KR101201850B1 - Method for infrared heat reflective and waterproof of metal and asphalt shingle's roof - Google Patents

Abstract

PURPOSE: A thermal insulating and waterproofing method of metal and asphalt shingle roofs is provided to improve cooling and heating efficiency by decreasing the surface temperature of a roof of a building. CONSTITUTION: A thermal insulating and waterproofing method of metal and asphalt shingle roofs is as follows. Foreign materials and rust are removed from a metal surface layer(100). A treated layer(110) is formed by spreading a mold-inhibiting agent and a rust preventing agent on the removed portion of the metal surface layer. A repair and reinforcement layer(120) is formed by repairing crack, water leak, and protruded portions using a reinforcement agent. A primer coating layer(130) is formed by spreading primer on the repair and reinforcement layer. A thermal insulation and waterproof layer(140) is formed by spreading a thermal insulating and waterproofing material on the top of the primer coating layer.

Description

METHOD FOR INFRARED HEAT REFLECTIVE AND WATERPROOF OF METAL AND ASPHALT SHINGLE'S ROOF}

The present invention relates to a heat-resistant waterproof method, and more particularly, it is processed on metal roofs and asphalt shingles to realize solar reflection, radiation, and heat shielding, thereby saving energy and increasing durability by lowering the internal temperature of the building. The present invention relates to a heat shielding method for roofs of metal and asphalt shingles that have been improved to be used.

Recently, in the summer, the word blackout has been heard through the media. Electric power shortages are severe due to increased cooling costs in summer, and it is difficult to predict electricity consumption due to changes in external conditions such as abnormal weather caused by environmental destruction.

The root cause of this problem is the destruction of the environment due to the development of human civilization.

Environmental issues have become an important threat to the survival of humankind, and global low carbon green growth is being promoted.

As part of this, the building materials market is turning to eco-friendly materials and encouraging the construction of “Green Building” to control the carbon emissions of buildings, the main culprit of environmental destruction.

Korea has also spared no support for low carbon green growth by riding on this global trend.

As mentioned above, the main culprit of environmental destruction such as large carbon emissions and energy consumption is buildings. Therefore, what constitutes a building and how to manage it is the key to solving environmental problems.

Among the various environmental problems caused by buildings, the large amount of carbon emissions caused by large energy consumption is the biggest problem. In particular, the roof of the building is exposed to the worst environmental conditions of the building, absorbing the solar heat as it increases the indoor temperature of the building to increase the energy consumption used for cooling. This means an increase in carbon emissions and environmental degradation.

In addition, the roof of the building is a part that is difficult to solve the problem of leakage of rain in rain due to damage due to the various materials of the building is placed in a poor environment.

As a roofing material of such a building, various materials such as concrete, metal, asphalt shingle, roof tiles, and slate are used. To ensure the longevity and durability of buildings by ensuring the longevity and waterproofing of these materials, they must be able to control heat and moisture.

Many methods for waterproofing roofs have been introduced, but there have been limitations of waterproof life due to problems such as lack of water vapor permeability, decomposition of ultraviolet rays, and problems of materials that cannot cope with external environmental changes.

In order to solve this problem, efforts have been made to improve the composite waterproofing method and other materials complementarily using different materials, but the overall solution has not been suggested. In other words, there was a technical problem in solving the problems caused by heat and moisture at the same time.

For example, in the case of concrete roofs, there is a limit to securing water vapor permeability due to condensation in winter, causing neutralization of protection mortar, and in many cases, prolonged waterproofing performance has failed. Did not reveal the limitations of the material.

In addition, in the case of metal and asphalt shingles roof, exposed to a large amount of solar heat during the day time has been difficult to solve the problem due to the roof leak due to the failure to withstand the waterproof material applied.

As such, the biggest threat to building life and waterproof performance is related to solar heat in summer and water vapor permeability in winter.

In particular, regardless of the existing roofing material, the degradation of the waterproofing performance due to exposure to solar heat is a problem to be solved first to secure the waterproofing problem and durability of the building.

In addition, it must be able to contribute to energy saving that is emerging recently.

Recently, the concept of “shielding” has been introduced to reduce energy consumption due to the increase of room temperature through solar absorption and to secure waterproof performance for building management purposes.

In the past, building insulation was the key to energy saving, but nowadays, not only insulation but also thermal insulation is required.

Here, thermal insulation is a new concept that is distinguished from thermal insulation. If thermal insulation plays a passive role of thermal insulation, thermal insulation is an energy-saving concept in which the concept of thermal reflection is applied.

In other words, the heat insulation is to block the movement of heat, the heat shield is to reflect the heat.

