basement waterproofing

Here in Toronto, installing exterior and interior weeping tile systems is a very popular option as it can effectively divert water away from your foundation.  Also, improvements to the technology and installation methods have greatly increased their reliability as they traditionally had problems with getting clogged after a number of years.

So why use the term Weeping Tile?  I wish somebody would embargo the term ‘weeping tile’ because perimeter drains are neither tiles, nor do they weep (in fact they do the opposite). In times gone by, they were like that though, or we wouldn’t have the term.

French Drain-Weeping Tile System Image

In case you’re curious, I’ll mention that Romans used to cover their ditches with broken roof tiles. These stopped them blocking, while allowing the rain to filter through. If you looked underneath, I guess it looked as if the tiles were weeping.

A Weeping Tile system can be installed on the exterior of your foundation or in the interior of your foundation along the perimeter of your foundation walls.  Exterior Weeping Tiles will divert water away from your foundation so water never gets a chance to enter your foundation while an Interior Weeping Tile system will divert water away from after it has entered through your foundation, so this is more of a water management system rather than a true waterproofing solution.

Modern Weeping Tile Perimeter Drains

These days, perimeter drains lie at a point where underground water collects and makes a nuisance of itself. You’ll often find them at the bottom of outside basement walls, where they prevent water seeping through to the inside of your foundation. The weeping tiles are actually plastic pipes, with longitudinal slits on top designed to siphon the groundwater away.

Of course, if you just did that, then the earth would block the slits in no time at all. This is why builders wrap the pipes in ground-retaining cloth, and then cover them over with the same gravel chip you find in concrete. This belt-and-braces approach is necessary because digging up blocked perimeter drains is an expensive, time-consuming and messy business.

Weeping Tile System Diagram

How to Know You Need Them

Setting hindsight aside for a moment, you’ll know you need a weeping tile-type perimeter drain if you see water seeping in through the bottom of your basement. Typically, it will come through the crack where the walls rest on the floor. If the wall shows signs of damp higher up, then you have the makings of a dam outside.

Now that you know how these things work, you know that you should have a perimeter drain installed at the bottom of your exterior basement wall before the builder fills the space with rubble. The raw materials are not expensive and are quick and easy to lay down, so insist on it.

It is absolutely essential (the strongest words that I could find) to have a plan where the groundwater goes to after you collect it. If you are lucky, conditions will allow it to soak away naturally. If not, then you must leave a pit with a sump pump at the bottom.

A good long-term waterproofing solution is to properly waterproof the exterior walls of your foundation along with installing an exterior weeping tile system.

What to Do if the System Doesn’t Work

If you find water accumulating in your basement by seeping in from outside, then either you do not have a weeping tile system, or it’s blocked. You have three options, namely:

  1. Put up with the problem (bad idea, this can affect your property value)
  2. Did up the garden and install a new perimeter drainage system
  3. Chip out the floor against the walls, and install weeping tiles inside the room

There are pros and cons to both options 2 and 3. In theory, option 2 is the correct one, although there may be practical considerations that prevent it. If so, then 3 is really the only way to go. You’ll have to accept the fact that you will end up with less usable space, and will also likely end up hiding your interior perimeter drain behind some paneling.

Leaking Foundation?

These are several ways a basement can leak and if the problem isn’t solved it can lead to major long-term damage to your foundation. A proper water drainage system is needed to help fight off basement leaks and this is sometimes a simple solution and at other times it can be a big task. Nusite Waterproofing has been providing basement waterproofing and foundation repairs services in Toronto for over 30 years.  We offer a free in-home written estimate and inspection.  Contact us today to schedule your estimate.

Wet and damp basements are an ongoing issue in Toronto.  Between the weather and average age of the foundations of most homes in Toronto, a leaking basement usually happens to everyone at some point in time.  Add to the fact that Toronto sits on top of underground waterways, then you can understand why most homes have water issues in their basement.

Waterproofing a basement can be expensive if a full exterior waterproofing solution is needed.  So homeowners will obviously look at cheaper alternatives first and one of these alternatives is using waterproofing paint on their basement walls.

Does Waterproofing Paint Really Work?

When it comes to solving the problem of a leaky basement you’ll find there are numerous types of waterproof coatings and paints on the market today. But in reality, these products typically blister quite quickly and then flake off the walls of the basement. They can create quite a mess and once waterproof paint has been applied it’s not that easy to remove. If you have a persistent leak in the basement it should be properly fixed before applying any type of waterproof coating to it as it will not stop an active water leak from permeating your foundation.

If you’re not sure what waterproof paint is, it’s an inexpensive latex or oil-based product that can simply and easily be applied to the surface of a wall. It’s designed to create a barrier which is meant to fight off moisture and water. Most of the products come with a written warranty, but the fact is they’re not very dependable. Instead, you should be looking for a permanent solution to a damp basement instead of the minimal and temporary protection offered by a waterproofing paint.

