SATE Beyem Classic Grafito

The aforementioned substrates must be sound, clean, free of paint residues, poorly adhered parts or substances that may hinder adhesion. All substrates must have adequate flatness and present a surface of adequate porosity and roughness. The substrate must not have clear problems of dampness and, where applicable, must have completed its curing shrinkage and its maturing period must have been respected. Weak, damaged or deteriorated concrete and, where necessary, sound concrete must be removed by suitable manual or mechanical means that do not cause vibration or impact. Heavily deteriorated substrates should be treated by sandblasting or similar method until a surface with minimum guarantees of roughness and tensile strength is obtained.  In case of heat, wind or on very absorbent substrates, it is advisable to moisten the substrate and wait for the water film to disappear. In general, the substrates must have adequate strength to support the coating (minimum adhesion of 0.15 MPa in a pull-off test). The permissible tolerances of the substrate are:

Variable	Situation	Tolerance, mm
Overhang	Between storeys Total building height	20 50
Axiality	Max. horizontal distance between the axes of the upper and lower walls	20
Flatness	In 1 m In 10 m	5 20

 

System start-up The system can start above ground level or below ground level giving continuity to the thermal insulation system of the buried walls. Start-up above ground level: SATE BEYEM CLASSIC GRAFITO must be limited in its contour by an aluminium start-up profile appropriate to the thickness of the EPS Graphite insulation board to be used. The starting profile must be positioned at least ≥ 15 cm from the ground, so that the system does not come into direct contact with the ground. Likewise, it must be waterproofed from level zero to ≥ 30 cm in height, using BEYEM PROOF FLEXIBLE or BEYEM PROOF ONE, to avoid damp due to filtration or capillary action from the outside. The waterproofing must be at least 15 cm above the level of the starting profile. The waterproofing from level zero to the starting profile can be finished using BEYEM CRIL, BEYEM CRIL Polysiloxane or by laying a ceramic skirting, natural stone… using Rodacal Beyem’s range of cementitious adhesives. Start-up of the system below ground level: In this case, an XPS insulating panel with a thickness less than the thickness of the insulating panel used in the system will be installed initially. This insulation board shall be buried and must protrude ≥ 15 cm above ground level. The starter profile shall be placed on top of the XPS panel, leaving a separation joint between the starter profile and the XPS panel of approx. 2-5 mm, which shall be sealed with polyurethane. Likewise, the aforementioned shall be taken into account with regard to the waterproofing (starting from ≥ 15 cm below the starting profile of the panels) and the finishing of the waterproofing. Laying of insulating boards The EPS Graphite EPS boards will be fixed with BEYEM ADHETERM adhesion mortar. The EPS Graphite insulating boards must be installed from the bottom upwards, with each row of boards resting on the previous one, except for the first row, which rests directly on the starting profile. At the corners, the ends of the panels should alternate. There are two different laying techniques depending on the planimetry of the substrate: Edge and point fixing: used on substrates with irregularities of between 5 and 10 mm (measured with a 2 m ruler) and for boards ≥ 40 mm. The contact surface with the substrate shall be at least 60%. To do this, BEYEM ADHETERM is applied 5 cm wide around the perimeter of the panel and about 2 cm from the edge of the panel and also in the centre of the panel, where several coats of adhesive mortar are applied. Fixing by means of a notched trowel: this is used when the flatness of the substrate is less than 5 mm measured with a 2 m ruler and for panels < 40 mm. BEYEM ADHETERM is spread over the entire surface of the board, keeping about 2 cm of the edges of the board free, and then combed with the help of a notched trowel of at least no. 10. Mechanical fixing of insulation boards At least 24 hours after the EPS Graphite boards have been adhered, additional mechanical fasteners must be installed, using anchor plugs in a minimum quantity of 6 units per m2 and 8 units per m2 in heights of more than 25 metres. The fixings shall be placed on the perimeter and in the centre of the slabs. Installation of reinforcement profiles The corners and edges of existing openings of SATE BEYEM CLASSIC GRAFITO must be protected and reinforced by using reinforcing profiles. These should be installed at least 24 hours after fixing the EPS Graphite panels. The most common singular points are usually: Corners of the façade, windows and doors: PVC corner profile with fibreglass mesh is used. A layer of BEYEM ADHETERM is applied to the surfaces that make up the corner, spreading it along the profile and the mesh, and then the profile is placed, pressing it gently. The protruding mortar is used to cover the mesh and the profile and to even it out. Window lintel and window sill: Window lintels should be reinforced with the PVC drip profile with mesh to prevent water run-off on the facade planes. The installation method is identical to that of the PVC corner profile with mesh. The sills must have a minimum outward slope of 10° to ensure water drainage. They must also have an overhang in the horizontal plane of about 3-4 cm with a drip edge that protrudes from the plane of the façade enclosure. The self-adhesive PVC window frame profile with fibreglass mesh allows the SATE to be connected