Ultralite 500 Glazing Bar Top Cap Ultraframe Lean-to Conservatory Roof Cappings

Fitting & Usage

Before purchasing, we recommend that you check compatibility. These cappings are manufactured by Ultraframe for their Ultralite 500 lean-to conservatories. To identify your conservatory roof system, refer to any installation paperwork. Ultralite 500 can be used at a very low pitch, so is commonly used in situations where height is restricted, such as alongside a bungalow. Although it looks quite unique, with it's 60mm thick and 500mm wide panels, similar systems exist and can cause confusion. If you would like help to confirm whether your roof is Ultralite 500, email a couple of pictures.

Choosing the correct capping

Cappings between two inline panels are known as Intermediate Top Caps, whilst cappings at either end of a roof are called Starter Top Caps. There are two types of Starter Top Caps, one for use on the dedicated Ultralite 500 Firring (a 2.5° triangular PVC-u wedge above the lower frame or wall), and a non-firring version that is used without the dedicated firring, typically over a timber wedge.

The correct replacement capping can sometimes be identified by referring to manufacturer part codes printed on the underside of the existing capping. If you do not see any codes, or are reluctant to remove the cappings, then you can compare the profile of your existing capping to the profile drawings shown above.

Fitting the Ultraframe Ultralite 500 Glazing Bar Top Caps

Once cut to length, using an electric chop saw or fine-toothed handsaw, the capping can be easily fitted to the aluminium glazing bar upstand, without any special tools. Simply align the end of the capping with the end of the bar, and knock hooked legs of the capping into the barbed aluminium upstand. This will ensure watertight compression of the top capping flapper seal against the glazing material.

How to Remove Existing Cappings

Removal of existing cappings can be difficult, but there are tools and methods that will help. The top capping legs that lock into the aluminium glazing bar, will need to be unhooked. The Ultraframe Glazing Bar Capping Removal Tool can really help with this, as it features two vertical blades that insert into the end of the bar to release the legs, and then allow an upwards motion to pull the capping out. Long nose pliers, or two flat screwdrivers, can be used in absence of the removal tool. A gasket that may have become stuck to the glazing material can be freed by running a putty knife, or similar, up the length of the capping.