When you suffer with a leaky basement you’ll often notice a flaky white substance on the walls and floor which is a mineral salt and is known as efflorescence. Moisture can seep through concrete since it is a porous, textured substance which actually contains numerous cracks and voids. Water can even leak through concrete walls which have been waterproofed on the outside with tar as the tar will break down eventually over time. Moisture can enter the home as water vapour and can result in musty odours, rot, mold, and humidity.

When the vapour penetrates the basement it contains minerals from the earth and when they crystallize it leaves a white substance on the floor and walls. Waterproof paints and coatings can’t prevent this though and you’ll likely still be faced with a mold and/or efflorescence problem. Some waterproof paints may be able to work their way into the concrete pores, they’re basically just a covering and can’t penetrate deep enough to keep moisture at bay. Basically, waterproof paint is just a temporary, band-aid solution which may last from just six months to a couple of years at most.

One of the most popular solutions for a wet basement these days is to mechanically attach wall panels with plastic pegs. This system can be used on a variety of surfaces including dirt and stone walls and can often be completed in a day or two. If you’re dealing with a leaky, humid basement in the Greater Toronto Area and would like some advice on how to fix it permanently please feel free to contact us at the Nusite Group for a free on-site inspection and estimate.

Nusite Group has been providing high-quality basement waterproofing solutions in Toronto for over 3o years.  We provide homeowners with free quotes and would be glad to pay you a visit. We’ll perform an on-site inspection of your basement and answer any questions you have concerning your problem. Once we’ve completed a thorough inspection of the basement we’ll be able to offer you our professional advice on the best solutions for your unique situation.

Unfortunately, there are several reasons you may find water leaking into your basement and you should treat them all seriously as the problem will need to be rectified sooner rather than later.  Here in Toronto, we have the perfect mix of older homes and extreme weather conditions, which can cause a foundation to leak over time.  Since real estate is at a premium in Toronto, many homeowners would love to finish their basement to increase their living space without expanding into their already cramped backyards or going through the red-tape of adding an addition to their home.

We’ll take a look at the most common causes of a leaky basement and what can be done about them.

Top of the foundation wall

Top foundation leak Toronto
Water can often find its way into the basement over the top of the basement/foundation wall if rainwater happens to drain towards the home instead of away from it. This is common in older homes with a poor drainage design. Be sure your gutter system works well and the downspouts are long enough to lead the water away from the house. In some instances, the soil will settle near a home and this results in low spots where water can seep through and into the basement.

Leaking window wells

Window Well repairs Toronto
Window wells are decorative as well as practical as they’re designed to keep water and soil away from your ground level and basement windows. They can drain rain and ground water away when needed, but can sometimes fail to do the job properly. Window wells can sometimes fill with rainwater if your gutters are obstructed as the water will overflow from the roof. Be sure the windows and window wells are properly installed and the gutters are clear. The window wells should have a drainage system of their own which works hand in hand with the foundation drain.

Cracks in the basement wall

Cracks in Foundation Walls
Basement wall cracks can be serious as you need to find out why the wall cracked in the first place. A band-aid solution isn’t recommended as further cracks may appear. Wall cracks are often caused by pressure which has built up at the bottom of the wall. Water can then be pushed through existing cracks and into the basement or it could create new cracks.

Tie rod leaks

Leaking Tie Rods Basement
Many older homes have steel rods placed in them during construction. When the walls have been built the rods are typically removed, but small holes are left behind.

Leaky sewer pipe

Leaking sewar lines Toornto
Some sewer pipe leaks can be very slow and may be hard to detect unless you see a stain on the wall or ceiling below the drain. In some cases, you may also see mold below the drain.

Leaking mortar joints

Mortor joint leaks foundations Toronto
Some basement walls are made of wood, brick, cinder block or stone instead of concrete. These walls use mortar to hold the blocks in place and the mortar may eventually deteriorate over the years. If this happens, water can slowly leak through it.

Cracks in the floor

leaking basement floor Toronto
The weight of ground water can cause hydrostatic pressure and this can lead to cracks in your basement floor as well as structural damage. The hydrostatic pressure is a result of poor drainage as well as soil, clay and the pressure can push against your foundation. The water needs somewhere to go and can lead to cracks in the floor. The pressure builds as more water collects and becomes heavier.

Sump pumps

Leaking broken sump pump Toronto
If you depend on a sump pump be aware that these devices may fail due to things such as power failures, bad switches, improper installation, lack of maintenance and clogged or even frozen lines. This can be a problem if you don’t have a backup pump.

Clogged floor drain

basement Floor drain leak Toronto
A floor drain can clog and water can back up through the homes’ drainage system. If your local municipal drain is clogged you don’t really have any control over it and that’s why a waterproofing system in recommended.

