Roofing work: technological map

Roofing is a critical and final stage in the construction of a building structure. Any errors in the implementation of this stage entail unnecessary costs and troubles. Therefore, a technological map for roofing work should be developed. What points this document covers and other roofing standards, we will tell in this article.

Technical development

A technical map for roofing work is developed for the installation of a new coating or the replacement of old materials.

This document defines the order of production work on the installation of the roof and includes:

• The scope of the coating using materials corresponding to the type of roof. For example, bituminous mastic coating devices are based on the use of a bitumen-mastic or bitumen-polymer composition.

• Organizational issues and the technological side of the work. Before the roof is covered, a range of construction and installation work must be completed, including fixing load-bearing structures, drain funnels, and, if necessary, installing branch pipes to provide engineering equipment.

• Norms and requirements for roofing, depending on the material, appearance, viscosity, water resistance, strength, adhesion, biostability, resistance to static stress.

• The use of material and technical resources (buckets, shovels, spatulas, protective equipment, tools and equipment).
• Basic requirements for the quality of roofing work.

In other words, the technical side of the roofing production card covers the documentation on the roof structure, roofing materials, special equipment, installation and control operations.

Estimated norms

In order to determine the cost of resources (materials, equipment, labor of workers) during the construction of the roof and to use the resource method to calculate estimates for the implementation of roofing works, GESN roofing works are used, containing the following points:

• general guidelines for roofing;
• norms for calculating the volume of production work;
• coefficient indicators to the norms.

Tables of state elemental estimated norms (gesn) determine the composition of roofing work:

• installation of pitched roofs;
• installation of flat roofs using rolled coatings;
• installation of mastic coatings with reinforcement;
• adjoining roofing to parapets and walls;
• installation of valleys, gutters and expansion joints;
• device roof overhangs;
• waterproofing and vapor barrier device;
• preparation of bituminous mastics;
• laying of coverings of various types.

Estimated norms for roofing work are standards for compiling individual, unit prices.

Attention. When carrying out roofing work on capital facilities being built with the involvement of public funds, the estimated norms are mandatory in application. If the roofing work is financed at its own expense, then the elemental norms are recommendations for implementation.

The provisions of the state standard

In case of technical expansion, reconstruction and construction, roofing and waterproofing works are covered by GOST roofing works (12.3.040-86.), containing:

• general provisions for roofing work;
• basic requirements for the technological process;
• requirements for the production base and equipment;
• requirements for organizational issues on the arrangement of workplaces;
• requirements for storage, transportation and use roofing materials;
• requirements and control over the implementation of security measures.

Since the performance of roofing work is regulated by the provisions of the state standard, many people ask the question, do I need a license for roofing work? The full answer to this question must be found in the law on licensing construction works.

If you built a house for yourself, then questions about licensing roofing may not arise. But, if the building structures are intended for public purposes, then the commission, when they are handed over, may require a document on the basis of which the work on the roof was carried out.

Advice. For your own confidence that there is no need to obtain a license to perform roofing work, contact the licensing authorities, the architectural and construction committee of the state type with this question.

Execution of technological operations

Having work experience, a technical map, based on the provisions of the estimated norm and the state standard, you can proceed to the technological part of the roofing work.

When arranging roofs, the following types of roofing work are distinguished:

• design;
• truss system device;
• roof insulation;
• creation of a vapor and waterproofing layer;
• creating a crate;
• installation of roofing material;
• installation of elements of the drainage system;
• if necessary, installation of skylights, manufacturing and finishing of the roof box.

The design of pitched or flat roofs takes into account many factors:

• the appearance of the coating;
• wind and snow loads;
• average seasonal precipitation;
• roofing properties.

When erecting rafters, the requirements for the reliability and strength of the roof are taken into account.Works related to the insulation and insulation of the roof are aimed at protecting the house from atmospheric influences, providing sound insulation and thermal properties to the internal space of the roof.

Device roof drainage system it is necessary for the roof to perform a drainage function and the reliable functioning of the construction site.

The composition of roofing works depends on the type of roof (roll, sheet, mastic, piece) and the type of material (ceramic, metal, natural, asbestos-cement, polymer).

The performance of roofing work largely depends on the possibility of using the material at a certain temperature.

Features of work in winter conditions

Roofing work in winter is a little different than in other seasons of the year. Firstly, it is necessary that the technical properties of the roofing material allow it to be used in winter.

 

According to the technical standards for roofing at low temperatures, it is prohibited:

• apply bitumen-latex coating and protective layer;
• stick rolled materials on a surface covered with ice or hoarfrost;
• seal the seams with cement mortar on tiled and asbestos-cement roofs;
• arrange a collar on the roof of a cement-sand mortar.

Control of production work

At each stage of the roofing installation, quality control of roofing works is carried out.

It covers:

• technological map control;
• verification of compliance of roofing work with estimated standards;
• roofing quality control;
• direct control over the implementation of production processes for the installation of the roof, including the construction of the base and installation of the main cover;
• supervision of roofing works.

The controlling person ensures that the following requirements are met:

• the quality and size of the materials declared in the project;
• the presence of waterproofing gaskets in places where the roof structures touch other surfaces;
• carrying out fire protection of wooden parts, according to the project and specifications;
• compliance of dormer windows and ventilation declared in the project.

Each person, equipping the roof, seeks to extend its life. Many people confuse the concept of a warranty period for roofing material and a warranty period for roofing work.

The second concept is determined by the interval between major repairs on the roof.

It depends on the following indicators:

• material durability;
• operating conditions;
• implementation of the correct design of the roof;
• choice of roofing;
• technology and quality of laying the main coating and auxiliary materials;
• classification of roofers;
• implementation of measures for the care of roofing.

If the roofer gives a guarantee for his work, then he is obliged to repair the coating at his own expense during the warranty period, if necessary.

As a rule, a warranty service agreement is concluded by those persons who have a license to perform roofing work.

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