Fastener for fixing insulation and finishing materials

Abstract

The present invention discloses a fastener for fixing insulation and finishing materials, wherein the structure of the support portion and the head portion is improved to allow for more convenient attachment of finishing materials using various adhesives after stably fixing insulation to a concrete wall, thereby efficiently adapting to changes in the thickness of the insulation and enabling stable attachment of finishing materials using various adhesives, while the structure is simple and rational, making construction convenient. The fastener for fixing insulation and finishing materials according to the present invention comprises: a head portion comprising a first plate having a plate-shaped member having a through hole formed in the center, a plurality of locking tabs protruding from the circumference of the through hole toward the center, and a plurality of through holes drilled around the periphery to be in contact with and in close contact with the insulation material; a support portion comprising a body extending vertically from the bottom surface of the through hole of the first plate while having a hollow interior, and a socket extending from the body toward the tip so that the head of a concrete nail driven into a wall is caught on the inner tip; and a finishing cap fitted to block the inflow of adhesive into the through hole of the head portion, wherein a second plate for attaching the finishing material is formed on the front surface of the first plate and connected to a plurality of protruding supports to form a space into which adhesive can be introduced; The second plate is characterized by having a central opening to pass through the through hole of the first plate, and a plurality of through holes formed between the central part and the rim part so that adhesive applied to attach the finishing material can flow into the space between the support and the first plate, thereby increasing the adhesive bonding strength by connecting the applied adhesive; the surface of the second plate is formed with an uneven surface by a plurality of protruding small protrusions to increase the adhesive bonding strength of the applied adhesive, thereby enabling the finishing material to be stably attached; and the rim part of the second plate is formed with a step difference such that the outer diameter is smaller than that of the rim part of the first plate, providing a space for the adhesive to easily flow into the space of the support connecting the first plate and the second plate, and the surface is applied to the first plate and the second plate in a connected state to increase the adhesive bonding strength of the adhesive.

Description

Technology Field

[0001] The present invention relates to a fastener for fixing insulation and finishing materials, and more specifically, to a fastener for fixing insulation and finishing materials in which the structure of the support portion and the head portion is simplified and rationally improved to facilitate construction, so that after stably fixing the insulation to a concrete wall, the finishing material can be attached more conveniently and stably using an adhesive. Background Technology

[0002] Generally, when constructing or repairing a building, insulation materials such as styrofoam, glass wool, mineral wool, and cellulose are attached to walls made of concrete or brick to provide thermal insulation and soundproofing effects inside, and finishing materials such as gypsum boards are attached to the front surface of the insulation materials.

[0003] For example, as fixing devices or fasteners for such insulation and finishing materials, Patent No. 10-1402220 "Insulation fixing device and construction method using the same," Registered Patent No. 10-1691166 "Insulation fixing device," Registered Patent No. 10-2284476 "Fastener for fixing insulation," and Registered Utility Model No. 20-0492128 "Fastener for fixing insulation" have been proposed.

[0004] The common configuration of the aforementioned conventional fixing devices or fasteners for insulation and finishing materials comprises: a head portion having a plate-shaped member with a through hole formed in the center, in close contact with the insulation material, and protruding in the central direction from the circumference of the through hole to support a nail driver for driving concrete nails so as not to move; and a support portion vertically coupled to the bottom surface of the through hole of the head portion, having a hollow, curved cylindrical shape with a diameter that decreases in step toward the tip so that the head of a concrete nail driven into a wall is caught inside.

[0005] And the head portion is a plate-shaped member forming a circular or polygonal shape, and is formed by a first plate having a predetermined diameter around the through hole, a plurality of through holes in the shape of a circle and a trapezoid formed in the first plate, and a plurality of protrusions formed between the through holes of the first plate.

[0006] In addition, the support member comprises a hollow cylindrical body portion that extends vertically from the through hole of the first plate and has the same diameter as the through hole, and a socket portion that extends from the end of the body portion and is formed with a tip that is inwardly inclined so that the head of a concrete nail can be caught thereon.

[0007] The above-mentioned conventional fixing devices or fasteners for insulation and finishing materials allow the insulation to be easily fixed to the wall at an accurate position by supporting the fixing device with a locking tab at the head to prevent movement, thereby simplifying construction and reducing construction time; additionally, the finishing material is bonded by applying adhesive to a plurality of through holes and protrusions formed in the head that is in close contact with the surface of the insulation.

