Knowledge Builders

what is a mull on a window

by Roxane Hickle Published 3 years ago Updated 2 years ago
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The combining of multiple windows in large openings is called mulling. Mulled sets require windows to be permanently attached together during installation. Windows are mulled together with mull strips through the interior and exterior accessory pocket on all Ringer Windows.Dec 9, 2019

Full Answer

What is a mullion in a window?

Mullion: What’s the Difference?

  • Mullions and Muntins. What is the real difference between muntin and mullion? The difference is significant, so it is important to pay attention.
  • Mullion Architecture. Many people are impressed by the windows that they see throughout the history of architecture. ...
  • Muntins in History. In today’s modern world, muntins are relatively thin. ...
  • Muntin vs. Mullion. ...

What in the world is a window sill?

A window sill is part of the window trim, the decorative covering around the window's edge that protects where the window attaches to the wall and prevents drafts and moisture from getting into the home. The window sill is the flat piece at the bottom of the window.

What is a mulled window?

Simply put, window mulling is the process of joining two windows together. Mulled replacement windows are connected to each other by their frames. What are the benefits of having two separate windows combined? The Advantages of a Mulled Window

What is a mulled window unit?

A mulled window unit is a window unit containing two or more single windows joined together. Mulling creates a larger window that often shares the head and sill to give it the look of a single unit. Multiple window sizes and shapes can be combined to create a unique look.

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Can any window be mulled?

Factors to Consider Before Mulling Windows Take note, however, that not all windows can be mulled—the pros will have to take the window glass and the size of the windows into account. Your home's walls may not be able to support a mulled window if the combined replacement units are too big or heavy.

How do you mull two replacement windows?

2:247:25How to Mull Two Vinyl Windows Together - YouTubeYouTubeStart of suggested clipEnd of suggested clipIn strip gets in just make sure pound. It down on both channels. Okay make sure there's your window.MoreIn strip gets in just make sure pound. It down on both channels. Okay make sure there's your window. You don't want them to be offset. Take your cutters in cut the strips off then at this point.

How do I install a mull Kit for windows?

0:304:04MULLING INSTRUCTIONS FOR LANG EXTERIOR WINDOWSYouTubeStart of suggested clipEnd of suggested clipBefore you begin with a helper holding the window upright. Apply a generous bead of caulk to theMoreBefore you begin with a helper holding the window upright. Apply a generous bead of caulk to the external side of the master frame that will be mulled. Using the included roll of insulation.

What is a mulled double hung window?

Mulling is a process that involves joining two or more windows together. It can be done at a factory or on-site during new home construction, remodel or window replacement projects. However, the complications that come with this design choice make it impossible to combine two oversized windows.

Are Mulled windows more expensive?

Mullions cost more to produce and can save you money by eliminating them from the design plan. An easy way to do this is by replacing two mulled-together windows with one large window.

What is a mull strip?

Mull strip is a relatively thin flat moulding profile which is used in both window and door applications. It is a profile of moulding which is added in order to enhance the aesthetics between the door and sidelite(s) of an exterior door unit.

How do you measure a mulled window?

1:249:24How to Replace Windows in your House : How to Measure for New ...YouTubeStart of suggested clipEnd of suggested clipFrom the outside blind stop which is here - you're inside stop and that's the inside stop Vance takeMoreFrom the outside blind stop which is here - you're inside stop and that's the inside stop Vance take your tape measure and show them the three and a quarter inch pocket.

How do I install mull bars?

5:4814:18Ply Gem Window Mulbar Installation - YouTubeYouTubeStart of suggested clipEnd of suggested clipCheck that the mole bar is aligned properly at each end with the frame of the window as pictured. AsMoreCheck that the mole bar is aligned properly at each end with the frame of the window as pictured. As you progress with the installation. You should hear the mole bar snap into.

How do you mull aluminum windows?

Attach a mull plate to the exterior side of the jamb where the two windows meet. Drill it into the jamb with pan head screws. Remove the clamp that is holding the two windows together. Check to see the window is level and plumb.

Can vinyl windows be mulled?

Field Mulling Vinyl Windows in 4 or 5 Easy Steps. Step 2 - Install (pre-cut to the window size) treated plywood, making sure each piece adheres to the glazing tape. Step 3 - Install the snap mullion (or H mullion) to both the interior and exterior sides of both windows.

What is Mull in construction?

Mulling is the act of attaching two or more window units together. This provides a modern, clean, custom design. Mull Units create a dramatic feature window opening.

Advantages of Window Mulling

Mulling two windows together can either be pre-made in the factory or fabricated on-site during a home remodel or in a window replacement project. One of the many advantages of this is that it creates a large focal point that can help draw more attention to the home’s exterior or serve as the highlight of your interior.

Factors to Consider Before Mulling Windows

If you are planning on replacing windows in your home, you can either purchase mulled windows or have the pros combine individual units into one mulled window. Take note, however, that not all windows can be mulled—the pros will have to take the window glass and the size of the windows into account.

Why A Mullion vs A Muntin

According to the Old English Dictionaries, the definitions of a “mullion” and a “muntin” vary slightly. In 1850 the word “muntin” was defined as a vertical piece of wood that separates panes of glass in a classic multi-pave assembly. Whereas, the word “mullion” is defined as vertical support for two-pane glass assembly kits.

