One of the most practical and functional roofing materials is soft tiles: this type of roof can be perfectly combined with buildings of almost any architectural type, organically complementing the overall ensemble.
However, there is one invariable condition: the minimum possible angle of roof slope, at which the installation of tiles of this type is possible - 11.25 gr. (1:5).
Tiled roof maintenance
- To maintain the aesthetic and operational properties of soft tiles for a long time, it is required to check the condition of the roof at least twice a year.
- It is recommended to sweep away small debris and leaves with a soft brush, the bristles of which do not damage the tiles. Large debris - remove only by hand.
- It is imperative to ensure free flow. Gutters and funnels must be cleaned in a timely manner.
- Snow should be raked only when absolutely necessary, leaving at least 20 cm as a protective layer. It is not recommended to use sharp objects for cleaning, as they can damage the roof.
- If the first signs of damage appear, they should be repaired immediately, without waiting for more serious damage to appear.
Installation of roofing tiles
Installation of a roof made of soft tiles is permissible at a temperature not lower than +5 ° C, otherwise the packages with tiles must be stored in a dry, warm room.
In general, manufacturers do not recommend laying this roof material in winter. This is due to the fact that the shingle (a block of 3-4 "tiles") is attached to a wooden base with nails and a self-adhesive layer on one side of the shingle.
In order to securely glue several shingles together, as well as firmly attach them to the base, the sun's rays are required to be strong enough to melt the self-adhesive layer. In winter, the sun, alas, gives quite little heat.
Moreover, under conditions of low temperatures, the shingles lose their mechanical properties, becoming brittle, which significantly limits the possibilities of their installation.
However, winters have become somewhat less cold in recent years. In addition, even in conditions of negative temperatures, it is possible to carry out preparatory work - installation of a truss system, wooden flooring equipment, insulation equipment, hydro- and vapor barriers.
During this period, it is possible to arrange the protection of the structure from snow, subject to a long absence of precipitation.
In short, if you want to maximize the life of a soft roof, delay its installation at least until the spring, but almost all the preparatory work can be done already in the winter. Of course, installation is possible at any time of the year, but in winter some additional work will be required.
Roof soft: SNIP during installation in the cold season
- Initially, the so-called "teplyak" is erected. It is a metal or wooden structure covered with a special protective film.
- After that, heating structures are deployed (usually diesel or electric heat guns).
- In some cases, when facade work is carried out along with roofing, heating systems are deployed throughout the building.
Installation of tiles
Base
According to the SNIP section: soft roof installation, these structures must necessarily contain a base.
For these purposes, use a material with smooth surfaces that allows fastening with nails:
- Edged board
- OSB (OSB) plate
- Moisture resistant plywood
Important! The moisture content of the material must not exceed 20% of its dry weight. The joints between individual boards must be located at the supports, while the size of the boards must exceed the length of two inter-support spans. The expansion of the boards due to fluctuations in temperature and humidity should be taken into account, leaving some gap between the fasteners.
Ventilation
Many are interested in what kind of air gap a soft roof device should contain - SNIP regulates a fairly large one, at least 50 mm.
The exhaust hole should be located as high as possible, while the holes intended for air inflow, on the contrary, should be located at the bottom of the structure.
Ventilation performs the following functions:
- Moisture removal from insulation, roofing material and lathing.
- Reduction of ice formations in winter
- Decrease in temperature in summer
Lining layer
Soft roofing is carried out using Ruflex material as a lining for flexible tiles. Ruflex is laid from bottom to top with a minimum overlap of 10 cm parallel to the roof eaves, while the edges are fixed with nails driven at 20 cm intervals.
K-36 glue is used to seal the seams.
Note: with a roof slope greater than 18 degrees (1:3), laying of lining material is possible only on eaves, in valleys, on roof ridges and in the end parts of the structure, in places where they pass through the roof.
Metal cornice strips
The soft tile roofing technology assumes that the edges of the lathing are protected from rain moisture.
To ensure it, special metal cornice strips with an overlap of 2 cm or more are installed over the lining carpet.They are fixed with roofing nails in 10cm increments.
Valley carpet
In order to increase protection against moisture, in valleys it is recommended to lay a special carpet made of RUFLEX SUPER PINTARI material over the underlayment layer, the color of which is matched to the tone of the roof.
Cornice tiles
Next, the installation of self-adhesive cornice tiles begins. It is laid butt-to-joint along the overhang of the cornice with a 2 cm offset from the cornice plank. The cornice tiles are fixed with nails near the perforations.
Ordinary tile
Incorrectly laid, one drawback may have a soft roof: colors that are slightly different in tone. To avoid this, roof tiles should be mixed, at the same time from 5-6 packs.
Installation should start from the central part of the roof overhang and continue towards the end of the roof. If the roof slope is more than 45 degrees (1:1), then the tiles must be additionally fixed with six nails.
The first row of tiles must be installed in such a way that its lower part is within 1 cm from the edge of the eaves tiles, and the junctions of the cornice tiles must be covered with “petals”.
On the end parts of the roof, soft tiles should be cut along the edge and glued with K-36 glue. The edge of the cut line must also be glued to a depth of at least 10 cm.
Roof tiles
The technology of roofing with Rocky soft tiles involves laying from the cornice overhang towards the ridge and the end of the roof. The first row is laid in such a way that the “petals” cover the line along which the perforation and the joints of the cornice tiles pass.
The second and subsequent rows are laid with the expectation that the joints of the lower shingles will be located in the center of the installed shingle.Each row is nailed in such a way that the caps of the fixing nails are covered with the petals of the next row.
Ridge shingles
Ridge tiles (0.33x0.25m) are obtained by dividing the eaves tiles into three parts along the perforation lines. Installation of such tiles is carried out parallel to the ridge.
Fastening is done with four nails in such a way that the heads of the fastening nails are under the next layer of overlapping tiles.
Roof connections
The installation scheme of a soft roof requires small holes (antennas, etc.) in the places of passages through it to have rubber seals. Elements exposed to heat (pipes, etc.) must be insulated using special 50x50 mm rails and Ruflex underlayment.
The overlaps must be coated with K-36 glue. In the future, the tile is installed on a vertical surface and attached to it using K-36 glue. The junction points are closed with a mechanically fixed apron.
The seams are sealed with a weather-resistant silicone compound. Soft tiles are placed on vertical walls in the same way, and the roof at the same time turns out to be a “safety element”.
Using glue K-36
It is recommended to use Katepal K-36 glue to connect and seal the following soft roof units:
- Roof tile overlaps
- Adjacency of foreign elements
- Underlayment overlaps
General characteristics:
- Storage temperature: up to +30°С
- Full dry time: about 5 hours to touch at 20°C, full dry from 1 day to 2 weeks (depending on temperature and adhesive layer thickness)
- Application temperature: from +5 to +45°С
Method of applying glue K-36
The surface is preliminarily cleaned of oil, dirt and loose materials. Bitumen mortar grade K-80 is applied to dusty and porous substrates.
Directly glue should be applied with a special spatula only on one of the surfaces to be glued with a layer, the thickness of which varies between 0.5-1 mm.
The gluing width must be specified in the installation instructions. When pasting parts adjacent to pipes and walls, a special tool for soft roofing is required, which allows you to apply glue over the entire contact surface.
The gluing process itself should be started 1-4 minutes after application (the duration of the delay depends on the ambient temperature).
The article discusses in detail the technology of soft tile roofing and now you know what you can cover the roof with. The preparation, choice of material, composition of the roofing "pie", the subtleties of installation at the bend, junctions and cornice, installation in winter are considered. The methods of caring for such a roof are indicated.
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