[0008] However, the aforementioned conventional fixing devices or fasteners for insulation and finishing materials had a problem in that the adhesive applied through the multiple through holes formed in the head portion adhered to the insulation material with low durability rather than the thin edges of the through holes, and the protrusions formed in the head portion also separated during operation due to weakened adhesion before curing caused by insufficient adhesive strength resulting from the inflow of a small amount of adhesive, and easily peeled off if the finishing material was impacted even after curing.

[0009] Furthermore, all of the aforementioned prior art technologies are structures that cannot be applied to changes in the thickness of the insulation material, and thus there is a problem of inefficiency in work due to changes in the thickness of the insulation material. Prior art literature

[0010] (Reference 1) Korean Registered Patent No. 10-1402220 (Published May 30, 2014) (Reference 2) Korean Registered Patent No. 10-1691166 (Published December 30, 2016) (Reference 3) Korean Registered Patent No. 10-2284476 (Published August 2, 2021) (Reference 4) Korean Registered Utility Model No. 20-0492128 (Published August 12, 2020) The problem to be solved

[0011] Accordingly, the present invention aims to solve the aforementioned conventional problems. The objective of the present invention is to provide a fastener for fixing insulation and finishing materials that improves the structure of the support and head portions so that, after stably fixing the insulation to a concrete wall, the finishing material can be attached more conveniently using various adhesives, thereby efficiently adapting to changes in the thickness of the insulation and stably bonding the finishing material using various adhesives, while ensuring that the structure is simple and rational and making construction convenient. means of solving the problem

[0012] The fastener for fixing insulation and finishing materials according to the present invention for achieving the above objective comprises: a head portion comprising a first plate formed as a plate-shaped member having a circular or polygonal shape, having a through hole formed in the center, and a plurality of locking pieces formed protruding from the circumference of the through hole toward the center to support an unillustrated nail driver that drives concrete nails without moving, and having a plurality of through holes drilled around it to be in close contact with the insulation material; a support portion comprising a body extending vertically from the bottom surface of the through hole of the first plate while being hollow inside, and a socket formed such that the head of a concrete nail driven into a wall is caught on the inner tip, extending from the body with a diameter that decreases in stages toward the tip; and a finishing cap fitted to block the inflow of adhesive into the through hole of the head portion; wherein a second plate is formed on the front surface of the first plate to attach the finishing material while being connected to a plurality of protruding supports to form a space into which adhesive can be introduced. The second plate is formed with a central opening to pass through the through hole of the first plate, and a plurality of through holes are formed between the central and periphery portions so that adhesive applied to attach the finishing material can flow into the space between the support and the first plate, thereby increasing the adhesive bonding strength through the connected application of the adhesive; and the surface of the second plate is formed with an uneven surface by a plurality of protruding small protrusions to increase the adhesive bonding strength of the applied adhesive, thereby enabling the finishing material to be stably attached;In a fastener (1) for fixing insulation and finishing materials, the edge portion of the second plate is formed with a step so that its outer diameter is smaller than that of the edge portion of the first plate, thereby providing a contact space that allows adhesive to easily flow into the support connecting the first plate and the second plate when applied, and the adhesive surface is applied to the first plate and the second plate in a continuous state to increase the adhesive bonding strength of the adhesive, the technical configuration feature may be that a step groove is formed in the bottom edge portion of the first plate that contacts the insulation material, so that adhesive flows in and is applied continuously to the insulation material, the first plate, and the second plate to increase mutual adhesive bonding strength.

[0013] delete

[0014] delete

[0015] In addition, according to the present invention, a plurality of catch pieces are formed that are inserted into the open center of the second plate and are caught at the bottom; a plurality of first through holes are formed that coincide with the through holes of the second plate; a plurality of second through holes are formed that are perforated to communicate with the uneven portion of the second plate; ribs are formed protruding from each corner portion, such as the edge portion and the first and second through holes, to form a groove for receiving the applied adhesive; and an auxiliary plate in the shape of a circular or polygonal plate is further provided so as to be coupled so that the bottom surface of the edge portion contacts the front surface of the first plate to adjust the height. Effects of the invention

[0016] According to the present invention, the following effects are expected.