As is well known, the sunlight consists of infrared rays, visible rays and ultraviolet rays. For example, the 300mm ~ 400mm area is the main activity of ultraviolet light sterilization effect and deterioration and decomposition of organic matter. And, the ray of 400 ~ 700mm area corresponds to the visible ray, which is the sunlight ray that our eyes can see. In addition, the area of 700 ~ 2500mm or more is called infrared rays as infrared rays, and it is invisible light rays and occupies 49% of the whole solar rays. Rays from objects that humans feel 'hot' are rays in this area. In addition, the near infrared rays belong to the 780 to 2100 nm region included in the sunlight, and unlike the infrared and visible rays, the near infrared rays are easily changed according to thermal energy. When near-infrared rays are absorbed by the target material, they are converted into thermal energy. The roof of the building contains the heat, which increases the room temperature.

On the other hand, the general paint absorbs all the infrared rays received from the sun and heats up the building, which makes the building hot. Especially, in summer, the surface of the iron plate roof rises to 60 ℃, in some cases up to 80 ℃, and the room temperature reaches around 45 ℃.

However, the use of thermal barrier paints is somewhat different depending on the structure, color and weather conditions of the roof, but the surface temperature of summer roof is 15 ~ 20 ℃ and the roof backside is about 15 ℃, so it is only 1 ~ 2 than the outside air temperature on the first floor. It has been found that buildings with high temperatures of 2,500 square meters can save electricity costs of 2.4 million to 5.5 million yen (Japan) per year through thermal barriers. In addition, the long life compared to the general paint has the advantage of saving maintenance costs in the long run.

In the summer, the temperature inside the building is the temperature of the roof surface, and the heat insulating material used for the roof of the building has a low thermal conductivity, which prevents external heat from being transferred to the interior. The reflections lower the temperature of the roof surface and the heat entering the building.

In addition, the thermal barrier paint has the functions of heat conduction prevention, long wave emissivity, solar radiation reflectance, and convective heat transfer.

In this case, the long-wave emissivity is a numerical value representing the heat transfer between the solid of the roof and the air, and the long-wave emissivity of the heat shielding paint effectively releases the heat of the heated roof to the atmosphere. Reduce. Incidentally, in the heat shielding coating, the solar reflectance has the most relation to the heat shielding property.

In general, the surface temperature of the metal material rises to about 60 ~ 80 ℃ in the summer, but because the roof painted with heat-shielding paint reflects the sun rays to lower the metal surface temperature to about 40 ℃.

Convective heat transfer is a coefficient determined by the wind speed, and since the heat conductivity is only taken into account in the simple heat load calculation, the roof surface temperature is not considered.

The actual difference in solar reflectance is largely affected by the internal heat load, and the heat shielding paint is a paint using a high solar reflectance, and when applied to a roof on which insulation is not constructed, a significant energy saving effect can be expected.

Currently, the coating film waterproofing method using heat shielding performance is used for waterproofing the roof of some buildings, but this is a concept that complements the heat shielding property of the existing waterproofing agent by applying a heat shielding coating on top of the existing urethane. That is, the waterproof and the heat shield are separated.

In addition, even though the urethane waterproofing agent has no water vapor permeability and supplements the heat shielding property, the urethane waterproofing agent has a limit in maintaining the waterproofing performance in the long term, which means that a continuous energy saving effect cannot be expected.

Therefore, it is necessary to improve the environmental conditions of the roof of the building through heat shielding to save energy and to ensure continuous waterproof performance.

The present invention was created to satisfy the necessity as described above, through the heat shielding function of heat reflection, heat radiation, heat shielding to realize the energy saving effect of the building, protect the performance of the waterproof coating to improve the durability of the building It is aimed to provide thermal insulation waterproofing method of building roof which can contribute to the increase of global utility by using eco-friendly materials.

In particular, it is an object of the present invention to provide a heat shielding method of the metal roof and asphalt shingle roof among the roof.

