A double-slope roof enclosure structure with a ventilator and its construction method

Abstract

The present invention discloses a double-slope roof enclosure structure with a ventilator and its construction method, which includes a roof steel truss structure. A number of purlins are installed on the roof steel truss structure, multiple ribbed plates are installed on the purlins, a waterproof and heat-insulating board is installed on the multiple ribbed plates, and a roof panel is installed on the waterproof and heat-insulating board; a ridge connection structure is provided at the ridge, and a gutter is provided at the eaves. One end of the gutter is installed on the concrete parapet wall, and the other end of the gutter is installed on the purlin; a roof ventilator is also installed on the purlin. The bottom of the roof ventilator is installed on a ventilator support, and one end of the roof ventilator passes through the multiple ribbed plates, the waterproof and heat-insulating board and the roof panel to communicate with the outside. This enclosure structure has the functions of heat preservation and waterproofing, and seal treatment is carried out at the connected positions such as the connection between the roof ventilator and the roof steel truss structure, the ridge, the connection between the eaves and the gutter, and the connection between the gutter and the concrete wall. The sealing effect is good, the structure is simple, and the practicability is strong.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to a double-slope roof peripheral enclosure structure with a ventilator and a construction method thereof. Background Art

[0002] In recent years, considering time cost, labor cost, material cost, and the safety and stability of building structures during the building construction process, the building construction is no longer limited to the previous brick and tile structures, but a large number of corrosion-resistant metals are beginning to be used to build buildings. And when such metals are applied to buildings, the most commonly used is the metal roof. During construction, when the construction of the building exterior wall and the roof of the house is completed, a roofing or wall enclosure system usually needs to be made. This enclosure system usually has the functions of waterproofing, heat preservation, and decoration. Roof ventilators are usually installed on the roofs of some thermal power plant workshops. Sealing treatments are required at the ridge of the roof, the connection between the roof ventilator and the roof protection structure, the connection between the eaves and the gutter, and the connection between the gutter and the concrete wall. Poor sealing or sealing failure will cause roof leakage and affect the normal use of the building structure. Currently, during construction, the sealing treatment is mainly carried out through sealant or sealing strips. When the sealant falls off, the sealing fails and manual maintenance is required, increasing the maintenance cost. Summary of the Invention

[0003] The purpose of the present invention is to provide a double-slope roof peripheral enclosure structure with a ventilator. This enclosure structure has the functions of heat preservation and waterproofing, and sealing treatments are carried out at the connected positions such as the connection between the roof ventilator and the roof steel truss structure, the ridge of the roof, the connection between the eaves and the gutter, and the connection between the gutter and the concrete wall. The sealing effect is good, the structure is simple, and the practicability is strong.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A double-slope roof peripheral enclosure structure with a ventilator, comprising a roof steel truss structure, on which a number of purlins are installed, on which multi-ribbed plates are installed, on which a waterproof and heat-insulating board is installed, and a roof board is provided on the waterproof and heat-insulating board; a ridge connection structure is provided at the ridge, and the ridge connection structure consists of a ridge cover plate, heat-insulating cotton, a ridge plug and a ridge support plate. The ridge support plate is installed on the purlin, the ridge cover plate is installed on the roof board, the ridge plug is hermetically installed between the roof board and the ridge cover plate, and the heat-insulating cotton is filled between the ridge cover plate, the ridge plug and the waterproof and heat-insulating board; a gutter is provided at the eaves, one end of the gutter is installed on the concrete parapet wall, and a protective flashing is also hermetically installed on the concrete parapet wall. One end of the protective flashing overlaps in the gutter, the other end of the gutter is installed on the purlin, and an eaves edging board is installed on the roof board. One end of the eaves edging board overlaps in the gutter; it also includes a ridge and concrete wall connection structure, and the ridge and concrete wall connection structure includes an L-shaped parallel transition support, a cover plate, a lapping strip, a water-blocking support body and a transition flashing. The L-shaped parallel transition support is installed on the concrete wall, the cover plate is arranged at the joint gap between two adjacent L-shaped parallel transition supports, the lapping strip is arranged at the joint position between the ridge cover plate and the cover plate, the water-blocking support body is arranged on the ridge cover plate, one end of the transition flashing is installed on the roof board, and the other end is installed on the L-shaped parallel transition support; a roof ventilator is also installed on the purlin, the bottom of the roof ventilator is installed on the ventilator support, one end of the roof ventilator passes through the multi-ribbed plate, the waterproof and heat-insulating board and the roof board and is connected to the outside, and the roof ventilator is hermetically connected to the roof steel truss structure through a ventilator connection structure. The ventilator connection structure consists of an L-shaped reinforcing plate, a waterproof board, a rainwater diversion board, a Z-shaped support and a waterproof film layer. One end of the L-shaped reinforcing plate is installed on the ventilator support, the other end is installed on the waterproof and heat-insulating board, the rainwater diversion board is obliquely installed on the L-shaped reinforcing plate, the waterproof film layer is installed on the rainwater diversion board and the roof board, and the Z-shaped support is installed in the waterproof and heat-insulating board.