[0017] In this invention, the adhesive is applied by flowing into a stepped groove formed on the edge of a first plate that contacts an insulation material fixed to a wall, and is subsequently applied to the insulation material, the first plate, and the second plate, thereby increasing mutual adhesive bonding strength.

[0018] In addition, the present invention allows the adhesive to be applied continuously without separation by means of a second plate formed to be spaced apart from the first plate as a support and formed with a small perimeter size, thereby enabling the finishing material to be stably attached through increased mutual adhesive bonding strength.

[0019] The present invention allows for length adjustment suitable for changes in the thickness of the insulation material by means of a support member in which the body and the socket are formed separately so as to be screw-coupled to each other and a stop pin is inserted and coupled, thereby simplifying construction and shortening construction time.

[0020] In addition, by providing an auxiliary plate that is coupled to the second plate, the height can be supplemented by the gap between the finishing materials, thereby allowing the finishing materials to be attached more stably. Brief explanation of the drawing

[0021] FIG. 1 is an exploded perspective view of a fastener for fixing insulation and finishing materials according to the present invention. FIG. 2 is a perspective view showing a portion of a fastener for fixing insulation and finishing materials according to the present invention. FIG. 3 is a perspective view showing a fastener for fixing insulation and finishing materials according to the present invention in a circular shape. FIG. 4 is an enlarged cross-sectional view showing a partial state in which an insulating material is fixed to a wall using a fastener for fixing an insulating material and a finishing material according to the present invention, and an adhesive is applied and a finishing material is attached. FIG. 5 is a bottom perspective view showing the support portion of a fastener for fixing insulation and finishing materials formed in polygonal and circular shapes according to the present invention, separated. FIG. 6 is a cross-sectional view of the combined state of the embodiment of FIG. 5. FIG. 7 (A, B) is a perspective view showing an auxiliary plate formed in a polygonal and circular shape that is coupled to the second plate of a fastener for fixing insulation and finishing materials according to the present invention and adjusts the height. FIG. 8 (A, B) is a perspective view showing a partial cutaway view of an auxiliary plate formed in a polygonal and circular shape attached to a second plate of a fastener for fixing insulation and finishing materials according to the present invention. FIG. 9 is a cross-sectional view showing an enlarged view of a part of the state in which insulation material is fixed to a wall, adhesive is applied, and a finishing material is attached, as an embodiment of FIG. 8(A). Specific details for implementing the invention

[0022] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0023] The fastener (1) for fixing insulation and finishing materials of the present invention is fixed at multiple locations to improve adhesive strength or bonding strength by fixing the insulation material (200) to the concrete wall (100) with a concrete nail (4) as shown in FIGS. 1 and 4, and then applying an adhesive (400) to the head portion (3) of the fastener and attaching the finishing material (300).

[0024] The fastener (1) for fixing insulation and finishing materials according to the present invention comprises: a head portion (3) made of a first plate (3a) which is a plate-shaped member formed in a circular or polygonal shape, has a through hole (31) formed in the center, and has a plurality of locking pieces (311) formed around the through hole (31) to support an unillustrated nailer that drives a concrete nail (4) so ​​as not to move, and has a plurality of through holes (33) drilled around it to be in contact with and in close contact with the insulation material (200); and a support portion (2) made of a body (21) which is vertically hollow and extends from the bottom surface of the through hole (31) of the first plate (3a), and a socket (22) which is formed such that the head of a concrete nail (4) driven into a wall (100) is caught on the inner tip, with the diameter gradually decreasing from the body (21) toward the tip. A basic configuration is used that includes a sealing cap (5) which is fitted to block the inflow of adhesive (400) into the through hole (31) of the head portion (3).

[0025] The present invention is to improve the structure so that the adhesive (400) is applied in a continuous, uninterrupted manner to stably attach the finishing material (300), thereby increasing mutual adhesive bonding strength, and so that the length can be adjusted to suit the spacing between the fastener (1) and the finishing material (300) and the thickness of the insulation material (200).

[0026] That is, in the present invention, when a finishing material (300) is attached while the adhesive (400) is directly applied to the first plate (3a) of a fastener (1) which is formed in a circular or square shape as shown in FIGS. 1 to 3, the adhesive (400) has insufficient bonding strength and is easily peeled off. To solve this, a second plate (3b) on which the adhesive (400) is applied is added to the front surface of the first plate (3a) to attach the finishing material (300).

