glass steel balustrades firestone rubber roofing

How to fix balustrades to Firestone Rubber Roofing

Sunrock solve the problem of how to fix balustrades to Firestone Rubber Roofing, a single ply membrane used to waterproof a flat roof.

Creating a balcony or decking area using glass balustrades with stainless steel posts on a flat roof with a Firestone rubber roof, or any other waterproof membrane, has its problems.

Care must be taken not to pierce the waterproof membrane otherwise it will compromise the warranty. Which means that we can’t attach the steel posts ¬†on top of the Firestone rubber membrane.


To get round this, Sunrock fix balustrades to Firestone rubber roofing by using longer stainless steel posts. These attach to the wall below. In this case a rendered wall on one side and on the other, a gutter board.

fix balustrades to firestone rubber roofing

fix glass balustrades to firestone rubber roofing

Furthermore, this will work with any type of waterproof flat roof / membrane. Please always seek the advice of your Builder.

Do you prefer Infinity glass balustrades rather than our Barbican glass and stainless steel balustrades? If so, we now have a method of attaching the infinity glass to a waterproofed flat roof using a special fixing ‘The Infinity Glass Blok‘ that allows water to run off and does not attach directly / pierce the waterproof roof.

Infinity glass balustrades with new Blok fixing

The Infinity Glass Blok

Sunrock have added a new type of fixing for Infinity glass balustrades – The Infinity Glass Blok

This new stainless steel fixing Blok allows water off waterproof flat roofs. Furthermore, it is a more minimal design than Infinity Glass Buttons, which allows the glass to be the star rather than the fixings.

Infinity glass balustrades with new Blok fixing

Infinity glass balustrades with new Blok fixing

glass balustrades with Blok fixing


Normal fixing for Infinity glass balustrades is in a channel. This is usually top or face fix directly onto the balcony or patio/decking area. So up until now, Sunrock could not attach these frameless glass balustrades to a waterproof flat roof, as water can’t run off on.

However, this new ‘Blok’ type of fixing solves the problem by allowing water to drain off. This is achievable because the Infinity glass blok holds the glass balustrade away from the edge of the building, therefore letting the water drain off rather than trapping it.

Infinity glass Blok

Infinity glass Blok

Infinity glass Blok fixing

Infinity glass Blok fixing for Glass Balustrades

So now we can install Infinity Glass Balustrades onto a waterproof flat roof. If you prefer to have glass and stainless steel balustrades on your waterproofed flat roof balcony we can solve that problem too – please contact us

Here are some examples of the new fixing

infinity glass balustrade steel block fixing

An example of the stainless steel block fixing for infinity glass balustrades

barbican glass balustrades grannys bay lytham

Sunrock Update Balconies on Seafront Apartments in Lytham St Annes

Using the latest Glass and Stainless Steel Balustrades, Sunrock transforms these seafront balconies with this modern update.

The project, updating the 12 seafront balconies, over 4 floors on apartments in Grannys Bay previously looked like this:

Old balcony balustrades on seafront apartments in Grannys Bay, Lytham St Annes

and now looks like this!

update balconies on seafront apartments lytham

Furthermore, the apartments on the ground floor have balconies with glass and steel balustrades with no handrail, while the first, second and third floors have balconies with steel handrails.