With an exceptionally low U Value of 1.3, exceeding Part L requirements, this model from Xtralite represents the future of rooflights. The X-One also benefits from high thermal performance. Unlike other rooflights, the X-One rooflight is designed and constructed in three distinct zones to clarify specification and maximize performance and flexibility (see diagram below). Waterproof Rooflight Glazing System  The X-One is triple glazed as standard and formed from enhanced UV protected polycarbonate with breathing airspaces between the glazing elements. The integral cascade water management system ensures that moisture drains to the outside of the building removing risk of leakage.

Rooflight Accessory Frame   The rooflight accessory frame is the key element which ensures Part L compliance and gives X-One its unique environmental efficiency. The frame is constructed from a single, highly complex, PVC profile designed to efficiently ‘dock’ between the glazing module and either the kerb adaptor profile or the kerb, creating a secure, weathered and warm connection with no cold bridges.  The accessory frame arrangement is flexible depending on the specifiers requirements. For example it can include a unique continuous hinge manual or electrical opening, allowing for high volume air ventilation. A PVC extruded profile rotary ventilator system can be mounted in the sidewall of the accessory frame. The cylindrical profile protects it from the outside elements using a continuous cowl feature and integral insect mesh. The vent design ensures that no cold bridging occurs between the outer and inner surfaces. When the vent is closed it forms a virtual triple skin chamber with very low air leakage and exceptional sound reduction performance. The ventilation system is simply operated by rotating the operating handle.

Flexible Rooflight Attachment   Xtralite have developed unique rooflight mounting systems to aid attachment and make the process of incorporation easy. A versatile metal foot will allow for a variety of thicknesses of roof insulation, whilst allowing ‘flexible’ matching of rooflight to roof opening as well as ‘cut to falls’ variable depth insulation systems. Fixing direct to the roof deck allows for the kerb to be attached direct to the supporting structure which could be above the insulation layer or by using a kerb adaptor direct to any pre-constructed builders kerb.

 For details of the Xtralite X-Two Rooflight click here
For details of the Xtralite X-Three Rooflight click here
For details of the Xtralite X-Four Rooflight click here
For details of the Xtralite X-Glaze Rooflight click here

If you would like assistance at any time about any of the rooflights or would like further details of our range, then please do not hesitate to contact us on
01276 451555, e-mail us at info@nationaldomes.com or use this e-mail form
to contact us.