The present invention as a means for achieving the above object, in the heat shield waterproofing method of the roof having a metal surface layer; A surface foreign material removing step of removing a damaged part or a foreign substance including mold and rust formed on the metal surface layer; A prevention process for forming a prevention layer by applying a mold inhibitor to a mold generating part or a mold anticipated part from which foreign matter is removed, and applying a rust inhibitor on the surface layer including the rust-removed part; A pretreatment step comprising: a reinforcement process of forming a repair reinforcement layer by repairing cracks, leaks, curvature points, and protrusions with a reinforcing agent; A primer coating step of applying a primer to the pretreated reinforcing reinforcement layer to form a primer layer; Including a heat-resistant waterproofing agent to form a heat-resistant waterproofing layer by applying a heat-resistant waterproofing agent on top of the undercoat layer, wherein the fungicide, 1 to 14% by weight of the fourth ammonium, 1 to 3% by weight of phenol derivatives, and the remaining water Configured; The rust inhibitor is 10 to 30% by weight of linseed oil, 10 to 30% by weight of white oil, 1 to 10% by weight of naphthene distillate and heavy and degreasing solvent mixture, and the remaining fatty acid glycidyl ester, phthalic anhydride and oil resin mixture. Done; The reinforcing treatment agent, 20-30% by weight of acrylic copolymer, 15-30% by weight of titanium dioxide, 20-25% by weight of inorganic mixture, 2-4% by weight of propylene glycol, 0.1-1% by weight of liquefied anhydrous ammonia, and the remaining water Done; The primer is composed of 10-30% by weight of synthetic alkyd resin, 25% by weight or less of silicic anhydride, 10% by weight or less of fine iron oxide, 0.2% by weight or less of zinc phosphate, and the remaining liquid hydrocarbons; The heat-resistant waterproofing agent, 20 to 30% by weight of acrylic copolymer, 15 to 30% by weight of titanium dioxide, 20 to 25% by weight of inorganic mixture, 2 to 4% by weight of propylene glycol, 0.1 to 1% by weight of liquefied anhydrous ammonia It provides a heat shielding method of the building roof, characterized in that made.

At this time, in the pretreatment step, the reinforcing process is characterized in that the first coating of the reinforcing treatment agent with a first coat, and then attaching a reinforcing material, which is a polyester reinforcing fabric, and re-coating with the reinforcing treatment agent.

In addition, the present invention is a heat shielding method of the roof having an asphalt shingle surface layer; A surface foreign material removing step of removing a damaged part or foreign matter including a mold formed on the surface layer; A prevention treatment process of forming a prevention layer by applying a mold inhibitor to the mold generation site or the mold generation site where the foreign material is removed; A pretreatment step comprising: a reinforcement process of forming a repair reinforcement layer by repairing cracks, leaks, curvature points, and protrusions with a reinforcing agent; A primer coating step of applying a primer to the pretreated reinforcing reinforcement layer to form a primer layer; Including a heat-resistant waterproofing agent to form a heat-resistant waterproofing layer by applying a heat-resistant waterproofing agent on top of the undercoat layer; wherein the fungicide, 1 to 14% by weight of the fourth ammonium, 1 to 3% by weight of phenol derivatives, and the rest Consists of water; The reinforcing treatment agent, 20-30% by weight of acrylic copolymer, 15-30% by weight of titanium dioxide, 20-25% by weight of inorganic mixture, 2-4% by weight of propylene glycol, 0.1-1% by weight of liquefied anhydrous ammonia, and the rest Consisting of water; The lower coat agent is 38 to 45% by weight of acrylic rubber polymer, 35 to 42% by weight of titanium dioxide pigment, 8 to 16% by weight of propylene glycol, 1.0% by weight or less of ammonia and the rest of the first component consisting of an inorganic mixture; A second component consisting of a mixture of 5 to 10% by weight of a hydrophilic agent and a mixture of the remaining Portland cement and an anti-caking agent; The heat-resistant waterproofing agent, 20 to 30% by weight of acrylic copolymer, 15 to 30% by weight of titanium dioxide, 20 to 25% by weight of inorganic mixture, 2 to 4% by weight of propylene glycol, 0.1 to 1% by weight of liquefied anhydrous ammonia It also provides a heat shielding method of the building roof, characterized in that made.

In this case, the hydrophilic agent of the second component of the primer is one of upper glycerin, polyol, polyethylene glycol, polypropylene glycol; The anti-caking agent is also characterized in that it is one of magnesium silicate, sodium ferrocyanide, silicon dioxide, silicone polymer.

In addition, the primer is mixed until the mass disappears while adding the first component while mixing the second component first with a stirrer, and after additionally mixed again for 1 minute to prevent coagulation The final use also has its characteristics.

According to the present invention, by blocking the solar heat to lower the surface temperature of the roof of the building it can increase the energy efficiency of cooling, heating.

In addition, the urban heat island phenomenon, which is a social problem, can be alleviated by painting not only buildings but also asphalt and concrete pavements.

In addition, the heat shielding performance according to the present invention can prevent the coating material from absorbing solar heat and deteriorate, so that the performance of the coating material can be prolonged even with a thin thickness, and if the waterproofing performance is added, it ensures long-term waterproofing performance, building It can enhance the durability.

