August 13, 2023

The Best Skylight Service in NYC

Skylight Services 

A skylight (also known as a roof light) is a roof opening designed to let in natural light and provide ventilation. They are typically made of transparent or translucent glass.

Skylight History

Open skylights were used in Ancient Roman architecture, such as the Pantheon's oculus. Glazed 'closed' skylights have been used since the Industrial Revolution when advances in glass manufacturing were made. Since the mid-twentieth century, mass production units have brought skylights to a wide range of applications and contexts. As a result of efforts to conserve energy, skylights have received new impetus, design innovation, transmission options, and rating systems for their levels of efficiency.

Prior to the Industrial Revolution, Spain and France were most likely the leaders in architectural glass technology. One of the earliest examples of a glass skylight can be found in the Chapel of the Constable at Burgos Cathedral. Another early example of a glass skylight can be found at the Palace of Versailles in the Galerie des Batailles, which Louis Philippe added to the existing palace in 1830. The Halle aux blés (Paris), built between 1763 and 1767, is another example of early sky lighting technology. This type of natural overhead lighting provided illumination while decorating the entire interior wall, and it is the option least obstructed by other structures. This means that sky lighting, in its various forms, was most likely invented in France in the early 18th or late 17th centuries. According to architectural glass, the earliest functional skylights would have been formed by glass casting, crown glass (window), cylinder blown sheet, machine-drawn cylinder sheet, or the Fourcault process.

What are the types of skylights?

Roof windows, skylight units, tubular daylighting devices (TDDs), sloped glazing, and bespoke skylights are all examples of skylight systems. Some examples of applications include:

Top lighting and other forms of daylighting are used to let in natural light from the sky above.

letting people inside the building see the outside world and vice versa.

Eco-friendly construction using passive solar heating and manually controlled ventilation and air conditioning.

  • Ventilating solar skylight in sunny Southern California
  • The Münster shopping center's transparent roof
  • Ceiling-mounted, exterior-facing skylight
  • Interior-facing fixed skylights 


Skylight Solar architecture

Residential, public, and commercial buildings all benefit from natural light brought in through skylights. Increasing the amount of natural light entering a building can reduce the need for artificial lighting, save money, and have less of an impact on the environment by allowing for smaller window glazing (side lighting). Daylighting can reduce a building's need for artificial lighting by as much as 80 percent. 

To make the most of natural light, a combination of top lighting (skylights) and side lighting (windows) is ideal.

  • Top lighting can be used to illuminate a building's core.
  • Both indirect skylights and direct sunlight contribute to a continuous supply of daylight.
  • Glare can be reduced, sunlight can be captured at lower angles, and more area can be illuminated with modern transparent and/or translucent glazing.
  • Top lighting from skylights is three to ten times more efficient than side lighting, and this is true even on cloudy days.  

Materials of Skylights

Glass of skylight

All types of skylights have significantly benefited from the many recent advances in glass and plastic infill systems. Some developments improve thermal performance, others aim to protect and make the most of available daylight,  and others aim to improve the building's resilience to fire and other hazards.

Modern skylights with glass infill (windows) usually feature insulated glass units (IGU) with a sealed space between the panes. The NFRC approves of the visible transmittance of these materials. In the coldest climate zones, a triple-paned assembly may be cost-justifiable, but it does come at the expense of some visible light.

In order to reduce the U-factor and especially the SHGC, glass units typically have at least one low emissivity (Low-E) coating applied to one or more glass surfaces. Low-E coatings come in a wide variety, each of which blocks out sunlight to a different extent. The thermal performance of glass-glazed skylight assemblies can be enhanced by using high-purity inert gas in the space(s) between panes and by developing thermally efficient glass spacing and supporting elements.



Plastic of skylight

In many skylights and TDDs, the glazing infill is made of plastic. Domes formed by thermal processes are common in such assemblies, though molded forms also appear occasionally. Skylights with a dome shape are common on flat roofs. Water and embers can easily fall off the dome's surface.

