# Außenabdichtung > Seitlich eindringende Feuchtigkeit? Unser Team vom ISOTEC Mallorca, hilft Ihnen mit unserer professionellen Außenabdichtung. Jetzt mehr erfahren. ## The problem: moisture penetrating from the side Whereas in the past the basement was mainly used for storage, nowadays it is increasingly used as an extended living space. The possible uses are almost unlimited: - Hobby room - Fitness area - Sewing room - Playroom - and much more **The problem zone basement**: Especially the basement of a building is exposed to a certain permanent "basic load" of moisture due to the adjacent soil. Slope and seepage water or groundwater or flood levels increase this water load and exert hydrostatic pressure on the walls. ## Subsequent exterior sealing In the case of moisture penetrating from the side, surface waterproofing is required in the area of the house in contact with the ground. Exterior waterproofing is one of the options for waterproofing. The procedure for us is as follows: ### The cause: moisture penetrating from the side If the exterior sealing is damaged or even lacking, moisture penetrates the masonry through the area that is in direct contact with the ground. Posible damages may include staining, chipping of paint and plaster, mould infestation and even flooding in the basement. ### The solution: ISOTEC exterior sealing #### An overview of our approach #### 01 Preparing / plastering We expose and clean the masonry which needs to be sealed. The junction between the masonry and foundation ledge is rounded out with a concave moulding. We then apply our ISOTEC Sealing Plaster. The plaster ensures ideal adhesion and an even spreading of the following sealing layer. #### 02 Sealing We add a textile insert to the first layer of the bitumen and plastic emulsion (ISOTEC-VAS). We then apply another layer of the ISOTEC-VAS sealing. This way we obtain a sealing layer of at least 4 mm in depth. #### 03 Protect sealing / Insulate building After the ISOTEC-VAS has dried completely, we apply special thermal insulation panels. These panels protect the insulation from damage when the ground is filled back in. In addition, they considerably improve the thermal insulation coefficient and thereby the energy balance of the building. ## Structure of our exterior sealing #### Benefit from our high quality An exterior waterproofing from ISOTEC offers the highest safety and quality standards with a two-component waterproofing system. The two-layer application with full-surface reinforcement or fabric insert creates a waterproofing system that meets the highest requirements for waterproofing against moisture penetrating from the side. The substrate preparation is also the be-all and end-all here, but of course also the use of the right waterproofing material. The ISOTEC-VAS and the ISOTEC-Kombiflex waterproofing have been specially developed for waterproofing damp-through building components in contact with the ground and are used here because of their reaction time. The ISOTEC combiflex waterproofing is UV-resistant and the fast drying time allows the excavation pit to be backfilled, depending on the project, after just 24 hours. This means that you can design and use the exterior surface again after only a short time. The objective of subsequent exterior waterproofing is to achieve the so-called equalising moisture in the waterproofed basement walls. This is a process that - depending on the condition of the basement wall and the original degree of moisture penetration - can take up to two years. If ISOTEC renovation plaster is applied to the inside of the basement walls as a supplementary measure after the exterior waterproofing, the basement rooms can be used to a high standard more quickly. ## Officially approved - scientifically confirmed At ISOTEC we only apply systems that comply with the strictest regulations. The ISOTEC Exterior Sealing is executed in compliance with the regulations of the WTA (German scientific-technical consortium for the preservation of buildings and monuments). Our ISOTEC Exterior Sealing also complies with all requirements of the Material Testing Office of North Rhine-Westphalia. ## Your advantages of our exterior sealing - Environmentally friendly and solvent-free - More health, more safety - Reliable renovation success - lasting protection - After renovation, a pleasant indoor climate is created, for healthy living and a sense of well-being - Improved thermal insulation - Increase in the value of the property Our satisfied customers ### Exterior detachment at Mainz main station Learn more ## Technology Building sealing Once the cause of the damage has been clarified, the restoration begins. Step by step, we remove the damage using scientifically tested methods that have been tried and tested in practice. Depending on the cause of the damage, we also offer supplementary measures such as technical drying, mould removal or the application of a remedial plaster system. For the final waterproofing, we use concepts specially developed by our experts, each of which