[0006] Preferably, the waterproof and heat-insulating board is composed of a vapor barrier layer, a heat-insulating cotton layer and a waterproof film layer, and the heat-insulating cotton layer is arranged between the vapor barrier layer and the waterproof film layer.

[0007] Preferably, the roof board is of a trough-shaped structure, and curling structures are provided at both ends of the roof board. The curling structures are installed on the purlin through fixing seats.

[0008] Preferably, the ridge support plate is of a left-right symmetric structure, and its symmetry center coincides with the ridge center line. Both ends of the ridge support plate are respectively installed on two purlins on both sides of the ridge.

[0009] Preferably, the ridge cover plate has a left - right symmetric structure, and its symmetric center coincides with the ridge center line. U - shaped ends are provided on both the left and right sides of the ridge cover plate.

[0010] Preferably, an installation groove is provided on the concrete parapet wall. One end of the protective flashing has an L - shaped connecting portion, and the L - shaped connecting portion is installed in the installation groove. A sealing and fixing block is also provided in the installation groove, and the sealing and fixing block can seal the L - shaped connecting portion in the installation groove; the other end of the protective flashing has a V - shaped waterproof portion, and the V - shaped waterproof portion is located below the connection point between the gutter and the concrete parapet wall.

[0011] Preferably, the transition flashing is installed on the L - shaped parallel transition support member through a transition support. The transition flashing is L - shaped. A U - shaped connecting portion is provided at one end of the transition flashing, and a U - shaped hanging portion is provided at one end of the transition support member. The U - shaped hanging portion is connected to the U - shaped connecting portion.

[0012] Preferably, the Z - shaped bracket is installed between the vapor barrier layer and the waterproof membrane layer, the L - shaped reinforcing plate is provided between the waterproof membrane layer and the thermal insulation cotton layer, and a Z - shaped protective flashing is provided between the roof panel and the waterproof membrane layer.

[0013] A construction method for the peripheral protection structure of a double - slope roof with a ventilator, the construction method includes the following steps:

[0014] Step 1, install the gutter at the eaves;

[0015] Step 2, lay the roof peripheral protection board;

[0016] Step 3, install the ridge structure;

[0017] Step 4, install the roof ventilator;

[0018] Specifically, for Step 1, install the gutter on the roof steel structure truss structure and purlins that have been constructed. Before installation, the gutter should be measured to ensure that the levelness and straightness of the gutter meet the installation standards at the eaves position. Finally, fix and install the other end of the gutter on the concrete parapet wall;

[0019] Specifically, for Step 2, first install the multi - ribbed plates on the purlins. Before installation, release the positioning plate border line first, and then install multiple multi - ribbed plates in sequence. When installing, lay a composite line every ten multi - ribbed plates to check the installation size deviation of the multi - ribbed plates, and adjust according to the actual size of the deviation. Lay the vapor barrier layer, thermal insulation cotton layer and waterproof membrane layer on the multi - ribbed plates in sequence to complete the laying of the waterproof and thermal insulation board. Then lay the roof panel on the waterproof and thermal insulation board, use the fixed support to fixedly connect the roof panel to the purlins, and perform edge - locking treatment on adjacent two roof panels;

[0020] Specifically, in the third step, place the ridge cover plate at the ridge position and use fasteners to fix the ridge cover plate on the roof panel. Install a ridge plug between the ridge cover plate and the roof panel to seal the opening between the ridge cover plate and the roof panel, and then seal the end of the ridge cover plate with the concrete wall.

[0021] Specifically, in the fourth step, first cut out a corresponding area on the roof panel according to the external dimensions of the roof ventilator, then install support channel steel on the roof panel, install the roof ventilator on the support channel steel, and finally seal the roof ventilator with the roof panel and the waterproof and thermal insulation board.

[0022] Preferably, in the second step, the vapor barrier layer and the waterproof membrane layer are reserved with a length of 150 mm to 300 mm at the eaves, and the reserved section is temporarily fixed at the eaves.

[0023] Preferably, when cutting the reserved position of the roof ventilator on the roof panel in the fourth step, an additional 260 mm to 320 mm should be cut on one side, and a rainwater diversion plate is installed at this place.