Skylight plastics have been UV stabilized and may also include other technological advancements to improve their thermal properties. Skylights with plastic glazing can be difficult to compare and select due to the absence of standardized methods for determining light transmission.

Most dome skylights' plastic glazing is acrylic. Although glass is the most common glazing material, polycarbonate and copolyester materials are also used in situations where their unique properties, such as impact resistance, are essential.

Rating systems of skylight

Indicator of Visible Transmittance Rating (NFRC)

The U-factor measures how well an assembly insulates against heat loss.

The Solar Heat Gain Coefficient (SHGC) quantifies how much heat is transferred from the assembly's exterior to its interior due to exposure to sunlight.

In the United States, the values for these characteristics are typically expressed as a decimal between 0 and 1, with lower values indicating lower heat transfer rates. The optimum U-factor and SHGC performance will change from region to region. A lower SHGC is more important than a lower U-factor in the sunny southern climate zones. It makes sense to have a higher SHGC and a lower U-factor in the cooler northern climate zones.

A good skylight strikes a balance between a low U-factor and optimal SHGC values, allowing for sufficient natural light to be maintained while keeping artificial lighting to a minimum. Electricity usage can be reduced to a minimum with the installation of automatic light-sensing controls.

Benefits of skylight

Students perform better on tests in classrooms that maximize natural light, according to research. According to other research, exposure to natural light improves both physical and mental health, leading to greater productivity in a variety of settings.  

The United States Department of Energy found that properly utilizing daylight in commercial buildings can cut energy costs by as much as a third. Most modern commercial warehouses and "big box stores" have large skylights installed to cut down on energy costs and improve aesthetics.

Skylight Repair

Instructions for Repairing a Dripping Skylight

There are numerous potential causes for a leaking skylight. While a leaking skylight can be a major headache for a homeowner, it can also provide much-needed illumination. A roof window, Like a skylight, is a great way to let in lots of natural light and breathe some fresh air into your home. While there are no quick fixes for leaking roof windows or skylights, there are a number of do-it-yourself (DIY) methods you can try. If you own a commercial building and don't feel safe attempting the repair yourself, it's best to get in touch with a professional roofing company.

How Many Skylights Have Leaks?

We will analyze the two most common reasons for skylight or roof window leaks in order to better inform building owners.

Frigid Weather Leaks

Condensation is to blame for a leak that only occurs when the temperature drops. Skylights and roof windows let in rain because warm air with a moisture component condenses when it hits a cold surface. Condensation can be detected by keeping an eye on the roof window or skylight in various climates. Condensation can be suspected when clouds form on the ground or when it seems damp outside despite there being no precipitation. Fog on interior windows, the presence of mold or mildew, and flaking paint are additional indicators of a condensation problem. Condensation can form if warm, moist air from activities like cooking and drying clothes isn't removed.

Dripping in the Storm

Leaks become more noticeable when it starts to rain. Condensation is not to blame if your skylight only leaks when it rains. If that happens, it could be due to structural damage or just plain old age, so it's probably a good idea to do a quick inspection of your skylights. Water can seep into your home because the flashing has rusted, the caulking has shrunk or cracked, or the seals have rotted. If you feel unsafe inspecting the roof for any of the issues listed here, it is recommended that you contact a roofing contractor. Skylights and roof windows age over time, and if you discover the problem is the flashing, you may be forced to replace the entire skylight or roof window. Caulking or exterior silicone can be used to seal any tiny cracks or gaps found in the flashing. Keep an eye on the skylight or roof window for a couple of weeks to make sure the fix works.

Skylight Frame With a Leaking Glass Panel

A roofing issue is not a skylight issue if water is dripping between the glass and the frame. The weather seals on an older skylight can dry out and shrink, causing leaks. When that happens, water can get in because the seal is broken. To remedy the situation, caulk around the panes of glass. It must be a dry day, and you must have had several dry days in a row, or the water between the glasses will cause condensation.

