How to Lay Roofing on the Garage Roof Correctly

In order for the roofing material to be correctly laid on the roof of the garage, the established rules regarding the technology of work should be followed. The base, which is placed under the waterproofing layer, must be:

Not wet. If the coating contains moisture, it should be dried thoroughly. To do this, you can use a roof burner or a blowtorch.

Solid surface. It is necessary to get rid of all the irregularities, cracks of the soft material before starting the laying of the roofing material. In the case of removing the old waterproofing layer, it is necessary to check the screen and, if necessary, dismantle it.

The base must be flat without drops so that during operation there is no stagnation of water.
Roofing work should be carried out in warm weather when the air temperature is more than +5 degrees. If this requirement is not met, a situation may occur associated with the appearance of cracks on the roofing felt during its installation.

The laying of the material should begin from the lowered sections of the roof. Each roll must overlap the previous one by at least 80 millimeters.

In the event that the roof slope is less than 15%, then the roofing material should roll across.

In the case of laying more than two layers, it is necessary to shift the adjacent layers relative to each other by at least 300 mm.

If you follow all of the above rules, then you can prevent a situation associated with a violation of technology in the process of doing the work of covering the roof of the garage with your own hands.

What brand of euro roofing material is best suited for covering the roof of a garage?

Very often people get lost in the process of choosing a certain brand of roofing material for covering the garage.

WHAT SHOULD YOU PAY ATTENTION TO IN THE SELECTION PROCESS?

What is the basis of the material?. The is best not to buy roll-type waterproofing on fiberglass, but to give preference to the roofing felt, where the base is fiberglass or polyester.
It is necessary to take into account the thickness of the material for the roof. It is best not to buy thin waterproofing. When performing roofing work, an experienced master can burn through the material.

WHICH BRANDS SHOULD I PREFER?

If the goal is to perform roofing work with high quality, then roofing material with an increased level of reliability should be used. These are Uniflex, Filizol, Isoplast, Technoelast. These materials are expensive, but of high quality with long service life.

VAPOR INSULATION OF FLAT ROOF: MATERIALS, METHODS

Vapor barrier during roofing work is performed to protect against the penetration of rising water vapor. The vapor barrier of flat roofs has a specificity: with their slight slope, it is not recommended to use upper vapor-permeable waterproofing barriers.

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MATERIALS FOR VAPOR INSULATION OF FLAT ROOF

Humidity in housing, formed during cooking, washing, using a shower, breathing, rising, enters the insulation. Here, the vapors condense, moistening the porous raw material. The result is a loss of insulating characteristics. During cold periods, constant freezing and thawing cause destruction, significantly reducing the shelf life. To protect against liquid, a roof vapor barrier is arranged.

It is attached from the inside between the ceiling and the heat insulator. Materials for protection from steam are taken differently in composition, thickness, cost, ability to control steam removal.

ABOUT POLYETHYLENE, WORKSHOP, ROOFING:

These are cheap materials, they are recommended to be laid only on non-residential buildings, such as garages, bathhouses, outbuildings. The flooring is airtight and subject to rapid wear. If there is a goal to save money and use PE or roofing material, it would be good to arrange powerful ventilation to prevent the accumulation of dampness, mold formation, and corrosion of metals.

ABOUT STEAM BARRIERS:

This is a vapor barrier film for roofing, on which cellulose or viscose is additionally applied to absorb vapors so as not to let them into the thermal insulator. The accumulated condensate gradually evaporates from the vapor barrier.

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ABOUT DIFFUSION MEMBRANES:

This is a product of the latest generations with a feature that does not interfere with the passage of air, but blocks the way for steam: the funnels that form the structure of the diffusers are directed with a narrow part inward, and this retains moisture.

ABOUT BITUMEN MEMBRANES:

The vapor barrier of a flat concrete roof is recommended to be organized with bitumen, by welding. The substance is flexible, can recover when broken or deflected, is impermeable, including at joints, and is not damaged due to irregularities in concrete.

ABOUT FILMS THAT CAN REFLECT:

Increasingly, non-perforated vapor barrier panels are being used, based on reinforced polymer fabric, laminated on both sides and aluminum foil. The foil acts as a heat reflector, protects against overheating, UV rays gives the properties of vapor and sound insulation. Fastening is done on a heat insulator, observing 4-6 cm of space to the inner surface for ventilation.

FLAT ROOF VAPOR INSULATION TECHNOLOGY

Vapor barrier for a flat roof is carried out during the arrangement of the roofing pie after the organization of thermal insulation:

• When pulling the rolled insulation, avoid sagging;
• The vapor barrier is mounted with the rough side towards the room;
• Bilateral membranes are installed as you like, and for one-sided, the inscriptions of the manufacturers are directed upwards;
• The canvas is fastened with a construction stapler or special galvanized nails with a flat head;
• The laying of the sheets is carried out with an overlap, overlapping the previous one by 10 cm and gluing with adhesive tape;
• It should be thoroughly glued at the junctions with the protrusions of antenna racks, chimneys, attic windows, ventilation ducts;

Having laid the canvases on the logs, horizontal bars are attached every 0.5 m to fix and maintain the air cushion between the inner layer of the roof and the film.

Installing a roof vapor barrier is a necessary element when installing flat roofs. It will serve to create a healthy indoor climate and long-term service of the entire roof. When choosing a vapor barrier, it is important to consider not only the price per m2 but also the insulating properties and other parameters. Having chosen a suitable insulator, it is necessary to mount it correctly in order to ensure maximum efficiency, quality, durability.