Estimated ventilation: regulatory references and samples

What works may include estimates for the installation of ventilation? What norms of consumption of auxiliary materials and man-hour costs should be based on? Are there any standards for these costs? In our article we will try to answer these questions.

List of works

To begin with, we will decide what works can be included in the estimate.

Main

1. Development of the project and preparation of project documentation.

Note: the project must be justified by calculations confirming its performance and the lack of redundancy in the performance of the designed system. It is obvious that the customer is interested not only in efficiency, but also in saving their own funds.

1. If necessary - dismantling of the old ventilation system, partial dismantling of partitions, punching shafts in the ceilings.
2. Installation of air ducts, air intake and supply umbrellas and grilles.
3. Installation of fans, filters, heaters, air conditioning systems etc.
4. A separate item is the estimate for the commissioning of ventilation.

Auxiliary

In addition to the actual installation and dismantling, the performer will:

• Transportation of materials and equipment.
• Loading and unloading (including the use of technology, whose work is paid separately).
• The construction of temporary sites, forests, etc.
• In the absence at the time of the commencement of work a stable power supply - supply of the construction site with its own generation of electricity.

Regulations

Two documents are useful when drawing up an estimate:

1. State elemental estimate norms (GESN), section 20. They allow to estimate the need for resources (the same man-hours, the duration of the equipment, the number of rivets, etc.).

1. Federal unit pricing (PER), section 20. This contains the estimated cost of each work performed during installation or dismantling. Rates are advisory in nature.

Note: in addition to PFR, there are also Territorial Unit Prices (TER), which are tailored to the specific local conditions (logistics, road conditions, seasonal temperatures, etc.). As a justification for budgeting can be used as FER, and TER.

We give short excerpts from both documents.

Hesn

According to this document, the following resources will be required for laying an air duct with a total wall area of ​​100 m2 with a wall thickness of 0.5 mm and a diameter of up to 200 mm:

Fer

But the estimated costs, on the basis of which the local estimate for ventilation is compiled, are from Federal unit prices for 2001. The same air duct with a wall thickness of 0.5 mm, with an area of ​​100 m2 and a diameter of up to 200 mm will serve as a model.

To clarify: the materials incorporated in the project are a separate item of expenditure. Unaccounted materials are, for example, the replacement of a welder’s mask with accidentally crushed glass or broken flange of an adjustable wrench during a coupler. Since most of the installation work is done by hand, with the help of hand tools, the human factor will be the main item of unrecorded costs.

Sample

We hope that the instructions for budgeting in general terms is understandable to the reader. Now examine the sample. An example is the estimate of the ventilation device compiled by the Moscow-based Smeta-Moscow company; due to the limited scope of our material, we present only a short excerpt from its text.

Conclusion

We hope that our material will help the reader to orient in the preparation of estimates. As usual, you can find additional information in the attached video in this article. Successes!