Alton Evolution EIGHT Greenhouse

Alton Evolution EIGHT

Alton Evolution 8ft 7in x 16ft 9in

This 8'7in ( 5.13m) wide model is just superb !

There's a choice of lengths from 6'6 ( 1.97m ) up to 12'9( 3.87m ), then you can add 8ft extension units so there's really no limit to how big you can make it !

Toughened safety glass and screw-in cedar bar capping are standard which ensures the glass stays where it's put ! The gutter, door support and base are long life aluminium construction which are then powder coated in an attractive moss green finish.

The double door has a low level threshold which means there's easy access for wheelchairs and pushchairs ( the staging can be set lower down for wheelchair users ).

The framework is rock solid with its sturdy mortice and tenon construction and it carries a ten year timber guarantee.

Evolution Eight detail

The Evolution Eight can be fitted with a partition to separate the growing area: handy if you want to heat part of the greenhouse to a different temperature, perhaps for bringing seedlings along in the spring.

The cantilever staging brackets are clearly shown in this picture which illustrates that there's plenty of unobstructed space for storage beneath the staging too.

Please take a look at the detail pictures on the other sizes of the Evolution as they illustrate many of the features and options available with the Evolution Eight.

Alton Evolution Guttering and Aluminium Bar Capping System

The Alton Evolution Guttering is an attractive moss green finish aluminium extrusion and is supplied with a downpipe for each side of the greenhouse.  

The external capping over the glazing is showing the optional green aluminium bar capping which is totally maintenance free ( except for a bit of a wash down every now and again ).

In particular please note how the toughened safety glass extends beyond the cedar eaves bar, discharging water directly into the gutters rather than allowing it to run across the cedar itself.

Alton Evolution Cedar Bar Capping System

This picture shows the standard external cedar bar capping which is supplied with each Evolution unless you opt for the green aluminium bar capping. It is screwed in place and holds the glass firmly and securely.

Alton Evolution Staging and Shelving

Alton Evolution staging and shelving is finished in moss green powder coated finish and just needs a wipe down to keep it clean and tidy. The cantilever brackets leave room beneath the staging for storage rather than having staging legs in the way.

Alton Evolution Framework

The Evolution has been developed in the UK in our fully equipped workshop with the latest technology.  We have to confess though that one or two of the machines have been reliably making other Alton Greenhouses for over 40 years !

The jointing system is incredibly strong and makes the Evolution rock solid once assembled... so it will cope with almost anything the British weather cares to throw at it !

Constructed in long -life cedar sections these greenhouses do not compromise by using thinner glazing bars; they are machined from 44mm x 44mm cedar  (and 44mm x 69mm sections in places )

Mortice and Tenon Joints

These are the reason behind the superior strength of the Evolution.

You would expect any timber greenhouse to be built this way but in fact many others simply butt joint and nail the components together.

Alton Evolution Base

Aluminium is rot proof, maintenance free, rigid and easily assembled ... that's just 4 reasons why it makes an ideal greenhouse base.

Normally you won't find it used as a base on cedar greenhouses because it doesn't match up with the rest of the building.

The Evolution is a special case ; because the components in the areas where the weather or watering takes its toll ( the eaves, base, staging, shelving, door support track ) are all constructed in aluminium, then powder coated for life with an attractive moss green colour, the base doesn't look out of place.  Add to that the convenience of setting the greenhouse up in the first place ( rather than trying to lay out concrete blocks for instance ) and you'll see why this is so popular.

Downpipes

A downpipe is provided for each side. There's a 45 degree bend suppied too, either to discharge water at ground level or to create a joint higher up the pipe to divert water to a barrel.

Low Threshold

A single door is standard with the Evolution Five and Six.  The Eight, Ten and Twelve have double doors.  All sizes have the low threshold shown in the picture.

This makes it easy to wheel a barrow in and out or provide access for wheelchairs and pushchairs.

The single door access width is 560mm ( 22" )

Ridge bracing, blinds, autovents

The wider Evolution models have eaves and ridge braces in the following quantities :

Evolution Eight : 4 eaves braces and 2 ridge braces on the 10 & 12 ft long. 8ft extension also has the same: 4 & 2

Evolution Ten and Twelve : Eaves and ridge braces on every bar (and thicker roof bars). From this you will realise that the photo is one of these ! Please note the quality of the jointing from the picture.

Also in the picture are two roof blinds. You can see the black cartridges that the blinds unwind from so they are neat and easy to retract when not required.

The picture also illustrates that each roof vent is supplied with an automatic opener. Without these you can get to your greenhouse even early in the morning and find your plants keeling over from the heat. The autovent is a wax filled cylinder which forces a piston to lift the vent as the cylinder heats. They are adjustable and therefore a very effective way of maintaining an appropriate temperature inside your greenhouse.

Internal roof blinds for Alton models

This example of Alton's internal roof blinds shows the degree of shading achieved to good effect.

The blinds retract on a sprung top rail.

GBC...here to help you

GBC have branches all over the country displaying our buildings and offering help and advice to our customers.
Established in 1986, we are real people with our feet on the ground and with a real investment in and commitment to our buildings.
We are not an anonymous internet site.
Please give us the opportunity to assist you in buying the building of your choice ... contact us by freephone, email, our live website chat or call our branches direct. You will find all of these contact opportunities in this website. We look forward to speaking to you