Updated at: 06-07-2022 - By: cnbusinessnews

If you’re a homeowner, you’re likely to feel a sense of duty toward your residence. This is why it’s important to know how to fix glulam beams that have been damaged by water.

According to home builders, glulam beams are more durable than steel. As a result, they have the same drawback: corrosion from water damage.

When it comes to glulam beams’ durability, stress-bending and fire dangers might cause them to degrade. If you didn’t use waterproof adhesive glue when you fitted it, they could also become wet. This engineering marvel may be repaired with a few simple steps: inspect, repair, and reinforce.

What Is A Glulam Beam?

You may have gone to your grandmother’s house or a nice swimming resort. The lofty ceilings are accented by lengthy wood slats.

Glulam beams are what you’re looking at. Beams referred to as “glulams” are shorthand for glued laminated timber (GLT).

Glulam Beam Structural Timber Repair- TRAC Structural Ltd

Glulam beams aren’t just for the ceiling; they may be used in a variety of ways. The industrial adhesive used to stiffen these wood sheet laminations serves as a structural reinforcement. They can indeed outperform steel in terms of structural integrity depending on the type of lumber.

Stress-bending may be dealt with by glulam beams, hence they are categorized as such. A stamp 15F rating, for example, indicates that the beam can hold up to 1,500 pounds of weight.

Floors, pillars, beams, and ceilings, as well as stairways, are all up to code. In terms of cost, flexibility, and beauty, having glulam beams is a great option.

How To Fix Water Damaged Glulam Beam

Step #1. Inspect the defacing parts

A private apartment repair may be stressful, but inspecting the decaying glulam beams is still necessary. Most of the time, water can seep in between the tiniest of chippings.

Glues used in the manufacturing industry, such as polyurethane and melamine, are capable of achieving this. They can, however, become damaged with time.

Put on some gloves to avoid getting splinters while working with wood. After that, keep an eye out for fungus. If you’re concerned about dust mites, you should also wear a face mask.

Keep in mind that damage near the support beams can be dangerous. Minor water damage, on the other hand, does not necessitate concern.

Step #2. Check the design and materials

Take a look at the designs with your critical eye. The types of glulam beams, as you may be aware, are numerous. There are four basic types of beams: simple span beams, tension beams, cantilevered beams, and compression beams

Both ends of the building are supported by simple span beams and tension beams are used to keep something from escaping. The wall is supported by cantilevered beams that are longer than ordinary beams. Finally, because they rise straight to the ceiling, compression beams are referred to as columns.

Make sure you have the necessary tools since a hammer and a nail aren’t going to cut it. Using power tools yields greater results.

Step #3. Replace rotten fragments

Suppose you have all the necessary supplies. Pull out your pry bar to expose the glulam beam’s inner workings.

It is common for the surface of the wood to be damaged by water damage. However, water may still get in.

The scrapes can be sanded off so that you can place another piece of wood on top. That necessitates an additional step.

Notice how the furniture has white or black dots on it? Mildew is the scientific name for these organisms.

Moisture can penetrate into an object and cause mildew to grow. Because you won’t have to run to the store to get rid of those bothersome fungi, you won’t have to worry about it. Bleach, baking soda, water, and dish soap should all work together to solve this problem.

Step #4. Do some epoxy work

When epoxy comes into contact with the skin, it can be extremely harmful. Typical epoxy resin allergic reactions may occur, according to experts at DermNet NZ. Be on the lookout for any signs of redness or swelling, and be prepared with some personal protective apparel.

Epoxies are a type of thermoset glue commonly found in industrial and household applications. Polyurethane is used to hold the laminated timbers together while they dry. Afterward, the glue acts as a natural hardener and drier, resulting in stronger sheets.

Step #5. Reinforce the new beam

It is best to wait for the beams to dry out before reworking them. Take advantage of the support of a friend in this step. Once all of the timbers have been put together, begin refinishing the surface.

The glulam members look fantastic with a lot of varnish on them. Make sure the nails are not dangling by placing them on different sides. Reapply a fresh coat of adhesive chemicals to the beam ends before reattachment.

Should You Call a Civil Engineer For This?

