcement with mesh, the decorative exterior cladding is applied.
- Energy saving in all types of buildings
- Installed externally without disturbing the home owners
- Increases the value of the house
- System that allows the reduction of the thickness of the walls of buildings and obtains a larger surface area for the home. Its installation in new buildings makes the traditional air chamber unnecessary, thus gaining 1 m2 of useful space for every 10 ml of façade.
- Reduced construction costs
- Continuous thermal insulation without thermal bridges.
- Ease of access to public subsidies/subsidies
- Long-lasting mineral coatings
- Reduced risk of condensation, the SATE systems are impermeable to water and permeable to water vapour.
The Sika ThermoCoat external thermal insulation system is a system composed of high quality and high performance elements, compatible with each other and forming layers from the substrate to the external finish:
Sika ThermoCoat-1/3 ES: Cementitious mortar, single-component, for bonding and regularisation of the thermal insulation panels.
Sika ThermoCoat-2: Expanded polystyrene insulation panels (EPS).
Sika ThermoCoat-2 Graphite: Expanded polystyrene insulation boards (EPS).
Sika ThermoCoat-4 ES: Glass fibre reinforcement mesh.
Sika ThermoCoat-5 ES TI: Pigmented acrylic primer.
Sika ThermoCoat-5 ES TF / TG: Protective and decorative acrylic-mineral coating for facades.
Sika ThermoCoat-5 ES TF Siltec / TG Siltec: Protective and decorative acrylic-mineral coating for facades.
Sika ThermoCoat-6 ES: PVC based corner profiles reinforced with glass fibre mesh.
Sika ThermoCoat-7 ES: Aluminium starter profile.
Sika ThermoCoat-8 ES: Mechanical anchoring.
- Installation of the starter profile: The Sika ThermoCoat-2 insulation boards are placed at a certain distance from the floor to avoid possible water absorption. The Sika ThermoCoat-7 ES U-shaped starter profiles are mechanically fixed to the substrate.
- Installation of the eps insulation boards: The insulation boards must be laid on clean, dry and well prepared substrates.
- Bonding of the eps insulation boards: Sika ThermoCoat-1/3 ES cementitious adhesive is used for this purpose.
- Mechanical fixing of the boards: The mechanical fixing of the boards depends on the type of building substrate, the type of insulation used, the weight of the system and the construction. Up to a weight of 30 kg/m2 and a height of less than 25 m, mechanical fixing is not compulsory. It is mandatory if it exceeds these guidelines and natural fibre insulation boards, cork, calcium silicate, gypsum board are used, which do not guarantee sufficient strength limits by their adhesion to the substrate alone. For insulation thicknesses greater than 10 cm it is always better to use mechanical fixing. Six fixings per square metre of board are installed, positioned at the corners of the board and one in the centre, for which holes are drilled and the dowels are inserted until they are fully penetrated. The dowels are then covered with mortar to prevent the formation of thermal bridges and to improve the adhesion of the following layers.
- Laying of the reinforcing mesh: Prior to laying the Sika ThermoCoat-4 ES mesh, the boards are coated with a first layer of mortar, called the base layer, approximately 1 to 2 mm thick. The mesh is then pressed into the mortar so that the fabric is perfectly embedded in the first layer. Once the first layer of mortar is dry, a second layer is applied to completely cover the mesh. The approximate thickness of the two layers is 4 mm. After a period of time, a sponge or trowel is used to smooth the surface.
- Finishing coat: Sika ThermoCoat-5 ES TF/TG and Sika® ThermoCoat-5 ES TF Siltec /TG Siltec are synthetic-mineral coatings based on acrylic dispersions modified with selected aggregates, especially suitable for the execution of waterproof, flexible and decorative facade coatings. It is recommended to use light colours, so as not to raise the temperature of the finished surface. The ‘HBW colour value must be greater than 25% of the reflection index.
Grants for housing rehabilitation, Ministry of Public Works: http://www.fomento.es
Certificación de Eficiencia Energética de los Edificios – Ministerio de Industria, Energía y Turismo: http://www.minetad.gob.es/es-ES/Paginas/index.aspx
IDAE, Institute for Energy Diversification and Saving: http://www.idae.es/
UNE EN 13163:2001: Thermal insulation products for building applications. Products manufactured from expanded polystyrene (EPS).
UNE EN 13496:2003: Thermal insulation products for building applications. Determination of the mechanical properties of fibreglass mesh.
UNE EN 13495:2003: Thermal insulation products for building applications. Determination of the pull-out resistance of composite systems for external thermal insulation (ETICS) (foam block test).
UNE EN 13497:2003: Thermal insulation products for building applications. Determination of the impact resistance of composite systems for external thermal insulation (ETICS).
UNE EN 13498:2003: Thermal insulation products for building applications. Determination of the resistance to penetration of composite systems for external thermal insulation (ETICS).
UNE EN 13499:2005: Thermal insulation products for building applications. Composite systems for external thermal insulation (ETICS) based on expanded polystyrene. Specification.
UNE EN 13501-1:2005: Classification according to the fire performance of construction products and building elements. Part 1: Classification based on data obtained in reaction to fire tests.
LEGISLATIVE REASONS FOR INSULATING BUILDINGS: In view of the need to establish rules and procedures to meet the basic energy saving requirements, in addition to other requirements established by the LOE (Ley de Ordenación de la Edificación), the: CTE, and with it the DB HE1.
In its section 1 referring to: Limitation of energy demand, it states that buildings shall have a ‘thermal envelope’ that adequately limits the energy demand necessary to achieve thermal comfort. Depending on the climate of the locality, the use of the building and the regime (summer or winter).
R.D. 47/2007 BASIC PROCEDURE FOR THE ENERGY EFFICIENCY CERTIFICATION OF NEWLY CONSTRUCTED BUILDINGS (R.D. 47/2007 approved on 19/1/07, published in the BOE on 31-1-07 and in force 1-11-07) where the necessary technical and administrative conditions are established.
R.D. 235/2013 BASIC PROCEDURE FOR THE CERTIFICATION OF ENERGY EFFICIENCY OF BUILDINGS: Royal Decree 47/2007, of 19 January, approving the Basic Procedure for the certification of energy efficiency of newly constructed buildings, is repealed. This Royal Decree came into force on 13 April 2013. The Royal Decree obliges all buildings that are bought – sold – rented to make the energy performance certificate available to the buyer. It establishes the adaptation deadlines for obtaining the energy certificate for buildings. It establishes that from 31 December 2020 new buildings must have nearly zero energy consumption (two years earlier for public buildings). All buildings must have maximum thermal transmittance (U) values in their ‘thermal envelope’. Each building is assigned an energy efficiency class, which takes the form of an energy label similar to those used for other consumer goods such as household appliances or lamps. It allows the energy performance and CO2 emission values of buildings to be assessed and compared, providing users with new purchasing criteria. The rating is valid for 10 years.
A: 75% savings.
B: 60% savings.
C: 35% savings.
D and E: strictly regulatory.
F and G: outside the law.