[0024] Preferably, the fasteners for fixing the support channel steel in the fourth step cannot be fixed on the purlin.

[0025] In the present invention, the provided waterproof and heat-insulating board is composed of three layers, namely a vapor barrier layer, a heat-insulating cotton layer, and a waterproof membrane layer. The vapor barrier layer and the heat-insulating cotton layer can prevent the hot or cold air inside the house from transferring outwards, having a good heat-insulating effect. The waterproof membrane layer has a good waterproof effect. The provided multi-ribbed plate provides a laying support surface for the waterproof and heat-insulating board, facilitating the laying construction of the waterproof and heat-insulating board. The provided ridge cover plate can connect the roof panels on both sides of the ridge, having good aesthetics. At the same time, the ridge cover plate can cover the connection position of the roof panels on both sides of the ridge, playing a waterproof role. The filled heat-insulating cotton layer plays a heat-insulating role on the one hand and can support the ridge cover plate on the other hand. Moreover, the heat-insulating cotton layer is light in weight and will not cause large deformation of the heat-insulating and waterproof board below it, thus affecting the heat-insulating effect. The provided ridge support plate can support the waterproof and heat-insulating board at the ridge. One end of the provided protective flashing is hermetically connected to the concrete parapet wall, and the protective cavity formed between its other end and the concrete parapet wall has good waterproofness, which can simplify the installation process of the gutter. One end of the provided eaves edging plate is installed inside the roof panel, and the other end is set at the connection position between the gutter and the roof steel truss structure. This eaves edging plate can protect the connection point between the gutter and the roof steel truss structure, simplifying the installation process of the gutter and the roof steel truss structure and improving its waterproofness. The provided L-shaped parallel transition support member provides a flat installation surface for this connection structure, facilitating the sealing treatment of this connection structure. The provided cover plate can block the gap between two L-shaped parallel transition support members and can also block the end of the ridge cover plate. The provided lapping strip can not only hermetically connect the ridge cover plate and the L-shaped parallel transition support member but also achieve the sealing connection between the end of the ridge cover plate and the cover plate. The provided transition connector can quickly connect the roof panel to the L-shaped parallel transition support member. The connection method of the used U-shaped hanging part and U-shaped connecting part facilitates the quick loading and unloading of the roof panel, improving the construction efficiency of its loading and unloading. The provided water baffle can protect the connection position between the ridge cover plate and the cover plate, preventing the rainwater from scouring this connection part for a long time and affecting the sealing effect, and improving the sealing life of this device. One end of the provided waterproof board is fixedly installed at the connection position between the roof ventilator and the ventilator support, and the other end is set inside the waterproof membrane layer, making the waterproof board hermetically connect the gap between the roof ventilator and the roof steel truss structure, having good waterproof effect. The provided L-shaped reinforcing plate is located inside the waterproof board, which can improve the connection stiffness of the waterproof board. The provided support plug can keep the end of the roof panel from deforming after connection, maintaining the consistency of its appearance and improving the aesthetics of the overall effect. The provided diagonal rainwater diversion plate can reduce the impact of rainwater on the waterproof board, thereby protecting the sealing of the connection of the waterproof board. Brief Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall construction process of the present invention;

[0027] Figure 2Schematic diagram of the overall structure of the present invention;

[0028] Figure 3 Schematic sectional view of the overall structure of the present invention;

[0029] Figure 4 Schematic diagram of the connection structure between the ridge and the concrete wall of the present invention;

[0030] Figure 5 Partial schematic diagram of the connection structure between the ridge and the concrete wall of the present invention;

[0031] Figure 6 Schematic diagram of the connection structure of the ventilator of the present invention;

[0032] Figure 7 For the present invention Figure 6 Enlarged partial structure schematic diagram of cross-section A in;

[0033] Figure 8 For the present invention Figure 6 Enlarged partial structure schematic diagram of cross-section B in;

[0034] Figure 9 Schematic diagram of the ridge connection structure of the present invention;

[0035] Figure 10 For the present invention Figure 9 Enlarged partial structure schematic diagram of cross-section C in;

[0036] Figure 11 Partial schematic diagram of the connection structure of the gutter of the present invention;

[0037] Figure 12 For the present invention Figure 11 Enlarged partial structure schematic diagram of cross-section D in;