Call a civil engineer if the water damage is too far-fetched to repair on your own. Civil engineers are highly educated professionals with extensive training in the construction business.

If you need help renovating your home, though, you should contact your local house repair business. They should also be aware of the APA wood manufacturing standard, which will result in high-quality beams.

How Much Does It Cost to Replace a Rotted Support Beam by Square Foot?

The horizontal rafters that connect to the vertical joists and columns are known as support beams. This includes the garage, as well as the exterior of your home’s roof and ceiling. For example, the cost to diagnose, remove, and replace a rotting beam depends on a variety of factors. Consider the price of the beam’s raw materials as a starting point.

Natural wood, manufactured wood, or even steel beams may be recommended by your contractor to replace the rotten culprit, depending on your home’s construction, age, and specific demands.

The width and diversity of the material are taken into account in the ranges below:

  • $3–$12 per square foot for LVL (laminated veneer lumber).
  • Glulam: from $6 to $40 per square foot
  • Cost per square foot of natural wood: $5 to $90
  • 6–80 cents per square foot for steel I or H beams

Remember to add an average of $1,000 to $5,000 in labor costs to the cost of the beams.

How Much Does It Cost to Replace a Rotted Support Beam Yourself?

Structural elements like support beams should not be replaced until absolutely necessary. Obtaining a building permit and managing the project will almost always necessitate hiring a qualified and certified contractor in most regions, especially in apartment buildings or housing projects.

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If you see evidence of termites, dry rot, or a need for foundation repair, call in a professional as soon as possible to help remedy these concerns before they have a chance to harm your home’s structural integrity or raise project expenses.

The cost of installing steel beams can range from $1,260 to $9,000, whereas most steel beam installations cost between $3,000 and $5,000.

Support Beam Replacement Cost Breakdown

Before attempting to repair or replace a support beam, it is necessary to determine the degree of the damage. When you see drooping floors, big fractures in your walls or ceiling, or decay on an exposed beam, contact your local foundation repair professionals.

The following items should be on your to-do list during your initial visit through the end:

  • Inspections and permits
  • A report by a structural engineer
  • Temporary pillars of support
  • removing drywall to gain access to a beam
  • In the case of beam replacement,
  • The cost of replacing a beam
  • Changing the drywall, paint, or other dcor in a room

Depending on the cause of the rot, you may have to pay for additional repairs like termite control, dry rot from fungus, or water damage. More on this topic to follow.

How Much Does It Cost to Replace a Beam by Type of Damage?

It is possible that the rot is limited to a single beam in the best case situation. A structural engineer will be able to tell you what caused the decay and how much further work you’ll need to do.

Dry Rot

However, dry rot is an organism that thrives in moist and humid environments, despite its name. Fungus breaks down the cellulose in the wood, making it appear dry on the outside.

Expect to pay between $1,000 and $3,500 in additional costs for significant fungus removal in the surrounding region on top of the $1,500 to $5,000 it would cost to replace the damaged beam.


A homeowner’s fear of termites can keep them up at night. To protect your property from the threat posed by wood-eating insects, you should inspect the outside and inside of your home for signs of infestation. Pest control might cost anything from $1,300 to 1,780 on average.

Water Damage

Natural wood, especially load-bearing beams, can be severely damaged by flooding and storms, as well as a ruptured water main line. It can cost anything from $1,200 to $4,600 to fix water damage.

Structural beams can also be affected by shifting, moving, and cracking foundations, especially if they are already rotten.

You may overload the beam if your foundation undergoes dramatic modifications, or if the beams were put wrongly in the first place. The integrity of the beam may be compromised if too much weight is placed on one or more parts of it.

The foundation beam itself can cost up to $4,530 to replace, depending on the severity of the problem.

The price of installing steel I-beams ranges from $1,290 to $5,000, with the average being $3,065 but the price can vary widely.

What Factors Influence the Cost to Replace a Rotted Support Beam?

The cost of replacing a support beam is heavily influenced by these specific features. They’ll be looking at these elements when they give you an estimate from your local carpenter or structural engineer.

