Water Proofing

Importance of Roof Waterproofing

March 30, 2021 /

Your buildings’ roofs are the first to bear the brunt of shifting temperatures and climates. They grow cracks over time, which leads to the issue of water leakage.

Water eventually creeps in and spreads out inside the frame through these cracks, destroying the architectural charm and undermining the structural integrity.

Concrete roof waterproofing is needed to shield your room from the dangers of water leakage.

Proven Ways of Waterproofing Roofs

When it comes to roof building, waterproofing is probably the most crucial aspect.

Roofs must be engineered and installed safely so that they are not destroyed by wind or other natural forces, according to the National Building Regulations and Building Standards Act. They must also be waterproof, according to the statute, which states:

.Roofs must be long-lasting and must not allow rainwater or other surface water to penetrate the interior.

.Roofs do not cause any water to accumulate on their soil.

However, the act only covers the essentials. Anyone building can consult the South African National Standard, which outlines how the legislation can be correctly implemented.

The Norm, The implementation of the National Building Regulations Part L-Roofs explicitly covers:

Roof coverings and waterproofing devices, as well as flat roof drainage and waterproofing.

Roof Coverings and Waterproofing Systems

The SANS expands on the law, saying that roofs must be able to withstand rain infiltration to the degree that any water that penetrates the roof in category 1 buildings (see below) does not run down the inside face of walls onto the pavement, or cause damp spots on the ceiling or floor. If water penetrates the roof of some other building (i.e., those that aren’t in category 1), it won’t be intense enough to stream down the inside surface of the roof or drip onto the floor or ceiling.

Roof coverings and waterproofing mechanisms must also be repairable if broken, even if the materials are vintage, according to the SANS.

In addition, roof coverings must be able to resist:

  • temperatures from -10 degrees C to +80 degrees C, as well as quick changes of temperature, without deteriorating
  • the effect UV radiation, without deterioration
  • effects of condensation under the surface
  • chemical attack from basic salt or gas in the atmosphere
  • growth of bacteria, fungi, lichens and so on
  • any penetration or puncturing while the roof is in use
  • movement of the roof structure

Both roof coverings and waterproofing schemes must have a minimum 10-year lifetime. If the structure or device is especially complicated and expensive to repair, it is expected that the components used will last at least 20 years.