Skylight Frame Drips Through Roof

If your skylight is dripping, examine the area where it attaches to the ceiling. There's a roof issue if it smells musty or looks wet. Water is getting in because the flashing is deteriorating and failing. Get a reliable roofer's opinion on the matter by scheduling an inspection. Once the problem with the flashing has been established, the roofer can replace it. If the issue stems from the skylight's subpar installation, the roofer is responsible for rectifying the situation.

Flashing Causes Leaks

A skylight's flashing is a crucial part of the structure. The roof sleeve is located in the area between the skylight and the roof cutout. It prevents water from getting in through the skylight insert and acts as a dust trap. Get rid of the clutter so you can see the flashing.

A Guide to Fixing

Skylights and roof windows age over time, and if you discover the problem is the flashing, you may be forced to replace the entire skylight or roof window. Caulking or exterior silicone can be used to seal any tiny cracks or gaps found in the flashing. Keep an eye on the skylight or roof window for a couple of weeks to make sure the fix works.

Roofing or skylight installation that is subpar

The biggest problem with skylights and roof windows is sloppy installation. If you have new skylights or roof windows installed, check them out after a rainstorm to see if they were properly installed. Is water seeping in soon after installation? Have the service provider who did the work return and fix it.

The Closing Mechanism is Broken

The skylight's mechanical prowess can be ascertained with the aid of a quality control test. Throw open the roof and then slam it shut. The skylight's frame must be custom-made to ensure a watertight seal when the skylight is closed. A leak will occur if the opening and closing procedures are faulty.

A Guide to Fixing

If you notice that debris is preventing the skylight from closing properly, remove the obstruction. Keep the area around the skylight clear of debris such as leaves and twigs. You can't always prevent branches and other obstacles from blocking your skylight, but you can keep an eye on the area around the skylight to make sure nothing accumulates there.

Damaged Roof

It's a given that roofs leak. It's possible that the roof is leaking, rather than the skylight. If rain gets on the roof, it will eventually make its way to the skylight, where it will begin to drip into the house. Take corrective action if you notice discoloration near the skylight or higher up on the roof. Damaged or missing shingles on the roof are another red flag. This indicates that water is getting in somewhere other than the skylight.

A Guide to Fixing

Any delay in fixing a leaking roof can lead to more serious issues down the road. Changing out a few shingles that are broken or missing might be all that's needed. However, in the long run, roof restoration or replacement may be necessary, depending on the roof's age. Until a professional roofer inspects the roof, you won't have a firm grasp of the situation.

Recommendations for Qualified Skylight Roofing Installers

Here are some suggestions to help you figure out what's wrong with your roof or skylight and how to fix it.

The Root of the Problem

Most roofing experts agree that a roof window or skylight is the likely source of water between the sash and frame. An improperly installed window may leak between the reveal and the wall. The likelihood of that happening is diminished with an underfelt collar. The source of a leak and the location of its outward manifestation are two separate phenomena. The presence of water inside your home is often the result of water finding a crack or crevice through which to enter. The roof will absorb the water and channel it to an entry point, so the leak and drip points are in different areas.

Skylight Installation

If you just had your skylight installed, the leak you're experiencing is likely due to improper installation.

Installation of a Flashlight

The skylight's flashing kit must coordinate with the existing structure. Having the right equipment will keep you from having to worry about leaks. In addition, the kit must be of a type that is compatible with the roof.

Putting in a Collar Underfelt

Waterproofing requires a two-step installation process. The addition of an underfelt collar, which is a breathable membrane, should provide additional protection against water penetration. Leaks can be caused by improper underfelt installation, and if the underfelt isn't drying properly, it could simply be condensation.

Frequently Asked Questions About Fixing a Leaky Skylight

Can Insurance Pay to Fix a Leaking Skylight?

