KR101907915B1 - Reinforcement structure and method for roof top of building structure - Google Patents

Abstract

A reinforcement structure and a method for a rooftop of a building structure are disclosed. The reinforcement structure for the rooftop according to one embodiment of the present invention includes: a primer layer; a first waterproof layer applied on the primer layer; a hygroscopic layer applied on the first waterproof layer; a second waterproof layer applied on the hygroscopic layer; and a heat insulating coating layer applied on the second waterproof layer; and a short fiber bonding layer applied on the heat insulating coating layer, wherein the first waterproof layer and the second waterproof layer are connected to each other through a cross-linked sheet, and the heat insulating coating layer includes synthetic fiber yarn coated with a hollow pipe-type water-repellent coating material, wherein a short fiber bonding layer has a form, in which a short fiber bonded body in which webs formed of three types of short fibers are bonded to each other, is integrated with a thermosetting adhesive resin.

Description

TECHNICAL FIELD [0001] The present invention relates to a rooftop reinforcing structure and a roof structure of a building,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rooftop reinforced structure and method, and more particularly, to a rooftop reinforced structure and a construction method.

Building structures are generally made of concrete, mortar, or other materials. Such an inorganic material may cause cracking due to hydration heat due to cement hydration reaction, or internal or external environmental factors. Cracks in building structures cause leakage and condensation, shortening the life of building structures. Accordingly, there are many cases where waterproofing is performed to prevent or repair cracks on the outer wall of a building structure.

Waterproof construction can be roughly divided into coating system, sheet system, complex system, and so on. The coating formula is to use various waterproofing agents for the coating film, and the sheet type is to use a waterproof sheet. The composite type is a combination of a coating type and a sheet type. In recent years, there is a great demand for complex waterproof construction which can simplify waterproof construction and reduce construction period.

Coating type waterproofing construction is relatively easy to install in a narrow or complex area. In addition, seamless construction is possible and maintenance is relatively easy. However, there is a disadvantage that it is difficult to uniformly maintain the thickness of the coating film depending on the floor condition or the work site. The sheet-type waterproofing construction has a great advantage in that the construction is simple and the labor cost can be reduced, but the construction of the complex part is difficult and the partial repair is difficult. In addition, the sheet type waterproofing construction has a problem that the watertightness at the seam between seats is deteriorated. Recently, complex waterproofing construction is widely used.

In addition, since the roof of the building is heated to a higher temperature than the side wall, and the heat of the heated room is leaked out to the outside through the roof in winter, the roof is required to have a higher degree of heat insulation than the other walls. Therefore, research and development on structure and method for improving the waterproof performance and insulation performance on the roof of the building structure are continuously carried out.

Patent Document 1: Korean Patent No. 10-1255993 (Registered on April 12, 2013)

The present invention provides a rooftop reinforcement structure and a construction method of an architectural structure with improved waterproof performance and heat insulation performance.

According to an aspect of the present invention, there is provided a semiconductor device comprising: a primer layer; A first waterproof layer applied on the primer layer; A hygroscopic layer applied on the first waterproof layer; A second waterproof layer applied on the moisture absorption layer; A heat insulating coating layer applied on the second waterproof layer; And a short fiber bonding layer formed on the second waterproof layer, wherein the first waterproof layer is formed by joining a plurality of sheets in a horizontal direction, a first insertion groove is formed on both sides of each sheet, And a first connecting sheet formed in a cross shape by connecting the first insertion grooves and having both side portions inserted into the first insertion groove to fill up the spacing spaces of the respective sheets by the upper and lower portions, The second insertion grooves are formed on both sides of each sheet and the second insertion grooves of the two sheets are connected to form a cross shape so that both side portions are inserted into the second insertion groove, Wherein the heat insulating coating layer is formed into a hollow pipe shape and has a diameter of 2 to 4 mm and an average fiber length of 2 to 10 mm, Wherein the short fiber bonding layer comprises a web formed of a first staple fiber that is a polyester fiber, a web formed by a second staple fiber that is a glass fiber, and a third staple fiber that is a carbon fiber Wherein the surface-joined short-fiber bonded body with which the formed webs are mutually bonded is integrated with a sheet body formed of a thermosetting adhesive resin, the content of the glass fiber is smaller than the content of the polyester fiber based on the total weight of the short- A rooftop reinforced structure of an architectural structure in which the content of fibers is smaller than the content of glass fibers can be provided.