[0027] The second plate (3b) is formed in a state connected to a plurality of protruding supports (34) that are spaced apart to provide a space for the applied adhesive (400) to flow into the first plate (3a).

[0028] Additionally, the second plate (3b) is open in a square or circular shape at its center (35) to pass through the through hole (31) of the first plate (3a), and a plurality of through holes (31') are formed between the center (35) and the edge portion (36) so that adhesive (400) applied to attach the finishing material (300) can flow into the space between the support (34) and the first plate (3a), and the adhesive (400) applied through the through hole (33') is applied continuously without interruption to increase the adhesive bonding strength.

[0029] In addition, an uneven surface (37) is formed on the surface of the second plate (3b) by means of a plurality of protruding small protrusions, thereby increasing the adhesive bonding strength between the applied adhesive (400) and the second plate (3b) so that the finishing material (300) can be stably attached.

[0030] In addition, the adhesive (400) applied to the second plate (3b) and the first plate (3a) is provided to easily flow into the space of the support (34) connecting the first plate (3a) and the second plate (3b), and the surface is applied in a state connected to the first plate (3a) and the second plate (3b) so as to increase the adhesive bonding strength of the adhesive (400), the edge portion (36) of the second plate (3b) is formed such that the outer diameter is smaller than the edge portion (32) of the first plate (3a) to form a step.

[0031] Next, as shown in FIGS. 2 and 4, the present invention has a stepped groove (321) on the bottom edge portion (32) of the first plate (3a) that contacts the insulation material (200). second The adhesive (400) is formed and applied into the stepped groove (321) and subsequently applied to the insulating material (200), the first plate (3a), and the second plate (3b), thereby increasing the mutual adhesive bonding strength.

[0032] Next, as shown in FIGS. 5 and 6, the present invention can be configured such that the support portion (2) of the fastener (1) is formed separately into a body (21) with a female screw (211) and a socket (22) with a male screw (221) so as to be screw-coupled to each other, so as to be able to adjust the fixing length suitable for changes in the thickness of the insulation material (200) on the wall (100), such as the exterior or interior.

[0033] And, in the body (21) of the separated fastener (1) above, a plurality of fixing holes (212) are drilled at equal intervals in the longitudinal direction, and a stop pin (213) is provided to be fitted into the fixing holes (212) formed in the body (21).

[0034] The spacing of the fixing holes (212) formed in the body (21) of the above fastener (1) is formed as 10 mm as an example, and the length can be adjusted on-site to allow for the addition of a thickness of up to 30 mm of insulation material (200). The length adjustment is made so that when the male screw (221) of the socket (22) is inserted into the female screw (211) of the body (21) by screw coupling, the tip of the male screw (221) of the socket (22) is caught and stopped by a stop pin (213) that is fitted into the fixing hole (212) at a position corresponding to the thickness of the insulation material (200), as shown in the enlarged portion of Fig. 6.

[0035] Next, as shown in FIGS. 7 and 8, when the surface of the wall (100) is curved (depressed) and the distance between the head portion (3) of the fastener (1) fixed to the wall (100) and the finishing material (300) deviates from the head portion (3) of the surrounding fastener (1) to compensate for this, an auxiliary plate (6) in the shape of a plate that forms a circle or polygon can be mounted on the second plate (3b) of the fastener (1) and used.

[0036] In addition, the above auxiliary plate (6) is intended to efficiently utilize the thinning of the coating thickness when the adhesive (400) for attaching the finishing material (300) is silicone instead of ordinary gypsum bond.

[0037] That is, the auxiliary plate (6) is formed with a plurality of catch pieces (61) that are inserted into the open center (35) of the second plate (3b) and have their lower ends caught therein, and a plurality of first through holes (62) that correspond to the through holes (33') of the second plate (3b) are formed, and a plurality of second through holes (63) that are perforated to communicate with the uneven portion (37) of the second plate (3b) so that adhesive (400) is inserted and bonded therein, and ribs (65) are formed protruding from each corner portion, such as the edge portion (64), the first through holes (62), and the second through holes (63), to form a groove in which adhesive (400) for attaching the finishing material (30) is received, and the bottom surface of the edge portion (64) is made to contact the front surface of the first plate (3a) and is made to supplement the height by the gap (H) of 2mm to 6mm between the finishing materials (300).

