WATERPROOFING – EXTERNAL WALLS OF BUILDINGS

Water discharge or additional unconditionally wet ingress in buildings results in damp, uncomfortable internal environments; deterioration of internal finishes (including mould growth); unpleasant damp areas on wall and ceiling surfaces and multiplied concentrations of harmful pollutants moving occupant’s health. The exclusion of wet from buildings is thus not solely fascinating however conjointly AN utmost concern to the residents of the buildings.

Water seepage through external walls

In Mumbai, because of a significant downfall, water flowing through external walls is found to be a standard defect faced by the householders.

In general, watercourse through external walls at intervals the primary 5 years of building completion. the matter is additionally combined by Mumbai’s high wetness and copious downfall. the current of airspeeds intimate with high-rise buildings additionally increases the chance of water oozing. Building envelopes should, therefore, be adequately designed and made to stop the ingress of water.

General reasons for water seepage through external walls:

Joints and cracks in the walls
2. Absorption and permeation of the materials
3. Construction joints in the walls
4. Penetrating dampness
5. Rising dampness due to capillary action
6. Poor construction practices
7. Honeycomb structures in concrete or plaster.
8. Separation gaps

Waterproofing systems and materials for external walls

Water tightness of external walls is typically achieved by providing adequate wall thickness, correct coming up with at construction joints, and surface rendering and finishes that function as a barrier against water ingress. Generally, no consideration is paid towards significant regions like partition holes, honeycomb zones, sodden verification courses at the platform level, etc. This results in serious leakages through external walls and damages to high-priced internal paints & finishing.

Significance of external wall coating

Use of SUNANDA Polyalk WP and SUNANDA Polyfill AR.

SUNANDA, Polyalk WP waterproofing coating can be applied on all types of exterior concrete surfaces.

Features and Benefits of POLYALK WP:

Confirms to I.S. 101Tested as per DIN 1048 for permeabilityHigh flexural strength and extraordinary adhesionAlkaline and compatible with concretePrevents carbonationCan be used as a base waterproofing coat

Features and Benefits of POLYFILL AR: 

Crack filler for plasters, IPS, cement sand screeds, and non-structural cracksNo need to OPEN the crack – due to the auto suction property of POLYFILL AR

4 best simple steps for waterproofing external walls