The different types of roof waterproofing membranes are:
(1) Bituminous membrane
It is a hot melt liquid bituminous rubber compound structural waterproofing solution that may be used on high green roofs and podiums to give a smooth waterproofing membrane.
(2) Self-adhesive modified bituminous membrane
Modified bituminous membranes are made of asphalt, polymers, and tackifiers with mineral stabilizers.
(3) Polymer-modified bitumen membrane
On the bottom, a plastic film with special graphic elements is applied, and on the top side a similar film is used. The bitumen-polymer modified sheet membrane has greater flow resistance, allowing it to be used in extremely hot conditions.
(4) Thermoplastic membranes
It is a polypropylene-based polymer that is often bolstered with polyester. UV absorbers, colorants, flame retardants, or other additives may be included in TPO sheets to get the desired physical characteristics.
Thermoplastic membranes may be less expensive than other roofing choices. When it comes time to repair a business roof, TPO is often seen as a lower-cost alternative.
(5) EPDM membrane
EPDM membranes are bonded with bonding adhesives. The procedure is simple. They come encased in a single component cementitious, polymer-modified non-reactive selective fiber-reinforced repair mortar that has excellent properties and resistance to corrosion and carbonation, as well as shrinkage cracking.
(6) Liquid applied membranes
The liquid-applied membrane is a monolithic, fully-bonded, liquid-based coating that can be used for many waterproofing and roofing projects. The elastomeric waterproof membrane hardens to form a rubberlike elastomeric waterproof barrier after curing, and it may be applied to numerous substrates.