According to another aspect of the present invention, there is provided a method of manufacturing a semiconductor device, the method comprising: removing a rooftop material and constructing a primer layer; A plurality of first sheets having a first insertion groove formed on both sides thereof with a predetermined standard are arranged on the primer layer at predetermined intervals and both side portions of the first connection sheet formed in a cross shape are coupled to adjacent first insertion grooves, Joining the first sheets to construct a first waterproofing layer; Applying a moisture absorption layer on the first waterproof layer; A plurality of second sheets having a predetermined size and having second insertion grooves formed on both sides thereof are arranged on the hygroscopic layer at predetermined intervals and both side portions of the second connection sheet formed in a cross shape are coupled to the adjacent second insertion grooves, Joining the second sheets to construct a second waterproofing layer; Applying a heat insulating coating layer formed on the second waterproof layer to a hollow pipe shape and having a diameter of 2 to 4 mm and an average fiber length of 2 to 10 mm with a synthetic fiber yarn having a water repellent coating on the surface thereof; And a heat-insulating coating film layer, a web formed of a first staple fiber which is a polyester fiber, a web formed by a second staple fiber which is a glass fiber, and a web formed by a third staple fiber which is a carbon fiber, Wherein the content of the glass fiber is smaller than the content of the polyester fiber and the content of the carbon fiber is less than the content of the glass fiber based on the total weight of the single fiber aggregate, A method of constructing a rooftop reinforced structure of an architectural structure including a step of constructing a joining layer can be provided.

In the rooftop reinforced structure according to embodiments of the present invention, the first groove portion is formed on the upper surface of the first waterproof layer, the second groove portion is formed on the lower surface of the second waterproof layer formed on the first waterproof layer, By arranging the two grooves to be staggered, the moisture of the waterproof layers can be efficiently dispersed.

Further, moisture from the waterproof layer can be effectively removed through the moisture-absorbing layer between the waterproof layers.

Further, the first connecting sheet for connecting the plurality of first sheets and the second connecting sheet for connecting the plurality of second sheets are easily combined to easily join the first sheet or the second sheet in the horizontal direction to form the first water- The second waterproof layer can be easily formed.

Further, the first connecting sheet and the second connecting sheet make the joints of the respective sheets more complicated, so that the watertightness at the sheet joint can be improved.

Further, a heat insulating coating layer containing a synthetic fiber yarn formed into a hollow pipe shape and made into a water repellent coating is used, and a polyester short fiber, a glass fiber short fiber, and a carbon fiber short fiber are formed on the heat insulating coating layer As a result of improving the heat insulation property of the rooftop reinforced structure by installing the short fiber bonding layer, it is possible to improve not only the waterproof performance but also the heat insulation performance.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic cross-sectional view of a roof reinforcing structure of a building according to an embodiment of the present invention; FIG.
2 is a flowchart of a method of constructing a rooftop reinforced structure of a building according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the following description is illustrative of the present invention, and the technical spirit of the present invention is not limited to the following description. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In addition, thickness, size, etc. of each member in the drawings may be exaggerated, omitted, or schematically shown for convenience of explanation.

In the description of the structure of the present invention described herein, the positional relationship or direction is based on the drawings attached hereto unless otherwise stated.

In the description of the structure of the present invention described in the present specification, the description of the space and the description of the positional relationship mean the relative positions between the elements constituting the present invention. Also, unless otherwise stated, there may be other components in the space between one component and another. For example, when reference is made herein to the presence of "on top" or "on top" of one component, it is to be understood that not only is there a case where another component is located directly on top of one component, Until the element and another element are located between the other elements.

1 is a schematic view showing a cross section of a rooftop reinforced structure 100 of a building according to an embodiment of the present invention.

Referring to FIG. 1, a rooftop reinforced structure 100 of a building structure includes a primer layer 110, a first waterproof layer 120, a moisture absorption layer 130, a second waterproof layer 140, (150), a short fiber bonding layer (160), and a finish layer (170).

1, the rooftop waterproof structure 100 includes a primer layer 110, a first waterproof layer 120, a moisture absorption layer 130, a second waterproof layer 140, The bonding layer 150, and the finish layer 160 may be sequentially stacked.

In one embodiment, the primer layer 110 may use a water-soluble acrylic resin-based primer having a concentration of approximately 30 to 40% by weight.

The first waterproof layer 120 is formed on the primer layer 110. The first waterproof layer 120 is formed by horizontally joining a plurality of sheets. Each of the plurality of sheets constituting the first waterproof layer 120 is hereinafter referred to as a first sheet. The first sheet is a waterproof sheet. In one embodiment, the first sheet comprises, on a fiber substrate having a microporous structure having a thickness of a few tens of millimeters, from 80 to 120 parts by weight of polyvinyl chloride, from 50 to 60 parts by weight of a styrene block copolymer, 20 to 30 parts by weight of calcium carbonate, 30 to 50 parts by weight of calcium carbonate, 10 to 15 parts by weight of glass bubbles, 3 to 7 parts by weight of antimony trioxide and 5 to 10 parts by weight of talc are impregnated. The processing of the first sheet will be described. A protrusion 121 of a random pattern is formed on the lower surface of the first sheet. The protrusion 121 functions to improve adhesion with the primer layer 110. The first sheet has a first groove portion 122 of a lattice structure on its upper surface. The first groove portion 122 functions to disperse the moisture from the moisture removing means of the first waterproof layer 120 to the first waterproof layer 120. The first trench 122 may be formed to have a width and a depth of several mm. On both sides of the first sheet, a first insertion groove 123 is formed. The first insertion groove 123 serves to connect the adjoining first sheet, and reinforces the joint of the first sheet to enhance watertightness. The first insertion grooves 123 are formed in the form of being drawn inward at both side portions of the first sheet at a depth of several tens mm.

