
The waterproofing compound of the Slab Seal Below Grade Membrane is made up of a mix of empty residue distilled bitumen modified with SBS thermoplastic rubber based on radial elastomers, synthetic rubber and stabilizing aggregate fillers. The compound is thermally stable, very elastic and flexible at low temperatures.
The reinforcement used for the Slab Seal membrane is made up of a non-woven polyester mat stabilized with glass fibres, which, gives to the product very good mechanical and breaking elongation characteristics, as well as very good dimensional stability. Such characteristics allow to use these membranes on mechanically and thermally stressed surfaces.
Slab Seal Below Grade Membrane is treated on the upper side with non-stick filler; other finishing such as polymeric film and non-woven non stick polymers may also be used. The lower side is finished with PE torch-on film.
The Slab Seal Below Grade Membrane is designed to be used in conjunction with The Slab Seal Protection Board, the system is used as a waterproofing layer for footings and below grade applications, where the membrane will require protection against humidity from soil.

With The Garland Company’s total commitment to providing, innovative products technical design and workmanship to the highest standard it is natural that all systems and applications are backed up by long standing, credible guarantees.
In the knowledge that the correct installation of systems is a critical step in ensuring long term performance, Garland will only recommend contracting companies whose attitudes towards site performance and customer care are in line with the same high principles as their own.
In order to fully understand your project, your Garland Regional Technical Manager will thoroughly inspect your existing roof. Examining the construction and condition of the insitu system as well as identifying any associated construction problems.