Access to the Beam

It’s considerably easier to repair an exposed beam in the middle of your living room than one in a crawl space. Adding temporary posts and removing the existing beam is all that is needed in this scenario. Beams that are hidden in walls or under flooring and subflooring necessitate more time and effort to repair, while crawl space and basement supports are the most difficult to access.

Your contractor may also send in an electrician or plumber if they need to work around items like electrical wires or plumbing before shutting up the space.

Weight-Bearing Load

Walls that carry the weight of a building’s occupants are more expensive to repair than beams that do not. As a result, labor and material costs may rise as contractors spend more time stabilizing the building before starting work.

Material and Size of the Beam

For your new beam, your engineer may suggest a certain material and thickness. Termite- and weight-bearing-beams, for example, would be better served by being replaced with a manufactured wood or steel beam.

Regional Factors

Finally, the cost of replacing a rotten support beam might be affected by where you live.

You might expect to pay a variety of prices in your location based on factors such as:

  • Even if you live in a newer house, it doesn’t matter.
  • The price of obtaining necessary licenses and permits on a
  • The availability of information and resources
  • Forecasts for the area

Take These Steps to Minimize Seasoning Checks

As far as aesthetic concerns, checks can be filled with an elastomeric filler to make them look better. Building contractors do have several options for reducing the frequency of seasoning checks, though.

  • Glulam moisture content is likely to alter rapidly as the season passes, so don’t expose members to the environment by unwrapping them early in the summer.
  • Avoid exposing unwrapped members to the sun and wind in dry conditions.
  • When not in use, keep unwrapped components out of direct sunlight.
  • Don’t leave anything unprotected or unwrapped on the job site before installation.
  • Prior to enclosing the building, ensure that members are not exposed to adverse weather conditions.
  • After insertion, cover and protect the member.
  • When heating for the first time, avoid sudden temperature changes, which might influence the drying process.
  • Avoid placing glulam in direct contact with heating ducts.
  • Prepare the wrapping paper by cutting openings in the underside to prevent water from “ponding” inside the wrap while being stored on the jobsite.
  • Construction scheduling and control of the building’s interior environmental conditions can help prevent sudden variations in seasoning rate.
  • End seal the glulam beam after it has been cut to length in a distribution yard or on the jobsite. Remove the wrapping once the members have stabilized in an enclosed area where they are permitted to do so naturally.
  • Members should be wrapped in plastic and kept off the ground under a second cover.

There is no way for glulam producers to guarantee the absence of seasoning checks in individual glulam members as a result of handling and storage at distribution facilities, jobsite storage and installation, and regional climatic circumstances. As a precaution, deliveries should be coordinated to minimize the amount of time spent on the jobsite. Prevent glulam members from being exposed to hazardous weather conditions such as high temperatures, rain, wind, and other potentially destructive elements. Depending on how quickly the moisture level drops, both wet and dry regions can be dangerous. Take extra steps to protect the beams and columns if high-risk conditions cannot be avoided.

Masonry and timber structures restoration, protection and reinforcement


How do I replace a rotted support beam?

Securing the structural integrity of your home begins with having a qualified structural engineer examine the horizontal beams that run the length of your walls and floors, as well as your roof and ceilings.

If you see rot, water damage, or foundation difficulties in your house, contact these specialists immediately. Replacement of a beam may necessitate installing temporary support while a new wood or steel beam is being installed.

Why should I pick steel for my new support beam?

For a variety of reasons, contractors may advise you to replace an old, rotten wood beam with a steel one. Steel is a more expensive material, yet it has several advantages:

  • Fire-resistant
  • Irreproachable by vermin
  • Longer-lasting
  • Water damage is more resistant to this material (when galvanized against rust)

What other projects should I do at the same time?

When a weakened or rotting beam is discovered, it is an excellent opportunity to investigate the root cause. Experts should be called in to check for high moisture levels that might lead to dry rot, encapsulate your crawl space or basement, or inspect your home for wood-damaging pests.


The last thing you want is for your home to be swamped with water, especially now that storm season has arrived. It is important to keep an eye on the condition of your home on a regular basis. This advice on how to fix a water-damaged glulam beam is a must-read!