| Feature: | Heat Insulation |
|---|---|
| Material: | Rock |
| Refractoriness: | 200-450°C |
| Apparent Density: | 12~96kg/m³ |
| Diameter: | 20mm-900mm |
| Surface Treatment: | No |
| Customization: |
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Suppliers with verified business licenses
Audited Supplier Exterior wall rock wool board raw materials using natural volcanic rock, is non-combustible building materials fireproof materials.
Main fire protection characteristics:
⊙, A1, the highest fire classification, is ableto effectively prevent the spread of the fire.
⊙ The dimensions are very stable and do not extend, contract or deform in fire.
⊙, the abletemperature withstands the melting point above 1000ºC.
⊙ No smoke or burning droplets/debris is generated in the fire.
⊙ No substances and gases harmful to the environment are released in the fire.
Heat preservation and insulation
Exterior wall rock wool board fiber slender and flexible, low slag ball content. Therefore, low thermal conductivity, with excellent thermal insulation effect.
Sound absorption and noise reduction
Rockwool is an ideal sound insulation material. A large number of slender fibers form a porous connection structure, which determines that rockwool is an excellent sound absorption and noise reduction material.
hydrophobicity
Hydrophobic rock wool products hydrophobic rate can reach 99.9%; Very low water absorption, no capillary penetration.
Moisture resistance
When the relative humidity is high, the volume moisture absorption rate of rockwool is less than 0.2%, and the mass moisture absorption rate is less than 0.3% according to ASTMC1104 or ASTM1104M method.
non-corrosive
The chemical properties of rock wool are stable, PH value is 7-8, neutral or weakly basic, for carbon steel, stainless steel,
Aluminum and other metal materials are free from corrosion.
Safety and environmental protection
Rockwool tested does not contain asbestos, CFC, HFC, HCFC and other harmful substances to the environment. Will not be corroded or mildew and bacteria. (Rockwool has been recognized as non-carcinogenic by the international Cancer Research Authority)
Rock wool external insulation system construction points
1. Before construction, a special construction plan for energy conservation and heat preservation of the project shall be prepared according to the design, requirements of this regulation and relevant technical standards, and the construction personnel shall be provided with technical disclosure and professional technical training.
2. The construction of the rockwool board external insulation system for energy-saving insulation projects shall be carried out in accordance with the qualified construction drawing design documents and the approved energy-saving insulation special construction scheme for engineering projects.
3. The manufacturer of rock wool board external insulation system should have professional personnel to provide on-site guidance in the construction process, and cooperate with the construction unit and on-site supervision to do a good job in construction quality control.
4. Materials must be accepted in accordance with specifications, quantity and quality requirements before they can be stored, and they should be kept by specially-assigned personnel. Outdoor stacking is strictly prohibited. Curtain wall rock wool board should be stacked overhead moisture-proof.
5. Construction shall meet the following conditions:
(1) The basic wall and its cement mortar screed are treated and the embedded parts are installed.
(2) Necessary construction machines and protective equipment should be ready.
(3) construction of special scaffolding should be set up firmly, safety inspection qualified. The distance between the scaffolding pole and the horizontal pole and the wall and the corner should meet the construction requirements.
(4) The base wall should be solid and flat, the surface is dry, there should be no cracking, empty drum, loose or causticity, the bond strength, flatness and verticality of the cement mortar screed layer should meet the quality requirements of the ordinary plastering project GB50210 (building decoration engineering quality acceptance code).
6. During the external insulation construction of the exterior wall of the rock wool board, the construction shall not be carried out when the ambient temperature of the base and construction is lower than 5ºC. Construction shall not be allowed in windy weather, rain and snow weather of grade 5 or above. During and after construction, effective measures should be taken to prevent rain erosion and sun exposure, and a protective layer should be made in time. In case of rain during construction, measures should be taken to prevent rain from scouring the wall; Winter construction should be in accordance with the relevant standards to take anti-freezing measures.
7. Before large-scale construction, the sample wall shall be made of the same material, construction method and technology on site according to the regulations, and the construction can only be carried out after being confirmed by the parties concerned.