One first sheet and another adjacent first sheet can be joined side by side through the first connecting sheet 124. The first connecting sheet 124 is formed in a cross shape and both side portions are inserted into the first insertion grooves 123 of the first sheet and the upper and lower portions are formed to fill the space between the two first sheets. The first connection sheet 124 may be formed of the same or similar material as the first sheet and may be post-processed in the above-mentioned cross shape. A plurality of first sheets may be formed in a horizontal direction by the first connection sheet 124 so that the seams of the plurality of first sheets can be tightened by the first connection sheet 124 . This is because the joint is not merely a straight line in the vertical direction but a combination of the horizontal direction and the vertical direction along the outline (outer outline) of the first connection sheet 124. The first waterproofing layer 120 may be formed by joining the first sheets in the horizontal direction through the first connection sheet 124. In this case, the joints of the first connection sheet 124 and the first sheet are reinforced A tape (which may be, for example, a reinforcing tape of thermoplastic polyurethane material) may be additionally attached.

1, the first connection seat 124 is formed with a first connection portion 123 so that the ends of both sides of the first connection sheet 124 can be separated from the end portion of the first insertion groove 123 of the first seat by a predetermined distance, The length of both side portions of the sheet 124 may be formed to be a predetermined short length. In this case, the first connection sheet 124 flexibly connects the first sheets, so that the responsiveness to the expansion / contraction of the first sheets can be enhanced.

The moisture absorption layer (130) is formed on the first waterproof layer (120). The moisture absorption layer 130 functions to absorb moisture or moisture generated in the first waterproof layer 120 and the second waterproof layer 140. The moisture absorption layer 130 may be formed of a fiber material having a porous fiber structure and absorbing moisture, and for example, a fiberglass cloth, a polyethylene short fiber nonwoven fabric, a urethane resin sheet, or the like can be used.

The second waterproof layer 140 is formed on the moisture absorption layer 130. The second waterproof layer 140 is formed by horizontally joining a plurality of sheets. Each of the plurality of sheets constituting the second waterproof layer 140 will be referred to as a second sheet. The second sheet is a waterproof sheet like the first sheet. In one embodiment, the second sheet comprises a fiber substrate having a microporous structure having a thickness of a few tens of millimeters, comprising 80 to 120 parts by weight of polyvinyl chloride, 50 to 60 parts by weight of a styrene block copolymer, 20 to 30 parts by weight of calcium carbonate, 30 to 50 parts by weight of calcium carbonate, 10 to 15 parts by weight of glass bubbles, 3 to 7 parts by weight of antimony trioxide and 5 to 10 parts by weight of talc are impregnated. Describing the processing mode of the second sheet, the second sheet has a second groove portion 141 having a lattice structure on the lower surface. The second groove portion 141 functions to disperse the moisture from the moisture removing means of the second waterproof layer 140 to the second waterproof layer 140. The second trench 141 may be formed to have a width and a depth of several millimeters. 1, when the second waterproof layer 140 is formed on the moisture absorption layer 130, the second groove part 141 is disposed to be offset from the first groove part 122 of the first waterproof layer 120. That is, the main flow path of the moisture discharged through the first groove portion 122 is different from the main flow path of the moisture discharged through the second groove portion 141. On both sides of the second sheet, a second insertion groove 142 is formed. The second insertion groove 142 serves to connect the adjacent second sheet and reinforces the joint of the second sheet to enhance watertightness. The second insertion groove 142 is formed in the form of being drawn inward at both side portions of the second sheet at a depth of several tens mm.

One second sheet and the other adjacent second sheet can be joined side by side through the second connecting sheet 143. [ The second connection sheet 143 is formed in a cross shape and both side portions are inserted into the second insertion groove 142 of the second sheet and the upper and lower portions are formed to fill the space between the two second sheets. The second connection sheet 143 may have the same or similar shape as the first connection sheet 124 described above. That is, the second connection sheet 143 may be formed of the same or similar material as the second sheet and may be post-processed in the above-mentioned cross shape. The plurality of second sheets can be formed by being joined in the horizontal direction by the second connection sheet 143 so that the seams of the plurality of second sheets can be tightened by the second connection sheet 143 . This is because the joint is not merely a straight line in the vertical direction but a combination of the horizontal direction and the vertical direction along the contour (outer contour) of the second connection sheet 143. As such, the second sheets 140 may be formed in the horizontal direction through the second connection sheet 143 to form the second waterproof layer 140. At this time, the seams of the second connection sheet 143 and the second sheet are reinforced A tape (which may be, for example, a reinforcing tape of thermoplastic polyurethane material) may be additionally attached.

