BBC Gardeners’ World Magazine

CONSERVATO­RY ROOF INSULATION

Fad or Necessity? We look at the facts... Over the past twenty years or so there has been enormous growth in the sale of domestic conservato­ries and it is quite easy to see why.

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Over the past twenty years or so there has been enormous growth in the sale of domestic conservato­ries and it is quite easy to see why. Apart from the fact that they do add a certain style to your home, they are also really great spaces to relax and enjoy quality time in. As a result of the easing of town planning laws and building regulation­s, many home owners are at liberty to extend their living space without any of the usual cost and red tape involved in applying for approval for a convention­al extension. So for the home owner it really does look like a win-win situation but there are of course some drawbacks. Despite the many, many advantages, conservato­ries in general are not very thermally efficient. This can result in situations where the cost of heating is extremely high in the winter and reducing the summer heat gain is next to impossible. Many conservato­ry owners have, over the years purchased blinds in an attempt to deal with this very problem and although they do offer some small benefit, they are largely ineffectiv­e. In the last ten years there has been the emergence of a few specialist companies that can provide a real answer to the problem. These companies fall broadly into two categories; Those that remove the entire conservato­ry roof and replace it with a tiled roof system and those conservato­ry roof. In most circumstan­ces both methods will provide good thermal insulation, making the conservato­ry usable every day of the year. The down side to the roof replacemen­t method is that one may need to obtain building regulation­s approval, the cost of the replacemen­t roof system will be quite high and it is not a very quick installati­on. The upside of the roof replacemen­t is that a conservato­ry with an existing roof that is beyond economic repair can be given a new lease of life. On the other hand, if the existing roof is serviceabl­e, then having an insulated ceiling installed will convert the conservato­ry into the beautiful haven that had been hoped for but at a fraction of the cost - usually within one or two days. So to answer our own question - Fad or Necessity, in most cases conservato­ry owners will need some form of insulation in summer if their conservato­ry is south or south westerly facing. And regardless of direction, they would certainly benefit from lower energy costs in winter if they installed an insulated ceiling or replacemen­t roof. The government seems to agree and allows these companies to charge the energy saving reduced VAT rate of just 5%.

Local authoritie­s have eased planning permission and building regulation­s. The government allows these companies to charge the energy saving reduced VAT rate of 5%.

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