Obstructed drain tile

blocked weeping tile Toronto
Weeping drain tiles go around the perimeter of a basement in many newer homes. It’s generally constructed with plastic piping which is perforated and then wrapped in a sock-type of cloth. It’s surrounded by gravel and installed placed at the base of the home’s foundation walls. However, it can sometimes be obstructed by tree roots even though precautions are taking against it.

What’s causing your basement leak?

These are some ways a basement can leak and if the problem isn’t solved it can lead to major damage. A proper drainage system is needed to help fight off basement leaks and this is sometimes a simple solution and at other times it can be a big task. Nusite Waterproofing has been providing basement waterproofing and foundation repairs services in Toronto for over 30 years.  We offer a free in-home written estimate and inspection.  Contact us today to schedule you estimate.

Important Questions to Ask When Waterproofing Your Basement

When you’re about to have your basement waterproofed you should take the time to find a reliable, professional waterproofing company to handle the job and make sure they stand by their work.  Here in Toronto, basement waterproofing is a big business due to the age of the homes in Toronto, along with the weather extremes.  Since it is such a big business, there are many unqualified and inexperienced people selling waterproofing services.  Most lack the necessary insurance and equipment to do the job properly and sell extended warranties that they have no intention of honouring.

When getting estimates, there are also several important questions you should ask before deciding which company to go with. Below is a list of questions you may want to have answered before waterproofing your basement.

  1. Is the company licensed, insured, and bonded?

One of the first questions you should ask the waterproofing contractor is if they’re licensed, insured, and bonded. You want to be sure you’re dealing with a legitimate waterproofing company and find out if any permits are required by the city. Be sure the company’s employees have liability insurance and workers compensation protection.  If a waterproofing company and its employees working on your property are not properly insured, all of the responsibility and liability will rest on the homeowner and their insurance if there is damage or personal injuries during the project.  Also, many homeowner’s insurance plans will not pay damages if it is revealed that you hired an unlicensed, uninsured company to do work on your home.

  1. Do they waterproof homes from the outside?

The better waterproofing companies will offer both interior and exterior waterproofing systems depending on the home’s unique needs. It’s a good idea to ask the contractor which method they will use and why it’s the best for your situation. Even though an exterior waterproofing method is more expensive it’s generally regarded to be the best as it protects the home’s foundation. Remember, you’re looking for a long-term solution to your problem, not just a quick band-aid fix.  Many smaller companies do not have the equipment or experience to do exterior waterproofing so they will always sell you on a crack injection solution or interior waterproofing solution even if it is not the best solution for you.

  1. Can they provide references?

Don’t be too shy to ask the contractors if they can provide you with references to call regarding their workmanship. In addition, don’t be afraid to call the customers they refer you to.

  1. What type of warranty do they offer?

It’s important that you find out exactly how the contractor backs up their work. You need to know what’s under warranty and for how long, such as labour and materials. Be sure to go through any contracts with a fine-tooth comb and ask questions to have everything clarified. Don’t be afraid to back out of a contract if you’re not comfortable with any of the terms. A lifetime transferable warranty is the best since it stays with the house no matter who owns it. Also, ask if the sump pumps used are guaranteed for life.  When asking about warranty information, it’s important to find out how long the company has been in business as many new waterproofing companies have never had to honour a warranty before and have no idea the work and responsibility involved in offering one that you intend to stand behind.

  1. How long have they been in business?

If the company has been in business for quite some time then it must be doing something right. You’ll know they have experience in waterproofing and have enough clients to be successful in their profession.  Look for companies with a long track record, especially when it comes to honouring the warranty.

  1. What will my home look like after the waterproofing?

Some homes need extensive repairs with an exterior excavation or an interior drain system and you want to make sure everything will be done professionally and neatly. You don’t want your home looking like a disaster area after the work has been completed.  Let them explain to you what will happen after the project is finished and who is responsible for what.

  1. What else can I do to stop a leaky basement?

Good contractors will gladly assist you by sharing their knowledge about leaking basements. They’ll be able to give you several tips to keep your home as dry as possible. These tips will likely regard your eavestroughs, spouts, drainage system, and window sills etc.

  1. Can I have your office and/or website address?

A professional waterproofing contractor should have an office like any other type of business and may also have a website. You don’t really want to have your basement waterproofed by somebody who’s working out of their car or garage.  Good luck trying to find them if something goes wrong.

Most of the above questions regarding waterproofing are quite straightforward and a good contractor should have no problem answering them honestly.  Nusite Waterproofing has been providing basement waterproofing services in Toronto for over 30 years.  We offer free, in-home written estimates and pride ourselves on our customer service and commitment to quality.  Contact us today to schedule your free estimate.