[0038] The fastener (1) for fixing insulation and finishing materials of the present invention, configured as described above, is formed by attaching a concrete nail (4) that has passed through the catch (321) of the central through hole (31) as shown in FIG. 4 to a nail gun (not shown), and then pushing the tip of the socket (22) of the fastener (1) so that it penetrates the insulation material (200) and contacts the wall (100), and then fixing the fastener (1) to the wall (100) by firing the nail gun.

[0039] The first plate (3a) on the bottom surface of the head portion (3) of the multiple fasteners (1) fixed to the wall (100) maintains the state in which the insulation material (200) is in close contact with the wall (100).

[0040] Additionally, when the thickness of the insulation material (200) attached to the outer and inner walls increases in increments of 10 mm, as shown in FIG. 5, a stop pin (213) is inserted into a fixing hole (212) formed in the body (21) of the support member (2), which is a position suitable for the increased thickness of the insulation material (200) to be attached, and then the male screw (221) of the socket (22) is screwed into the female screw (211) of the body (21), so that the tip of the male screw (221) catches on the stop pin (213) and stops moving, and then the length of the support member (2) is adjusted and used.

[0041] Next, a finishing cap (5) is fitted into the through hole (31) of the head portion (3) to block the adhesive (400) from flowing into the support portion (2), and an adhesive (400) made of gypsum bond is applied to the head portion (3) of the fastener (1) that is fixing the insulation material (200) in order to attach a finishing material (300) made of gypsum board material, as an example.

[0042] The adhesive (400) made of gypsum bond material applied to the head portion (3) of the above fastener (1) is pushed into the gap space of the support (34) connecting the center (35) and through hole (31') formed in the second plate (3b) and the second plate (3b) which has a smaller external size than the first plate (3a), and then filled up to the through hole (33) drilled in the first plate (3a), and then applied so as to be continuously connected to the surface of the first plate (3a) and the second plate (3b), the stepped groove (321) formed in the edge portion (32) of the first plate (3a), and the surrounding insulation material (200).

[0043] Accordingly, as described above, after applying adhesive (400) to the first plate (3a) and second plate (3b), which are the head portion (3) of the fastener (1), and to the insulation material (200), a finishing material (300) made of gypsum board material is attached by adhering it to the adhesive (400). Then, the surface of the insulation material (200), the stepped groove (321) and through hole (33, 33') formed in the first plate (3a) and second plate (3b), and the small protrusions of the uneven portion (37) formed on the surface of the second plate (3b) are filled in, and the surface is cured in a state where it is connected without interruption, thereby increasing the adhesive bonding strength and allowing the finishing material (300) to be stably maintained in an attached state.

[0044] In addition, the present invention uses an auxiliary plate (6) in the shape of a circular or polygonal plate as shown in FIGS. 8 and 9 to compensate for the difference in distance between the head portion (3) of the fastener (1) and the finishing material (300) when the distance between the fastener (1) and the finishing material (300) is greater than that between the fastener (1) mounted in the surrounding area due to curvature (depression) of the wall (100), or when the adhesive (400) used to attach the finishing material (300) is a thin silicone rather than gypsum adhesive, thereby compensating for the difference in distance between the head portion (3) of the fastener (1) fixed to the wall (100) and the finishing material (300).

[0045] That is, the auxiliary plate (6) is held in place by a plurality of catch pieces (61) that flow into the open center (35) of the second plate (3b), and supplements the height by the spaced gap (H) between the finishing materials (300).

[0046] In particular, the above auxiliary plate (6) is structured to efficiently use a silicone material with a thin coating thickness when the adhesive (400) for attaching the finishing material (300) is silicone rather than ordinary gypsum bond. The applied silicone adhesive (400) flows into a plurality of first through holes (62) and fills the through holes (33') of the second plate (3b), flows into a plurality of second through holes (63) and fills the surface of the uneven portion (37) of the second plate (3b), and then is applied in a state of continuous connection to the surface of the first plate (3a) and the second plate (3b), the stepped groove (321) formed on the edge portion (32) of the first plate (3a), and the surrounding insulation material (200), and then cured to increase the adhesive bonding strength. In the groove portion formed by the rib (65) protruding from each corner portion, such as the edge portion (64), the first through hole (62), and the second through hole (63) Since the adhesive (400) for attaching the finishing material (30) is accepted, the finishing material (300) can be attached efficiently.

