The Stratus contemporary roof lantern is made of alumininum and is discreet yet stylish. Itand#039;s an innovative thermal system which provides excellent thermal performance, in fact it is up to 65% more thermally efficient than conventional aluminium roof systems helping to keep cool in the summer and warm in the winter. This will keep your heat transfer down, and your heating bills low.External andamp; internal grey aluminium - RAL 7016Hard-wearing aluminium exterior for a premium lookContemporary design and 20-degree pitch with discreet cappings means that sightlines are kept to a minimum - maximising views of the sky66% smaller ridge than standard systemsAesthetically beautiful contemporary design creating a clean and modern look24mm blue-tinted glazing (Bioclean tints also available in Clear/Bronze/Blue/Aqua/Neutral - please get in touch to order)The Stratus Roof Lantern is ideal for modern kitchen diner extensions.andnbsp;Please note - all sizes are external curb measurements.andnbsp;If you have any questions about our range of lanterns or wish to place an order in an alternative size please emailandnbsp;lanterns@profbuild.co.uk.