is specifically tailored to your problem situation. If the cause of the damage is capillary rising damp, this can be eliminated by a horizontal barrier using the paraffin injection method. If precipitation water only slowly enters the groundwater, it presses on the outer basement walls. An exterior waterproofing system protects against this moisture penetrating from the side. If a basement exterior wall is not directly accessible from the outside, interior waterproofing offers a reliable alternative. ### This is what makes ISOTEC exterior waterproofing special The objective of a subsequent exterior waterproofing is to achieve the so-called equilibrium moisture in the waterproofed basement walls. This is a process that - depending on the condition of the basement wall and the original degree of moisture penetration - can take up to two years. - If ISOTEC renovation plaster is applied to the inside of the basement walls as a supplementary measure after the exterior waterproofing, the basement rooms can be used to a high standard more quickly. - An exterior waterproofing from ISOTEC offers the highest safety and quality standards with a two-component waterproofing system. The two-layer application with full-surface reinforcement or fabric insert creates a waterproofing system that meets the highest requirements for waterproofing against moisture penetrating from the side. The substrate preparation is also the be-all and end-all here, but of course also the use of the right waterproofing material. - The ISOTEC-VAS and the ISOTEC-Kombiflex waterproofing have been specially developed for waterproofing damp-through building components in contact with the ground and are used here because of their reaction time. The ISOTEC combiflex waterproofing is UV-resistant and the fast drying time allows the excavation pit to be backfilled, depending on the project, after just 24 hours. This means that you can design and use the exterior surface again after only a short time. ## Lateral moisture penetration | Layer structure ISOTEC exterior waterproofing [](https://www.isotec.de/fileadmin/_processed_/4/4/csm_Aussenabdichtung-Schema-Feuchteursache_d2487e14f4.jpg "title=")[](https://www.isotec.de/fileadmin/_processed_/3/9/csm_Aussenabdichtung-Schichtenaufbau_f2c8f1b55f.jpg "title=") ### What to look out for in exterior waterproofing: #### How is the correct assessment of the existing water impact class ensured? - Through the professional building condition analysis of the ISOTEC expert consultant, all property-specific conditions are taken into account in the planning of measures. #### How is the risk of collapse of the excavation pit prevented? - Taking into account stability and DIN 4124 "Construction pits and trenches, embankments, working space widths, shoring", the outer walls to be sealed are professionally uncovered and the construction site is set up safely for employees and buildings. #### How important is substrate preparation? - Professional substrate treatment is the first step and the be-all and end-all for the subsequent waterproofing. Our highly trained employees ensure that the measures are implemented professionally right from the start. The technical training courses provide our employees with the right know-how to implement all ISOTEC waterproofing systems professionally. For exterior waterproofing, the correct layer thicknesses are also important so that the waterproofing can dry properly and its full waterproofing effect can take effect. #### How is the vulnerable area of the wall-sole connection sealed? - We consider the measures as a whole and the professional sealing in the area of the wall-sole connection is a work step in our system solution for exterior waterproofing. The earth area must be sufficiently compacted and the waterproofing protection layers must be sufficiently dried. We only use materials and systems that comply with the strictest specifications. ISOTEC exterior waterproofing is carried out according to the specifications of the WTA. In addition, ISOTEC exterior waterproofing complies with all requirements of the German Institute for Building Technology. ## Downloads #### for exterior sealing Download information about our solutions. [##### Flyer Außenabdichtung PDF 277 KB](https://www.isotec.de/fileadmin/user_upload/999_zentrale/Handwerk/Abdichtung/ISOTEC-Aussenabdichtung.pdf) # Exterior sealing in Santa Ponsa, Spain If moisture gets into the cellar from the side via the walls, the same damage mechanisms always set in. Our exterior waterproofing provides your building with secure protection against moisture penetrating from the side. Our exterior waterproofing is flexible and watertight under pressure. #### We also offer these services: [##### Interior sealing](https://www.isotec.de/en/workmanship/sealing/interior-sealing "Interior sealing") [##### Mould removal](https://www.isotec.de/en/workmanship/mould-damage-removal "Mould removal") [##### Balcony renovation](https://www.isotec.de/en/workmanship/reliable-balcony-renovation-in-three-steps "Balcony renovation")