Posted by & filed under Foundation Repair, Waterproofing.

This project was highlighted by the Home Builder’s Remodelers Council of Greater Southwest Illinois as we received the Director’s Choice for the 2016 Remodelers of Distinction Award for Structural Renovation. Read about our limited access wall repair below!

 

Limited Access Wall Repair

Category Entry: Structural Renovation

 

Description of the scope of the project:

This property had both structural issues with the foundation and water intrusion through cracks and basement floor.  The cracks were a result of lateral movement (bowing) in three of the four foundation walls, with the front and rear walls being significant. The front wall had leaned in over three and a half inches, which was damaging the duct work in the basement. The rear wall had not only significant cracking but also was bowing in the middle, while the left side wall was leaning in two and a half inches.

 

Subcontractors/designers used on the project:

A civil construction company was used as a consultant during the shotcrete process.

 

Project description of the steps you took to accomplish the end result:

  1. Excavation: The front and left side walls were excavated in order to allow room for the helical tiebacks to be installed. Due to limited access, soil had to be hauled off-site. To allow walls to be straightened, the main level floor joists were additionally supported along the foundation.
  2. Coring Holes: Holes were cored every five to six feet (three feet from the corners) for the helical anchor lead shafts to be inserted and the helical anchor helix to be connected on the outside of the wall.
  3. Anchor Installation: Anchors were run at a 15-20 degree angle down into the soil to pressures of nearly 2,000 psi. The lengths of the anchors extended to approximately 15 feet to ensure the anchors were properly seated into the inactive soil.
  4. Anchor Securing: C-Channel beams were installed at the end anchor locations where cracking was severe, and wall plates were installed at the remaining seven anchor locations. The anchors were loaded and the wall pull commenced.
  5. Wall Pulling: By the time the wall straightening was completed, the walls were pulled out nearly four full inches to their original position.
  6. Sprayed Membrane: Once the walls were straightened, the foundation was sprayed with a polymer enhanced membrane to help prevent moisture absorbing into walls.
  7. Backfill: The excavated soil was replaced and backfilled with clean rock and soil.
  8. Crack Repair: Once all of the walls were structurally repaired, cracks were injected with a polyurethane injection. Additionally, Carbonbond (a carbon fiber fabric) was installed on the cracks to help provide structural reinforcement between anchor locations.
  9. Shotcrete Wall: The rear foundation wall could not be dug out to be straightened as there was a slab on grade addition on the back. In addition, only stabilizing the wall with tiebacks was not the best option due to amount of cracks that were in the wall. Therefore, a rebar cage and shotcrete wall was installed to encapsulate the existing wall. A new sill plate was installed to help transfer loads from upstairs to the new shotcrete wall.
  10. Waterproofing: An interior drainage system (Hydraway 2000) with interior sump pump was installed to prevent hydrostatic pressure from building up and also to keep the basement floor dry.

 

Obstacles faced such as Homeowner requirements, unusual site, unexpected situations (what was behind that wall), mold, lead, design restrictions, etc.

What made this project so challenging was the small lot size. In order to excavate soil on the outside of walls, large equipment is typically needed; whereas with this project, space was limited.

Along the rear foundation wall was a slab on grade addition that was put on the original structure. We were not able to excavate along here and reach the original foundation to install tiebacks, therefore constructing a shotcrete wall the next option.

 

Unique Products

Chance Helical Tiebacks were utilized to anchor the existing walls into the soil and to prevent lateral movement. A polymer enhanced membrane was sprayed on the outside of the foundation walls to help prevent moisture absorption.

Polyurethane was injected to seal the existing cracks in wall. The injected cracks were then covered with a carbon fiber material, Carbonbond, to prevent any further separation.

The Hydraway Drainage System was installed as a waterproofing system, in addition to the completed structural repair.

As previously mentioned, shotcrete was used. This particular application enforces wall spaces, particularly in earth that might be prone to soft soils.

 

Posted by & filed under Waterproofing.

