News / Events

Thursday 27 February 2020

Event Announcement - Rules For Masonry Reinforcement (CPD Presentation) & Networking

Location: Bath      Date: 19 May 2020




You are invited to attend our brand new CPD seminar on Rules for Masonry Reinforcement that we are hosting at The Kingswood School on Tuesday, 19 May 2020. You can have a bite to eat, network with fellow like-minded professionals and be given an introduction to our products and systems.


Topic Overview


Target has been working with structural engineers, building surveyors, architects, arboriculturists and many more professionals to provide unique structural solutions since 1997.


Historic Buildings & Conservation
Target has carried out repairs and restorations on many historic buildings - from castles to farmhouses - each with its own unique defects and requirements. This has led to the development of numerous creative repair techniques to enhance the structure with little aesthetic effect. This increases the building's longevity and safety, whilst maintaining the rustic charm.

Interpreting Cracks
Cracks can manifest themselves in many different directions, shapes and sizes as a result of the properties of masonry and the forces imposed upon it.

Causes of Cracking
Cracks are often the result of material defects, design flaws and external influences. The repair solution will vary depending on the cause of the cracking.

The Design Philosophy
Whilst standard "off the shelf" guidance is readily available, causes - and subsequently repairs - are often more complex than guidance can cover. By considering the lowest possible level of complexity at each stage, a complex design can be systematically compiled.


Practical Application

Many theoretical propositions work perfectly on paper. Buildings aren't founded on paper, and the theory needs to be applicable on-site - even in the rain.

Construction Solutions
Target has been manufacturing materials for structural repair solutions for over 20 years. We have amassed a wealth of knowledge spanning many domains within our narrow field. We take pride in offering a complete solution, from advice and guidance to surveying, design work and installation. Combining these elements ensures unity across the board.





Agenda

08:20 - Registration
08:30 - Seminar - Rules For Reinforcing Masonry (Part 1)
09:15 - Breakfast
09:30 - Seminar - Rules For Reinforcing Masonry (Part 2)

Venue

Kingswood School,
Landsdown Road,
Bath,
BA1 5RG
Map

Friday 21 February 2020

A Brief History of Wall Ties

Cavity wall construction, where two "leafs" are built with a small gap between them for insulation, was introduced to northern Europe in the late 19th Century and began to become more widespread in the 1920s.


Generally, the inner leaf was a structural wall, and the outside leaf is either a weather barrier or vanity leaf. As the outer leaf is not connected to the structure (except, perhaps, at the top and bottom), the slender wall would be subjected to wind suction, so it was important to "tie" it to the inner leaf in order to create a more stable structure.

The force of wind suction can typically be as high as 2.5kN per square metre - this is over 245kg of force acting on every square metre of wall. In cavity walls where the leafs are not properly connected, high winds can suddenly cause the collapse of outer leaf masonry.

In early examples of wall tie, the two leafs were joined together using pieces of timber laid into the mortar joints, a brick laid perpendicular to bridge the cavity or steel "fish-tail" ties.

Brick and steel ties were later found to be too rigid, preventing differential movement between the two leafs. Where concrete inner leaf shrinks and a brick outer leaf expands, for example, a rigid tie would lever apart the masonry, creating horizontal cracks in the leafs.

In addition, both steel and timber ties can lose their strength over time as water penetrates the outer leaf and runs over the face of the tie. Steel ties can have their lifetime extended by giving it protective zinc or galvanised coating.

Research conducted in the 1970s found that fish-tail ties had a life expectancy of just 30 years - half of that originally intended. Stainless steel wall ties started to be introduced in the mid-1980s, but before this time the corrosion on ties was particularly damaging to masonry as mild steel can expand up to 7x its original size as it corrodes. This corrosion is often evidenced by evenly spaced horizontal cracks appearing in the outer leaf. These cracks first appear - and appear widest - at the top of masonry walls, particularly where there is little weight-bearing onto the ties; like on a gable end. The horizontal cracks are a result of the wall ties’ expansion lifting the overlying masonry.

To treat corroding wall ties, the best solution is to install new stainless steel wall ties such as Dri Flex or Retro Flex to tie the leafs together, and to isolate the existing wall ties to prevent any further damage to the outer leaf masonry.

