Why is the operated roof or terrace leaking? What to do if waterproofing of the floor in the balcony or terrace lets down and the leak becomes a headache? To understand the reasons it’s useful to know what the construction of terrace itself is and what problems can actual or a potential owners of the houses face?
Why is the operated roof or terrace leaking? What to do if waterproofing of the floor in the balcony or terrace lets down and the leak becomes a headache?
To understand the reasons it’s useful to know what the construction of terrace itself is and what problems can actual or a potential owners of the houses face?
The most unpleasant problem of the house owner is a roof leaking. Would you agree that it’s unpleasant when after the next rain it drips on your head? The ceiling and walls are getting wet, paint is exfoliating, wood is swelling, wet sheetrock is going to collapse.
The following reasons for leaking are most common:
• Accidental mechanical damages of waterproofing covering of the roof;
• Gap in the covering caused by temperature deformation after wrong choice of material;
• Leak resistance interruption in the adjoining waterproofing of the terrace to the wall of the house, parapet or the fence bracing;
• Long-term stagnation of water because of inadequate slope and wrong organization of drainage from the surface of the balcony or terrace;
• Mechanical damages of waterproofing material by upper covering when unavailability or the wrong choice of protective separation layer;
• Mistakes while construction or design of terrace structure.
For example lack of vapor-proof barrier leads to wetting heat protection layer declining its heat protective qualities and appearing of condensed water on the ceiling without direct leaking from outdoors. The same effect is possible if there’s not enough heat protection layer thickness.
In the table below there are approximate figures for advance estimate of expenses for application or repair the waterproofing layer of flat roof, terrace or balcony. The final cost is defined by complete budget after accounting all the influencing factors which can increase or decrease price.
№ Description Cost of work Cost of materials
1 Waterproofing a terrace with area up to 50 sq.m From 50,000 rub From 60,000 rub
2 Waterproofing a terrace with area from 100 sq.m From 80,000 rub From 110,000 rub
If repairs or the whole change of waterproofing layer of flat roof, balcony or terrace are necessary, we carry out this work with the use of modern and reliable polymeric membranes such as EPDM, PVC and TPO or the application of self-leveling waterproofing.
Our company is a certified contractor on the application of waterproofing materials RESITRIX and MARISEAL.
If possible it’s better to replace a heat protection having lost its qualities – mineral wool or foam plastic – to a new one that is not afraid of water. Extruded foam polystyrene is perfect for such structures. It can be used even over waterproofing layer as it absolutely does not absorb water therefore it doesn’t lose it qualities.
Drawings of waterproofing units of terraces and operated roofs
Waterproofing of terraces
Waterproofing of balconies
Like any other type of operated roof the “pie” of a terrace consists of:
• Bearing base – slab;
• Vapor barrier layer;
• Heat protection if there is a warm room below;
• Waterproofing layer (rolled materials, roofing mastics);
• Top protective coating over waterproofing layer depending on the kind of operation – paving slabs, gravel, wood flooring etc.
A terrace construction can also include draining, filtering and loading layers, leveling screeds, encapsulation materials and so on. For the waterproofing any combination of materials is perfect if they suit for loads and are able to provide reliability and longevity.
Places of joint of the waterproofing floor of a balcony or a terrace with the walls must be carried out with the use of profiled steel or plastic skirting and encapsulation materials for sealing of gaps and joints. Fence tubes coming through the waterproofing must be sealed by their base like the boxes stuffed with mastic.
Defects in these places can be quickly and easily found. But if the waterproofing of your terrace or a balcony is broken so it’s impossible to do without removing the top operated covering. Only after that you may define and repair leaking places and at the same time protect the covering for the future.
Specialists of the company “Radeka” have all the needed qualification and a considerable practical experience that allows us to carry out works on application and repair of flat roofs and open terraces. If you are interested in a high-quality work, please contact us, we will be glad to help you.