On the other hand, in one embodiment, unlike the one shown in FIG. 1, the end portions of the opposite sides of the second connection sheet 143 are spaced apart from the end of the second insertion groove 142 of the second seat by a predetermined distance 2 connecting sheet 143 may be formed to have a predetermined length. In this case, since the second connection sheet 143 flexibly connects the second sheets, the responsiveness to the expansion / contraction of the second sheets can be enhanced.

The laminated structure of the first waterproof layer 120, the moisture absorption layer 130 and the second waterproof layer 140 is as follows. First, the structure of the waterproof layer is a first groove portion 122 on the upper surface of the first waterproof layer 120 The second groove part 141 is formed on the lower surface of the second waterproof layer 140 formed on the first waterproof layer 120 and the first groove part 122 and the second groove part 141 are arranged to be staggered, It is possible to efficiently disperse the moisture of the first and second electrodes 120 and 140. Further, moisture from the waterproof layer can be effectively removed through the moisture absorption layer 130 between the waterproof layers. Second, since the first connecting sheet 124 connecting the plurality of first sheets and the second connecting sheet 143 connecting the plurality of second sheets are provided, the first sheet or the second sheet can be easily The first waterproof layer 120 or the second waterproof layer 140 can be easily formed. Further, the first connection sheet 124 and the second connection sheet 143 make the joints of the respective sheets more complicated, so that the watertightness at the sheet joint can be improved.

The heat insulating coating layer (150) is formed on the second waterproof layer (140). In one embodiment, the thermal barrier coating layer 150 comprises 40 to 50 parts by weight of methylene diphenyl diisocyanate; 50 to 60 parts by weight of a polyester polyol, 15 to 20 parts by weight of a synthetic fiber yarn, 30 to 50 parts by weight of polybutadiene diol; 1 to 2 parts by weight of ethylenediamine; 40 to 60 parts by weight of calcium carbonate; And 1 to 2 parts by weight of a catalyst. In this case, the base and the curing agent may be blended in a weight ratio ranging from 1: 1 to 1: 4.

In another embodiment, the thermal barrier coating layer 150 comprises 40 to 50 parts by weight of methylene diphenyl diisocyanate; 50 to 60 parts by weight of a polyether polyol, 8 to 12 parts by weight of a synthetic fiber yarn, 30 to 50 parts by weight of polytetramethylene ether diol; 1 to 2 parts by weight of ethylenediamine; 60 to 80 parts by weight of calcium carbonate; 1 to 2 parts by weight of a catalyst; And 1 to 2 parts by weight of a pigment. In this case, the base and the curing agent may be blended in a weight ratio ranging from 1: 1 to 1: 4.

The synthetic fiber yarn 151 included in the heat insulating coating layer 150 is formed into a hollow pipe type and has a diameter of 2 to 4 mm and an average fiber length of 2 to 10 mm. Examples of the synthetic fiber yarn 151 include polypropylene fiber yarn, polyethylene fiber yarn or polyethylene terephthalate fiber yarn. The synthetic fiber yarn 151 can be uniformly dispersed in the heat insulating coating layer 150 with a single fiber yarn. The reason why the synthetic fiber yarn is formed to have a smaller diameter and a shorter length than that of a general short fiber or a stranded strand is to uniformly disperse the composite fiber yarn in the coating composition firstly and secondly to form the heat insulating coating layer 150 through a spraying system This is to enable injection with the injection nozzle. As a result of a lot of tests, it has been found that when the diameter and the average fiber length of the synthetic fiber yarn are out of the above range, the uniform dispersibility is impaired and it is difficult to spray through the spraying system.

The surface of the synthetic fiber yarn 151 is water repellent coated. In one embodiment, the surface of the synthetic fiber yarn 151 may be coated with a fluorinated water repellent agent. An example of the fluorine-based water repellent agent is an emulsion of about 18% solids, and may have a pH of about 5. In one embodiment, when an immersion liquid is prepared by mixing 5% by weight of a fluorine-based water repellent and 95% by weight of water and the synthetic fiber threads 151 are immersed in the immersion liquid for a certain period of time and then dried, Treatment coating. If necessary, heat treatment can be performed after drying, and the heat treatment condition can be performed at a temperature of about 150 ° C for about 2 minutes. As described above, since the insulating fiber coating layer 150 includes the synthetic fiber yarn 151 having a hollow pipe shape and having a water repellent surface, the space is secured by providing a plurality of voids in the insulating coat layer 150 . Since the surface of the synthetic fiber yarn 150 is water-repellent, the liquid phase can not penetrate into the synthetic fiber yarn. Accordingly, the voids impart heat insulation to the heat insulating coating layers 150.

