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| ATLAS STOPTER K-10 THERMAL INSULATION SYSTEM |
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ATLAS STOPTER K-10 COMPOSITE THERMAL INSULATION SYSTEM WITH POLYSTYRENE BOARDS
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| ATLAS STOPTER K-10 is a thermal insulation system of buildings, a corporate version of the method included in guidelines of the Building Research Institute no. 334/2002 – “Jointless thermal insulation system of external building walls.” The thermal insulation technology consists in fixing thermal insulation made of foamed polystyrene boards to the external building walls and preparation of a reinforced layer and, optionally, a paint coating on the insulation. It can be used in new and existing buildings. ATLAS STOPTER K-10 system with foamed polystyrene boards max. 250 mm thick is classified as not spreading fire (NRO).
The system has been given Technical Approval no. AT-15-4947/2004 by the Building Research Institute and Certificate of Conformity no. 373/W by the Building Research Institute.
Thermal insulation
In case of ATLAS STOPTER K-10 system, the thermal insulation comprises of seasoned self-extinguishing polystyrene boards EPS 70--040 or EPS 100-038. If the base, ground floor and, in particular, the underground part of the building is insulated, use extruded polystyrene boards for the thermal insulation layer. Thermal insulation thickness should be selected individually for each wall in the building, among others, on the basis of overall heat-transfer coefficient Uk. It should comply with thermal insulation requirements of partitions specified in applicable technical regulations which buildings and their location should comply with. |
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Moreover, carry out all work in accordance with information included in the technical project of the thermal insulation, guidelines of the Building Research Institute of no. 334/2002, Technical Sheets of individual system components and other ATLAS technical instructions. The technical project should be individually developed for each building and take into account all requirements of applicable legal requirements and standards, in particular regarding partition insulation, energy requirements, structural safety and fire safety. Carry out thermal insulation work in favourable weather Substrate and ambient temperature during work and when individual materials dry should be from +5°C to +25°C. The façade should be covered and protected from precipitation, direct sunlight and strong wind.
Substrate
ATLAS STOPTER K-10 system can be used to insulate plastered or not plastered solid concrete walls as well as walls made of bricks, aerated concrete blocks, concrete and structural clay tiles. The substrate should be even, structurally sound and free from anything that may impede mortar adhesion. Hammer off loose or flaking elements and fill in defects using materials recommended for that purpose e.g. ATLAS PLASTERING MIX, ATLAS LEVELLING MORTAR. Wash off under pressure or scrape off the remainder of poorly adhering paint coats. In case of weak, dusty or highly absorptive substrates, prime using ATLAS UNI-GRUNT.
Foamed polystyrene board fixing
Begin with fixing a skirting board on the wall. It ensures even level maintenance in case of the first and successive layers of foamed polystyrene boards and reinforces the lower system edge. It should be fixed on the base of the building not lower than 30 cm under the ground level. This distance ensures system protection from capillary moisture and secures the plaster coating from dirt such as mud caused by raindrops falling on pavement or ground. Skirting boards can be replaced by reinforcing mesh or two layers of glass fibre mesh.
When the skirting board is fixed, begin application of the thermal insulation. Fix the first row of boards on the basis of the initial board. Place successive boards alternatively. This is applicable on the wall surface and in building quoins. The main component that fixes foamed polystyrene to the substrate is ATLAS STOPTER K-10 adhesive. The circumferential block located along board edges should be at least 3 cm wide. Evenly distribute 6÷8 patches of 8÷12 cm in diameter on the remaining surface. The mortar applied should cover at least 40% of board surface. Place the board on the substrate and press it down the substrate immediately after mortar application. In some cases, use ca. 4÷5 plastic fasteners for 1 m2. Use mechanical fasteners in corners of buildings or in case of foamed polystyrene that is more than 15 cm thick. Additional mechanical fixing is required if thermal insulation of buildings is more than 12 m high or if load capacity of the substrate is low and difficult to determine. Details as to the quantity, type and length of fasteners and their arrangement should be included in the thermal insulation project. Begin additional fixing of the thermal insulation using mechanical fasteners not earlier than 1 day after board fixing. The anchoring depth of additional fixing elements in the structural wall layer made of solid materials should be min. 6 cm. In case of cavity bricks, structural clay tiles or cellular concrete blocks, fasteners need to be anchored min. 9 cm deep.