1 is an exemplary cross-sectional view showing a heat shield waterproof structure according to the present invention.
2 is an exemplary view showing a heat shield test example according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, embodiments in accordance with the concepts of the present invention may be modified in various ways and may have various forms, specific embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a particular disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.
In addition, the range of "-or less" is the addition amount except "0" in the part in which the addition amount is described with "-or less" in the component mentioned later. For example, the meaning of description that X component is 10 weight% or less is the concept of 0 <X <= 10.

1, the surface layer 100, the anti-treatment layer 110, the repair reinforcement layer 120, the undercoat layer 130 and the heat shield layer 140 are sequentially It is made of a laminated structure.

At this time, the anti-treatment layer 110 and the reinforcing reinforcement layer 120 is a layer generated in the pre-treatment step to be described later, the undercoat layer 130 is a layer generated in the coating step coating step described later, the heat-resistant waterproof layer 140 ) Is a layer produced in the thermal barrier coating step described later.

In addition, the anti-treatment layer 110 and the reinforcing reinforcement layer 120 may be sequentially configured or may be selectively configured, which is selected according to the type of the surface layer 100.

The heat shield waterproofing method constructed to have such a heat shield waterproof structure is as follows. However, since it may vary depending on the type of the surface layer 100 will be described for each embodiment.

[First Embodiment]

The heat shielding method according to the first embodiment of the present invention corresponds to a case where the roof is made of metal, that is, when the surface layer 100 is made of metal as shown in FIG. 1.

The heat shield waterproofing method according to the first embodiment of the present invention comprises a surface foreign matter removing step, a pretreatment step, a primer coating step, a heat shielding agent coating step.

At this time, the surface foreign material removal step is to remove the mold, rust, etc. formed on the existing matrix, that is, the metal surface layer 100, and also to remove the foreign material existing on the areas, hook bolts, damaged parts or surfaces that are expected to occur rust. Step.

Thereafter, a pretreatment step of forming the anti-treatment layer 110 and the repair reinforcement layer 120 is performed.

The pretreatment step includes a prevention treatment process of forming a prevention treatment layer 110 by applying a mold inhibitor to a mold generation site or a mold generation site where the foreign material is removed, and applying a rust inhibitor thereon for rust prevention; It is composed of a reinforcement treatment process for forming a repair reinforcement layer 120 by repairing and strengthening the anticipated curing leakage, that is, cracks, curvature points and protrusions.

That is, the pretreatment step is a step for cleaning, washing or preventing mold or rust from occurring on the surface in order to have the heat shield structure of the present invention.

At this time, the anti-treatment process refers to the anti-rust treatment to prevent mold or rust, to apply a mold inhibitor to prevent mold, and to prevent rust to apply a rust preventive agent.

In this case, the antifungal agent is 1 to 14% by weight of the quaternary ammonium compound, 1 to 3% by weight of the phenol derivative, and the remainder is composed of water.

Here, the quaternary ammonium (quaternary ammonium salt) is a kind of cationic surfactant in the form of a salt, a compound mainly used as a cleaning agent, used for plaque suppression and antibacterial effect, in the present invention is less than 1% by weight When added, the anti-fungal and antimicrobial effects sharply deteriorate, and if it exceeds 14% by weight, antifouling properties rapidly increase to weaken the binding of subsequent layers, so it should be added within the above range.

In addition, the phenol derivative is a cleaning agent that performs a kind of disinfection function, and in the present invention, in addition to the cleaning function, the phenol derivative is added to improve adhesion to subsequent coatings, that is, layers. To this end, it should be added in the range of 1-3% by weight, but if added in less than 1% by weight it is difficult to expect the cleaning effect, if it exceeds 3% by weight should be limited to the above range because of the risk of concern.

Such an antifungal agent suppresses the development and growth of the mold on the surface of the lower surface and exerts a long-term effect from the inside of the new coating film. It is also easy to handle and clean after working with an aqueous system.

In addition, rust inhibitors 10-30% by weight of linseed oil, 10-30% by weight of white spirit, naphthenic distillate and a mixture of naphthenic distillate, heavy, solvent-dewaxed 1 10% by weight and the remaining fatty acid glycidyl esters and a mixture of phthalic anhydride and oil resins.

At this time, linseed oil is an oil woven from flax seeds, mainly used as a raw material of the paint, and usually manufactured and sold for industrial use, the present invention includes a coloring function.

In addition, white oil is mainly used to lead to white gasoline, kerosene, and light oil among petroleum compounds, and is added to remove the cause of rust by resisting oxygen and moisture with emulsification. If it is added in less than 10% by weight, the coloring and emulsification function is lowered, and if it exceeds 30% by weight, the mixing property is sharply lowered and should be limited to the above range.