[0038] In the figure: 1. Roof steel truss structure; 2. Purlin; 3. Multi-ribbed plate; 4. Waterproof and thermal insulation board; 5. Roof panel; 6. Fixed seat; 7. Ridge connection structure; 8. Connection structure between the ridge and the concrete wall; 9. Connection structure of the ventilator; 10. Gutter; 11. Concrete parapet wall; 12. Protective flashing; 13. Sealing and fixing block; 14. Eave edge closing plate; 15. Roof ventilator; 16. Ventilator support; 41. Vapor barrier layer; 42. Insulation cotton layer; 43. Waterproof membrane layer; 71. Ridge cover plate; 72. Insulation cotton; 73. Ridge plug; 74. Ridge support plate; 81. L-shaped parallel transition support; 82. Cover plate; 83. Lapping strip; 84. Water retaining support; 85. Transition flashing; 86. Transition support; 91. L-shaped reinforcement plate; 92. Waterproof plate; 93. Rainwater diversion plate; 94. Z-shaped support; 95. Waterproof adhesive membrane layer. Detailed implementation manners

[0039] The present invention will be further described below in conjunction with the accompanying drawings:

[0040] As Figures 2 to 12 shown, a double-slope roof enclosure structure with a ventilator includes a roof steel truss structure 1. A number of purlins 2 are fixedly installed on the roof steel truss structure 1 through fasteners. A multi-ribbed plate 3 is fixedly installed on the purlins 2 through fasteners. A waterproof and thermal insulation board 4 is fixedly installed on the multi-ribbed plate 3 through sealant. The waterproof and thermal insulation board 4 is composed of a vapor barrier layer 41, a thermal insulation cotton layer 42, and a waterproof membrane layer 43. The thermal insulation cotton layer 42 is arranged between the vapor barrier layer 41 and the waterproof membrane layer 43. The vapor barrier layer 41 is adhesively bonded to the multi-ribbed plate 3 through glue. A roof panel 5 is arranged above the waterproof and thermal insulation board 4. The roof panel 5 is a trough-shaped structure. Curl structures are arranged at both ends of the protruding parts of the roof panel 5. Adjacent two roof panels 5 are connected through the curl structure. After connection, the connection position is lock-seamed by a seaming machine to achieve the sealed connection of the two roof panels 5. The curl structure fixing seat 6 at the edge of the roof panel 5 is fixedly installed on the purlin 2. A Z-shaped protective flashing is arranged between the roof panel 5 and the waterproof membrane layer 43.

[0041] A ridge connection structure 7 is arranged at the ridge. The ridge connection structure 7 is composed of a ridge cover plate 71, thermal insulation cotton 72, a ridge plug 73, and a ridge support plate 74. The ridge support plate 74 is a left-right symmetric structure, and its symmetric center coincides with the ridge center line. Both ends of the ridge support plate 74 are fixedly installed on two purlins 2 on both sides of the ridge through fasteners. In one embodiment, the ridge support plate 74 is a structure with a ridge inclination angle formed by bending a metal plate along the ridge center line, which is mainly used to maintain the inclination angle and shape of the structure at the ridge. The ridge cover plate 71 is a left-right symmetric structure, and its symmetric center coincides with the ridge center line. U-shaped ends are arranged on both the left and right sides of the ridge cover plate 71, and the U-shaped ends are located below the connection points of the ridge cover plate 10 and the roof panel 5. In a preferred embodiment, a sealing connector is arranged at the connection of the ridge cover plate 10 and the roof panel 5. The sealing connector can be a rubber strip or a butyl tape. The sealed connection can seal the connection between the ridge cover plate 10 and the roof panel 5 to prevent water leakage at the connection position. The arranged U-shaped ends have a certain aesthetic property. The ridge plug 73 is hermetically installed at the gap between the roof panel 5 and the ridge cover plate 71 through sealant. In a specific embodiment, the outer shape of the ridge plug 73 is the same as the trough-shaped inner structure of the roof panel 5, and mounting planes are arranged at both the top and bottom of the ridge plug 73. The two mounting planes are fixedly connected to the roof panel 5 and the ridge plug 73 through fasteners or sealant. The thermal insulation cotton 72 is filled between the ridge cover plate 71, the ridge plug 73, and the waterproof and thermal insulation board 4. The thermal insulation cotton 72 plays a role in heat preservation on the one hand, and can support the ridge cover plate 71 on the other hand. Moreover, the quality of the thermal insulation cotton layer is relatively light, and it will not cause large deformation of the thermal insulation and waterproof board 4 below it to affect the heat preservation effect.

