The consumption of putty on 1m2: how correctly to calculate the amount of necessary material?

Filler is a material used for smoothing and smoothing surfaces of various types. With its help, it is possible to smoothly smooth irregularities on a concrete ceiling, pre-plastered wall, plasterboard sheets or on wooden surfaces.

Use of putty provides an ideal result of final finishing works. That is why it is important to choose the right material for the surface, and also to calculate the most accurate use of putty on 1m2.

What are the putty

Putties differ from each other in the base - in that it is used as a binder component. Basically, binders are divided into cement, gypsum and polymers. There are a number of special fillings on the glue or oil base.

Polymer base filler is the most elastic and practical, it dries quickly, is easily rubbed, does not shrink and does not crack. The price of polymer putty is quite high, and the range of application is mainly limited to interior finishing works.

A cheaper variant of the material for interior wall finishing is gypsum-based filler. Elastic, comfortable in application and not shrinking, it also dries quickly and is easily ground, even dry. The disadvantage of gypsum is poor water resistance. In a wet and damp room, it is best not to use this material.

A high water resistance and resistance to temperature changes has cement putty. This material has the highest consumption per 1 m ² , but it is excellent for facade work, finishing rooms with high humidity and unstable temperature, for example, bathrooms, cellars, saunas or summer houses.

What does the consumption for 1m2 depend on?

The instruction on the packaging of the material usually includes an approximate consumption of putty on 1m2. However, it does not always take into account the various characteristics that can affect the surface treatment.

The consumption of putty on 1m2 depends on a number of conditions and characteristics, among which:

• The level of surface preparation - plastered and primed walls require less material, while the smoothing of uneven surfaces with a large number of defects will take much more filler.
• The nature of the surface - the consumption of putty on 1m2 of drywall is different from the consumption of the same material per square meter of concrete surface. The tree does not tolerate a thick layer of putty.
• Kinds of finishing works - starting puttying of walls usually requires more material and almost twice exceeds the consumption of finishing putty on 1m2.
• The level of performance of the work - the professional has almost intuitive knowledge and understanding of the nature of the surface, as well as the quality and quantity of the required material. A novice or an amateur will not only need more time, but more effort and construction materials.

How to correctly calculate the consumption of putty on 1m2

The approximate consumption of a mixture on a cement basis with a layer of application of 1 mm is from 0.8 to 1 kg per 1 m ² . Putty on a gypsum base, due to greater elasticity, is consumed with a calculation of 0.5-0.6 kg per 1 m ² with a millimeter layer.

To properly calculate the amount of the required mixture, you need to carefully study the surface, approximately by determining the required thickness of the layer; Then calculate the area of the surface to be treated. Approximate amount is calculated by the formula:

• Surface area * layer thickness * material consumption.

For example, it is necessary to fill a slightly uneven wall with an area of 12 m ² , for this, covering it with a layer 5 mm thick, using a mixture on a cement base. With such data, the formula for calculating the material will look like this: 12 x 5 x 0.9 = 54 kg.

Consumption of some ready mixes

Ready-to-use material is sold in plastic buckets and does not require pre-kneading. Among the popular brands today can be identified "Knauf", "Shitrok", "Vetonit" and Ceresit.

The basis of putty "Shitrok" - gypsum, in addition there is a certain amount of polymers and vinyl, which makes it very elastic, with a layer of 1 mm per 1 m ^{2, it} takes about half a kilogram of the mixture. The consumption of putty "Vetonit" per 1 m2 is more than a kilogram; Due to natural, but heavy binders, such as cement, sand, limestone and minerals per 1 mm layer, approximately 1.2 kg of putty is required.

When calculating the amount of the mixture, it is worth considering the small amount of material that remains on the walls of the working container, on the rule and spatula. Just in case, it is better to purchase a few kilograms of putty more than the initial calculation.