CN111042420A - Roof construction process for light steel villa - Google Patents
Roof construction process for light steel villa Download PDFInfo
- Publication number
- CN111042420A CN111042420A CN201911337559.2A CN201911337559A CN111042420A CN 111042420 A CN111042420 A CN 111042420A CN 201911337559 A CN201911337559 A CN 201911337559A CN 111042420 A CN111042420 A CN 111042420A
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- Prior art keywords
- roof
- truss
- coiled material
- light steel
- construction process
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- 238000010276 construction Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 93
- 238000009434 installation Methods 0.000 claims abstract description 12
- 229920000742 Cotton Polymers 0.000 claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010426 asphalt Substances 0.000 claims description 19
- 239000010440 gypsum Substances 0.000 claims description 14
- 229910052602 gypsum Inorganic materials 0.000 claims description 14
- 238000010079 rubber tapping Methods 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 230000008602 contraction Effects 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000004831 Hot glue Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 3
- 239000013521 mastic Substances 0.000 claims description 3
- 229920001059 synthetic polymer Polymers 0.000 claims description 3
- 230000037303 wrinkles Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
- E04B7/022—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs consisting of a plurality of parallel similar trusses or portal frames
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
- E04B7/04—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs supported by horizontal beams or the equivalent resting on the walls
- E04B7/045—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs supported by horizontal beams or the equivalent resting on the walls with connectors made of sheet metal for connecting the roof structure to the supporting wall
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
- E04D13/143—Junctions of roof sheathings to chimneys or other parts extending above the roof with ventilating means in junctions of roof sheathings to parts extending above the roof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D15/00—Apparatus or tools for roof working
- E04D15/06—Apparatus or tools for roof working for handling roofing or sealing material in roll form
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/36—Connecting; Fastening
- E04D3/3605—Connecting; Fastening of roof covering supported directly by the roof structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The invention relates to a roof construction process of a light steel villa, which comprises the following steps of splicing a truss; secondly, transporting the truss; step three, plane inspection and measurement paying-off; fourthly, mounting the roof truss and the wall connecting piece; fifthly, mounting the cornice and the cabin ridge plate; sixthly, mounting the roof panel; step seven, paving waterproof coiled materials; step eight, constructing a roof ventilation pipe; ninth, gutter water falling construction; step ten, laying roof tiles; eleventh, constructing heat-insulating soundproof cotton for the roof; and twelfth, constructing an inner roof of the roof. The invention has the advantages of short construction period, convenient installation, light self weight of the roof structure and good waterproof performance.
Description
Technical Field
The invention relates to the technical field of light steel villa construction, in particular to a roof construction process of a light steel villa.
Background
The main material of the light steel villa, also called light steel structure house, is a light steel keel synthesized by hot-dip galvanized aluminum steel strip through cold rolling technology. Roof truss is assembled by various light steel component parts and is formed in the roofing system of light steel villa, generally has triangle roof truss and T shape roof truss, can easily realize various complicated roofing molding in a flexible way, and general roofing adopts colorful asphalt shingle, possesses good rain-proof, resistant time, function such as thermal-insulated, can realize abundant diversified molding, and the design of ventilation cycle keeps the air fresh constantly.
The existing light steel structure building is usually formed by filling a light steel integrated frame with precast concrete components, has the advantages of light weight, convenient installation and disassembly, capability of being repeatedly used and the like, but also has the defects of poor heat insulation effect, poor waterproof performance and the like, and particularly the roof structure of the light steel structure needs to further improve the waterproof performance.
Disclosure of Invention
The invention aims to provide a roof construction process for a light steel villa, which has the advantages of short construction period, convenient installation, light self weight of a roof structure and good waterproof performance.
