SATE Beyem Forte

SATE BEYEM FORTE is an exterior thermal insulation system for façades based on the use of extruded polystyrene XPS as an insulating material and the use of acrylic mortar, polytylosan mortar or mineral coating as flexible and high performance finishes, in different granulometries and colours.

SATE BEYEM FORTE is intended for use as thermal insulation on the outside of building walls. The walls can be masonry (brick, block) or concrete (made in situ or based on prefabricated panels). The system is intended to provide the wall on which it is installed with satisfactory thermal insulation. This ETICS can be used on vertical surfaces, both in new buildings and in renovations. It can also be used on inclined or horizontal surfaces that are not exposed to rainwater. The system consists of non-load-bearing elements. The system does not directly contribute to the stability of the wall on which it is installed, but contributes to its durability by protecting it against natural agents.

The useful substrates for the application of BEYEM FORTE SATE are: In new construction:

• Brick or ceramic block masonry and thermo-clay masonry.
• Mortar rendering.
• Concrete block.
• Concrete (treated with Beyem Union Mortars type bonding bridge).

In rehabilitation:

• Mortar rendering.
• Single-layer cladding.
• Facing brickwork.

In cases not described, consult the Technical Department.

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 admissible tolerances of the substrate are:

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

 

System start-up The system can start above ground level or below ground level to give continuity to the thermal insulation system of the buried walls.

• Start-up above ground level: ETIC BEYEM FORTE must be limited in its contour by an aluminium start-up profile appropriate to the thickness of the XPS 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 ground level up to ≥ 30 cm in height, using Beyem Proof Flexible, to avoid dampness due to filtration or capillary action from the outside. The waterproofing must exceed the level of the starting profile by at least 15 cm. The waterproofing from zero level to the starting profile can be finished using Beyem Cril, Beyem Cril Polisiloxano Mortar or by laying a ceramic or natural stone skirting board, etc. using the Rodacal Beyem range of cementitious adhesives.
• Starting the system below ground level: In this case, an XPS insulating panel with a thickness less than or equal to the thickness of the XPS 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 same.

Laying of insulation boards The fixing of XPS boards shall be carried out with Beyem Adheterm adhesion mortar. The XPS insulation boards should be installed from the bottom upwards, with each row of boards resting on top of the previous row, 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 with a width of 5 cm around the entire 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 board edges 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 adhesion of the XPS boards, 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 panels. Installation of reinforcement profiles The corners and edges of existing  ETIC BEYEM FORTE  openings must be protected and reinforced by using reinforcing profiles. These should be installed at least 24 hours after fixing the XPS panels. The most common singular points are usually:

• Facade corners, windows and doors: PVC corner profile with fibreglass mesh is used. A layer of Beyem Adheterm is applied to the corner surfaces by 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 ETIC 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 corner reinforcement mesh (pre-cut mesh) is used.
• Accessible areas exposed to impact (skirtings): In the area to be reinforced, Beyem Adheterm is stretched over the XPS panels. The fibreglass mesh is then stretched horizontally and embedded in the adhesive mortar. This layer should be at least 1.5-2 mm thick. 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 installation, Beyem Adheterm will be spread over the XPS panels or over previously reinforced areas. The thickness shall be evened out 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 smooth should be applied to prepare the coating prior to finishing. The minimum thickness of the Beyem Adheterm coating layer on the board should be 3 mm. Decorative finish Beyem Cril Mortar or Beyem Cril Polisiloxano Mortar The decorative finish consists of two phases:

• Beyem Cril Fondo Liso: At least 48 hours after the last smoothing coat of Beyem Adheterm, a coat of Beyem Cril Fondo Liso, optionally diluted with 5% water, shall be applied, allowing it to penetrate the surface Beyem Cril Fondo Liso can be applied by brush, roller or spray. This primer acts as an absorption equaliser and adhesion promoter for subsequent finishing with Petrex 5 Acrylic Mortar or Petrex 5 Polysiloxane Mortar. If the mortar is to be applied with a cut-out, it is advisable to apply a second coat to reinforce the parts where the pattern will be marked.
• Beyem Cril Mortar or Beyem Cril Polisiloxano Mortar: At least 6 hours after the previous phase, apply Beyem Cril Mortar or Beyem Cril Polisiloxano Mortar 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 the trowel or trowel by moving the guide aggregate (1 mm, Fine and 2 mm Coarse).

Decorative finishing 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 there are any burrs left on the substrate or from previous coats, or if it is considered convenient, a third finishing coat can be applied.
• Beyem Pro H Plus: 24-48 hours after the application of the last coat of Beyem Thermidur F, a protective water-repellent coat must be applied by roller, brush or spray gun. 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 will be carried out by using the Light Load Anchoring Spiral at least 48 hours after the application of Beyem Cril Mortar, Beyem Cril Polisiloxano Mortar or Beyem Thermidur F. 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.

The façade will be finished with BEYEM FORTE ETICS with ETE number 21/0061 under EAD 040083-00-0404, consisting of: EPS Graphite EPS boards according to UNE-EN 13163, with thermal conductivity 0.032 W/mK and Euroclass E for reaction to fire and thickness _____. The boards shall be laid horizontally, from bottom to top and at a break in relation to the previous row. The fixing and coating of EPS Graphite boards shall be carried out with Beyem Adheterm shrinkage-compensated polymer modified mortar, covering a minimum of 60% of the insulating board bonding surface. The adhesion of the boards will be complemented with anchor plugs according to EAD 040083-00-0404 at the rate of at least 6 dowels per m2, increasing to at least 8 dowels per m2 in heights above 25 m. Subsequently, the insulation boards are to be covered with Beyem Adheterm reinforced with 160 g/m2 alkali-resistant glass fibre mesh. Subsequently, the finishing coating ________________ in colour ________________ and texture finish _________ will be applied. Specific profiles are included to treat corners, lintels, changes of plane, expansion joints, joints, jambs, trims and other façade elements.

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.