In addition, naphthenic distillate, heavy, degreasing solvent mixture is used as a kind of solvent to dissolve the resin mixture, such as fatty acid glycidyl ester, phthalic anhydride, oil resin, etc., in the present invention used in the range of 1-10% by weight Should be.

In particular, fatty acid glycidyl esters impart flexibility to the layer.

As such, the rust inhibitor prevents oil from penetrating the steel surface according to scientific principles to prevent the cause of the original rust.

In addition, the compound is well balanced composition with oxygen and moisture resistance penetrates inside to block moisture and encapsulate rust.

And, when dried, it is hard and tightly sealed, so it adheres directly to the metal surface.

Therefore, it is suitable for the repair work of the metal structure, that is, the surface layer 100 is a metal and has a function to compensate for the disadvantages of the outstanding metal surface.

Therefore, it is expected to increase not only the rust treatment of the existing surface but also the original life, and is a composition specially designed for use on the corroded metal surface of the metal.

However, since the compound does not have stability against UV rays, a finish that can withstand UV rays should be applied after treatment.

On the other hand, the reinforcement process is a process of reinforcing the cracking site and the anticipated leakage by using a reinforcing agent and 100% polyester reinforced fabric as a reinforcement material.

At this time, the reinforcing agent is 20-30% by weight acrylic copolymer (Acrylic copolymer), 15-30% by weight titanium dioxide, 20-25% by weight inorganic filler (propylene glycol) 2 4 wt%, 0.1-1 wt% of ammonia anhydrous liquefied, and the balance consists of water.

Here, the acrylic copolymer has a tackiness as a basic component constituting the paint, but if it is added less than 20% by weight, the adhesive is inferior and if it exceeds 30% by weight, the viscosity is strong and difficult to apply should be added in the above range.

In addition, the titanium dioxide is used as a pigment and is added in an equivalent category to the acrylic copolymer, preferably 15-30% by weight.

In addition, the inorganic mixture, as an inorganic filler, supplements the adhesiveness of the acrylic copolymer, is added to ensure the stability of the coating, and the most preferred is powder, may be talc, calcium carbonate, silica, alumina, etc. as necessary. In this invention, it is added in 20-25 weight% smaller than an acryl copolymer.

In addition, the propylene glycol is hygroscopic but not volatile and stable to heat and light, but as a flammable material, it is used as a solvent for dissolving pigments, essential oils and resins in water, and acting as a softening agent for preservatives and preventing mold and mold growth. It is not fermented. In the present invention, the anti-fungal agent is added in an amount of 2-4% by weight so that it can be supplemented in the upper layer, but if it is added in an amount of less than 2% by weight, it is ineffective, and if it exceeds 4% by weight, the flammability is high and should be added in the above range. .

In addition, the liquefied anhydrous ammonia is a colorless transparent liquid having properties similar to water, and is mainly used as a solvent, and a small amount is added in the present invention.

In the reinforcement treatment process using the reinforcing agent, first, the reinforcing treatment agent is first applied with a first coat, and then the reinforcing material, which is a polyester reinforcing fabric, is attached, and then repainted with the reinforcing agent.

At this time, the reinforcing treatment agent is easy to waterproof because it is based on the acrylic copolymer.

In particular, since the reinforcing treatment agent is composed of a combination of titanium dioxide and a large amount of the resin, it ensures excellent adhesion, has a water resistance, durability, excellent adhesion.

In addition, it is excellent as a medium coating that can secure the adhesion to the upper layer by the initial coating of waterproof, and during the curing period, the film is sticky and needs to apply the final finishing material, which can minimize the risk of peeling the coating due to sticky.

In addition, the curvature point is preferably a polyurethane-based sealant, and in particular, a one-component polyurethane sealant is preferable, which is a simple, easy-to-use and adhesive compound that reacts very quickly to atmospheric humidity and hardens the hardened sealant. It is very elastic like rubber and can be painted on top.

In addition, it has the properties of resistance to chemicals, hydrolysis, aging, has the property of not flowing, there is no stain and does not emulsify it can be used immediately without mixing and provides good adhesion to most lower extremities.

In this way, when the pretreatment step is completed, the primer coating step for forming the undercoat layer 130 is performed.

The primer coating step is to be applied to the top of the reinforcing reinforcing layer 120, when the roof, that is, the surface layer 100 is a metal, because there is no pore in the material itself, it is necessary to increase the adhesive strength of the material, so be careful when preparing the primer This is something to pay attention to.