The above object of the present invention is achieved by the following technical solutions:
a roof construction process of a light steel villa comprises the following steps:
step one, truss splicing
(1) Setting a working platform, leveling the working platform, fixing the working platform and keeping the working platform horizontal;
(2) placing the members for splicing the truss on a working platform, enabling the gravity center lines of the members to be on the same horizontal plane, wherein the error is not more than 3mm, placing the chord members of the roof truss in sequence when splicing the roof truss, then placing the web members of the roof truss on the chord members of the roof truss one by one, and then fixedly connecting the members by using screws;
step two, truss transportation
After the roof trusses are connected, the trusses are transported to a construction site for standby application, and the deformation of the rod pieces caused by collision is avoided as much as possible in the process of carrying the roof trusses, and if the deformation occurs, the deformation is corrected in time;
step three, plane inspection and measurement pay-off
Before the roof truss is installed, whether openings such as an upper population, a flue and the like exist in the plane of the roof truss is checked, and a truss positioning line on a construction drawing is lofted on a guide rail at the top of a lower wall body;
step four, mounting the roof truss and the wall connecting piece
Installing a truss according to the lofting position and connecting the truss with a wall to finish the installation of the roof truss;
fifthly, mounting the cornice and the cabin ridge plate
Installing a cornice component, and then installing a cornice edge wrapping plate and a cabin ridge plate;
sixthly, mounting the roof panel
The roof structure panel adopts an OSB plate, and the roof plate is connected with the roof truss by adopting a screw;
seventhly, laying waterproof coiled materials
(1) After the roof OSB board is installed, laying a roof waterproof coiled material, wherein the waterproof coiled material is an asphalt waterproof coiled material, and melting hot melt adhesive at the bottom of the waterproof coiled material by using a flame heater for adhering;
(2) the direction of the coiled material should meet the following regulations
a, paving and pasting coiled materials parallel to a roof ridge, wherein the slope of the roof is less than 3%;
b, when the slope of the roof is 3% -15%, the coiled materials can be paved and pasted in parallel or perpendicular to the roof ridge;
c, when the slope of the roof is more than 15% or the roof is vibrated, the asphalt waterproof coiled material is paved and pasted vertically to the roof ridge, and the high polymer modified asphalt waterproof coiled material and the synthetic polymer waterproof coiled material can be paved and pasted vertically or in parallel to the roof ridge;
(3) when the lapping method is adopted for paving and pasting the coiled materials, the lapping seams of the upper and lower layers and two adjacent coiled materials are staggered;
(4) the hot-melting method for paving and pasting the coiled material meets the following regulations
a, a flame heater is used for heating the coiled material uniformly, the coiled material is not required to be heated or burnt through, and the high polymer modified asphalt waterproof coiled material with the thickness less than 3mm is strictly constructed by a hot melting method;
b, immediately rolling and paving the coiled material after the surface of the coiled material is hot-melted, exhausting air below the coiled material, and firmly rolling and bonding without hollowing;
c, hot-melt modified asphalt mastic is required to overflow from the seam position of the coiled material;
d, the coiled material paved and pasted is smooth and straight, the lapping size is accurate, and the coiled material cannot be twisted or wrinkled;
step eight, roof ventilation pipe construction
After the roof waterproof is finished, installing a roof vent pipe, wherein the root of the vent pipe needs to be sealed by using sealing paste;
step nine, gutter water falling construction
The assembled type gutter is adopted, construction is carried out according to the falling slope of the gutter, the contraction joint and the gutter falling door do not need glue, the assembly is carried out according to the material temperature during the assembly, and the contraction joint is added when the length of the gutter exceeds 10 m;
step ten, laying roof tiles
Laying roof tiles on the surface of the waterproof roll from top to bottom;
eleventh step, constructing heat-insulating soundproof cotton for roof
Filling heat insulation cotton in the roof truss, wherein no gap is formed between the heat insulation cotton in the wall body, and the roof truss is completely filled;
twelve steps, roof inner top plate construction
Adopt the individual layer gypsum board, the gypsum board should adopt the screw connection with the roof truss.
By adopting the technical scheme and the construction method, the construction period is short, the installation is convenient, the self weight of the roof structure is light, the sealing performance of the waterproof coiled material paved on the secondary roof and the roof panel is strong, the connection is firm, and the waterproof performance is good.