[0042] A gutter 10 is provided at the eaves position. In one embodiment, the gutter 10 is of a trough-like structure. One end of the gutter 10 is fixedly installed on the concrete parapet wall 11 through fasteners. A protective flashing 12 is also fixedly installed above the connection point between the gutter 10 and the concrete parapet wall 11. One end of the protective flashing 12 is provided with an L-shaped connecting portion. An installation groove is provided on the concrete parapet wall 2. The L-shaped connecting portion is fixedly installed in the installation groove through expansion bolts. A sealing and fixing block 13 is also provided in the installation groove. The sealing and fixing block 13 can seal the L-shaped connecting portion in the installation groove. In one embodiment, the sealing and fixing block 13 is composed of a waterproof mortar portion and a silicone sealing portion. The waterproof mortar portion can connect the L-shaped connecting portion and the installation groove again, improving the connection strength between the two, and can also prevent water from entering the installation groove and causing water leakage at the connection position between the two. The silicone sealing portion is arranged on the outer side of the waterproof mortar portion, which can further improve the waterproof effect. A V-shaped waterproof portion is provided at the other end of the protective flashing 12. In another embodiment, the shape of the V-shaped waterproof portion can also be U-shaped. The V-shaped waterproof portion is located on the lower side of the connection point between the gutter 10 and the concrete parapet wall 11. After the protective flashing 12 is connected to the concrete parapet wall 11, a downward-opening protective cavity is formed between the two. The connection point between the gutter 10 and the concrete parapet wall 11 is located in this protective cavity. The protective cavity has a good waterproof effect and can effectively waterproof the connection point between the gutter 10 and the concrete parapet wall 11. In a preferred embodiment, the inner side of the protective flashing 12 and the inner side of the top end of the gutter 1 can also be sealed and connected using a waterproof membrane to further increase the waterproof effect. The other end of the gutter 10 is fixedly installed on the purlin 2 through fasteners. An eaves edging plate 14 is fixedly installed on the roof panel 5 through fasteners or glue. A V-shaped waterproof edge is provided at the bottom of the eaves edging plate 14. In another embodiment, the shape of the V-shaped waterproof edge can also be U-shaped. The V-shaped waterproof edge is located inside the gutter 10. This V-shaped waterproof edge can provide a waterproof area for the sealed connection between the gutter 10 and the purlin 2, and can also simplify the structure of the gutter 10, facilitating the manufacture, installation, and disassembly of the gutter 10.

[0043] The double-slope roof peripheral enclosure structure with a ventilator further includes a ridge and concrete wall connection structure 8. The ridge and concrete wall connection structure 8 includes an L-shaped parallel transition support 81, a cover plate 82, a lapping strip 83, a water-blocking support body 84, and a transition flashing 85.

[0044] The L-shaped parallel transition support 81 is fixedly installed on the concrete wall. The L-shaped parallel transition supports 81 are provided on both sides of the ridge. There is a certain gap at the intersection of the two L-shaped parallel transition supports 81 at the ridge. A cover plate 82 is installed at this gap. The cover plate 82 can block the gap between the two L-shaped parallel transition supports 81. The end of the ridge cover plate 71 abuts against the cover plate 82, and the cover plate 82 can seal the end of the ridge cover plate 71. The end of the ridge cover plate 71 is hermetically connected to the cover plate 82 through a lapping strip 83. In one embodiment, the lapping strip 83 is composed of a butyl tape and a rubber strip. One side of the butyl tape is adhered to both sides of the connection gap between the ridge cover plate 71 and the cover plate 82, and the other side is adhered to the rubber strip. The lapping strip 83 is also fixedly connected to the ridge cover plate 71 again through fasteners to improve the connection stability. A water-blocking support 84 is also provided at the upper end of the connection position between the ridge cover plate 71 and the cover plate 82. In one embodiment, the water-blocking support 84 is an inverted U-shaped structure. The bottom of the protruding parts at both ends of the water-blocking support 84 is fixedly connected to the ridge cover plate 71 through fasteners. It also includes a transition flashing 85. In one embodiment, the transition flashing 85 is integrally L-shaped. One end of the transition flashing 85 is hermetically installed on the upper surface of the roof panel 5 through a sealant. A U-shaped connection part is provided at the top of the other end of the transition flashing 85. A transition support 86 is fixedly installed on the L-shaped parallel transition support 81 through fasteners. A U-shaped hanging part is provided at one end of the transition support 86. The U-shaped hanging part is connected to the U-shaped connection part. Adopting this connection method can simplify the installation method of the transition flashing 85 and facilitate disassembly.

[0045] A roof ventilator 15 is also fixedly installed on the purlin 2. The bottom of the roof ventilator 15 is fixedly installed on the ventilator bracket 16 through fasteners. The ventilator bracket 16 is fixedly installed on the purlin 2 through fasteners. The top end of the roof ventilator 15 passes through the multi-ribbed plate 3, the waterproof and heat-insulating board 4 and the roof panel 5 and is connected to the outside. The roof ventilator 15 can realize the replacement of the air inside the building house and the outside air.