The primer is to be used in the coating step, the synthetic alkyd resin (Synthetic Alkyd. Resin) 10 to 30% by weight, silica anhydride (Silica) 25% by weight, particulate iron oxide (iron oxide) 10% by weight, zinc phosphate ( zinc phosphate) up to 0.2% by weight and the rest of the liquid hydrocarbons.

Here, the alkyd resin refers to a modified polyester, and is a resin obtained by condensation of a polybasic acid such as phthalic anhydride with a polyhydric alcohol such as glycerin, and modified with an oil or fatty acid. In the present invention, it should be added in the range of 10-30% by weight in consideration of gloss and pigment dispersibility.

In addition, the silicic acid anhydride refers to silica, and is mainly used as a raw material of glass and added for drying. Therefore, it should not exceed 25 wt% at maximum.

In addition, the fine iron oxide is a pigment, the synthetic alkyd resin is responsible for the heat shielding effect and anti-rust function, and the composition and the metal base that requires high corrosion resistance and a film that needs to adhere well to secure adhesion with subsequent coating materials It is configured for use in parts. In addition, it is preferred to be composed of a concentrate in order to make up for the long term storage by complementing the disadvantages of the rigidity of the anti-rust pigments, and therefore, in the present invention, it should be added less than 10% by weight.

In addition, the zinc phosphate is added in order to improve the corrosion resistance, and if it exceeds 0.2% by weight, the film formation is strong, so it is good for improving the corrosion resistance, but the lamination properties with the heat-resistant waterproof layer 140 applied thereon is reduced in the above range It should be added below.

In addition, the liquid hydrocarbon is a mineral oil, CM-n isoparaffin, isohexadecane and the like, and excellent solubility of solid content and cooling function is added to the rest in the present invention to reinforce the heat shield function.

Undercoat of the composition as described above is excellent in adhesive strength and film retaining power, and thus has considerable durability compared to general metal surface primers.

Moreover, zinc phosphate, a cathodic protective component, prevents rust from reacting with oxygen in the air which chemically forms rust.

In addition, the ultrafine next-generation solid material is added to the raw material to exhibit excellent workability and dry quickly. In particular, its low solvent content has excellent fluidity and leveling characteristics, and it is very adherent to exposed iron and galvanized sheets, and it can achieve high solar reflection effect even in dark colors and excellent adhesion with acrylic paints. do.

Moreover, it responds well to the corrosion of the lower extremity exposed to the extreme weather environment and protects the lower surface for a long time, and 10 ~ 40% diluent is applied to the wet membrane which is decided at the stage where rust protection is necessary for spray application. Can be.

After the application of the primer coating step is carried out, and finally the heat-resistant waterproofing agent is applied.

The heat-resistant waterproofing agent coating step is to form a heat-resistant waterproof layer 140 to constitute the top layer of the coating film, the heat-resistant waterproofing agent 20 to 30% by weight acrylic copolymer (Acrylic copolymer), 15-30 weight of titanium dioxide (pigment) %, Inorganic filler 20-25% by weight, propylene glycol 2-4% by weight, ammonia anhydrous liquefied 0.1-1% by weight, the remainder is water.

At this time, the heat shield is excellent in resistance to water to provide a uniform waterproof film made on the original base, the characteristics and functions of the compositions are as described above.

However, the inorganic mixture should be composed of nanoceramic particles, mica powder or mixtures thereof in order to secure heat shielding properties unlike the reinforcing treatment agent described above.

In addition, it has a heat shielding effect that can reflect more than 50% of thermal infrared rays even in dark colors, has 640% elasticity, and can cope with the contraction and expansion of the concrete surface that is deformed according to the season. It is safe to apply because it has little smell and is not harmful to human body, and it has a fast drying time.

In addition, since the acrylic resin that can replace the function of the plasticizer is used, the elasticity does not drop over time, and unlike other silicones used for waterproofing, it prevents moisture from entering the coating film, so it does not expand and other acrylic More durable than the material.

Furthermore, in the heat shielding paint thus far, only the white heat shielding effect was obtained, but the heat shielding waterproofing agent according to the present invention can obtain the heat shielding effect in other colors.

In addition, it maintains its inherent flexibility without freezing at extreme low temperatures of minus (-20 ° C), and passed 3,000 hours in initial weathering test.

[Second Embodiment]

Heat shielding method according to the second embodiment of the present invention corresponds to the case where the roof is asphalt shingle.

Heat shielding method according to the second embodiment of the present invention also comprises a surface foreign matter removal step, pretreatment step, primer coating step, heat shielding agent coating step as in the first embodiment described above.