The invention is further configured to: seventhly, the asphalt waterproof coiled material is free from holes, wrinkles, cracks, splits and edges and is not coated uniformly; when the coiled material is used as a waterproof layer on a roof with the gradient of more than 25 percent, a fixing measure is adopted, and the fixing point is tightly sealed.
Through adopting above-mentioned technical scheme, can avoid waterproofing membrane to slide from the roofing to guarantee waterproofing membrane's firm laying.
The invention is further configured to: seventhly, before the roof waterproof layer is laid, the base layer needs to be cleaned and dried;
the method for identifying the drying degree comprises the steps of flatly and dryly paving 1m2 coiled materials on a leveling layer, standing for 3-4h, then lifting and checking, and paving the coiled materials without watermarks on the covering part of the leveling layer and the coiled materials.
Through adopting above-mentioned technical scheme, clean before laying the roofing waterproof layer to detect the dry degree of basic unit and can be convenient for firmly laying of follow-up waterproof layer, guarantee waterproof layer and basic unit's joint strength and leakproofness, guarantee water-proof effects.
The invention is further configured to: sixthly, the distance between the edge of the roof panel and the self-tapping screws at the joint is not more than 150mm, the distance between the self-tapping screws inside the roof panel is not more than 250mm, the distance between the screws and the edge of the roof panel is not less than 12mm, the gap between the roof panels is controlled to be 4mm, the surface texture of the roof panel is perpendicular to the length direction of the upper chord of the truss, and the size of each oriented strand board is not less than 610mm multiplied by 610mm when the oriented strand board is used as a roof.
By adopting the technical scheme, the connection strength of the roof panel and the roof truss can be ensured, gaps on the surface of the roof panel are reduced, and the leakage probability is reduced.
The invention is further configured to: when the roof OSB plate is installed, because the roof has a slope, the roof is installed in a direction of the slope, the roof is installed from bottom to top, meanwhile, in order to guarantee the safety of constructors, the safety belt is tied when the roof plate is installed, and pedals protruding out of the roof plate are arranged on the roof plate at intervals along the horizontal direction.
Through adopting above-mentioned technical scheme, by supreme the construction of being convenient for of laying down when laying the roof boarding, set up the safety belt and can avoid constructor to drop from the roof, the footboard of setting can be convenient for constructor's underfooting helping hand again, prevents to slip, protects constructor's safety.
The invention is further configured to: and step four, when the truss is installed, checking the verticality, the lateral bending rise deviation, the flatness of the upper chord and the ridge of the roof truss, the levelness of the cornice and the like of the truss, and ensuring that the installation deviation of all the trusses meets the requirements.
By adopting the technical scheme, the quality of the roof truss after installation can be further ensured, and the overall construction quality is ensured.
The invention is further configured to: and step four, when the roof truss is connected with the wall body, the temporary support and the cable are used for temporarily fixing the position near the middle part of the truss, so that instability in the construction process is prevented, and the temporary support cannot be detached before the support member between the roof structural plate and the roof truss is installed.
By adopting the technical scheme, the stability of the roof truss can be ensured by adopting the supporting system, and the construction safety is ensured.
The invention is further configured to: the position of the roof truss supporting system is determined according to the span of the roof truss, and when the span of the roof truss is not more than 2 meters, the supporting system is not arranged; when the span is 2-4 m, a support system is arranged in the middle; when the span is 4-6 m, a support system is respectively arranged at 1/3 and 2/3; when the span is larger than 6 meters, a support system is arranged every 2 meters.
By adopting the technical scheme, the supporting system can ensure the safety and stability of construction and ensure the normal operation of construction.
The invention is further configured to: and step five, after the trusses and the cornices are installed, bending the cornice edge-wrapping plates or the small roof ridge plates into angles matched with the gradient of the cornice or the roof by using wide and flat steel belts, continuously paving the cornice or the roof with roof gutters along the cornices or the roofs, and fixing the cornice or the trusses with the cornices or the trusses by using screws.
