The revolutionary patented system to ensure a watertight exterior balcony balustrade installation.

Currently available to fit the POSIglaze base fix channel and SPIG-LITEadvanced spigots.

Read more about POSIglaze and SPIG-LITEadvanced on our product overview pages, shop the BALCONYseal® in our online store or call us for a free quote today. 

Balcony Seal® is a revolutionary product which provides water drainage and waterproofing on any exterior POSIglaze, R-LOCK base or SPIG-LITEadvanced installation. To the left, you can see how the drain block looks under the SPIG-LITEadvanced and POSIglaze Base Fix.

Most balconies and flat roofs are built with a slight pitch to encourage rainwater to drain towards the edge of the roof. In these cases, the balustrade installer needs to allow for drainage points under the channel, to avoid water pooling around the edge of it. 

The Balcony Seal® system works by subtly raising the channel a few millimeters above the substrate on drain blocks. Notches on the top side of the drain blocks locate into the rebates of the POSIglaze channel, R-LOCK base or SPIG-LITEadvanced, locking it into position before the system is bolt-fixed to the substrate through each block. 

The gaps between the drain blocks are your water drainage channels. The drain blocks are subsequently filled with sealant to create a fully waterproofed balustrade installation. The system works best when a rubber waterproof membrane is applied to the surface.