Normal breakdowns are not compensated for. If a storm or falling tree causes damage to your skylight, the costs will be covered.

The Cost of Fixing a Leaking Skylight?

The answer is going to depend on what needs fixing. The contractor may fix the leak for free if it occurs soon after the installation because the problem was caused by poor installation.

After having a new roof put on, why is my skylight leaking?

There are a number of factors at play here. If the new roof's slope is too shallow or there are gaps or holes in it, water will leak in. Water can seep in under the shingles that have been lifted by strong winds. Depending on the terms of your contract, contacting the roofing company and filing a warranty claim could result in absolutely no out-of-pocket expense.

What Can I Do About a Leaking Roof?

Bring in the buckets because it looks like it might start raining. The next step is to get in touch with a reliable roofing company to send someone out to take a look and make any necessary repairs.

How Professional Roofers Can Fix Your Leaky Skylight

How to Fix a Leaking Skylight: A Comprehensive Guide  If your skylight is leaking or has any other issues, the only roofing company you can trust is Integrity Roofers. For decades, our team has been the go-to when it comes to fixing any issues with skylights. When it comes to fixing skylights, we do it all. We can repair or replace broken glass, as well as install new gaskets and sealants. If your extrusions require attention, we can also replace the flashing if it has failed. We can reglaze your existing glass panels to make them more energy efficient or secure. Please get in touch with us here if you'd like to talk about your skylight. Visit our estimates page for a no-obligation quote, and we'll get back to you as soon as possible.

Setting to Skylight installation

Planning the skylight shaft and installation, what tools and materials you'll need, and detailed instructions for installing a skylight are all covered in this in-depth guide.

What You'll Learn Here:

  • Preparing Materials for a New Skylight installation
  • How to Properly Installation a Skylight 

Even a small skylight can greatly increase the amount of natural light entering a room, making it feel much more open and spacious.

Make sure to think about the sun's trajectory when installing skylights. It is likely that skylights facing north or east will not receive any direct sunlight, but those facing south or west will.

This contractor is constructing a curb and incorporating its flashing into the shingles before installing the skylight.

The contractor is flashing the opening in the roof and constructing a curb around it before installing the skylight.

Velux Windows

On sunny days, a skylight that lets in sunlight will quickly become unbearably hot. Installing a south- or west-facing skylight requires careful consideration of heat gain and loss.

One solution would be to purchase remote-controlled shades or Venetian blinds from the manufacturer to cover the skylights. The use of a ventilating skylight, which can be opened to release hot air, is another option. Browse our guides to skylights, blinds, and shades for more information.

A skylight installed in a room with an attic above will necessitate the construction of a light shaft.

The attic is being used to frame a light shaft that will bring sunlight down from the ceiling. Drywall installation will follow the completion of framing.

The attic is being used to frame a light shaft that will bring sunlight down from the ceiling. A drywall is being installed on the inside of the light shaft now that the framing is complete.

Velux Windows

The angle at which natural light travels is determined by the shape of the light shaft. A perpendicular shaft with vertical sides concentrates light directly below, while a flared shaft illuminates a wider area. More light is directed in the directions in which the flares are present on a shaft that is only partially flared.

Different Shafts of Light

There Are Many Varieties of Light Pipes Don Vandervort, HomeTips

 Preparing to Put in New Skylights Installation

Make sure the load, wind resistance, and other requirements of your area's building codes are met by any skylight you plan to install. In most areas, installation requires a building permit.

Careful preparation is required before installing a roof window in an attic room so that it can capture a view.

The correct installation will depend on the pitch of the roof. A window must be set higher up to achieve the same field of view from a roof with a shallow pitch.

Roof window producers typically supply charts with suggested pitches for installation.