The invention is further configured to: and step twelve, the distance between the side part of the gypsum board and the screw at the joint is not more than 150mm, the distance between the screws in the gypsum board is not more than 300mm, and the gap between the gypsum boards is not more than 2 mm.
Through adopting above-mentioned technical scheme, guarantee between the adjacent gypsum board and the firm connection of gypsum board and roof truss, guarantee to lay intensity.
In conclusion, the beneficial technical effects of the invention are as follows:
1. by adopting the construction method, the construction period is short, the installation is convenient, the self weight of the roof structure is light, the sealing performance between the waterproof coiled material paved on the secondary roof and the roof panel is strong, the connection is firm, and the waterproof performance is good;
2. the waterproof coiled material can be prevented from sliding from the roof, so that the waterproof coiled material is ensured to be firmly laid;
3. the waterproof layer is cleaned before being laid, the dryness degree of the base layer is detected, so that the subsequent waterproof layer can be conveniently and firmly laid, the connection strength and the sealing property of the waterproof layer and the base layer are ensured, and the waterproof effect is ensured.
Detailed Description
The present invention will be described in further detail below.
The invention discloses a roof construction process of a light steel villa, which is characterized by comprising the following steps:
step one, truss splicing
(1) Setting a working platform, leveling the working platform, fixing the working platform and keeping the working platform horizontal;
(2) placing the members for splicing the truss on a working platform, enabling the gravity center lines of the members to be on the same horizontal plane, wherein the error is not more than 3mm, placing the chord members of the roof truss in sequence when splicing the roof truss, then placing the web members of the roof truss on the chord members of the roof truss one by one, and then fixedly connecting the members by using screws;
step two, truss transportation
After the roof trusses are connected, the trusses are transported to a construction site for standby application, and the deformation of the rod pieces caused by collision is avoided as much as possible in the process of carrying the roof trusses, and if the deformation occurs, the deformation is corrected in time;
step three, plane inspection and measurement pay-off
Before the roof truss is installed, whether openings such as an upper population, a flue and the like exist in the plane of the roof truss is checked, and a truss positioning line on a construction drawing is lofted on a guide rail at the top of a lower wall body;
step four, mounting the roof truss and the wall connecting piece
(1) When the truss is installed, the verticality, the lateral bending rise deviation, the flatness of an upper chord and a ridge of the roof truss, the levelness of a cornice and the like of the truss are checked, and all the installation deviations of the truss are ensured to meet the requirements of the acceptance regulation for the construction quality of low-layer cold-bending thin-walled steel structure engineering;
(2) when the roof truss is connected with the wall body, the temporary support and the mooring rope are used for temporarily fixing the position near the middle part of the truss, so that instability in the construction process is prevented, and the temporary support cannot be detached before the support member between the roof structure plate and the roof truss is installed;
(3) the position of the roof truss supporting system is determined according to the span of the roof truss, and when the span of the roof truss is not more than 2 meters, the supporting system is not arranged; when the span is 2-4 m, a support system is arranged in the middle; when the span is 4-6 m, a support system is respectively arranged at 1/3 and 2/3; when the span is larger than 6 meters, arranging a support system every 2 meters;
(4) installing a truss according to the lofting position and connecting the truss with a wall to finish the installation of the roof truss;
fifthly, mounting the cornice and the cabin ridge plate
Installing a cornice component, then installing a cornice edge covering plate and a cabin ridge plate, after the trusses and the cornices are installed, bending the cornice edge covering plate or the cabin ridge plate into an angle matched with the gradient of the cornice or the roof by using a wide and flat steel belt with the thickness of 1mm, continuously paving the cornice or the roof including a roof gutter along the cornice or the roof ridge, and fixing the cornice or the trusses by using 2 screws;
sixthly, mounting the roof panel
(1) The roof structure panel adopts a 15mm thick Oriented Strand Board (OSB) which is a structural oriented strand board, and the roof panel and the roof truss are connected by self-drilling and self-tapping screws;