The short fiber bonding layer 160 is applied on the heat insulating coating layer 150. The short fiber bonding layer 150 is formed of a web formed of a first staple fiber, which is a polyester fiber, a web formed of a second staple fiber, which is a glass fiber, and a web, The fiber coupling body 161 is integrated with the sheet body 162 formed of a thermosetting adhesive resin.

The polyester fiber as the first staple fiber may have a fiber length of about 1 to 8 micrometers and a fiber length of 20 to 120 mm. In one embodiment, the polyester fiber has a weight of 200 to 500 g / m ² , a melting point of 254 to 284 ° C, a elongation at break of 200 to 500%, a dry heat shrinkage at 160 ° C of 20 to 60% May be 2 - 10 denier.

The length of the glass fiber as the second staple fiber may have a length of 10 mm to 100 mm, more specifically 10 mm to 90 mm, more specifically 10 mm to 80 mm. Particularly, when the length of the glass fiber is less than 10 mm, there is a problem in bonding with the polyester fiber. The glass fiber reinforces the strength of the short fiber binding body 161.

The length of the carbon fiber as the third staple fiber may have a length of 20 to 70 mm. The carbon fibers reinforce heat resistance to the short fiber bonding layer 160.

In one embodiment, the polyester fibers may comprise 50-70 wt%, glass fibers 10-20 wt%, and carbon fibers 10-40 wt% based on the total weight of the short fiber assemblies 161, , The content of the second staple fibers may be smaller than the content of the first staple fibers, and the content of the third staple fibers may be smaller than the content of the second staple fibers.

The short fiber assemblies 161 are formed by mutually combining respective webs formed of three types of short fibers, and have voids. The average pore size of the voids formed in the short fiber binding body 161 may be 1 to 6 micrometers. When the pore size is less than 1 micrometer, the thermosetting adhesive resin constituting the sheet body 162 hardly penetrates through the pores. On the contrary, when the pore size exceeds 6 micrometers, It is difficult to secure physical properties. On the other hand, the pores formed in the short fiber composite material 161 have a random shape. The porosity may be between 25% and 60%.

The sheet body 162 can be formed by curing the thermosetting adhesive resin. The thermosetting adhesive resin may be selected from a polyurethane resin, an epoxy resin, and an acrylic resin. In one embodiment, the thermosetting adhesive resin may be a liquid polyurethane resin which is cured by a thermal reaction at 60-80 占 폚. Specifically, the liquid type polyurethane resin may include a polyether polyol, which is a subject, and a diphenylmethane diisocyanate curing agent containing methylenebisphenyl in a molecular weight of about 350-400. The polyether polyol and the curing agent may be mixed in a weight ratio of 100: 23. The liquid polyurethane resin has a viscosity of about 4,000 mPa.s, a specific gravity (g / cm ³ ) of about 1.5-1.7, a tensile strength of 12 MPa or more as measured by ASTM-D297, a shear strength measured by ASTM-D1002 Can be about 10 MPa.

The short fiber binding layer 160 has a shape in which the short fiber binding body 161 is integrated with the sheet body 162. Concretely, the thermosetting adhesive resin constituting the sheet body 162 may penetrate through the pores and may be cured after the voids formed in the single-fiber bonded body 161. That is, the short fiber binding layer 160 may be a form in which the short fiber binding body 161 is embedded in the sheet body 162. The short fiber bonding layer 160 has a thermal resistance of 0.085 m < ² > K / W or more as measured according to ASTM-D5470, and provides insulation performance to the rooftop waterproof structure.

The finish layer 170 is formed on the short fiber bonding layer 160. Although the finish layer 170 is shown as one layer in FIG. 1, the finish layer 170 may be formed of two or more layers. In one embodiment, the finish layer 170 may be formed by applying a stone mortar filled with bead foam and mixed with stone powder, or may be formed from pressed concrete. In other embodiments, the finish layer 170 may be formed by applying polyurea. In yet another embodiment, the finish layer 170 can be made by spraying a color patterned concrete powder or a colored hardener powder, etc. to form a layer and cure.

Hereinafter, a method of constructing a rooftop structure of a building according to the present invention will be described in detail.

