Sunday, 29 July 2007
Tri Iso Super 9 - Heat Insulation and Thermal Reduction System
Tri-iso super 9 is a very reductive heat insulator, excellent for domestic application.
The Product is easy to install and works very effectively. You can buy the product in rolls of 10m2 or 20m2.
Because of the way Tri-iso super 9 is installed it means that the product is able to: Stop the cold in winter and reflect the heat of rooms back inside.
Reflect solar radiation back outside in Summer, thereby preventing overheating of attic rooms.
BENEFITS
Seals roof against wind and damp, whilst retaining ventilation.
Retains more warmth in winter.
Prevents lofts overheating in summer.
Saves valuable living space.
Beams and rafters may be left exposed.
SANDWICH COMPRESSION CHARACTERISTICS
14 alternating layers.
2 tear-resistant reinforced reflective films.
2 layers of soft, flexible wadding.
6 layers of closed cell foam.
4 internal reflective films.
Characteristics
Uncompressed thickness: 25mm
Equivalent to 200mm of traditional thick insulation.
Acoustic reduction:
RW:61 db
Fume classification:F1
(NF 16-101).
Roll size: 1.58m x 6.33m long = 10m2
Weight: 7kg
Roll size: 1,58 x 12.66m long = 20m2
Weight: 14kg
Applications
Over/Under rafter.
Loft conversions.
Unconverted lofts/wWalls
The product can be used for wall insulation, roof insulation, and floor insulation.
Roof
For roof use you can use either under rafter or over; depending on
your particular circumstances wall Tri-iso super 9 can also be used for wall insulation.
There are two types of installation for roof application: Under Rafter & Over Rafter. Over Rafter application involves rolling out the thermal insulation martial vertically from top to bottom of the roof. And then staple to the joists every 50cm. You then need to ensure that the overlay widths are overlaped by 5cm to 10cm. Then cover the joists with jointing tape. Fix the cross battens, breathable roof underlay, counter battens and tile battens before attaching final covering.
Under Rafter application involves rolling out the thermal insulation martial vertically from top to bottom as with the over rafter. Then staple to the joist every 50cm on the underside of the rafter, Then ensure that the overlap is between 5cm to 10cm and then tape the joints. At the bottom of the roof pitch , staple the insulation directly onto the timber wall plate.
For plasterboard lining nail cross battens to the rafters through the insulation and then attach the plasterboard.
Wall installation is similar to roof application. You will need to batten the wall with a minimum batten that will allow a 20mm air gap. The battens will need as an example could be paced 600 centers apart. Then unroll the heat insulation martial from top to bottom of the wall. Staple the insulation product at 50cm intervals on the battens. The overlap required is between 5cm and 10cm and needs to be taped as well for maximum insulation results. To apply plasterboard you will need nail across the battens through the insulation martial to another layer of battens and then attach the plaster board.
Floor application requires a batten frame to be built. This is needed as the product requires a 20mm air gap. This is an important factor so to ensure any heat exchange is made through radiation.
Then staple the insulation product using corrosive resistant staples at 50cm intervals onto the battens & make sure the overlap is between 5cm and 10cm and taped. Then attach the 2nd layer of battens directly above the 1st layer of battens. Then attach the flooring.
Magic Boiler Scheme
By installing simple energy-efficiency measures into your home, you could reduce your fuel bills by up to £200 per year.
To help you make these savings the Magic boiler scheme provides special discounts with various boiler manufacturers and is managed through PTS - Plumbing Trade Supplies.
If you want to buy the boiler yourself, just mention the Magic Boiler Scheme at PTS, or let your plumber know about the scheme and they can gain access to the same discounts.
A £20 cash back is also available when a boiler is purchased at PTS, who will supply you with the necessary application form.
Magic Boiler Pricelist
PTS Plumbing
Rolf Disch has designed a new housewith a solar-collecting array on top that follows the Sun all day long, but the real feat of engineering comes from the structure itself. The entire house rotates on a central axle. The front of the house is composed of triple-glazed glass to point toward that glowing ball of gas in the sky during the winter, while a heavily insulated backside rotates around to keep the heat at bay during those warm summer months.
full article
Saturday, 28 July 2007
Missing carbon mystery: Case solved?
Despite rapid deforestation, Stephen's team also showed that tropical forests are the net source of a mere 100 million tonnes of carbon annually, contrary to previous estimates of 1.8 billion tonnes. This suggests that carbon sequestration in the tropics is substantial enough to almost counterbalance the effects of deforestation. Stephens says "tropical forests are essentially in balance, absorbing as much carbon dioxide as they give off". One reason tropical forests could be absorbing substantially more carbon dioxide than accounted for in the models is the phenomenon known as CO2 fertilization. Trees take in carbon dioxide to grow and when there is more of it they tend to grow faster, being fertilized by carbon dioxide. Also, as temperatures increase with climate change, soil organic matter decomposes more quickly, freeing up nutrients in the ground for forest growth.
Temperate and boreal forests are also being fertilized indirectly by nitrogen, largely from farming and fuel use, according to a study recently published a study in Nature, led by Federico Magnani from the University of Bologna. The study suggests that this is contributing to the carbon sink in northern latitudes, but Magnani says the same could not be true for tropical forests, where phosphorous and not nitrogen determines growth. He says that to understand what is happening in the tropics "we need to know how much of the carbon sink is the result of vegetation regrowth following deforestation, and how much of it comes from substantial carbon sequestration by primary forests". Manuel Gloor of the University of Leeds, UK, also argues that we need more information before any assertions on the whereabouts of the missing carbon sink can be confirmed. "To really settle the question regarding tropical versus northern hemisphere carbon sinks, a substantial amount of atmospheric concentration data over tropical land will be needed," he says.
Tropical forests are, however, rapidly disappearing. Forests in South America, Central Africa and South-East Asia are being cleared for cropland or cattle pasture, and reduced by the expansion of logging and changing patterns of cultivation. The latest IPCC report on mitigating climate change found that during 2004, the contribution of deforestation — primarily in the tropics — and the decay of biomass to global warming was 17.3% of total global greenhouse-gas emissions. "Cutting down tropical forests not only increases carbon emissions but it also removes a strong sink and its potential for offsetting future emissions," says Stephens.
Whether tropical or northern forests store more carbon might ultimately be academic, though, when it comes to mitigating climate change. Stephens believes that "relying on trees to mitigate climate change is not a good long-term strategy, because the carbon they store gets returned to the atmosphere on a timescale of around 30 years when they die and decompose. Afforestation and reforestation can provide short-term sinks to slow warming and possibly give us more time to find solutions, but ultimately we need to get the carbon into the ocean or geologic reservoirs, or not emit it in the first place".
full article