[0046] The roof ventilator 15 is hermetically connected to the roof steel truss structure 1 through a ventilator connection structure 9. The ventilator connection structure 9 includes an L-shaped reinforcing plate 91, a waterproof plate 92, a rainwater diversion plate 93, a Z-shaped bracket 94 and a waterproof film layer 95.

[0047] One end of the L-shaped reinforcing plate 91 is fixedly installed on the ventilator bracket 16 through a fastener, and the other end thereof is arranged on the Z-shaped bracket 94. In a preferred embodiment, the end of the L-shaped reinforcing plate 91 arranged on the Z-shaped bracket 94 is clamped between the waterproof membrane layer 43 and the thermal insulation cotton layer 42. The Z-shaped bracket 94 is installed between the vapor barrier layer 41 and the waterproof membrane layer 43. The top surface of the Z-shaped bracket 94 can support the L-shaped reinforcing plate 91 to prevent it from squeezing the thermal insulation cotton layer 42 and causing deformation of the thermal insulation cotton layer 42. In a more preferred embodiment, the waterproof membrane layer 43 and the L-shaped reinforcing plate 91 can be fixedly connected through sealant. A waterproof plate 92 is also fixedly installed on the L-shaped reinforcing plate 91. One end of the waterproof plate 92 is fixedly connected to the ventilator bracket 16 through a fastener, and the connection part is sealed with a rubber pad or sealant. In one embodiment, the waterproof plate 92 and the roof ventilator 15 are fixedly connected to the ventilator bracket 16 using the same fastener. The other end of the waterproof plate 92 is arranged between the roof panel 5 and the waterproof membrane layer 43. A rainwater diversion plate 93 is fixedly installed on the waterproof plate 92 through a fastener, and the fastener used for installing the rainwater diversion plate 93 is sealed with a gasket. A waterproof adhesive film layer 95 is arranged on the outer side of the rainwater diversion plate 93. The waterproof adhesive film layer 95 is adhesively bonded to the waterproof plate 92, the rainwater diversion plate 93 and the roof panel 5 through glue. The waterproof adhesive film layer 95 can seal between the roof panel 5 and the waterproof plate 92, so that the connection structure has double-layer sealing and improves the waterproof performance.

[0048] As Figures 1 to 12 shown, a construction method of a double-slope roof peripheral protection structure with a ventilator includes the following steps:

[0049] Step 1: Install the gutter 10 at the eaves on both sides of the roof steel structure truss structure 1 and the purlin 2 that have been constructed. Before installing the gutter 10, the gutter 10 should be measured to ensure that the levelness and straightness of the gutter 10 meet the installation standards at the eaves position. The setting out of the gutter 10 must be at the same elevation as the roof panel 5 at the gutter 10 position. Install the two ends of the gutter 10 on the concrete parapet wall 11 and the purlin 2 respectively, and seal the connection parts between the gutter 10 and the concrete parapet wall 11 and the purlin 2. The gutter 10 used is made of stainless steel material. The two adjacent gutters 10 are connected by welding, and the welds need to be polished smooth and clean. After the gutter 10 is installed, a water tightness test needs to be carried out. When carrying out the water tightness test, the gutter 10 should be filled with water up to 2 / 3 of the maximum water volume of the gutter 10, and the water tightness should reach more than 48 hours. After the gutter 10 is filled with water, the bottom of the gutter 10 should be comprehensively inspected immediately until there is no leakage for 48 hours.

[0050] Step 2: Laying the roof outer enclosure panels. First, install the multi-ribbed plates 3 on the purlins 2. Before installation, lay out the edge line of the positioning plate to avoid large cumulative installation errors. Then, install multiple multi-ribbed plates 3 in sequence by lapping. When installing, lay a compound line every ten multi-ribbed plates 3 to check the installation dimension deviation of the multi-ribbed plates 3 and make real-time adjustments according to the actual size of the deviation. After the multi-ribbed plates 3 are laid, first lay a layer of vapor barrier layer 41 on them. During specific construction, lay it by lapping from the lowest part of the roof upwards, leave a reserved length of 150 mm - 300 mm at the eaves, and temporarily fix this reserved section at the eaves. When two adjacent vapor barrier layers 41 are lapped, the construction should follow the principle of "for the lap joint parallel to the ridge direction, it should be lapped along the water flow direction; for the lap joint perpendicular to the ridge direction, it should be lapped along the direction of the maximum annual frequency wind". When laying the vapor barrier layer 41, the starting and ending points should be fully pasted and fixed with butyl tape. When laying the insulation cotton layer 42, it should be ensured that it is laid flat, without warping edges, without folding, and the joints are tight. The laying thickness is between 70 mm and 80 mm. In a specific embodiment, the laying thickness of 75 mm is the best. The laying steps and requirements of the waterproof membrane layer 43 are the same as those of the vapor barrier layer 41 and will not be repeated here. Finally, lay the roof panel 5 on the waterproof and insulation board 4, use fixed supports to fixedly connect the roof panel 5 to the purlins 2, and perform edge locking treatment on two adjacent roof panels 5. Leave a gap of about 50 mm at the intersection of the roof panels 5 on both sides of the ridge.

