Krympress reports:
Hi, my name is Vladimir, and for many years I have been working as a commercial roof specialist in the company Ankons-roof.ruin St. Petersburg. During this time, I have seen a lot of roofs, from huge warehouse complexes to office buildings, and I know how important the intervention is to avoid big problems. Today I want to talk about the local repair of roller coating, specifically about how to cope with bubbles and folds. These are common defects that can lead to leaks and premature wear, but they can be eliminated effectively if you come up wisely.
First, let’s figure out what roller coating is. This is a multilayer system, usually based on bitumen or polymeric materials, like roofing material or euro -ruble, which are applied in rolls on a prepared basis. It is popular in commercial real estate due to its accessibility and reliability. But over time or due to installation errors, bubbles arise-it is a swelling where air or moisture falls under the layer, and folds are irregularities similar to wrinkles, often from poor-quality rolling or temperature differences.
The causes of bubbles usually lie in poor adhesion, when the mastic does not completely adhere to the base, or in the penetration of moisture through microcracks. The folds appear if the roll was not smoothed during styling, or from the shrinkage of the material under the influence of the weather. In our St. Petersburg climate, with its humidity and frosts, such problems are more common than we would like.
Now about repair methods. I always start with the inspection: I evaluate the size of the defect, I check for the presence of moisture inside the bubble. For local repairs, you do not need to block the entire roof — it saves time and money. One of the proven ways to eliminate bubbles is a puncture and injection. We take a sharp tool, like an awl, gently puncture bloating, release air or water, and then we introduce repair mastic through a syringe. Bitumen -based mastic or polyurethane — depends on the type of coating. After that, we press the site with the press to ensure a tight fit.
If the bubble is large, sometimes you have to cut a fragment. We make an incision of the cross, we bend the edges, cleanse the base of garbage and old mastic, apply a fresh layer of adhesion and a patch of the same roller material. The patch should block the defect by 10-15 cm at the edges for reliability. Then we are sealing with mastic and roll out with a roller. It is important to use materials with high elasticity so that they withstand our temperature changes.
With the folds, the situation is similar, but there is an emphasis on smoothing. First, we heat the site with a gas burner — this softens the bitumen, allowing you to level the fold. Do not overdo it with heating so as not to damage the material. Then we roll it with a heavy roller or a special tool, providing an even surface. If the fold is deep, it may be necessary to cut and apply patch, as when repairing bubbles. It is important to work in dry weather to avoid new problems with moisture.
From my experience, I will say: prevention is better than repairs. Regular roof inspections help to catch defects at an early stage. In our company, we offer monitoring and small repair services so that your commercial objects in St. Petersburg remain in perfect condition. If you notice bubbles or folds, do not pull — call specialists, and they will correct everything quickly and efficiently.
Answers to questions
What causes bubbles in rolled coating?
Bubbles occur due to air or moisture under a layer, often from poor adhesion or cracks.
Is it possible to repair the folds yourself?
You can try, but it is better to entrust professionals to avoid aggravation of the problem.
How much does local repair cost in St. Petersburg?
The price depends on the size of the defect, but, for example, in Ankons-roof.ru starts from 500 rubles per square meter.
How to prevent the appearance of folds?
Provide the correct installation and regular inspection, especially after severe rains or frosts.
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