to the frames of the window structure openings without leaving gaps or spaces. Top finish and expansion joints: The top finish of the façade must prevent water from running directly onto the façade. For this purpose, the crowning profile must be used and screwed in the same way as the starting profile. This profile should be installed before the last row of insulation boards and should overhang the horizontal plane by 3-4 cm. The upper part of the meeting point of this profile and the support where it is fixed must always be protected (by the eaves of the façade or overhang, another profile, polyurethane…). Expansion joints are resolved by using the PVC expansion joint profile with fibreglass mesh. The installation method is identical to that of the PVC corner profile, except that in this case there is a double edge. The strip contained in the profile is inserted into the expansion joint and then the cover of the profile is inserted. Fibreglass mesh reinforcement There are a series of singular points on the façade that must be reinforced with fibreglass mesh (Mesh 160). These reinforcements should be installed at least 24 hours after the insulating panels have been fixed. The singular points to be reinforced are: Corners of façade openings (windows, doors, …): 20×40 cm strips are cut and fixed with BEYEM ADHETERM at all corners (at 45o) or the corner reinforcement mesh (pre-cut mesh) is used. Accessible areas exposed to impact (skirting boards): In the area to be reinforced, BEYEM ADHETERM EPS Graphite boards are laid on top of the EPS Graphite boards. The fibreglass mesh is then stretched horizontally and embedded in the adhesive mortar. This layer must have a minimum thickness of 1.5-2 mm. The joints between the meshes must overlap by at least 10 cm. The installation of this reinforcement mesh shall be additional to the installation of the main mesh. Installation of the main fibreglass mesh After at least 24 hours from the installation of the reinforcement profiles and reinforcing mesh, the main mesh (Mesh 160) is installed, which is the mesh that covers the entire surface of the facing and overlaps with the rest of the mesh reinforcements that have been previously installed. For its installation, BEYEM ADHETERM shall be spread over the EPS Graphite panels or over previously reinforced areas. The thickness shall be regularised with a 6 mm trowel. On the combed surface, spread the mesh from top to bottom with an overlap of at least 10 cm between meshes. The mesh shall be pressed against the mortar grooves so that it is embedded. After 24 hours a second coat of BEYEM ADHETERM should be applied smooth to prepare the coating prior to finishing. The minimum thickness of the BEYEM ADHETERM coating layer on the board should be 3 mm. BEYEM CRIL or BEYEM CRIL Polysiloxane Decorative Finish The decorative finish consists of two phases: BEYEM CRIL FONDO: At least 48 hours after the last smoothing coat of BEYEM ADHETERM, apply a coat of BEYEM CRIL FONDO optionally diluted with 5% water, allowing it to penetrate the surface. BEYEM CRIL FONDO can be applied by brush, roller or spray. This primer acts as an absorption levelling agent and adhesion promoter for the subsequent BEYEM CRIL or BEYEM CRIL Polysiloxane finish. If the mortar is to be applied with a cut-out, it is advisable to apply a second coat reinforcing the parts where the pattern will be marked. BEYEM CRIL or BEYEM CRIL Polysiloxane: At least 6 hours after the previous phase, BEYEM CRIL or BEYEM CRIL Polysiloxane should be applied with a stainless steel trowel or spray gun, spreading it uniformly over the surface. Once it has lost its tackiness on the tool, proceed to finish the surface with a trowel or trowel. Decorative finish BEYEM THERMIDUR F The decorative finish consists of two phases: BEYEM THERMIDUR F: At least 48 hours after the last smoothing coat of BEYEM ADHETERM, apply a coat of BEYEM THERMIDUR F. A first coat should be applied with a clean stainless steel trowel to the dry substrate, spreading up to 1 mm thick. Wait for the first coat to dry until the product is dry and hard to the touch. At this point, apply the second coat of the product by scraping with the steel trowel to achieve the desired effect. If burrs have remained on the substrate or from previous coats or if it is considered convenient, a third finishing coat can be applied. BEYEM PRO H PLUS or Liquid Waterproofing: 24-48 hours after the application of the last coat of BEYEM THERMIDUR F, a protective water-repellent protective coat must be applied by roller, brush or spray. This must be applied from the top of the substrate to the bottom, taking care that the product does not run off. The application of two successive coats, if desired, should be done “wet on wet”. Both products are applied undiluted. Installation of light loads The installation of light loads on the system shall be carried out using the Light Load Anchoring Spiral at least 48 hours after the application of BEYEM CRIL, BEYEM CRIL Polysiloxane or BEYEM THERMIDUR. Maximum load 5kg.    

Tools and tools are easily cleaned with water before Beyem Adheterm or Beyem Thermidur F has hardened and Byem Cril or Beyem Cril Polysiloxane Mortar has cured. Cured or hardened product can only be removed by mechanical means.

For any information concerning safety issues in the use, handling, storage and waste disposal of chemical products, users should consult the most recent version of the MSDS of the products involved in this Data Sheet. Disposal of the products and their containers must be carried out in accordance with current legislation and is the responsibility of the final consumer of the products.