SNiP for plastering work and maximum tolerances

Plastering is an essential building step that provides a smooth, long-lasting surface for walls and ceilings. There are certain rules and requirements that must be followed in order to guarantee excellent outcomes. These standards are referred to as "Construction Norms and Regulations" (SNiP, or "Stroitel"nye Normy i Pravila) in Russia. Maintaining consistency, safety, and quality in construction projects is facilitated by an understanding of SNiP for plastering.

The set of guidelines pertaining to the maximum tolerances in plastering work is a significant component of SNiP. Maximum tolerances are the permitted variations in the thickness, alignment, and flatness of the surface. Respecting these tolerances is essential to avoid problems like uneven surfaces, chipping, and inadequate paint or wallpaper adhesion.

Builders and contractors can achieve a high standard of finish that satisfies safety and aesthetic requirements by adhering to SNiP guidelines for plastering work. These instructions address every aspect of surface preparation, including application methods and final inspections. Maintaining adherence to these guidelines prolongs the plastered surfaces’ lifespan and improves the construction’s aesthetic appeal.

SNiP for Plastering Work Maximum Tolerances
SNiP 3.04.01-87 Vertical deviation: 2 mm per meter
SNiP 3.04.01-87 Flatness deviation: 3 mm per meter
SNiP 3.04.01-87 Surface smoothness: 2 mm per meter

Following the SNiP guidelines is essential when plastering in order to guarantee quality and longevity. The maximum tolerances for variations in surface evenness and thickness are established by these guidelines, aiding in the preservation of a uniformly smooth finish. Professionals and do-it-yourselfers alike can get the best results and avoid common problems like cracks and uneven surfaces by adhering to these standards. Knowing and using SNiP for plastering guarantees the longevity and functionality of the plastered surfaces in addition to improving their aesthetic appeal.

SNiP plaster. Code of Rules (joint venture)

Joint venture stucco work is accounted for at 71.133.thirty.2017 at the "finishing work" point. Points at every level of completion are included in this regulatory document, taking into account both indoor and outdoor labor. The guidelines for accepting the object are outlined, accounting for the technological aspects of the task, evaluating the controllability and accessibility of deficiencies in this kind of repair work, and accounting for coating tolerances.

Basic excerpts from SNiP for plastering work

It is worthwhile to review the key passages of the standard in order to streamline understanding of the appropriate behavior for professionals when plastering. Thus, these are the primary points of the joint venture stucco:

  • 11 The finish can take place in the building at the temperature indicators of the base and in the room within +5-30 degrees, the humid level should not be higher than 60%. The exception is other requirements specified by the manufacturer of the material. In this case, the temperature and humid regime should stay within these limits already 48 hours before the repair, and another 12 days during the completion of the drying of the layers after plastering;
  • 18, before each new layer of material, it is required to remove dust from the surface, as well as apply a primer, to reduce or align the absorption of the base;
  • 2.6, plastering the surface based on cement or lime with cement can be single -layer or multi -layered, but when applying several layers, each should grab before the transition to the subsequent layer, taking into account the recommendation of the manufacturer. According to the features of the work – the type of plaster, such as the surface, the thickness of the layers, the deviations of the walls, with the plan, if it is necessary to mount the grid on the wall, work on beacons;
  • 2.7 When using the gypsum composition, you can plaster the ceiling and another base without mounting the grid. Gypsum plasters are applied to 1 layer, if there are no other recommendations in the instructions for the tool;

7.2.13 Plaster SNiP Point: This represents the guidelines for the assessment process based on plaster quality.

Plastering a surface with cement or lime in one layer or multiple layers is an option.

Types of plastering coatings according to the quality of the resulting surface

You can understand what kinds of plastering work are highlighted if you follow the guidelines provided by SNiP in editorial office 3.04.01-87:

  • Simple plaster;
  • Improved appearance;
  • High -quality plastering.

Nevertheless, it is not specified in the requirements what kind of room each type is appropriate for. As such, the plastering option selected takes the room’s owner’s preferences into consideration. Thus, you can create a high-quality plaster in the utility room and a basic one in the living rooms—the choice is yours.

