1.0.1 This code was formulated for the purpose of strengthening the construction quality management of roof, unifying the quality acceptance of roof project and guaranteeing the functions and quality.
1.0.2 This code is applicable to the quality acceptance of building roof.
1.0.3 The design and construction of roof shall be in accordance with the relevant requirements of the current national standard GB 50345 "Technical Code for Roof Project".
1.0.4 The construction of roof project shall comply with the relevant requirements of the national environmental protection, building energy conservation and fire safety related.
1.0.5 The quality acceptance of Roof project not only shall meet those specified in this code, but also comply with those specified in the current relevant standards of the nation.
2 Terms
2.0.1 Vapor barrier
Structural layer preventing vapor from impregnating into thermal insulation layer.
2.0.2 Thermal insulation layer
Structural layer reducing heat exchange between roofs.
2.0.3 Waterproof layer
Structural layer able to isolate water and stop water permeating inside buildings.
2.0.4 Isolation layer
Structural layer eliminating adverse effects such as bond force, mechanical bite force and chemical reactions between two different materials.
2.0.5 Protection layer
Structural layer protecting waterproof layer or thermal insulation layer.
2.0.6 Insulation layer
Structural layer reducing solar radiant heat transferred inside room.
2.0.7 Compound waterproof layer
Waterproof layer composite of membrane and coating compatible to each other.
2.0.8 Additional layer
Reinforced layer of membrane or coating film arranged at the positions prone to leakage and damage.
2.0.9 Bushing surface
Structural layer by overspreading block tile or asphalt tile on the outmost side of roof, which has waterproof and decorative functions.
2.0.10 Running surface
Structural layer by overspreading metal plate or glass plate on the outmost side of roof, which has waterproof and decorative functions.
2.0.11 Waterproof leveling layer
Structural layer arranged under tiles and metal plates, which has waterproof and damp proof functions.
2.0.12 Nail-supporting layer
Structural layer of tile roof able to bond fastening nail.
2.0.13 Fiber material
Platy or felty fiber product made by centrifugal method or gas jet method after raw materials such as molten rock and slag molted at high temperature.
2.0.14 Spraying polyurethane foam
Jointless PURF formed by spraying foaming polyurethane on base layer with dedicated spraying equipment on site after adding additives such as foaming agent in isocyanate and polyhydric alcohols.
2.0.15 Cast foam concrete
Light porous concrete: make foaming agent solution into foam by physical method and then add the foam into the slurry made of cement, aggregate, admixtures and additives, and stir and cast on site, then conduct natural curing.
2.0.16 Glass lighting roof
Roof composed of transparent glass panel and supporting systems.
Contents
1 General Provisions
2 Terms
3 Basic Requirements
4 Base and Protection Projects
4.1 General Requirements
4.2 Leveling Slope and Leveling Blanket
4.3 Vapor Barrier
4.4 Isolation Layer
4.5 Protection Layer
5 Insulation and Thermal Insulation Projects
5.1 General Requirements
5.2 Thermal Insulation Layer of Plate Material
5.3 Thermal Insulation Layer of Mineral Fibeenerar
5.4 Thermal Insulation Layer of Spraying Polyurethane Foam
5.5 Thermal Insulation Layer of Cast Foam Concrete
5.6 Insulation Layer of Cultivation
5.7 Insulation Layer of Overhead Structure
5.8 Insulation Layer of Water Impoundment
6 Waterproofing and Sealing Projects
6.1 General Requirements
6.2 Membrane Waterproof Layer
6.3 Coating Waterproof Layer
6.4 Compound Waterproof Layer
6.5 Joint Sealing Waterproof Layer
7 Tile and Plate Projects
7.1 General Requirements
7.2 Sintering Tile and Concrete Tile Pavement
7.3 Asphalt Tile Pavement
7.4 Metal Plate Pavement
7.5 Glass Lighting Plate Pavement
8 Detail Construction Projects
8.1 General Requirements
8.2 Cornice
8.3 Eaves Gutter and Gutter
8.4 Parapet and Gable
8.5 Mizuochi Port
8.6 Deformation Joint
8.7 Exsertion Piping
8.8 Roof Passageway
8.9 Anti-Beam Water Hole
8.10 Facilities Base
8.11 Ridge of a Roof
8.12 Roof Windows
9 Roof Project Quality Acceptance
Appendix A Waterproof Material Admission Test Item and Standard Catalog
Appendix B Insulation Material Admission Test Item and Standard Catalog
Explanation of Wording in This Code
List of Quoted Standards