However, in the second embodiment of the present invention, unlike the first embodiment, since the surface layer 100 is not a metal in the pretreatment step, it is not necessary to perform a rust prevention treatment, and because the surface layer 100 is asphalt shingle, The only difference is the difference.

Therefore, the description of the second embodiment of the present invention will be sufficient if only the composition of the changed primer is described.

In the case of an asphalt shingle roof, the undercoating agent according to the second embodiment of the present invention may fix 38 to 45% by weight of acrylic rubber polymer and 35 to 42 weight of titanium dioxide, which is a pigment, to fix the tar residue generated after the existing asphalt construction. %, Propylene glycol (8-16% by weight), ammonia (ammonia) 1.0% by weight or less and the remainder of the first component consisting of an inorganic filler (inorganic filler); Hydrophilic agent (Hydrophobic agent) 5-10% by weight, the second component consisting of a mixture of the remaining Portland cement and the anti-caking agent (Silica anti-caking agent); Is done.

Here, the characteristics and limitations for most of the components are not described because described in the first embodiment described above, the hydrophilic agent constituting the second component is a kind of surfactant, preferably upper glycerin, polyol , Polyethylene glycol, polypropylene glycol and the like may be used, and when added in less than 5% by weight is not hydrophilic, the solidification time is excessively longer while exceeding 10% by weight should be limited to the above range.

In addition, the anti-caking agent is to relieve the hydraulic properties of Portland cement, magnesium silicate, sodium ferro cyanide, silicon dioxide, silicon polymer, and the like can be used.

At this time, the mixing method is preferred to mix the first component little by little while mixing the second component first with a stirrer, which is sufficiently mixed and left until no lumps and left for one minute to prevent coagulation Additional remixing is required before final use.

In addition, the first component of the primer composition is a hydrophobic waterproofing sealant and provides a reliable waterproofing seal such as a stone surface. Therefore, it can be easily applied in any field environment by mixing it with silica (silicon) composed of ultra fine particles, cement and polyester reinforcement, and when dried, it has excellent drying shrinkage and creates a flexible waterproof film, which has excellent adhesion to the dried surface. Seems.

In addition, it has a low temperature flexibility and resistance to moisture that can withstand extreme low temperatures (-8 ° C), which preserves it for a long time, and the cured film adheres well to the lower extremity to provide a thin film for subsequent application. do.

In addition, it provides excellent long-term resistance mainly to cracking and weathering, and has the great advantage of maintaining flexibility over time. In addition, it has excellent long-term resistance to cracking and visible whitening.

In addition, it is dried in the same manner as mortar, but is not made of the final finishing paint, so it is necessary to apply the final finishing material, and it can be directly applied to asphalt waterproofing and asphalt shingle that could not be constructed in the waterproofing system so far.

Hereinafter, an experimental example is described.

[Experimental Example]

In order to confirm the heat shielding properties of the heat shield according to the present invention, FIG. 2 (a) of the heat shielding agent 20 of the present invention is applied to the gray steel sheet 10, and FIG. 2 of the general acrylic paint 20 '. (b) was tested under the same conditions.

For the measurement, the steel plate 10 was placed in the sealed housing 40, and then the light source 50 was installed in the upper part to irradiate light, and the temperature was measured by the temperature measuring module 30 in the lower part.

At this time, the undercoat of the steel plate 10 was applied to the same thickness using the same primer, the irradiation time of light through the light source 50 was applied equally to 15 minutes.

As a result of the measurement, the steel plate 10 provided with the heat shielding agent 20 of this invention rose to 58.5 degreeC, but the steel plate 10 provided with the general acrylic paint 20 'rose to 79.2 degreeC.

Through this, it was confirmed that the heat shielding paint of the present invention rises by 20.7 ° C. less than the general acrylic paint, and confirmed that the heat shielding effect is sufficient.

Therefore, it is expected that the above object of the present invention can be sufficiently achieved.

10: steel sheet 20: heat shield
20 ': General acrylic paint 30: Temperature measuring module
40 housing 50 light source
100: surface layer 110: prevention layer
120: repair reinforcement layer 130: undercoat
140: heat shield layer

Claims (5)