2 is a flowchart of a method of constructing a rooftop reinforced structure of a building according to an embodiment of the present invention. Referring to FIG. 2, the rooftop-reinforced structure construction method according to an embodiment of the present invention first removes impurities on the roof and constructs a primer layer 110 (step S10). Removal of foreign matter may include surface treatment such as outer wall cleaning and grinding treatment. When there is a crack in the outer wall, a waterproof material filling a gap in the crack of the outer wall may be used. Examples of the waterproof material include urethane sealant, silicone sealant, elastic putty, epoxy putty, handy coat, water-soluble putty and the like. If there is unevenness on the surface, grinding may be carried out to smooth the work. The primer layer 110 may be formed using a spraying system or a conventional roller.

Next, a protrusion 121 having a random pattern is formed on a lower surface, a first groove part 122 having a lattice structure is formed on an upper surface thereof, a first groove part 122 having a first insertion groove 123 formed on both sides thereof, Are arranged on the primer layer 110 at predetermined intervals and both side portions of the first connection sheet 124 formed in a cross shape are connected to the first insertion grooves 123 of the adjacent first sheet, The sheets are combined to form the first waterproof layer 120. The engagement of the first connection sheet 124 is such that the side of the first connection sheet 124 is coupled to the first insertion groove 123 while slightly lifting one end of one first sheet, And then engaging the other side of the first connecting sheet 124 with the first insertion groove 123 while slightly lifting the end of the first sheet. At this time, urethane may be applied to the lower surface of the first connection sheet 124 to a predetermined thickness. On the other hand, the rim of the first waterproof layer 120 is sealed by a sealant process (step S20).

Next, a moisture absorption layer 130 is formed on the first waterproof layer 120. The moisture absorption layer 130 may be formed by disposing and adhering a fiberglass cloth, a polyethylene short fiber nonwoven fabric, a urethane resin sheet, or the like in the form of covering the first waterproof layer 120 at step S30.

Next, a plurality of second sheets having a predetermined size, a second groove portion 141 formed on the lower surface thereof and a second insertion groove 142 formed on both sides thereof are arranged on the hygroscopic layer 130 at predetermined intervals, The groove portion 141 is arranged to be offset from the first groove portion 122 and both side portions of the second connection sheet 143 formed in a cross shape are coupled to the second insertion groove 142 of the adjacent second sheet, The second sheets are combined to form a second waterproof layer 140. The engagement of the second connection sheet 143 is such that the side of the second connection sheet 143 is coupled to the second insertion groove 142 while slightly lifting one end of one second sheet, And engaging the other side of the second connecting sheet 143 with the second insertion groove 142 while slightly lifting the end of the second sheet. At this time, urethane may be applied to the lower surface of the second connection sheet 143 to a predetermined thickness. On the other hand, the rim of the second waterproof layer 140 is sealed by a sealant process (step S40).

Next, on the second waterproof layer 140, 40 to 50 parts by weight of methylene diphenyl diisocyanate; 50 to 60 parts by weight of a polyester polyol, 15 to 20 parts by weight of a synthetic fiber yarn, 30 to 50 parts by weight of polybutadiene diol; 1 to 2 parts by weight of ethylenediamine; 40 to 60 parts by weight of calcium carbonate; The heat insulating coating layer 150 is applied through a spraying system with a coating composition comprising a curing agent comprising 1 to 2 parts by weight of a catalyst. In the process of forming the coating layer composition of the thermal insulation coating layer 150, 5% by weight of a fluorine-based water repellent agent and 95% by weight of water are mixed to prepare an immersion liquid, the synthetic fiber threads are immersed in the immersion liquid for a certain period of time, The surface of the fiber yarns may be subjected to a water repellent coating process. Alternatively, the heat insulating coating layer 150 may be prepared by mixing 40 to 50 parts by weight of methylene diphenyl diisocyanate; 50 to 60 parts by weight of a polyether polyol, 8 to 12 parts by weight of a synthetic fiber yarn, 30 to 50 parts by weight of polytetramethylene ether diol; 1 to 2 parts by weight of ethylenediamine; 60 to 80 parts by weight of calcium carbonate; 1 to 2 parts by weight of a catalyst; It is also possible to apply the composition through a spraying system with a coating composition containing 1 to 2 parts by weight of pigment (Step S50).

Next, a liquid thermosetting adhesive resin is applied to the upper part of the heat insulating coating layer 150. The thermosetting adhesive resin is a liquid type polyurethane resin, and the resin can be prepared by including a polyether polyol as a main component and a diphenylmethane diisocyanate curing agent containing methylenebisphenyl in a molecular weight of about 350-400. In some cases, a certain amount of a filler such as calcium carbonate may be added. The polyether polyol and the curing agent may be mixed in a weight ratio of 100: 23. The liquid polyurethane resin has a viscosity of about 4,000 mPa.s, a specific gravity (g / cm ³ ) of about 1.5-1.7, a tensile strength of 12 MPa or more as measured by ASTM-D297, a shear strength measured by ASTM-D1002 Can be about 10 MPa. Next, a short fiber bundle body 161 in which the webs formed of three kinds of single fibers are mutually bonded is disposed. The first thermosetting adhesive resin penetrates into the voids formed in the short-fiber-bonded body 161 after the short-fiber-bonded body 161 is disposed and the short-fiber-bonded body 161 is buried in the first thermosetting adhesive resin. Next, when the first thermosetting adhesive resin is cured, the sheet body 162 is formed and the short fiber bonding layer 160 is formed (step S60).

