In the
Philippines, roofing membranes is still new in the industry:
- Torch-on modified bitumen laid in two
layers and combining a cap layer or applied finishes
- To protect and conserve the bitumen surface
from UV
- Single-layer butyl rubber or EPDM
- Multi-coat liquid-used acrylic or
poly-urethane system
- TPO (thermoplastic polyolefin) – a
single layer adhered and held system with heat-welded joints
- PVC – a single-layer adhered and held
system with heat-welded joints.
Membrane roofing systems might be used to mask and cover a very large roof areas or
complex roof shapes, have a low-profile and unnoticeable finish, can be used
and applied for gutters and can be laid or placed to lower falls than most
other roofing materials.
Any membrane
roofings designed must have a minimum fall of 2° and it is recommended a
minimum 3° fall, in order to, the life of the building or home, the fall will
be preserved, maintained and not be compromised and impaired by any sagging in
the roof or an erroneousness construction.
Before
finalising your design always consult, check and ask the consent of the local
building authorities. Ask for superior and outstanding fall based on their
experience with low-slope roofs.
Other
membrane roofing systems must be submitted for compliance and consent, with
supporting documents, information on performance, durability and
indestructibility, as a possible alternative method.
Roofing
membranes can also be used to waterproof fabric tent roofing, car decks, warm
roofs, green roofs, sunshade roofing and internal gutters even if the roofing
material is totally different from the component materials, for example, a
long-run metal roof draining into a membrane gutter.
