Masterseal (NZ) specializes in providing engineered waterproofing solutions

Masterseal (NZ) specializes in providing engineered waterproofing solutions for both commercial and residential applications, throughout the greater Auckland region.

It is our belief that every waterproofing situation is unique, and requires careful attention to material specification and installation. There is no single 'wonder product' for all applications.
To reflect this, we select from a wide range of high quality materials.

Roof Membrane History

Traditionally flat roofs would use a tar and gravel based surface which, as long as there was no pooling of water, was sufficient to prevent penetration. However, these surfaces would tend to fail in colder climates, where ice dams and the like could block the flow of water. Similarly, they tend to be sensitive to sagging of the roof reversing the subtle grading of the surface.

Modern flat roofs tend to use a continuous membrane covering which can better resist pools of standing water. These membranes are applied as a continuous sheet where possible, though sealants and adhesives are available to allow for bonding multiple sheets and dealing with structures penetrating the roof surface. Far more expensive flat roof options include sealed metal roofs using copper or tin. These are soldered interlocking systems of metal panels.