Tapes for windows: overview, description
Joints, seams of any structures are the most vulnerable places. The same can be said about the windows installed in the window opening. It is the assembly seam that will be the weakest point in the whole structure. Through poorly laid seam can leave the heat, penetrate moisture and other sounds from the street, finally, the condensate that forms when the temperature difference will accumulate inside the insulation and degrade its characteristics, leading to destruction. The description of the characteristics of the installation seam and the technology of its installation is given special attention in GOST. At the moment, GOST 30971-2012 is valid.
Special features технологии. Зачем нужна пароизоляционная лента
According to GOST, the assembly seam should be three-layered. Each layer performs its function:
- The middle layer - the main - provides heat and sound insulation due to the porous structure.
- The outer layer protects from moisture coming from the street (he removes it) and from UV rays.
- The inner layer - vapor barrier. In fact, it retains heat in the house and does not allow a couple accumulating in the inner space of the room to penetrate inside the insulation layer.
Thus, compliance with the technology of the device seam is necessary to prevent the penetration of moisture, condensation, improve heat and sound insulation properties. Failure to install insulation layers will reduce the cost of installation and construction by about 15-20%, in general, but GOST does not allow such cases.
Classification of vapor barrier for windows
For the installation of PVC windows used vapor barrier tape in all varieties of varieties and vapor-permeable diffusion tape.
Tapes can have one or two adhesive surfaces. The first ones are installed on the frame itself, the second ones can be installed in the window opening, gluing them both to the wall and to the window profile. The range is divided into winter and summer options. Summer is designed to be installed at a temperature of +5 degrees to +35 degrees, winter - for installation at temperatures of +5 degrees and below. Moreover, when installing in winter, the surface of the window opening is required.
The tape should be about 5 cm wide than the assembly seam.
According to the material of manufacture, there are two types of tapes:
- Butyl rubber tape with non-woven reinforcement layer for sealing joints.
- Metallized tape designed for installation in wet areas.
Types of tapes
The functionality of the tapes is different, so when installing the window use different types depending on the goals at each particular stage. You should review the tapes.
| Manufacturing material | Where applicable | Properties | Special features | |
|
| Polyurethane | Used when organizing a ventilated mounting seam outside. Allows you to properly close the joints. It acts as a sound insulation when glued to the lower surface of the outflow. | Provides a tight fit of the frame to the wall. | Разматывать ленту (она поставляется скрученной в ролики) необходимо непосредственно перед монтажом. С течением времени она расширяется и теряет свои герметизирующие свойства. Ширина ленты ПЛУ должна превышать ширину монтажного зазора. |
|
Sun (sun +) | Nonwoven fabric. BC + - foil. | Used when installing internal slopes. It is combined with plastic, drywall, protects against condensation. | Interferes with moistening of the heater used for warming of slopes, in particular mineral wool. BC + has an adhesive double-sided layer. Is effective steam and heat insulation | There is an adhesive layer over the entire width. Sun + thicker than the sun. |
|
VM (VM +) | Nonwoven fabric. BM + - foil. | Used in the finishing of the internal slopes, but under the plaster. | Does not allow the penetration of condensate to the mineral wool insulation. VM + has an adhesive layer on both sides. | Provides adhesion with plaster. BM + is more resistant to moisture. |
|
GPL | It is made of foamed polyethylene, which is laminated with metallized film on one side. On the other hand, a glue layer is applied. | Universal tape. Used for heat, hydro- and vapor barrier. | Combines the properties of multiple tapes. It has increased elasticity, mechanical strength and resistance to aggressive chemicals. | Can badly stick to gas and foam concrete. |
|
GPL+ | Используется более толстый слой вспененного полиэтилена, чем GPL. Металлизированный слой на основе пленки из полиуретана. | Universal tape. Used for heat, hydro- and vapor barrier. | Отличие от ленты GPL в том, что со стороны металлизированной пленки вынесена дополнительная клеевая полоса. Лента имеет лучшие теплоизоляционные характеристики. Эффективно отражает тепло. | It is quite voluminous, which is inconvenient when finishing slopes. |
|
Diffusion tape | Polyester fabric with butyl rubber based adhesive strips. | Used to seal the mounting seam from the outflow side. | Vapor permeable from the inside, has waterproofing properties from the outside. | Resistant to UV rays. |
|
Butyl rubber mounting tape | Butyl rubber | It is installed between the windowsill and insulation. | Protects against blowing. | There is a self-adhesive layer. |
ПЛУ
Steam Insulation Tape Installation Procedure
The vapor barrier tape is installed after the preparatory procedures: dismantling the old window, cleaning the opening from debris, dust, sealing and leveling large irregularities.
- Оконный проем протирается сухой тряпкой и предварительно устанавливается оконная конструкция. В процессе размечается будущее расположение пароизоляционной ленты ПЛУ.
- The window is removed from the window opening and glued onto the frame of a vapor barrier tape with an indent from the marking of 5 mm. In the corners they glue the tape end to end, for which they initially cut the tape with an allowance, which will go to fit. The surface must be degreased and dust-free.
- On the side profiles and the top stick tape for slopes. leave an overlap of about 10 cm.
- Install the window. Foamed seam.
- The mounting seam on the outside is closed with a diffusion tape.
- Перед установкой отлива на его нижнюю поверхность вдоль приклеивают ПЛУ.
- On the seam in the lower part of the window from the inside fix metallized vapor barrier tape.
- The tape on the windowsill is glued last.