Gardens are one of the most complex areas when it comes to waterproofing as it not only deals with the presence of moisture throughout but also the roots of the plantation which are tough enough to penetrate through the concrete structure if not treated rightly. It is often seen that if such critical areas are not waterproofed well, the leakage through the terrace/podium garden can causes severe dampness in the ceilings, thus spoiling the overall look of the interiors.
Garden/Planters/Landscape areas – such structures need to be waterproof as well as root resistant in order to avoid any kind of seepage/ leakage since they are exposed to water are regular intervals and during monsoon.
Recommended Solution by Aquaseal-
1) Polyurethane coating system- They are of two types –
a) Pitch modified PU– Pitch is a resin such as bitumen, coal tar etc. which when combined with PU forms such a system. These systems are used as an under coat in case of large span areas, they have high elongation and are very tough.
b) Pure PU
Prior to application of these systems, the surface must be clean and sound as per checklist i.e., all joints, honeycombs and hollowness must be packed with PMM (Polymer Modified Mortar) /Non-Shrink repair mortar. Angle fillet min 50*50mm must be made all along the corners using PMM. Bore packing must be done using non shrink grout like GP2. Surface must be completely dry. (Moisture content must be lower than 8%)
If in case concrete is not fully dry, a water based epoxy primer can be used.
Cracks, voids, pin holes etc. should be repaired using PU Sealant post application of primer only.
When applied to areas with vegetation, a drain cell/drain board/dimple board wrapped with geotextile must be placed post protection of treatment.