Installation Guide

Ultrasky Diagram

Set-out Dimensions

Rectangular double ended rooflights with a width from 1000-2000mm and a length from 1500-4000mm*

25 degree pitch to all four sides

The set-out dimensions of the Ultrasky roof lantern are measured to the external wall of the timber kerb, 150 mm high x 70 mm wide (not supplied), and NOT the size of the cut-out in the flat roof

In most cases therefore the dimensions of the lantern are calculated as follows:

Length = Length of hole + (2 x Kerb Width)
Width = Width of hole + (2 x Kerb Width)

Example:

Hole 1000mm x 1500mm
Kerb Width 70mm

Overall Dimensions of Lantern: 1140mm x 1640mm

Our roof lanterns are manufactured on demand and therefore we can offer bespoke sizes, should a specific size be required.

*Width and length are defined as being to the external faces of the timber kerb.

Installation

A timber kerb of 150mm high by 70mm wide (not supplied) must be fitted around the opening in the flat roof and allowance must be made for an overhang of minimum 90mm as shown in the diagram.

Installation of the Ultrasky roof lantern is a relatively simple process for an experienced installer, and there is a detailed installation guide available here for you to download. We recommend that you take advice from a professional builder or installer unless you are 100% confident undertaking this type of installation project.

 

Please see our Full Installation Guide



Available in a number of bespoke rectangular sizes - ORDER YOUR SKYLIGHT HERE

Simple Ordering Process

Our ordering system is designed to make the ordering process as simple as possible. Decide the size you require, place your order, pay by credit card and select your desired day of delivery. We will call to confirm your order and you can always call us on 01200 452 246 Monday - Friday 9.00am - 5.00pm.

Ultrasky Brochure

Download your Ultrasky brochure or request a copy via post.

Latest Ultrasky News

How does Ultrasky Roof Lantern Installation Work?

18th April 2018

Installing an Ultrasky roof lantern is a simple process for an experienced installer. Some customers with building or glazing experience prefer to install themselves, but we’d only recommend this if you are 100% confident.

Find Out More

Why British Summer is the Perfect Time to Install...

16th April 2018

Summertime in Britain is a wonderful thing. For a few short months, we’re living like Australians, grilling on the barbeque in our shorts and soaking up the rays.

Find Out More

Roof Lanterns use Thermal Technology to Keep your...

9th April 2018

We’ve already looked at Ultrasky’s thermally efficient skylights with conservaglass and how it uses cutting edge technology to retain the warmth of your home and keep out the cold in winter.

Find Out More