On the other hand, the production of the single-fiber bonded body 161 can be accomplished through another process. Specifically, the step of forming the web by spraying the short fibers together with the hot air on the continuously circulating perforating belt, and the air blowing in the lower part of the perforating belt to stick the short fibers on the perforating belt; Mechanically interconnecting the webs via needle punching to form a planar assembly; And elevating the smoothness of the joined body by subjecting the joined body to heat treatment. In this case, it is important to add not only the planar bonded body through the needle punching but also a step of further increasing the smoothness of the bonded body by further subjecting it to a hot-pressing treatment. Needle punching is a process of mechanically interconnecting the webs by moving needles up and down in both directions relative to the surface of the fiber web. Through needle punching, the web can be a planar assembly. However, the smoothness of the planar assemblies formed only by needle punching is very low. The upward and downward movement of the needle increases the degree of bending on the surface of the bonded body. In the case where such a bonded body is used as it is, the thermosetting adhesive resin can permeate nonuniformly into the single-fiber bonded body. Therefore, different physical properties (for example, thermal resistance) may appear depending on the portion of the short fiber binding layer 160. However, as described above, in the case of performing the additional pressure treatment after forming a planar assembly through needle punching, the flatness of the planar assembly increases, and then the penetration of the thermosetting adhesive resin can be made uniform. Therefore, the difference in physical properties depending on the region of the short fiber binding layer 160 is greatly reduced.

Next, the finish is completed by forming the finish layer 170 on the short fiber bonding layer 160 (step S70).

The technical idea of the present invention has been described above concretely. However, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims. It will be understood that various modifications may be made in the invention, and that such modifications are also included within the scope of the present invention.

100: rooftop reinforced structure
110: primer layer
120: first waterproof layer
130: Moisture absorbing layer
140: second waterproof layer
150: Adiabatic coating layer
160: short fiber bonding layer
170: finish layer

Claims (4)