However, it is usually the case that important rooms—where beauty is required—are given preference when it comes to having a perfectly flat surface. Additionally, you can save in basements, garages, etc.

Usually, important rooms where the finish’s beauty is essential are given preference when it comes to having a perfectly level surface.

The thickness of the plaster layer and the requirements for this parameter

Undoubtedly, the SNiP’s internal wall thickness cannot be instantly ascertained. Everything is dependent upon the surface condition and the type of plastering that is selected. The number, type, and sequence of layers in each type of plaster coating vary. As a result, a different amount of solution will need to be applied in order to achieve a flat surface.

By quantifying departures from the requirements, the established standards aid in understanding the qualitative aspects of the work performed. Therefore, when examining deviations, the thickness of the improved plaster SNiP surface shouldn’t be greater than the following indicators:

  • Vertically no more than 2 mm;
  • Over the entire height of not more than 10 mm;
  • Horizontally no more than 2 mm.

Additionally, different standards apply to window openings, doors, walls, and other base components.

Additionally, the document specifies the plaster thickness on the SNiP brick, i.e. The subtleties of working with various materials are mentioned; for brick, a minimum layer of 5 mm can be used. Distinctions between external and external ornamentation are considered.

SNiP and tolerances for high -quality, improved and simple plaster

Preparing for the room’s decorative ceiling decoration will differ from working with the facade, which experiences strong negative influences during the winter. The GOST aids in establishing the standards pertaining to the dependability and effectiveness of plastering work.

Given the specified parameters, SNiP wall painting aids in achieving a stunning, uniform finish. Coloring, after all, draws attention to imperfections, so the base should be flawless. It is preferable in this situation to select premium plastering.

The following points can be observed based on the tolerances (noted in left-to-right order for each deviation indicator; tolerances will indicate for simple, improved, and high-quality plaster):

  • Vertically and horizontal – 3 mm, 2 mm, 1 mm per 1 m long;
  • On the vertical part to the entire surface height – 15 mm, 10 mm, 5 mm;
  • The number of uneven areas per 4 sq.m no more – 3, 2, 2.

That’s why using premium SNiP plaster enables you to obtain a more level base.

Work on the facade, which experiences strong adverse effects in the winter, will not be the same as getting ready for the room’s decorative ceiling decoration.

Reinforcing mesh and SNiP requirements for its use

When plastering in accordance with the guidelines, the following kinds of reinforcing materials are actually used, taking into consideration the necessity of using reinforcing mesh in specific situations:

  • Thin that is used if the thickness of the layer is not more than 3 cm;
  • The mesh was labited by wicker steel, suitable for coating no more than 5 cm;
  • Knitted reinforcement, which is required if the structure is subjected to strong deformations;
  • Prose-exhaust, to rule the foundation helps in different circumstances, a universal option suitable for layers up to 5 cm.

The following situations may call for the use of a reinforcing grid:

  • In external work;
  • When they work with different surfaces in materials, for example, with a wall to which a partition is connected from another material;
  • When working with foam concrete and materials similar in structure with it;
  • For cement-sand solutions, which are made up to 5 cm in thickness, for gypsum plasters with a thickness of more than 5 cm.

The rules for plastering also consider the necessity of using a reinforcing grid in certain situations.

You can be certain that SNiP’s plaster work will yield high-quality results. Understanding the standards will make it easier to inspect the plaster work and ensure that the repair was completed to a high standard.

Following set guidelines, like the SNiP regulations, is necessary to guarantee excellent plastering work. To ensure consistency and durability in construction projects, these guidelines offer comprehensive instructions on the materials and methods that should be used. Professionals can steer clear of frequent problems like uneven surfaces, poor adhesion, and cracking by adhering to these standards.

The specification of maximum tolerances is a key component of SNiP regulations. By defining the permissible variations in surface alignment and flatness, these tolerances guarantee that the completed plasterwork will be both structurally sound and aesthetically pleasing. Contractors can deliver a final product that satisfies client expectations and industry standards by following these tolerances.

Comprehending and putting into practice SNiP guidelines is crucial for plasterers. It prolongs the life of the plaster surfaces and raises the caliber of the work as well. The overall success of construction projects can be greatly impacted by regular training and awareness of these standards, which can result in better outcomes and happier clients.

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