Roof or attic conversion? Here are some things to think about before installing a skylight.



There are various methods by which we have brought light into our dwellings. Down to little fixed or opening windows installed in an existing roof, these can be complete conservatories created from glass in a slim framework.

Knowing the proper procedure for installing interior lighting is crucial, regardless of how much illumination you seek. While establishing some types of skylights may be simple and inexpensive, others may need extensive custom manufacture and design. Even if you don’t need a permit to do some work, you still need to ensure it complies with your area’s building codes.

Skylights let in natural light, fresh air, and heat. If you install roofing lights in a grid pattern, your roof will become a light board.

Standard buildings lack ventilation and natural light due to the lack of operable roof windows. An opening skylight can transform a flat roof area into a functional and attractive room, which is especially helpful in attic conversions when regular windows are not feasible.

When planning skylights, it’s essential to account for the shape of the ceiling. Internally, narrow forms descending to the eave line provide the impression of light slots. The skylight will look even better once the walls have been plastered and painted.

Setting up a skylight

Skylights are an excellent method to bring natural light and warmth into otherwise dark rooms. The average do-it-yourselfer should have no trouble installing a skylight, especially in a room where the ceiling slopes like a roof.

Consider the size of the skylight you desire before beginning the installation process. Talk to the manufacturer or supplier about your requirements. Read the included instructions thoroughly before attempting to set it up. Remember that you will be cutting a hole in your roof, which could lead to leaks if the installation is delayed due to factors like not knowing how the unit should be installed or missing parts. Keep a tarp and some ropes nearby, just in case.

Nail the skylight down by driving a massive nail through the ceiling. Shoes with solid traction are a must. Get up on the roof, find where the slates must be removed, and then get down. A ceiling hanger or purlin must not be in the path of the skylight.

Mark the frame size that will hold the skylight, then cut the tile battens to that size. Follow the manufacturer’s instructions for cutting the rafters and installing the trimmers. Keep an eye out for any cords or wires. Remove the skylight from its box and any flashings or trimmings by sawing away the plaster.

Make a mark on the ceiling where you want to install the skylight and check that one of its sides will rest on a joist. Hit it in the center with a big nail. Take out the tiles and store them nearby. The rafters and battens must be cut with a circular saw or a handsaw until they are the proper length. Nail at least four 90-millimeter nails into each frame joint to ensure stability.

Cut deeply through the sheet from underneath with a knife before using a saw to make the hole in the plasterboard. The possibility of the lining paper tearing will be reduced. If the opening is correct, the skylight’s side brackets will rest on the frame members.

Place the frame in the designated spot and secure it to the rafters and trimmers with the provided brackets. The roof’s slope at either end must be the same.

Adjust the bottom flashing to fit snuggly against the tiles and curves around the edges. Flash the top, flash the sides, etc. Fix the broken tiles surrounding the roof window. Tile cutters or a carborundum wheel attached to a circular saw might work well. If the latter is utilized, safety glasses and long sleeves are recommended. If you’ve done everything right, the basement won’t get flooded. Before installing a roof window, ensure you’ve read and understood the manufacturer’s instructions, then place the window in the desired location and use temporary fasteners to secure it to a rafter.

Check the skylight’s flatness using a spirit level. If not, pack it securely on the lower side and secure it with screws or nails.

The flashings prevent water from seeping around the skylight and causing damage to the roof. They need to be set up in a way that prevents any damage. Using a wooden block, you can beat the metal flashings into place on the roof slates. Repeat this process until it snugly fits the curved surfaces of the slates. Take your time and avoid any mistakes when installing the top and side flashings. Ensure that every stage has been checked.

Putting up new roof slates is the last outside job. It’s going to require some chopping. Please ensure any leftover debris doesn’t clog the downspouts by clearing them out thoroughly. Plasterboard must be trimmed to fit the space between the skylight’s edge and the ceiling, so be careful to take precise measurements. Use plasterboard nails to secure the drywall. Plastering is made more accessible with metal corner angle joints because they reinforce the junction and provide a straight line to work along. Use a hacksaw to cut them to size, then nail them into position. Apply the cement with a mortar trowel in staggered, progressively broader layers. Make sure that there is absolutely no visible sign of a joint anywhere.


Mark off the appropriate measurements. The top (unlabeled) side should be shown to the world. Make a deep slash down the edge using a knife. Flip the board over and slam your fist on the sheet, holding it by one edge. The sheet will likely buckle under the strain. Cut around the edge of the back of the sheet using a sharp knife. This will prevent tears in the liner paper. Trim and secure the drywall around the roof window. Trim and secure the metal corner reinforcements and round off the edges. To prepare surfaces for painting, one must sand, dry, prime, and paint them.

It’s done!

Contact a professional skylight installer if you’re considering installing a skylight in your attic or roof.

Hull’s East Yorkshire Roofing Services is an established business with 30 years in the roofing industry specializing in skylight installation. Check out their

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