Pergamin

Faced with the choice of roofing material, a number of factors are taken into account, such as the weight of the material, technical parameters, the effect of the atmosphere, strength, etc. Among the fundamental criteria is the price side of the issue. The most budgetary and affordable methods of arranging the roofing system are rolled materials, whose use does not require the availability of professional skills and special tools.

The modern roofing system is constructed on the principle of "pie", that is, the roof consists of several layers, each of which fulfills its technical function. One of these layers is the glassine( though, the roof is not the only area of ​​its application).What are the technical characteristics of the glassine, the features and disadvantages of this material? This is in our article with photos and video materials.

Scope of application

First, let's define what is parchment? Pergamin - cardboard, which is processed by special solutions based on bitumen at the production stage.

To date, the scope of use of pergamina implies:

• use to provide a vapor barrier - for example, in the arrangement of garages and outbuildings;
• on pipelines and heating mains;
• processing of reinforced concrete rings, requiring additional finishing and processing of septic tanks;
• for temporary packing of small items;
• is used as a temporary cover;
• preservation of the heater from moisture;
• when using a soft roof, the glassine serves as a substrate;
• wood surfaces, glassine roofing allows "breathing";
• metal surfaces of glassine protects against corrosion.

Technical characteristics of pergamina

To date, this building material is produced by several brands, like P-250, P-300 and Pergamum roofing grade P-350.The higher this index, the higher the strength and properties of pergamene and the more worthy its technical characteristics.

• Pergamen P-250 - tensile force is 15 kgf, water is absent for 10 hours on the surface of this grade.
• Pergamum P-300 - tensile force - 22 kgs, water does not show up for 20 hours.
• Pergamum P-350 - this grade is used in the roofing system, the water absorption level is 20% of the mass, the tensile force is 22 kgs, the parchment retains its technical characteristics to +5 degrees, with a lower mark on it cracks.

Advantages of

For the right choice, you should carefully read some of the benefits of glassine:

• The most important advantage of pergamine is the cost of the material, the higher the mark, the more expensive the blade.
• The versatility of the material - the installation is so simple that it is not important to have professional skills to install it. There are several mounting options, it all depends on the main material - stapling, gluing and building scotch.
• A light weight allows for installation without additional calculation and work systems, like reinforcement of the foundation, roofing system.
• Repairability - the canvas is replaced quickly and does not have to know the skills.
• Tensile strength.
• Moderate water absorption.

Disadvantages of

To make a correct assessment, it is important to familiarize yourself with the defects of the glassine:

• If the installation is carried out on a damp surface, the reliability of the material is dramatically reduced.
• It is not recommended to work at low temperatures, since it breaks at minus temperature.
• Ultraviolet rays destroy the structure of pergamene and its mounting on open surfaces is impractical.
• Increased temperature can promote the release of harmful impurities.

It should be understood that manufacturers position the parchment as a material for the vapor barrier. Using it for other purposes, you should carefully weigh all the pros and cons, read reviews of experienced builders.

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