|
Frequently Asked Questions ……………… ?
What is the life expectancy of bitumen based roofing felts as used
on a flat roof?
Based on construction industry experience estimates, life expectancy
ranges from 5 years to 30 years dependent on the actual waterproofing
membrane used, although with good care and annual maintenance it
should last in excess of this.
How can I ensure the materials used
to waterproof and insulate my roof will be covered by a guarantee?
By using a company that is an Approved Contractor of EDS Roofing
Supplies (Midlands) Limited and whose employees are also Approved
Installers, will not only ensure that the EDS Waterproof Membrane
products they use are correctly installed but also covered by an
Insurance Company guarantee. Other types of guarantee are available
when others install our products.
How can I ensure the roofing contractor I use to install the materials used to waterproof and insulate my roof is reputable, trust worthy and will do a good job?
The Names and Address’s of our Approved Contractors and Installers can
be obtained upon request from our company’s Head Office based in Lutterworth.
Included amongst the many checks that have to be satisfactorily passed prior
to becoming and whilst being an Approved Contractor or Installer are those of
workmanship and financial status. Approved status is viewed as form of recognition
within the construction industry and as such highly prized, with those approved
keen to maintain their approval. We do though recommend that prior to entering
into a contract with anyone for your roofing requirements that you make your
own personal checks and seek recommendations into those with whom you are entering
into a contract with.
How many million square metres
of EDS Waterproofing Membranes products have been laid on roofs
in the UK?
In excess of 2,000,000 square meters annually, and this figure
is increasing year on year.
Can I purchase EDS Waterproofing Membranes
products direct from EDS Roofing Supplies (Midlands) Limited?
Yes – Although often the convenience and price that a stockist
of our products can offer together with their local knowledge is
often more beneficial for purchasers of our products.
Do flat felted
roofs need to be covered with stone chippings or slate granules?
No, in normal circumstances only those bitumen felts manufactured
using SBS modified or Oxidised bitumen compounds require protection
from ‘ultra violet radiation’ as given off by the Sun’s
ray. Although stone chippings and slate granules in addition to
providing protection for the roof from ultra violet radiation,
they also providing
a decorative finish and can reduce problems caused by extremes
of temperature and surface spread of flame. Waterproof membranes
manufactured
using an APP modified bitumen compound, although not requiring
protection from the Sun’s rays to the same extent as SBS
modified or Oxidised bitumen compounds, stone chippings or slate
granules do provide decoratively
pleasing finish and can reduce problems caused by extremes of temperature
and surface spread of flame.
What is the difference between chippings
and slate granules?
Slate granules are small flakes of natural slate or coloured ceramics
as embedded onto the surface of some roofing felts during their
manufacture as an alternative to the usage of stone chippings,
which are bonded
to a roofing felt with an adhesive after the felt has been fixed
in place.
What is the fire rating of roofing felt with a slate
granule finish or covered in stone chippings?
F.AA to BS476 part 3. Although this is dependant upon the actual
build-up of the waterproofing system being used.
Do EDS Waterproofing
Membranes products meet the latest European fire standards?
Yes - Special formulation waterproofing membranes are available
which meet all the current European Standards (EN 1187/1, 2 & 3).
Why
do some edsulation insulation products have waterproof membranes
already bonded to them?
To enable a roof to be insulated and waterproofed quicker and safer
than conventinal insulation and waterproof products. edsulation is also a fire retardant product.
What is the ‘U’ value
of a roof waterproofed in EDS Waterproofing Membranes products?
The ‘U’ value as applicable under Building Regulation
is a calculation which gives the thermal loss of heat transmission
in a structure, therefore EDS Waterproofing Membranes products in
particular edsulation, whilst not having an individual ‘U’ value,
will when used as part of a roof construction surpass current Building
Regulation requirements.
Why do EDS Roofing Supplies not promote their single ply products as much as their bituminious product ranges?
As a company EDS Roofing Supplies pride themselves on being able to supply its customers with products of unquestionable first class quality and not prone to any form of failure. All the products that we supply are recognised by construction industry professionals as being of premier grade quality, some bituminious products themselves can be used as a single layer product. Like many others in the construction industry, we believe that a single layer bituminous product 5mm in thickness such as the Scudoelast P4 bituminous waterproof membrane is far superior in all aspects of performance to any 1mm or 2mm single ply type product. It is for this reason that EDS Roofing Supplies (Midlands) Limited divested its self from all its interests in the Polisystem single ply products in 2002.
|