Tools and Equipment for Setup

The following items are required for skylight installation:

Besides the skylight itself, you'll need a frame made from 2-by-4s, ceiling drywall and finishing materials, roofing paper, roofing nails and 16d galvanized nails, step flashing, and continuous flashing.

A circular saw, hammer, flat pry bar, tin snips, and a utility knife are essential tools to have on hand.

How to Properly Install a Skylight Window

Cutting the roof and putting in new structural framing members is no easy task, and neither is putting up drywall and finishing the ceiling below the skylight window.

Incorrect installation of roofing paper and metal flashing will result in water damage around the skylight.

If you're handy with woodworking tools, follow the manufacturer's instructions to the letter; otherwise, get a pro.

The framing inside reveals how the roof joists are built around the skylight window.

Photograph by Juergen Faelchle / Shutterstock

You can get a feel for how much effort is required by reading through these guidelines. There are a variety of flashing techniques and installation procedures for skylights.

Step 1: Make a cut and set up a frame.

Cut the hole in your roof in accordance with the instructions provided by the manufacturer. Drill a locator hole from the inside to mark the spot for the skylight's center, and then use a circular saw to cut out the roof.

Figure 1: Making a skylight opening by cutting out and framing a section of the roof.

Construct the opening using code-compliant framing materials. Before cutting and removing roof rafters, make sure to support their ends. Header joists should be installed at right angles to the other joists, as shown in Figure 1.

In the case of a skylight installed above an attic, you'll also need to frame a light shaft through the attic and a hole in the ceiling of the room below it. A professional builder should be consulted if you are not familiar with basic carpentry practices or if you are installing a large skylight that will necessitate the removal of more than one roof rafter.

2 Remove some roofs and install the dome.

Cut the roof shingles on all four sides of the opening using a utility knife and a straightedge. Install the skylight on the roof so that it is centered over the hole, and secure it in place using nails or screws.

Figure 2: Proper Layout of Roof Paper

3 Put in the subflooring.

Strips of roofing paper cut to a width of 8 inches can be slipped under the shingles to prevent moisture damage (Figure 2). Start with the base, then attach the sides, and finally the top.

To ensure proper water drainage, the down-roof pieces should overlap with the up-roof pieces. It will be difficult to slip the paper under the roof. Carefully pry up any interfering roofing nails with a flat bar, being mindful of the shingles.

Step 4: Flash the bottom and the steps.

The bottom flashing (shown in Figure 3) consists of a single piece that is installed above the roof shingles and partially encircles the skylight. Nails for the roof or flashing should be driven horizontally into the skylight, not up through the roof.

Then, place step flashings under the shingles one by one. On both sides, begin at the foot and work your way up. The pieces of the step flashing need to overlap by about 4 inches. Flashing should be fastened to the skylight itself rather than the roof.

Figure 3: Bottom and Side Flashing 5 Put in the sturdy flashing components.

To prevent water from getting in between the step flashing and the skylight, these pieces are made to fit snugly. Put the base in place before you secure the sides (Figure 4). The head flashing is the top piece that goes under the roof and is attached to the skylight.

Skylight Window

Since the size and shape of skylights can vary greatly, Alluring Window will tailor your skylight window coverings to ensure a perfect fit. You can trust that we will design the best skylight shades for your space, whether it has conventional skylights or skylights designed specifically for a greenroom or solarium. Our solar shades for skylights can reduce energy costs and we offer skylight shades in a range of opacities.

Proven, Skilled, and reliable Professionals

Skylights are difficult to conceal because of their position in the ceiling. Alluring Window, fortunately, has the experience to carry out your project successfully. We are not afraid of challenging window treatment projects, so you can rest assured that our experts will provide a flawless installation of skylights in your home or apartment, regardless of the type of skylights you have or where they are located.

Find Out More About These Skylight Covers

Don't worry if you need to find a way to conceal your skylights. If you need a dependable answer immediately, just give Alluring Window a call. We're a one-stop shop operating out of the five boroughs of New York City.


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