[0051] Step 3: Installation of the ridge structure. Place the ridge cover plate 71 at the ridge position and use fasteners to fix the ridge cover plate 71 on the roof panel 5. Through the ridge connection structure 7, seal and thermally insulate the roof panels 5 on both sides of the ridge. Seal and install a ridge plug 73 between the ridge cover plate 71 and the roof panel 5, which can seal the opening between the ridge cover plate 71 and the roof panel 5. Finally, use the ridge and concrete wall connection structure 8 to seal the end of the ridge cover plate 71 with the concrete wall.

[0052] Step 4: Installation of the roof ventilator 15. First, cut out a corresponding area on the roof panel 5 according to the outer dimension of the roof ventilator 15. In one embodiment, when cutting the reserved position of the roof ventilator 15 on the roof panel 5, it is necessary to cut 260 mm - 320 mm more on one side, and install a rainwater diversion plate 93 at this place. Then, install support channel steels on the roof panel 5. In a specific embodiment, install three support channel steels, two of which are along the ridge direction, and the other support channel steel overlaps on the previous two support channel steels. Fix the roof ventilator 15 on the support channel steels. The fasteners for fixing the support channel steels cannot be fixed on the purlins 2 to avoid affecting the thermal expansion and contraction of the roof panel 5. Finally, use the ventilator connection structure 9 to seal the roof ventilator 15 between the roof panel 5 and the waterproof and insulation board 4.

[0053] The above embodiments are only several illustrations of the concept and implementation of the present invention and do not limit it. Under the concept of the present invention, technical solutions without substantial transformation are still within the scope of protection.

Claims

1. A double-slope roof enclosure structure with a ventilator, comprising a roof steel truss structure, on which a number of purlins are installed, characterized in that: Multiple ribbed plates are installed on the purlins, and a waterproof and heat-insulating board is installed on the multiple ribbed plates. A roof panel is provided on the waterproof and heat-insulating board; a ridge connection structure is provided at the ridge. The ridge connection structure includes a ridge cover plate, heat-insulating cotton, a ridge plug and a ridge support plate. The ridge support plate is installed on the purlin, the ridge cover plate is installed on the roof panel, the ridge plug is hermetically installed between the roof panel and the ridge cover plate, and the heat-insulating cotton is filled between the ridge cover plate, the ridge plug and the waterproof and heat-insulating board; a gutter is provided at the eaves. One end of the gutter is installed on the concrete parapet wall, and a protective flashing is also hermetically installed on the concrete parapet wall. One end of the protective flashing overlaps in the gutter, the other end of the gutter is installed on the purlin, and an eaves edging plate is installed on the roof panel. One end of the eaves edging plate overlaps in the gutter; the double-slope roof enclosure structure with a ventilator further includes a ridge and concrete wall connection structure. The ridge and concrete wall connection structure includes an L-shaped parallel transition support, a cover plate, a lapping strip, a water-blocking support body and a transition flashing. The L-shaped parallel transition support is installed on the concrete wall, the cover plate is arranged at the joint gap between two adjacent L-shaped parallel transition supports, the lapping strip is arranged at the joint position between the ridge cover plate and the cover plate, the water-blocking support body is arranged on the ridge cover plate, one end of the transition flashing is installed on the roof panel, and the other end is installed on the L-shaped parallel transition support; a roof ventilator is also installed on the purlin. The bottom of the roof ventilator is installed on the ventilator support. One end of the roof ventilator passes through the multiple ribbed plates, the waterproof and heat-insulating board and the roof panel to communicate with the outside. The roof ventilator is hermetically connected to the roof steel truss structure through a ventilator connection structure. The ventilator connection structure includes an L-shaped reinforcing plate, a waterproof board, a rainwater diversion board, a Z-shaped bracket and a waterproof film layer. One end of the L-shaped reinforcing plate is installed on the ventilator support, and the other end is installed on the waterproof and heat-insulating board. The rainwater diversion board is obliquely installed on the L-shaped reinforcing plate. The waterproof film layer is installed on the rainwater diversion board and the roof panel. The Z-shaped bracket is installed in the waterproof and heat-insulating board. The transition flashing is installed on the L-shaped parallel transition support through a transition support. The transition flashing is L-shaped. A U-shaped connection part is provided at one end of the transition flashing, and a U-shaped hanging part is provided at one end of the transition support. The U-shaped hanging part is connected to the U-shaped connection part; the waterproof and heat-insulating board is composed of a vapor barrier layer, a heat-insulating cotton layer and a waterproof film layer. The heat-insulating cotton layer is arranged between the vapor barrier layer and the waterproof film layer; the Z-shaped bracket is installed between the vapor barrier layer and the waterproof film layer, the L-shaped reinforcing plate is arranged between the waterproof film layer and the heat-insulating cotton layer, and a Z-shaped protective flashing is provided between the roof panel and the waterproof film layer.