(2) the distance between the edge of the roof panel and the self-tapping screw at the joint is not more than 150mm, the distance between the internal self-tapping screw and the edge of the roof panel is not more than 250mm, the distance between the screw and the edge of the roof panel is not less than 12mm, the gap between the roof panels is controlled at 4mm, the surface texture of the roof panel is vertical to the length direction of the upper chord of the truss, and the size of each oriented strand board is not less than 610mm multiplied by 610mm when the oriented strand board is used as a roof;
(3) when the roof OSB plate is installed, the roof is installed in different directions due to the slope of the roof, and the roof is installed from bottom to top;
seventhly, laying waterproof coiled materials
(1) After the roof OSB board is installed, laying a roof waterproof coiled material, wherein the waterproof coiled material is an asphalt waterproof coiled material, and melting hot melt adhesive at the bottom of the waterproof coiled material by using a flame heater for adhering;
(2) the asphalt waterproof coiled material has the appearance without holes, wrinkles, creases, cracks, edges and uneven coating; when the coiled material is used as a waterproof layer on the roof with the gradient of more than 25 percent, a fixing measure is adopted, and the fixing point is tightly sealed;
(3) before laying a roof waterproof layer, a base layer must be cleaned and dried; the method for identifying the drying degree comprises the steps of flatly and dryly paving 1m2 coiled materials on a leveling layer, standing for 3-4h, then lifting and checking, and paving the coiled materials without watermarks on the covering part of the leveling layer and the coiled materials;
(4) the direction of the coiled material should meet the following regulations
a, paving and pasting coiled materials parallel to a roof ridge, wherein the slope of the roof is less than 3%;
b, when the slope of the roof is 3% -15%, the coiled materials can be paved and pasted in parallel or perpendicular to the roof ridge;
c, when the slope of the roof is more than 15% or the roof is vibrated, the asphalt waterproof coiled material is paved and pasted vertically to the roof ridge, and the high polymer modified asphalt waterproof coiled material and the synthetic polymer waterproof coiled material can be paved and pasted vertically or in parallel to the roof ridge;
(5) when the lapping method is adopted for paving and pasting the coiled materials, the lapping seams of the upper and lower layers and two adjacent coiled materials are staggered;
(6) the hot-melting method for paving and pasting the coiled material meets the following regulations
a, a flame heater is used for heating the coiled material uniformly, the coiled material is not required to be heated or burnt through, and the high polymer modified asphalt waterproof coiled material with the thickness less than 3mm is strictly constructed by a hot melting method;
b, immediately rolling and paving the coiled material after the surface of the coiled material is hot-melted, exhausting air below the coiled material, and firmly rolling and bonding without hollowing;
c, hot-melt modified asphalt mastic is required to overflow from the seam position of the coiled material;
d, the coiled material paved and pasted is smooth and straight, the lapping size is accurate, and the coiled material cannot be twisted or wrinkled;
step eight, roof ventilation pipe construction
Mounting a roof vent pipe after the roof waterproof is finished, drilling by using a nondestructive tapping machine, and placing the vent pipe, wherein the root of the vent pipe needs to be sealed by using sealing paste;
step nine, gutter water falling construction
The assembled type gutter is adopted, construction is carried out according to the falling slope of the gutter, the contraction joint and the gutter falling door do not need glue, the assembly is carried out according to the material temperature during the assembly, and the contraction joint is added when the length of the gutter exceeds 10 m;
step ten, laying roof tiles
Laying roof tiles on the surface of the waterproof roll from top to bottom;
eleventh step, constructing heat-insulating soundproof cotton for roof
Filling heat insulation cotton in the roof truss, wherein no gap is formed between the heat insulation cotton in the wall body, and the roof truss is completely filled;
twelve steps, roof inner top plate construction
Adopt the thick individual layer gypsum board of 9.5mm, the gypsum board should adopt self-tapping screw to be connected with the roof truss, and the limit portion of board and seam department self-tapping screw's interval is not more than 150mm, and the inside self-tapping screw interval of board is not more than 300mm, and the space between the board is not more than 2 mm.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A roof construction process of a light steel villa is characterized by comprising the following steps:
step one, truss splicing
(1) Setting a working platform, leveling the working platform, fixing the working platform and keeping the working platform horizontal;
(2) placing the members for splicing the truss on a working platform, enabling the gravity center lines of the members to be on the same horizontal plane, wherein the error is not more than 3mm, placing the chord members of the roof truss in sequence when splicing the roof truss, then placing the web members of the roof truss on the chord members of the roof truss one by one, and then fixedly connecting the members by using screws;
step two, truss transportation
After the roof trusses are connected, the trusses are transported to a construction site for standby application, and the deformation of the rod pieces caused by collision is avoided as much as possible in the process of carrying the roof trusses, and if the deformation occurs, the deformation is corrected in time;
step three, plane inspection and measurement pay-off
Before the roof truss is installed, whether openings such as an upper population, a flue and the like exist in the plane of the roof truss is checked, and a truss positioning line on a construction drawing is lofted on a guide rail at the top of a lower wall body;
step four, mounting the roof truss and the wall connecting piece
Installing a truss according to the lofting position and connecting the truss with a wall to finish the installation of the roof truss;
fifthly, mounting the cornice and the cabin ridge plate
Installing a cornice component, and then installing a cornice edge wrapping plate and a cabin ridge plate;
sixthly, mounting the roof panel
The roof structure panel adopts an OSB plate, and the roof plate is connected with the roof truss by adopting a screw;
seventhly, laying waterproof coiled materials
(1) After the roof OSB board is installed, laying a roof waterproof coiled material, wherein the waterproof coiled material is an asphalt waterproof coiled material, and melting hot melt adhesive at the bottom of the waterproof coiled material by using a flame heater for adhering;
(2) the direction of the coiled material should meet the following regulations
a, paving and pasting coiled materials parallel to a roof ridge, wherein the slope of the roof is less than 3%;
b, when the slope of the roof is 3% -15%, the coiled materials can be paved and pasted in parallel or perpendicular to the roof ridge;
c, when the slope of the roof is more than 15% or the roof is vibrated, the asphalt waterproof coiled material is paved and pasted vertically to the roof ridge, and the high polymer modified asphalt waterproof coiled material and the synthetic polymer waterproof coiled material can be paved and pasted vertically or in parallel to the roof ridge;
(3) when the lapping method is adopted for paving and pasting the coiled materials, the lapping seams of the upper and lower layers and two adjacent coiled materials are staggered;
(4) the hot-melting method for paving and pasting the coiled material meets the following regulations
a, a flame heater is used for heating the coiled material uniformly, the coiled material is not required to be heated or burnt through, and the high polymer modified asphalt waterproof coiled material with the thickness less than 3mm is strictly constructed by a hot melting method;
b, immediately rolling and paving the coiled material after the surface of the coiled material is hot-melted, exhausting air below the coiled material, and firmly rolling and bonding without hollowing;
c, hot-melt modified asphalt mastic is required to overflow from the seam position of the coiled material;
d, the coiled material paved and pasted is smooth and straight, the lapping size is accurate, and the coiled material cannot be twisted or wrinkled;
step eight, roof ventilation pipe construction
After the roof waterproof is finished, installing a roof vent pipe, wherein the root of the vent pipe needs to be sealed by using sealing paste;
step nine, gutter water falling construction
The assembled type gutter is adopted, construction is carried out according to the falling slope of the gutter, the contraction joint and the gutter falling door do not need glue, the assembly is carried out according to the material temperature during the assembly, and the contraction joint is added when the length of the gutter exceeds 10 m;
step ten, laying roof tiles
Laying roof tiles on the surface of the waterproof roll from top to bottom;
eleventh step, constructing heat-insulating soundproof cotton for roof
Filling heat insulation cotton in the roof truss, wherein no gap is formed between the heat insulation cotton in the wall body, and the roof truss is completely filled;
twelve steps, roof inner top plate construction
Adopt the individual layer gypsum board, the gypsum board should adopt the screw connection with the roof truss.