In the heat shield waterproofing method of the roof which has a metal surface layer;
A surface foreign material removing step of removing a damaged part or a foreign substance including mold and rust formed on the metal surface layer; A prevention process for forming a prevention layer by applying a mold inhibitor to a mold generating part or a mold anticipated part from which foreign matter is removed, and applying a rust inhibitor on the surface layer including the rust-removed part; A pretreatment step comprising: a reinforcement process of forming a repair reinforcement layer by repairing cracks, leaks, curvature points, and protrusions with a reinforcing agent; A primer coating step of applying a primer to the pretreated reinforcing reinforcement layer to form a primer layer; Including; a heat-resistant waterproofing agent coating step of forming a heat-resistant waterproofing layer by applying a heat-resistant waterproofing agent on top of the undercoat layer;
The antifungal agent, 1 to 14% by weight of the quaternary ammonium, 1 to 3% by weight of the phenol derivative, and the remainder are composed of water;
The rust inhibitor is 10 to 30% by weight of linseed oil, 10 to 30% by weight of white oil, 1 to 10% by weight of the naphthene distillate and heavy and degreasing solvent mixture and the rest of the fatty acid glycidyl ester and phthalic anhydride and oil resin mixture Consisting of;
The reinforcing treatment agent is 20 to 30% by weight of acrylic copolymer, 15 to 30% by weight of titanium dioxide, 20 to 25% by weight of stone powder, 2 to 4% by weight of propylene glycol, 0.1 to 1% by weight of liquefied anhydride, and the rest with water. Done;
The primer is 10 to 30% by weight of synthetic alkyd resin, 25% by weight or less of silicic anhydride (excluding 0), 10% by weight or less of fine iron oxide (except 0), 0.2% by weight or less of zinc phosphate (excluding 0), And the rest consists of liquid hydrocarbons;
The heat-resistant waterproofing agent is 20 to 30% by weight acrylic copolymer, 15 to 30% by weight titanium dioxide, 20 to 25% by weight nanoceramic particles or mica powder, 2 to 4% by weight propylene glycol, 0.1 to 1% by weight liquefied anhydrous ammonia Heat shielding method of the building roof, characterized in that the remainder is made of water.
The method according to claim 1;
In the pretreatment step, the reinforcement process is heat-resistant waterproof roof of the building characterized in that the first coating the reinforcing treatment agent with a primary coating, then attach the reinforcement material of the polyester reinforcing fabric, and then re-coated with the reinforcing treatment agent. Method.
In the heat shield waterproofing method of a roof having an asphalt shingle surface layer;
A surface foreign material removing step of removing a damaged part or foreign matter including a mold formed on the surface layer; A prevention treatment process of forming a prevention layer by applying a mold inhibitor to the mold generation site or the mold generation site where the foreign material is removed; A pretreatment step comprising: a reinforcement process of forming a repair reinforcement layer by repairing cracks, leaks, curvature points, and protrusions with a reinforcing agent; A primer coating step of applying a primer to the pretreated reinforcing reinforcement layer to form a primer layer; Including; a heat-resistant waterproofing agent coating step of forming a heat-resistant waterproofing layer by applying a heat-resistant waterproofing agent on top of the undercoat layer;
The antifungal agent, 1 to 14% by weight of the quaternary ammonium, 1 to 3% by weight of the phenol derivative, and the remainder are composed of water;
The reinforcing treatment agent is 20 to 30% by weight of acrylic copolymer, 15 to 30% by weight of titanium dioxide, 20 to 25% by weight of stone powder, 2 to 4% by weight of propylene glycol, 0.1 to 1% by weight of liquefied anhydride, and the rest with water. Done;
The lower coat agent is 38 to 45% by weight of acrylic rubber polymer, 35 to 42% by weight of titanium dioxide pigment, 8 to 16% by weight of propylene glycol, 1.0% by weight or less (excluding 0) and the remainder of the inorganic mixture 1 component; Hydrophilic agent 5 to 10% by weight, the remainder is a second component consisting of a mixture of Portland cement and the anti-caking agent; is made by mixing in a weight ratio of 1: 1;
The heat-resistant waterproofing agent is 20 to 30% by weight acrylic copolymer, 15 to 30% by weight titanium dioxide, 20 to 25% by weight nanoceramic particles or mica powder, 2 to 4% by weight propylene glycol, 0.1 to 1% by weight liquefied anhydrous ammonia Heat shielding method of the building roof, characterized in that the remainder is made of water.
The method according to claim 3;
The hydrophilic agent of the second component of the primer is one of upper glycerin, polyol, polyethylene glycol, polypropylene glycol; The anti-corrosive agent heat shielding waterproofing method of the building roof, characterized in that one of magnesium silicate, sodium ferrocyanide, silicon dioxide, silicon polymer.
The method according to claim 3;
While the second primer is first mixed with the stirrer, the first component is added until the mass disappears while the first component is added, and the mixture is left for an additional remixing for one minute to prevent coagulation and then finally used. The heat shield waterproofing method of the building roof characterized by the above-mentioned.

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