2. The double-slope roof enclosure structure with a ventilator according to claim 1, characterized in that: The roof panel is of a trough-shaped structure, and curling structures are provided at both ends of the roof panel. The curling structures are installed on the purlins through fixing seats.

3. The double-slope roof envelope structure with a ventilator according to claim 1, characterized in that: The ridge support plate is of a left-right symmetric structure, and its symmetry center coincides with the ridge center line. The two ends of the ridge support plate are respectively installed on two purlins on both sides of the ridge.

4. The double-slope roof enclosure structure with a ventilator according to claim 1, characterized in that: The ridge cover plate has a left-right symmetric structure, and its center of symmetry coincides with the ridge center line. U-shaped ends are provided on both the left and right sides of the ridge cover plate.

5. The double-slope roof enclosure structure with a ventilator according to claim 1, characterized in that: An installation groove is provided on the concrete parapet wall. One end of the protective flashing plate is provided with an L-shaped connecting portion, and the L-shaped connecting portion is installed in the installation groove. A sealing and fixing block is further provided in the installation groove, and the sealing and fixing block can seal the L-shaped connecting portion in the installation groove; the other end of the protective flashing plate is provided with a V-shaped waterproof portion, and the V-shaped waterproof portion is located below the connection point between the gutter and the concrete parapet wall.

6. A construction method for the double-slope roof enclosure structure with a ventilator according to any one of claims 1 to 5, characterized in that: The construction method includes the following steps: Step 1, install the gutter at the eaves; Step 2, lay the peripheral roof sheathing; Step 3, install the ridge structure; Step 4, install the roof ventilator. Specifically, in Step 1, install the gutter on the roof steel structure truss structure and purlins that have been constructed. Before installation, the gutter should be measured to ensure that the levelness and straightness of the gutter meet the installation standards at the eaves position. Finally, fix the other end of the gutter on the concrete parapet wall. Specifically, in Step 2, first install the multi-ribbed plates on the purlins. Before installation, release the border line of the positioning plate, and then lap and install multiple multi-ribbed plates in sequence. When installing, place a composite line every ten multi-ribbed plates to composite the installation dimension deviation of the multi-ribbed plates and adjust according to the actual size of the deviation. Lay the vapor barrier layer, insulation cotton layer, and waterproof membrane layer on the multi-ribbed plates in sequence to complete the laying of the waterproof and thermal insulation board. Then lay the roof panel on the waterproof and thermal insulation board, use the fixed supports to fix the roof panel to the purlins, and lock the adjacent two roof panels. Specifically, in Step 3, place the ridge cover plate at the ridge position and use fasteners to fix the ridge cover plate on the roof panel. Install the ridge plug between the ridge cover plate and the roof panel to seal the opening between the ridge cover plate and the roof panel, and then seal the end of the ridge cover plate with the concrete wall. Specifically, in Step 4, first cut out a corresponding area on the roof panel according to the external dimension of the roof ventilator, then install the support channel steel on the roof panel, install the roof ventilator on the support channel steel, and finally seal the roof ventilator with the roof panel and the waterproof and thermal insulation board.

7. The construction method of the double-slope roof enclosure structure with a ventilator according to claim 6, characterized in that: In Step 2, the vapor barrier layer and the waterproof membrane layer reserve a length of 150 mm - 300 mm at the eaves, and the reserved section is temporarily fixed at the eaves.

8. The construction method of the double-slope roof enclosure structure with a ventilator according to claim 7, characterized in that: When cutting the reserved position of the roof ventilator on the roof panel in Step 4, an additional 260 mm - 320 mm needs to be cut on one side, and a rainwater diversion plate is installed at this place.

9. The construction method of the double-slope roof enclosure structure with a ventilator according to claim 8, characterized in that: The fasteners for fixing the support channel steel in Step 4 cannot be fixed on the purlins.

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