Reinforced layer
The reinforced layer consists of a reinforcing mesh made of glass fibre set in ATLAS STOPTER K-20 adhesive. The mesh recommended for STOPTER system is characterised by appropriate mechanical strength, regular and durable braid, and resistance to alkali. Begin preparation of the reinforced layer not earlier than 3 days after board fixing. Start from grinding possible irregularities of foamed polystyrene boards. To improve resistance of the thermal insulation layer to mechanical damage, apply ATLAS aluminium corner boards on all vertical building quoins as well as door and window casings. Then, reinforce wall surfaces near the contact places of vertical and horizontal quoins of window openings and doorways by setting in ca. 20x30 cm mesh strips. The strips should be at the angle of 45° in relation to the lines determined by reveal edges. To prepare the reinforced layer, distribute ATLAS STOPTER K-20 adhesive evenly on the whole thermal insulation surface and then set in successive mesh strips. It is convenient to first press the mesh into the mortar only in a few places and then set in the whole strip using a notched float. If the mesh is set correctly, it is not visible under the adhesive; it should not directly contact board surface. The reinforced layer has to be continuous i.e. successive mesh strips should overlap min. 10 cm, whereas overlaps in quoins should be min. 15 cm. Mesh overlaps cannot correspond with joints between foamed polystyrene boards. In justified cases, on ground floors and on bases, apply two mesh layers. Finally, smooth the reinforced layer using a float made of metal. The work has to be very careful not only due to structural reasons, but also because of layer appearance. If there are any irregularities after smoothing, grind them off. Due to small thickness of the plaster coating (1.5 mm, 2 mm and 3 mm), any irregularities in the reinforced layer may prevent correct plaster coating preparation.
Finishing layer
The finishing layer of ATLAS STOPTER K-10 system may consist of thin-layer plaster or thin-layer plaster covered with façade paint. The finishing layer should be selected on the basis of, among others, thermal-humid calculations for wall thermal insulation and conditions of thermal insulation system utilisation. Begin the finishing layer after ca. 3 days after application of the reinforced layer. Regardless of the type of ATLAS thin-layer plaster applied on the thermal insulation, prepare a priming layer made of priming mass on the reinforced layer. The priming coat should be appropriate for a given render type: ATLAS CERPLAST mineral and acrylic renders, ATLAS SILKAT ASX silicate renders, ATLAS SILKON ANX silicone renders. The priming coat will prevent any contamination of adhesives from reaching the render layer, reinforce the substrate and increase plaster adhesion to the substrate. Moreover, priming coats may serve as temporary protective layers of the reinforced layer (before plaster is applied) for up to six months from their preparation. The plaster coating can be made of: mineral renders - ATLAS CERMIT SN, SN-MAL, DR, acrylic renders - ATLAS CERMIT N and R, silicate renders - ATLAS SILKAT N and R, or silicate renders ATLAS SILKON N and R. All the mortars and mixes are thin-layer renders of aggregate grain size from 1.5 mm to 3.0 mm (depending on render type). To paint them, use ATLAS ARKOL E acrylic paint, ATLAS ARKOL N silicone paint or ATLAS ARKOL S silicate paint, in accordance with the technology described in respective Technical Sheets. Plaster and paint colours are shown in the NEW ATLAS COLOUR PALETTE containing almost 700 items.
Layer arrangement of ATLAS STOPTER K-10
1. External wall
2. Primary fixing: ATLAS STOPTER K-10 adhesive
3. Thermal insulation layer made of foamed polystyrene boards
4. Additional fixing: plastic fastener
5. Reinforced layer: mesh set in ATLAS STOPTER K-20
6. Priming mass
7. Plaster coating
8. Paint coating
Primary fixing: ATLAS STOPTER K-10 adhesive
Thermal insulation: self-extinguishing foamed polystyrene boards EPS 70-040 or EPS 100-038, in accordance with PN-EN 13163:2004
Reinforced layer: glass fibre mesh set in ATLAS STOPTER K-20
Finish:
Variant 1
Prime coat: ATLAS CERPLAST.
Render: ATLAS CERMIT SN, DR mineral renders
Variant 2
Prime coat: ATLAS CERPLAST. Render: mineral mortars
ATLAS CERMIT SN, SN-MAL, DR. Paint: acrylic
ATLAS ARKOL E, silicate ATLAS ARKOL S or
silicone ATLAS ARKOL N
Variant 3
Prime coat: ATLAS CERPLAST. Render: acrylic ATLAS
CERMIT N or R
Variant 4
Prime coat: ATLAS CERPLAST. Render: acrylic ATLAS
CERMIT N or R. Paint: acrylic ATLAS ARKOL E
Variant 5
Prime coat: ATLAS SILKAT ASX. Render: silicate ATLAS
SILKAT N or R
Variant 6
Prime coat: ATLAS SILKAT ASX. Render: silicate ATLAS
SILKAT N or R. Paint: silicate ATLAS ARKOL S
Variant 7
Prime coat: ATLAS SILKON ANX. Render: silicone ATLAS
SILKON N or R
Variant 8
Prime coat: ATLAS SILKON ANX. Render: silicone ATLAS
SILKON N or R. Paint: silicone ATLAS ARKOL N
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| The system has been given Technical Approval no. AT-15-4947/2004 by the Building Research Institute and Certificate of Conformity no. 373/W by the Building Research Institute. |
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