8. When using rock wool board for construction, operators should wear protective equipment, do a good job of occupational health protection, and pay attention to construction safety.
9. The required materials related to the rock wool board external insulation system shall be sent to qualified testing institutions for testing, and can be used only after passing the testing.
10. The paste of rock wool board should adopt the strip adhesion method or the point adhesion method, and the adhesive area should not be less than 50%. Rock wool board after the adhesive, should be the bottom of the insulation board and the base paste, rock wool board should bottom up along the horizontal direction transverse laying, and should take side paving side anchoring, plate seam should be naturally tight, between the board gap shall not be greater than 2mm, such as seam width 2mm, should be filled with thermal insulation materials, adjacent board surface should be flat, height difference between the boards shall not be greater than 1.5mm.
11. All wall-penetrating pipelines and components that can reach the rock wool board shall be filled with the same material at the outlet and then treated with waterproof sealing.
12. If the veneer is found to fall off during the construction process, it should be fixed by bonding or anchoring with anchorage parts in time, and the construction of the external finishing layer should be carried out in time.
13. Plastering layer construction shall meet the following requirements:
(1) After pasting the rock wool board, the plastering surface of the board should be treated with a stainless steel spatula on the entire surface coated with scraping mortar (thickness 1 ~ 1.5mm), and pressed into the surface fibers of the rock wool board.
(2) The plaster paste should be configured in strict accordance with the product instruction manual, the configured adhesive should avoid direct sunlight, and should be used up within 2h.
(3) the plastering layer is divided into two layers. The thickness of the first layer of plastering glue is 2 ~ 3mm. It should be plastered with stainless steel serrated spatula first, then flattened with a large spatula, and pressed into the glass fiber mesh cloth while wet. When the glue is slightly dry and hard enough to touch, the anchor parts should be installed, and the plastic disc and its surrounding parts should be blocked with plastering glue. The first layer of plastering mortar slightly dry can be carried out on the second layer of plastering mortar construction, thickness of about 2mm, smooth and make the plastering layer thickness to meet the design requirements.
(4) the laying of the net cloth should be smooched and straightened, and keep the square and perpendicularity of the Yin and Yang Angle. There should be lap joints between the upper and lower parts of the net cloth, and the lap width should not be less than 100mm; Glass fiber mesh cloth shall not be directly laid on the surface of the rock wool board, shall not be exposed, shall not dry lap.
(5) The installation of anchoring parts shall be based on the position required by design, and the drilling depth shall be 10mm greater than the anchoring depth. During installation, the anchoring nails shall be hammered into or screwed into the wall, the disk shall be close to the first layer of grid cloth, and the disk and its surrounding shall be covered with plaster paste in time [1].
Matters needing attention
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1. Pay attention to rain prevention, can not be constructed in rainy days.
2 for cold must be in the moisture-proof course, in the condition of special low temperature, with rock wool without resin insulation, the moisture-proof course must also be fireproof
3. When the temperature exceeds a certain temperature, such as 200ºC, the insulation must be appropriate external protection, so that the thickness and bulk density of the rock wool board will not change.
4. About large diameter and flat wall equipment with rock wool product insulation, more than 200ºC, must bear in mind the rock wool board manufacturer's advice: add insulation nails, (spacing 400mm or so) outer protection to close.
5. The equipment, nails and pipes that need to be insulated can accept appropriate coating in order to facilitate anti-corrosion. In addition, there should be no leakage. This can achieve better results.
6 rock wool board finished products in the case of outdoor thermal insulation susceptible to mechanical wear should be appropriate to use metal or plastic wrapping, and then pay attention to the joint place, joint sealing, when necessary to add gum seals, packing layer stack local not less than 100mm
7. When the insulation object is placed at 90 degrees and there is a certain height, the insulation layer of the rock wool board must have positioning pins or supporting rings, and the spacing must not be greater than 3 meters to prevent the insulation data from sliding down when there is vibration.
8. In order to achieve the minimum target of heat loss, the joint of rock wool board and felt must be tightly jointed. If there are multiple layers of insulation, the cross joints need to be intertwined, so as not to form a hot bridge, and the cold bridge must be completely eliminated when keeping cold.
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