 

A basement needs a proper drainage system to make sure it is kept dry throughout the year. There’s more than one way to install a drainage system and there are also some helpful tasks which can be performed to keep water out of your home. A basement can be sealed on the outside as well as the inside via an exterior weeping tile/French drain system or an interior weeping tile system and a sump pump. In addition, the building should have the proper type of window well drainage and your gutter downspouts should direct the water away from your home’s foundation.

We have been repairing leaky basements here in Toronto for over 30 years and have seen how poor drainage can cause havoc on a home’s foundation.  Toronto in built on a series of underground waterways, couple that with the age of the homes and weather, and you have a perfect scenario for basement leaks.

 

Interior Weeping Tile System

The interior weeping tile system to is designed to stop water from seeping into the basement via cracks in the floor and cove joint, which is the joint between the floor and wall. This system is also effective for water that seeps in through porous concrete walls as well as a masonry wall which has deteriorated or cracked mortar joints. The cracks can be repaired permanently from inside the home by injecting them with an expanding polyurethane substance which seals them. This means no exterior excavating is needed.

Interior Weeping Tile System Toronto

In reality, an interior weeping system can’t waterproof a basement, but it will channel the water away so you never see it. The system is installed along the perimeter of the basement walls and it utilizes a plastic pipe with holes punched in it. The pipe is wrapped in a sheet to help keep the dirt out and is installed at a sloping angle. The weeping tile is covered with gravel and the floor is re-poured. A sump pump is installed at the end of the tile to carry water away before it can rises above the footings. If your basement is finished, the interior walls will need to be removed during installation.

 

Exterior Waterproofing and Weeping Tile Systems

Since the water is on the outside of the home, you can also waterproof a basement from the outside using an exterior weeping tile system along with applying a waterproofing membrane to the outside of your foundation walls.

Water often comes from the soil surrounding the home and enters the basement below the foundation or around it. The soil expands when it absorbs water and some types allow little drainage. The swelling and expansion of the soil can create pressure around the home’s foundation and this can basically push the water through small openings and cracks etc. This type of water seepage needs an exterior waterproofing system to remedy it. Poured concrete foundation walls can sometimes contain porous spots and over time, water can seep through them through these pores and cracks that develop over time.

 

 

When it comes to masonry walls, water can seep through weakened or badly-installed mortar joints. Concrete block and bricks can also allow seepage over time and any type of foundation wall can allow water to enter over its top edge. This is especially true if the grade of your lawn slopes toward your home. The solution to all these problems is an exterior waterproofing membrane which acts as a barrier against the water. This means the foundation will need to be excavated to the footings at the faulty wall or for the perimeter of the building. Loose mortar and soil are then cleaned from the wall and it’s prepared for the next step, which is an asphalt-modified polyurethane coating.

xterior Waterproofing job in Toronto

Once the coating has cured it will form a seamless barrier around the home’s foundation. This is designed to aid the wall’s structural integrity and keep the water at bay. In some cases, an insulating material and plastic drainage board can be installed over the membrane. The drainage board is designed to add protection to the membrane as well as channeling the water downward. The excavation is backfilled after this and the foundation will be protected against water seepage. If the ground water around the foundation is quite high then an exterior drain tile can be installed with the membrane. This will help take pressure off the walls and drain the water.

Nusite Exterior Waterproofing

The exterior drain tile is installed after  the membrane by laying washed gravel at the foot of the excavation. Perforated PVC pipe is then installed along the length of the excavation and drains water or it can be connected to a sump pump. This PVS pipe is typically enclosed in a fabric to keep any dirt out of it. The pipe is covered with more gravel and the area is then backfilled.

In essence, a French drain or curtain drain is a slightly-sloped trench which is filled with gravel as well as a pipe which diverts water away from a home. The drainage system gives water an easy channel to flow through and it drains out at a safe distance from the structure. The drain is typically about two feet deep and about 1.5 feet across.

 

Window Wells and Downspouts

Since the windows in the basement of your home are typically below ground surface, you should inspect them on a regular basis to make sure they’re not leaking any water. The windows themselves and the window wells should be checked for rotting, cracked or broken frames. In addition, you should look for clogged window well drains and cracked caulking. It’s important that the window wells drain properly so you need to keep all debris out of them whenever possible.

In addition, the downspouts of the home should be properly positioned so they can drain the water a minimum of six feet from the structure’s foundation. If the downspouts are presently draining into the sewer system they can be disconnected and aimed away from your home. You should also try to keep an eight-inch distance between the bottom of your downspout and ground level think about installing window wells. It’s important to check the downspouts for leaks and repair them as needed.

If you’re facing a leaking basement there will be a solution available which can be recommended and installed by an experienced waterproofing contractor.  Nusite has been providing residential waterproofing services for over 30 years.  We have an A+ BBB rating and are one fo the highest rated contracting companies on Homestars.  We offer a free on-site inspection and estimate in Toronto and the surrounding GTA.  Contact us today to learn more.