Sector Housing, private
Project type New build
Services provided Site survey
Planning advice
Design
Project management
Product / system manufacture
Product / system supply
Installation
Year completed 2013
Project location North West England
Consultant Newton Waterproofing Systems
Contractor Trace Basements
 
 

Challenge

This complex remedial structural waterproofing project in Carnforth, Lancashire consisted of six side-by-side garages set into a hillside, three with first floor store rooms over them, and a parking deck above. The other three garages are single-storey and have a deck above set at a lower level than the adjacent parking area.

The lower level is a paved garden area with planters, with a wall to one side retaining the road above at a higher level. The original contractor had included little in the way of waterproofing to the decks and water penetrated from above.

Additionally the reinforced concrete retaining wall was treated with unsupported asphalt, and penetration also occurred through that. Typically, tanking had been applied here and there but with little success.

Solution

Newton Specialist Basement Contractors Trace Basements produced a bespoke design including internal Type C Newton System 500 Cavity Drain, external Type A waterproofing including Newton 101F flexible cementitious slurry and the award winning Newton 106 FlexProof to compile a robust waterproofing design encompassing the retaining basements, flat podium decks and a green roof.

This project had an added complexity in that there was no possibility to obtain continuity between the internal and external systems because of the hillside and roadway at a higher level and so the internal and external systems had to be overlapped, as far as was viable.

Following consultation with Newton’s technical dept, Trace’s technical detail was able to solve the problem.

Section L/L Drawing

Where precast concrete planks with joints in between them span into the retaining wall, being supported on steel beams beneath, also bearing into the retaining wall.

  • 106 FlexProof / Newton 101F / Newton 407 DeckDrain etc protecting above
  • 104 applied above and below the planks, protecting movement through
  • The joints between planks were a difficult detail because joints were located directly above the steels and could not therefore be accessed from below to any great degree. Water was accessing this joint and then running along the top of the steel. The solution was to drill vertically down through the concrete plank either side of the joint and then injected 306 Swell Mastic (pre-warmed in water to reduce viscosity) until it oozed out of the joint either side, ensuring continuity at that point. The actual joint had already been raked out and was then filled with 306.

Outcome

The design produced by Trace Basements meant that the project was waterproofed successfully whereas in the past the previous waterproofing had failed. In addition, Trace Basements was able to offer the client full PI on the design and installation and a company and insured backed warranty.


Challenge

This complex remedial structural waterproofing project in Carnforth, Lancashire consisted of six side-by-side garages set into a hillside, three with first floor store rooms over them, and a parking deck above. The other three garages are single-storey and have a deck above set at a lower level than the adjacent parking area.

The lower level is a paved garden area with planters, with a wall to one side retaining the road above at a higher level. The original contractor had included little in the way of waterproofing to the decks and water penetrated from above.

Additionally the reinforced concrete retaining wall was treated with unsupported asphalt, and penetration also occurred through that. Typically, tanking had been applied here and there but with little success.

Solution

Newton Specialist Basement Contractors Trace Basements produced a bespoke design including internal Type C Newton System 500 Cavity Drain, external Type A waterproofing including Newton 101F flexible cementitious slurry and the award winning Newton 106 FlexProof to compile a robust waterproofing design encompassing the retaining basements, flat podium decks and a green roof.

This project had an added complexity in that there was no possibility to obtain continuity between the internal and external systems because of the hillside and roadway at a higher level and so the internal and external systems had to be overlapped, as far as was viable.

Following consultation with Newton’s technical dept, Trace’s technical detail was able to solve the problem.

Section L/L Drawing

Where precast concrete planks with joints in between them span into the retaining wall, being supported on steel beams beneath, also bearing into the retaining wall.

  • 106 FlexProof / Newton 101F / Newton 407 DeckDrain etc protecting above
  • 104 applied above and below the planks, protecting movement through
  • The joints between planks were a difficult detail because joints were located directly above the steels and could not therefore be accessed from below to any great degree. Water was accessing this joint and then running along the top of the steel. The solution was to drill vertically down through the concrete plank either side of the joint and then injected 306 Swell Mastic (pre-warmed in water to reduce viscosity) until it oozed out of the joint either side, ensuring continuity at that point. The actual joint had already been raked out and was then filled with 306.

Outcome

The design produced by Trace Basements meant that the project was waterproofed successfully whereas in the past the previous waterproofing had failed. In addition, Trace Basements was able to offer the client full PI on the design and installation and a company and insured backed warranty.


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Downloads
  • Newton 106 FlexProof FP1 Technical Data Sheet
    Newton 106 FlexProof FP1 Technical Data Sheet
    2.6MB
    Download
  • Newton 503 Data Sheet
    Newton 503 Data Sheet
    903.45KB
    Download
  • Newton System 300 - waterproofing of concrete structures
    Newton System 300 - waterproofing of concrete structures
    7pp 2.33MB
    Download
 
 
 
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