[0047] Although preferred embodiments of the present invention have been described and illustrated above, the invention is not limited to the configuration and operation as described and illustrated. Accordingly, those skilled in the art will understand that the above embodiments can be appropriately modified and altered, and therefore appropriate changes, modifications, and equivalents should be considered to be within the scope of the present invention. Explanation of the symbols

[0048] 1: Fastener 2: Support 21: Body 22: Socket 211: Female thread 212: Fixing hole 213: Stopper pin 221: Male screw 3: Head portion 3a: First plate 3b: Second plate 31: Through hole 32: Edge part 33: Through hole 34: Support 35: Center 36: Edge part 37: Irregular part 321: Step groove 31': Through hole 311: Obstacle Part 222: Live 4: Concrete nail 5: End cap 6: Auxiliary plate 61: Locking piece 62: 1st penetration hole 63: 2nd penetration hole 64: Edge 65: Rib 100: Wall 200: Insulation 300: Aesthetic material 400: Adhesive

Claims

Claim 1 The head portion (3) is formed by a first plate (3a) which is a plate-shaped member formed in a circular or polygonal shape, having a through hole (31) formed in the center and a plurality of catch pieces (311) protruding in the direction of the center from the circumference of the through hole (31), and a plurality of through holes (33) drilled around it to be in contact with and in close contact with the insulation material (200); the support portion (2) is formed by a body (21) that is vertically hollow and extends from the bottom surface of the through hole (31) of the first plate (3a), and a socket (22) formed such that the head of a concrete nail (4) driven into the wall (100) is caught on the inner tip, with the diameter extending in stages from the body (21) toward the tip; and a finishing cap (5) that is fitted and coupled to block the inflow of adhesive (400) into the through hole (31) of the head portion (3); A second plate (3b) for attaching a finishing material (300) is formed on the front surface of the first plate (3a) and connected to a plurality of protruding supports (34) to form a space into which an adhesive (400) can be introduced; the second plate (3b) has a center (35) open to pass through the through hole (31) of the first plate (3a), and a plurality of through holes (31') are formed between the center (35) and the edge (36) so that the adhesive (400) applied to attach the finishing material (300) can be introduced into the space between the supports (34) and the first plate (3a), thereby increasing the adhesive bonding strength of the adhesive (400); and an uneven surface (37) is formed on the surface of the second plate (3b) by a plurality of protruding small protrusions so that the finishing material (300) can be stably attached by increasing the adhesive bonding strength of the applied adhesive (400).In a fastener (1) for fixing insulation and finishing materials, the edge portion (36) of the second plate (3b) is formed such that the outer diameter is smaller than the edge portion (32) of the first plate (3a) to provide a tight space that allows the adhesive (400) to easily flow into the support (34) connecting the first plate (3a) and the second plate (3b) when applied, and the surface of the adhesive (400) is applied to the first plate (3a) and the second plate (3b) in a continuous state to increase the adhesive bonding strength of the adhesive (400), wherein the bottom edge portion (32) of the first plate (3a) that contacts the insulation material (200) is formed with a stepped groove (321) so that the adhesive (400) flows in and is applied continuously to the insulation material (200), the first plate (3a), and the second plate (3b) to increase mutual adhesive bonding strength. Fasteners for fixing insulation and finishing materials.; Claim 2 delete Claim 3 delete Claim 4 A fastener for fixing insulation and finishing materials according to claim 1, wherein a plurality of catch pieces (61) are formed that are inserted into the open center (35) of the second plate (3b) and have their lower ends caught, a plurality of first through holes (62) are formed that coincide with the through hole (33') of the second plate (3b), a plurality of second through holes (63) are formed that are perforated to communicate with the uneven portion (37) of the second plate (3b), and ribs (65) are formed protruding from each corner portion, such as the edge portion (64), the first through hole (62), and the second through hole (63), to form a groove for receiving the applied adhesive (400), and an auxiliary plate (6) in the shape of a plate that is circular or polygonal and is joined so that the bottom surface of the edge portion (64) contacts the front surface of the first plate (3a) to supplement the height by the spaced gap (H) between the finishing materials (300).

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