Helitech received the 2016 Remodelers of Distinction Award for Waterproofing Renovation as given by the Home Builder’s Remodelers Council of Greater Southwest Illinois. Read about our Leaky Basement Repair project below!

 

Leaky Basement Repair

Category Entry: Waterproofing

 

Description of the scope of the project:

A flooring company was working in the home when they discovered severe water issues and decided a waterproofing company was needed for repair work. The basement was finished, which blocked access to fully investigate the issue, it was determined there were serious water problems as well as potential structural issues.

In order to fully diagnose the problem, the homeowner needed to remove the basement framing and drywall to expose the foundation. Once the foundation was exposed, there were severe structural cracks throughout the whole foundation from hydrostatic pressure build-up.

The solution was to install a full waterproofing system, alongside crack injections and structural repair.

 

Project description of the steps you took to accomplish the end result:

A plan of repair was put together to solve the water issues, alongside repairing the structural damage to the foundation.

 

1. Waterproofing System: The Hydraway System uses a four-step process, consisting of Hydraway 2000 and Hydraway 300 products.

  1. The first step was to roll out a double layer of Hydraway 2000 and insert it vertically, next to the foundation’s footing. The Hydraway 2000 is placed in this position as it is the lowest part in the house where water drains to. The Hydraway 2000 acts as a channel for the water to be drained out of the interior of the home.
  2. Next, Hydraway 300 was placed on top of the footing and against the foundation wall in an L-shape. The Hydraway 300 is used to catch any water that may drain from the foundation wall and direct it to the Hydraway 2000 below. Hydraway 300 was also used to relieve any hydrostatic pressure against the new foundation walls.
  3. A hole was dug out in the corner of the basement and placed inside was a sump pit container. The Hydraway 2000 connects to the sump pit and inside, the Hydrapump (sump pump) was installed.
  4. The final step of the waterproofing portion of the project was to pour the entire concrete floor, on top of the drainage system.

 

2. Hydrashield Paneling System: Rigid panels were secured directly to the basement walls. This not only enhanced the look of the basement, but also protects the basement from any further moisture that may enter.

 

3. Crack Repair: The foundation was also structurally repaired by injecting epoxy into the cracks in the walls, with the additional utilization of Carbonbond for structural support.

  1. The first step was to inject epoxy into the crack to stop water leakage.
  2. The walls were prepared for installation by sanding the area clean of debris.
  3. Injections ports were installed and sealed off.
  4. Specially formulated epoxy was injected into the crack through the ports.
  5. The surface was then prepared for the Carbonbond installation and primer was applied.
  6. The carbon fiber material (Carbonbond) was applied to the surface of the wall to cover the crack.
  7. A final layer of epoxy was applied over the Carbonbond for protection and to secure the material.

 

The homeowner was ecstatic with the results and solution of their water issue. They now have peace of mind that their home is in sound shape again.

 

Obstacles faced such as Homeowner requirements, unusual site, unexpected situations (what was behind that wall), mold, lead, design restrictions, etc.

Access was limited as the basement was finished. In order to fully diagnose the problem, the homeowner needed remove the basement framing and drywall to expose the foundation. Once the foundation was exposed, there were severe structural cracks throughout the entire foundation as a result of hydrostatic pressure build-up.

This project was done during a time when there was heavy rain in the area, which was difficult to work in from not only a standpoint of continual leaking, but also from tracking mud and other debris into the home. The installation crew worked diligently to ensure any mess that occurred from the rains was cleaned up before the job was completed.

 

Unique Products

Hydraway 2000 has a specially engineered design that permits high in-flow rates for rapid dewatering of soil, while effectively preventing passage of soil particles. It is made of a heavy-duty, clog resistant geotextile fabric, permanently bonded to lattice core of 75% available open space for water. The design of Hydraway allows it to relieve hydrostatic pressure by acting as a shallow underdrain. The Hydraway 2000 is a cost effective and superior performing replacement for the “French” drain, or other conventional “drain-tile” systems.

