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What is the meaning of "channel" and "layer" in the practice of polymer waterproofing membrane?
- such as:
Roof specification, 4mmSBS in a class Ⅲ waterproof for a, and 3mmSBS coil for Ⅲ grade roof waterproof, although a layer of waterproof, but did not meet the specifications, not a waterproof. In the Ⅱ level (two waterproof) Ⅰ (three waterproof) waterproof, SBS is one of the layer, the thickness requirements for the 3mm, so 3mmSBS coil in the Ⅱ grade Ⅰ waterproof as a waterproof.s
Elastomer modified asphalt waterproofing membrane for what purpose? Need to pay attention to a few things?
- It is suitable for industrial protection such as roofing, basement, wall, bathroom, pool, drains, subways, caves, highways, bridges and airport runways, and is suitable for use in metal containers, Wide, excellent performance of the waterproof material, can be used as a single layer, but also layer; both hot melt construction, but also cold adhesive, glass fiber reinforced polyester felt coil can be used for mechanical fixed single layer of water, but need to Wind load test, fiberglass blanks for multi-layer waterproof bottom of the waterproof, exposed use of the upper surface of the insulating material for the opaque mineral particles of the waterproof membrane, underground engineering waterproof surface insulation material for the fine sand waterproofing membrane The Storage and transportations
Waterproof building materials after the construction of drums, bubble is what reason?
- Causes and prevention of drums:
Cause 1: If the membrane waterproof layer if the site is not solid, there is moisture, sunlight or artificial heat in the impact of the internal volume expansion, resulting in drums, the formation of the size of the bubble.
Preventive measures: leveling layer should be kept flat, clean, dry, grass-roots treatment agent should be brushing evenly, which is to prevent the drum from the main measures.
Raw materials in the transport and storage process, should pay attention to moisture and water. To avoid the rainy day, fog, big wind climate conditions under construction, to prevent grass-roots moisture.
When the roof base should not be dry, and anxious to paving the membrane, the use of exhaust roof approach (exposed single layer of waterproofing membrane should not be used).s
On the roof of the waterproofing membrane paving the direction of what are the requirements
- The purpose of the above provisions is to prevent the flow of membrane waterproof layer at the same time, as far as possible to reduce the coil waterproof layer of the joints to ensure that the integrity of the membrane waterproof layer, The probability of leakage of water. When the roof slope is less than 15% (ie, gentle slope roof), parallel roof ridge direction of the film has the following advantages: (1) a web can be paved in the end, reducing the joints, saving raw materials; (2) (4) to maximize the use of the longitudinal tensile strength of linoleum, in the long-term lap joints are perpendicular to the direction of the flow of the roof slope, so that the most difficult to leak; (4) to maximize the use of the longitudinal tensile strength of linoleum, in the To a certain extent, improve the membrane roof cracking resistance.s
The difference between high polymer modified asphalt waterproofing membrane and sbs
- SBS modified asphalt waterproofing membrane is SBS rubber modified petroleum asphalt cited as the invasion coating, polyester fiber non-woven fabrics, jute cloth, fiberglass mats were made for the fetal base, the plastic film for the anti-sticking isolation Layer, by the selection, ingredients, eutectic, invasion, composite molding, curling and other processes processing production.s
SBS Shale Waterproof Coil
- Classification: According to physical indicators are divided into: Ⅰ (-20 ℃), Ⅱ (-25 ℃) type two categories.s
It is good for black roof with waterproof paper
- No film or PE film (black surface) coil is generally not used for the roof; if the roof is often on the need to lay in the coil above the 5 cm thick cement mortar to do the protective layer or the choice of sand and shale surface waterproof Coil. Lough membrane (silver surface) The role of the membrane to play the radiation can be used directly for the roof without any protection.s
SBs waterproof cold sticky how to do?
- Waterproof membrane cold sticking method construction points:
1, grass-roots inspection, cleaning. Cold sticky paste, the grassroots must be clean, dry, moisture content in line with design requirements, or easy to cause paste is not strong and drums. Therefore, before the construction, the grass-roots surface of the protrusions should be eradicated, and dust debris and other completely clean.s
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