A primer layer;
A first waterproof layer applied on the primer layer;
A hygroscopic layer applied on the first waterproof layer;
A second waterproof layer applied on the moisture absorption layer;
A heat insulating coating layer applied on the second waterproof layer; And
And a short fiber bonding layer applied on the second waterproof layer,
Wherein the first waterproof layer is formed by joining a plurality of sheets in a horizontal direction, a first insertion groove is formed in both side portions of each sheet, and a first insertion groove of the two sheets is connected to form a cross shape, And a first connecting sheet inserted into the first insertion groove to cover upper and lower portions of the spacing space of each sheet,
The second waterproof layer is formed by horizontally joining a plurality of sheets. The second insertion grooves are formed on both sides of each sheet. The second waterproof layer is formed in a cross shape by connecting the second insertion grooves of the two sheets, And a second connecting sheet which is inserted into the second insertion groove so that the upper and lower portions fill up the spacing spaces of the respective sheets,
Wherein the heat insulating coating layer comprises 40 to 50 parts by weight of methylene diphenyl diisocyanate; 15 to 20 parts by weight of a synthetic fiber yarn having a water repellent coating on the surface thereof, which has a diameter of 2 to 4 mm and an average fiber length of 2 to 10 mm, and a surface comprising 50 to 60 parts by weight of a polyester polyol; 30 to 50 parts by weight of polybutadiene diol; 1 to 2 parts by weight of ethylenediamine; 40 to 60 parts by weight of calcium carbonate; And 1 to 2 parts by weight of a catalyst,
Wherein the short fiber bonding layer comprises a web formed of a first staple fiber which is a polyester fiber, a web formed by a second staple fiber which is a glass fiber, and a web formed by a third staple fiber which is a carbon fiber, Fiberglass composite is smaller than the content of the polyester fiber and the content of the carbon fiber is smaller than the content of the glass fiber on the basis of the total weight of the single- Roof reinforcement structure of structure. A primer layer;
A first waterproof layer applied on the primer layer;
A hygroscopic layer applied on the first waterproof layer;
A second waterproof layer applied on the moisture absorption layer;
A heat insulating coating layer applied on the second waterproof layer; And
And a short fiber bonding layer applied on the second waterproof layer,
Wherein the first waterproof layer is formed by joining a plurality of sheets in a horizontal direction, a first insertion groove is formed in both side portions of each sheet, and a first insertion groove of the two sheets is connected to form a cross shape, And a first connecting sheet inserted into the first insertion groove to cover upper and lower portions of the spacing space of each sheet,
The second waterproof layer is formed by horizontally joining a plurality of sheets. The second insertion grooves are formed on both sides of each sheet. The second waterproof layer is formed in a cross shape by connecting the second insertion grooves of the two sheets, And a second connecting sheet which is inserted into the second insertion groove so that the upper and lower portions fill up the spacing spaces of the respective sheets,
Wherein the heat insulating coating layer comprises 40 to 50 parts by weight of methylene diphenyl diisocyanate; And 50 to 60 parts by weight of a polyester polyol; 8 to 12 parts by weight of a synthetic fiber yarn having a diameter of 2 to 4 mm and an average fiber length of 2 to 10 mm, 30 to 50 parts by weight of polybutadiene diol; 1 to 2 parts by weight of ethylenediamine; 60 to 80 parts by weight of calcium carbonate; And 1 to 2 parts by weight of a catalyst,
Wherein the short fiber bonding layer comprises a web formed of a first staple fiber which is a polyester fiber, a web formed by a second staple fiber which is a glass fiber, and a web formed by a third staple fiber which is a carbon fiber, Fiberglass composite is smaller than the content of the polyester fiber and the content of the carbon fiber is smaller than the content of the glass fiber on the basis of the total weight of the single- Roof reinforcement structure of structure. Removing a rooftop material and constructing a primer layer;
A plurality of first sheets having a first insertion groove formed on both sides thereof with a predetermined standard are arranged on the primer layer at predetermined intervals and both side portions of the first connection sheet formed in a cross shape are coupled to adjacent first insertion grooves, Joining the first sheets to construct a first waterproofing layer;
Applying a moisture absorption layer on the first waterproof layer;
A plurality of second sheets having a predetermined size and having second insertion grooves formed on both sides thereof are arranged on the hygroscopic layer at predetermined intervals and both side portions of the second connection sheet formed in a cross shape are coupled to the adjacent second insertion grooves, Joining the second sheets to construct a second waterproofing layer;
40 to 50 parts by weight of methylene diphenyl diisocyanate on the second waterproof layer; 15 to 20 parts by weight of a synthetic fiber yarn having a water repellent coating on the surface thereof, which has a diameter of 2 to 4 mm and an average fiber length of 2 to 10 mm, and a surface comprising 50 to 60 parts by weight of a polyester polyol; 30 to 50 parts by weight of polybutadiene diol; 1 to 2 parts by weight of ethylenediamine; 40 to 60 parts by weight of calcium carbonate; Applying a heat insulating coating layer comprising a curing agent comprising 1 to 2 parts by weight of a catalyst; And
On the heat insulating coating layer, a short fiber assembly in which a web formed of a first staple fiber, which is a polyester fiber, a web formed of a second staple fiber, which is a glass fiber, and a web formed of a third staple fiber, Wherein the glass fibers are formed integrally with a sheet member formed of a thermosetting adhesive resin and the content of the glass fibers is less than the content of the polyester fibers and the content of the carbon fibers is less than the content of the glass fibers, Layer construction of the roof of the building. Removing a rooftop material and constructing a primer layer;
A plurality of first sheets having a first insertion groove formed on both sides thereof with a predetermined standard are arranged on the primer layer at predetermined intervals and both side portions of the first connection sheet formed in a cross shape are coupled to adjacent first insertion grooves, Joining the first sheets to construct a first waterproofing layer;
Applying a moisture absorption layer on the first waterproof layer;
A plurality of second sheets having a predetermined size and having second insertion grooves formed on both sides thereof are arranged on the hygroscopic layer at predetermined intervals and both side portions of the second connection sheet formed in a cross shape are coupled to the adjacent second insertion grooves, Joining the second sheets to construct a second waterproofing layer;
40 to 50 parts by weight of methylene diphenyl diisocyanate on the second waterproof layer; And 50 to 60 parts by weight of a polyester polyol; 8 to 12 parts by weight of a synthetic fiber yarn having a diameter of 2 to 4 mm and an average fiber length of 2 to 10 mm, 30 to 50 parts by weight of polybutadiene diol; 1 to 2 parts by weight of ethylenediamine; 60 to 80 parts by weight of calcium carbonate; Applying a heat insulating coating layer comprising a curing agent comprising 1 to 2 parts by weight of a catalyst; And
On the heat insulating coating layer, a short fiber assembly in which a web formed of a first staple fiber, which is a polyester fiber, a web formed of a second staple fiber, which is a glass fiber, and a web formed of a third staple fiber, Wherein the glass fibers are formed integrally with a sheet member formed of a thermosetting adhesive resin and the content of the glass fibers is less than the content of the polyester fibers and the content of the carbon fibers is less than the content of the glass fibers, Layer construction of the roof of the building.

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