2. The roof construction process of a light steel villa according to claim 1, characterized in that: seventhly, the asphalt waterproof coiled material is free from holes, wrinkles, cracks, splits and edges and is not coated uniformly; when the coiled material is used as a waterproof layer on a roof with the gradient of more than 25 percent, a fixing measure is adopted, and the fixing point is tightly sealed.
3. The roof construction process of a light steel villa according to claim 1, characterized in that: seventhly, before the roof waterproof layer is laid, the base layer needs to be cleaned and dried;
the method for identifying the drying degree comprises the steps of flatly and dryly paving 1m2 coiled materials on a leveling layer, standing for 3-4h, then lifting and checking, and paving the coiled materials without watermarks on the covering part of the leveling layer and the coiled materials.
4. The roof construction process of a light steel villa according to claim 1, characterized in that: sixthly, the distance between the edge of the roof panel and the self-tapping screws at the joint is not more than 150mm, the distance between the self-tapping screws inside the roof panel is not more than 250mm, the distance between the screws and the edge of the roof panel is not less than 12mm, the gap between the roof panels is controlled to be 4mm, the surface texture of the roof panel is perpendicular to the length direction of the upper chord of the truss, and the size of each oriented strand board is not less than 610mm multiplied by 610mm when the oriented strand board is used as a roof.
5. The roof construction process of a light steel villa according to claim 1, characterized in that: when the roof OSB plate is installed, because the roof has a slope, the roof is installed in a direction of the slope, the roof is installed from bottom to top, meanwhile, in order to guarantee the safety of constructors, the safety belt is tied when the roof plate is installed, and pedals protruding out of the roof plate are arranged on the roof plate at intervals along the horizontal direction.
6. The roof construction process of a light steel villa according to claim 1, characterized in that: and step four, when the truss is installed, checking the verticality, the lateral bending rise deviation, the flatness of the upper chord and the ridge of the roof truss, the levelness of the cornice and the like of the truss, and ensuring that the installation deviation of all the trusses meets the requirements.
7. The roof construction process of a light steel villa according to claim 1, characterized in that: and step four, when the roof truss is connected with the wall body, the temporary support and the cable are used for temporarily fixing the position near the middle part of the truss, so that instability in the construction process is prevented, and the temporary support cannot be detached before the support member between the roof structural plate and the roof truss is installed.
8. The roof construction process of a light steel villa according to claim 7, characterized in that: the position of the roof truss supporting system is determined according to the span of the roof truss, and when the span of the roof truss is not more than 2 meters, the supporting system is not arranged; when the span is 2-4 m, a support system is arranged in the middle; when the span is 4-6 m, a support system is respectively arranged at 1/3 and 2/3; when the span is larger than 6 meters, a support system is arranged every 2 meters.
9. The roof construction process of a light steel villa according to claim 1, characterized in that: and step five, after the trusses and the cornices are installed, bending the cornice edge-wrapping plates or the small roof ridge plates into angles matched with the gradient of the cornice or the roof by using wide and flat steel belts, continuously paving the cornice or the roof with roof gutters along the cornices or the roofs, and fixing the cornice or the trusses with the cornices or the trusses by using screws.
10. The roof construction process of a light steel villa according to claim 1, characterized in that: and step twelve, the distance between the side part of the gypsum board and the screw at the joint is not more than 150mm, the distance between the screws in the gypsum board is not more than 300mm, and the gap between the gypsum boards is not more than 2 mm.
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| CN201911337559.2A CN111042420A (en) | 2019-12-23 | 2019-12-23 | Roof construction process for light steel villa |
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Cited By (1)
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| CN111561095A (en) * | 2020-07-15 | 2020-08-21 | 中国船舶重工集团国际工程有限公司 | Connecting structure and mounting method of box plate assembly type steel structure building slope roof |
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Application publication date: 20200421 |