Hydraway 300 is a drain board system used to relieve hydrostatic pressure and capture any flowing water along subsurface structures, such as basement or crawlspace foundations, retaining walls, or civil applications.

Hydrashield Paneling System consists of rigid panels that are directly secured to basement walls, as each panel is custom fit with matching connectors. This not only enhances the look of the basement, but also protects the basement from any moisture that may enter.

Epoxy was injected to seal the existing cracks in wall from further leakage. The injected cracks were then covered with a carbon fiber material, Carbonbond, to prevent any further separation

 

 

Posted by & filed under Uncategorized.

The Home Builders Association of Greater Southwest Illinois Remodelers Council recently named Helitech Waterproofing & Foundation Repair of Belleville, Illinois, a 2015 Remodeler of Distinction in both the Foundation Renovation and Waterproofing Renovation categories, in recognition of their professional remodeling expertise. The award was given at the Home Builders Association Installation Banquet held recently in Fairview Heights, IL.

Read more »

Posted by & filed under Uncategorized.

The Home Builders Association of Greater Southwest Illinois Remodelers Council recently named Helitech Waterproofing & Foundation Repair of Belleville, Illinois, a 2015 Remodeler of Distinction in both the Foundation Renovation and Waterproofing Renovation categories, in recognition of their professional remodeling expertise. The award was given at the Home Builders Association Installation Banquet held recently in Fairview Heights, IL.

Read more »

Posted by & filed under Waterproofing.

April showers bring May flowers, but they can also bring flooded basements if not properly addressed before the heavy rains fall.

While many homeowners have a subsurface drainage system installed, what they often forget to address is “What if the power goes out? How does my sump pump kick on then?”. After all, how many times has your power gone out in the event of a storm? And how many times does it turn immediately back on? Not as often as we would like. Read more »

Posted by & filed under Foundation Repair, Office Happenings, Waterproofing.

The Home Builders Association of Greater Southwest Illinois Remodelers Council recently named Helitech Waterproofing & Foundation Repair of Belleville, Illinois, a 2014 Remodeler of Distinction in both the Foundation Renovation and Waterproofing Renovation categories, in recognition of their professional remodeling expertise. The award was given at the Home Builders Association Installation Banquet held recently in Fairview Heights, IL.

Read more »

Posted by & filed under Foundation Repair, Helpful Tips.

Correct lawn and garden maintenance is a major factor in protecting your foundation from potential harm. Expanding and contracting soil, excessive moisture, and inadequate drainage are the most common threats to your home’s foundation. Living in the Midwest, some of those threats are inevitable, but many can be prevented by preventative lawn care.

Preventative Foundation Maintenance

Helitech recommends to always keep a positive grade away from your home’s structure to allow for sufficient water run-off. One of the most harmful things you can do to your home’s foundation is to allow for surrounding pooling water.

Read more »

Posted by & filed under Office Happenings.

The Helitech Office Staff joined in on the #IceBucketChallenge and challenged the Residential Estimator team! Helitech will be donating to the ALS Association to raise awareness and help fund further research.

A few facts about ALS:

  • ALS is a progressive neurodegenerative disease that affects nerve cells in the brain and the spinal cord.
  • Read more »

Posted by & filed under Fall, Helpful Tips.

A home is the most expensive purchase most people will ever make. In order to prevent major and often expensive repair projects, routine maintenance is essential for every homeowner. Protect your investment by performing routine maintenance to keep your home in tip-top shape. Scheduling these tasks can help eliminate problems before they start.

Use this checklist to prepare your home and yard for the cooler temperatures of fall, falling leaves, and more hours spent indoors. If any of the jobs go beyond your skill level or lead to more involved repairs, hire a professional handyman or contractor to help.

Outdoor Fall Home Maintenance Tasks:

  • Remove debris from gutters, window wells, and downspouts as this can lead to foundation issues if moisture sits around your home’s base for too long
  • Inspect roof, chimney, and foundation for cracks and damage which can often be signs of foundation problems. Call an expert for a free consultation if more than hairline cracks are found.
  • Read more »