What Are They Called Today

Consider that the terms “mullion” and “muntin” were used over 100 years ago. These are terms that are still understood by window and door manufacturers, however, they are currently grouped under a more consistent term “Grilles.” This is considered a one size fits all kind of term and allows the manufacturer to stay consistent in their production.

How Much Does It Cost To Replace A Window Mullion

Replacing a window mullion is not the easiest thing to do. This is because the glass panes must stay in their spots in order to change out the vertical wood pieces or even inserting vertical vinyl pieces. The cost to do this depends on the professional that you choose to work on the wood.

Other Maintenance For Windows

While you are looking at ways to replace your mullion in your windows, it would be a great idea to check the insulation of your windows and doors at this time. Making sure that they are ready for winter is vital to your energy bill savings.

When Do I Call A Professional

Unless you are a skilled wood craftsman, you will want to contact a professional that can assist you in repairing the wood mullion. This is a very delicate process and unless you have the proper tools or skill set, you will end up doing more damage than good.

Conclusion

Window mullions are nice on old architecture homes but can be difficult to replace. If you aren’t sure what your needs are in terms of replacement or updating the windows then give us a call. Boggs Inspection Services can evaluate your best options during a home inspection in Olympia, Tacoma, and Lacey, WA, and surrounding areas.

What is mulling in windows?

Mulling creates a larger window that often shares the head and sill to give it the look of a single unit. Multiple window sizes and shapes can be combined to create a unique look. Mulled windows are reinforced with a piece known as mulling to provide the extra strength needed to stand up against wind conditions as a single unit.

What is the best material for mulling windows?

The material used to reinforce mulled windows varies according to the reinforcement needs, but aluminum is most commonly used. There are two basic methods of mulling windows. The first uses a T-styled construction shape that contains a continuous head and window sill.

Where is mulling done?

The mulling process can be done at the factory or in the field, with an experienced contractor combining the separate windows together. Factory mulling is generally considered to be the superior method, as the factory uses experienced assemblers, whereas field contractors may be inexperienced at performing the job.

What is a mullion in a window?

Generally, mullions are the single vertical bars that separate two sides of a single window . The Oxford English Dictionary calls a mullion "A vertical bar between the panes of glass in a window.".

What is the difference between a muntin and a mullion?

Muntin vs. Mullion. In the truest sense, muntins are the vertical pieces of wood separating panes of glass in a classic multi-pane glass assembly. Mullions are the single vertical supports used in two-pane assemblies.

What is a Muntin?

Muntin refers to the vertical dividers that separate glass panes in a window. Muntin applies only to the inner vertical pieces; the outer pieces that form the frame are stiles and rails.

What does "Muntins" mean?

Even though muntins today are most frequently associated with windows, they can mean any kind of vertical divider, whether for windows, wood panels, furniture, or doors. As far back as 1688, the writer R. Holme referenced "moontans and panels.".

Why did early builders use Muntins?

Early builders used muntins not for looks but because they were structurally necessary. Early buildings' outer walls could not carry the weight when large windows were placed in the walls. Muntins allowed for weight to be transmitted vertically.

What are the elements of a grill called?

Major window manufacturer Pella calls all of these elements a grille, whether muntins, grids, windowpane dividers, or mullions.

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1.What are Mulled Windows? - JELD-WEN

Url:https://inspiration.jeld-wen.ca/2014/12/15/what-are-mulled-windows/

29 hours ago  · Window mulling is the process of joining two or more windows together. This is often done in the factory but can also be assembled on-site as a home is constructed or if you are considering affordable replacement windows .

2.Window Mulling Basics: Advantages & Factors - Windows …

Url:https://windowsbytoll.com/window-replacement-installation/the-basics-of-window-mulling/

34 hours ago  · Window mulling is a process in which two or more windows are joined together by their frames. Today, Windows By Toll, your local source of replacement windows and doors, takes a closer look at its advantages and the various considerations to be made.

3.What Is A Window Mullion - Boggs Inspection Services

Url:https://boggsinspect.com/what-is-a-window-mullion/

32 hours ago  · Did you know that the windows have a mullion? What is a window mullion? It is defined as a vertical piece of wood used to separate two panes of window glass. As you can see by the picture below, there are pieces of wood that are separating the glass pieces. This is because old architecture was unable to use large windows, as they were not produced yet.

4.What Is a Mulled Window Unit? - Reference.com

Url:https://www.reference.com/world-view/mulled-window-unit-d9579026408b5c71

14 hours ago  · A mulled window unit is a window unit containing two or more single windows joined together. Mulling creates a larger window that often shares the head and sill to give it the look of a single unit. Multiple window sizes and shapes can be combined to create a unique look.

5.Window Mullions vs. Window Muntins: Differences - The …

Url:https://www.thespruce.com/window-muntins-and-mullions-1822920

5 hours ago  · Simply put, a transom window is a small window above a door (usually a front door) or a window. Repairing window mullions. Unfortunately, replacing or repairing a window mullion is not as simple as it looks. This is due to the fact that it’s almost impossible to keep the glass panes in place when replacing the mullions.

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