In Our high energy cost environment, Insulating your flat roof properly is not only required by UK law it is a positive way to improve your flat roofs ability to retain heat and save money, to that end the VAT rate on this up grade only attracts a 5% VAT rate.
There are a number of different ways to insulate your flat roof based on the type of roof and the level of efficiency you want
to find out more call Us today Freephone 0800 098 827 for a no obligation free survey,advice and quotation
orclick here to contact us Nationwide Coverage.
Testimonial: Mr Antony Guy
I mentioned the excellent quality of your team's workmanship and the how the insulation was proved very effective in the snow early in 2010 as these pictures show. Again, many thanks.
Neighbours roof 6 days after the snow fell, melting in most places. The roof had been reroofed 6 months earlier, the fabric was rubber based and no insulation had been added.
Our own roof, newly fitted with County Flat Roofing's WarmRoof Insulation System, 6 days after the snow fell and you can see the snow is still as deep as the upstand.
Since April 2006 an existing flat roof has been required to comply with rigorous U Value targets, based on the event you're refurbishing more than 50% of your roof, using a warm roof system is often the most efficient way to achieve the results required.
All new-build flat roofs require a warm roof construction
to comply with Part L. The traditional cold roof
construction is not recommended in
Scotland
and is unlikely to fully
comply with Part L "Robust Details".
Composite Sarnadeck warm roof is made from a rigid
insulation board/plywood composite with integral
foil backing that is placed above the roof joists
and onto which the Sarnafil or single ply membrane is laid.
There is
a clear space between the ceiling and the roof
deck. The air remains warm and the foil vapour
control layer protects against condensation. The
system insulates whilst removing the requirement
for ventilating the roof space. This is particularly
important for a flat roof over a kitchen, bathroom
or utility area.
Compare this with the traditional method used
in flat roofing where the insulation material
is placed between the rafters above the ceiling.
Without proper ventilation the warm air condenses
and can lead to rotting timbers and, eventually,
collapse of the roof deck.
The warm roof system is significantly more efficient as a method of insulation compared to the traditional cold roof construction, County Flat Roofing now fit 120 mm thick Kingspan TR26 or 27 as standard when refurbishing an existing flat roof by doing this we avoid any risk of creating a condensation problem and achieve a 0.18 U Value or better.
As
part of the Kyoto
Agreement, the
UK
Government
agreed to reduce emissions of ‘greenhouse gases’
in an attempt to reduce the speed of climate change.
The UK has committed to reducing
emissions by 4.3%, third only to Japan
8.5% and
Germany
7.4%. In the
a large proportion of emissions
are carbon dioxide and, a large proportion of
these are down to the thermal inefficiency of
buildings. Government legislation to reduce heat
loss from buildings is already here.
The requirements of Building Regulations Approved
Document Part L (Part J in
) require that each part
of the building has to adhere to a new higher
thermal efficiency. This measure of heat leakage
is commonly known as the U-value. Many will be
familiar with the current Part L in
England
and
Wales
that
requires windows to meet a U-value of 2.0/m² °C.
In
Scotland
,
Part J, a U-value of 1.8/m² °C has to be met.
For flat roofs the U-value must meet 0.25/m² °C.
Wherever possible,
targets should exceed those required by current
legislation in anticipation of higher standards
being set during the life of the building.
Initial
investment in high standards will be readily offset
by reduced heating and cooling loads and by the
building’s capacity for adaptation to future
change or intensity of use. Such targets should
consider heat loss, heat gain, and the impact
of change of use (for example, increased use of
IT equipment internally and “churn”).
The
roofs of all heated buildings are required by building
legislation to be thermally insulated. The New Approved
Document Part L (2001 Edition) of the Building Regulations
(England & Wales), and Part J (Scotland) implemented
in 2002, define the maximum permitted Elemental
U-value of flat roofs as:
What Our Clients Are Saying About Us... When you invest in a Flat Roof you want to be sure the company you choose has the right experience & you can totally trust.
Save Energy & Money With Your Flat Roof!
For years we’ve been advising our clients how they can save energy and money by having their Flat Roofs insulated properly.
Special Offers & Discounts.
Details of County Flat Roofing’s discounts and special offers available along with our roofing services including new roofs, roof repairs and flat roofs.
County
Flat Roofing of Weston-Super-Mare,
Somerset is your registered Sarnafil,
Alwitra and Cefil single ply flat roof installer.
End your flat roof worries today by calling Freephone 0800 098 8271 for a no-obligation free survey and quotation
or click
here to contact us. Nationwide
Coverage.
Sarnafil assured flat roof contractor, roofing services include construction, repair, material supply and green roofs. Weston-S-Mare, UK
County Flat Roofing are a flat roofing contractor, specialising in metal roofs light, flat roof repair insulation, biodiverse green roof garden system, felt roof construction, covering sarnafil uk, metal roofing material supply, sheet roofing services.
Based in Weston-S-Mare, near Bristol, UK. The company services mainly South West England including Bristol, Bath, Gloucester, Swindon but can cover further afield.
Please call us for a quote / estimate or even roof advice
Glazed conservatory roofs must also adhere to
a given U-value. A debate has recently started
about overheating. While Part L covers heat leakage
it also covers overheating, an inherent problem
with glazed roofs. In warmer weather conservatories
can become very hot. There are many ways to combat
this; tinted glazing, ventilation, blinds but
not air-conditioning if it can be avoided because
this uses more energy than heating the space.
But, without these additions, what remains is
a room that is cold in the winter and hot in the
summer.
Warm
Roof, Cool Room
The light grey Sarnafil membrane has a highly solar
reflective surface. This means that less heat is
absorbed on hot days helping keep the room below
comfortably cool. As many flat roofs are installed
over habited roof spaces, dormers or attic conversions,
the benefits of heat reduction in summer and heat
insulation in winter are clear. That is why Sarnafil
membranes are chosen for extremes in climate from
the Winter Olympic stadium in
Utah
to the Arab National Bank in
Saudi
Arabia
.