Friday 14 February 2020

Event Announcement - Rules For Masonry Reinforcement (CPD Presentation) & Networking

Location: Norwich      Date: 05 May 2020




You are invited to attend our brand new CPD seminar on Rules for Masonry Reinforcement that we are hosting at The Caistor Hall Hotel on Tuesday, 5 May 2020. You can have a bite to eat, network with fellow like-minded professionals and be given an introduction to our products and systems.


Topic Overview


Target has been working with structural engineers, building surveyors, architects, arboriculturists and many more professionals to provide unique structural solutions since 1997.


Historic Buildings & Conservation
Target has carried out repairs and restorations on many historic buildings - from castles to farmhouses - each with its own unique defects and requirements. This has led to the development of numerous creative repair techniques to enhance the structure with little aesthetic effect. This increases the building's longevity and safety, whilst maintaining the rustic charm.

Interpreting Cracks
Cracks can manifest themselves in many different directions, shapes and sizes as a result of the properties of masonry and the forces imposed upon it.

Causes of Cracking
Cracks are often the result of material defects, design flaws and external influences. The repair solution will vary depending on the cause of the cracking.

The Design Philosophy
Whilst standard "off the shelf" guidance is readily available, causes - and subsequently repairs - are often more complex than guidance can cover. By considering the lowest possible level of complexity at each stage, a complex design can be systematically compiled.


Practical Application

Many theoretical propositions work perfectly on paper. Buildings aren't founded on paper, and the theory needs to be applicable on-site - even in the rain.

Construction Solutions
Target has been manufacturing materials for structural repair solutions for over 20 years. We have amassed a wealth of knowledge spanning many domains within our narrow field. We take pride in offering a complete solution, from advice and guidance to surveying, design work and installation. Combining these elements ensures unity across the board.





Agenda

08:20 - Registration
08:30 - Seminar - Rules For Reinforcing Masonry (Part 1)
09:15 - Breakfast
09:30 - Seminar - Rules For Reinforcing Masonry (Part 2)

Venue

The Caistor Hall Hotel,
Caistor St.Edmunds,
Norwich,
NR14 8QN
Map

Event Announcement - Rules For Masonry Reinforcement (CPD Presentation) & Networking

Location: Colchester      Date: 06 May 2020




You are invited to attend our brand new CPD seminar on Rules for Masonry Reinforcement that we are hosting at The Milsoms Hotel Colchester on Wednesday, 6 May 2020. You can have a bite to eat, network with fellow like-minded professionals and be given an introduction to our products and systems.


Topic Overview


Target has been working with structural engineers, building surveyors, architects, arboriculturists and many more professionals to provide unique structural solutions since 1997.


Historic Buildings & Conservation
Target has carried out repairs and restorations on many historic buildings - from castles to farmhouses - each with its own unique defects and requirements. This has led to the development of numerous creative repair techniques to enhance the structure with little aesthetic effect. This increases the building's longevity and safety, whilst maintaining the rustic charm.

Interpreting Cracks
Cracks can manifest themselves in many different directions, shapes and sizes as a result of the properties of masonry and the forces imposed upon it.

Causes of Cracking
Cracks are often the result of material defects, design flaws and external influences. The repair solution will vary depending on the cause of the cracking.

The Design Philosophy
Whilst standard "off the shelf" guidance is readily available, causes - and subsequently repairs - are often more complex than guidance can cover. By considering the lowest possible level of complexity at each stage, a complex design can be systematically compiled.


Practical Application

Many theoretical propositions work perfectly on paper. Buildings aren't founded on paper, and the theory needs to be applicable on-site - even in the rain.

Construction Solutions
Target has been manufacturing materials for structural repair solutions for over 20 years. We have amassed a wealth of knowledge spanning many domains within our narrow field. We take pride in offering a complete solution, from advice and guidance to surveying, design work and installation. Combining these elements ensures unity across the board.





Agenda

08:20 - Registration
08:30 - Seminar - Rules For Reinforcing Masonry (Part 1)
09:15 - Breakfast
09:30 - Seminar - Rules For Reinforcing Masonry (Part 2)

Venue

The Milsoms Hotel,
Stratford Road Dedham,
Colchester,
CO7 6HW
Map

Event Announcement - Rules For Masonry Reinforcement (CPD Presentation) & Networking

Location: Oxford     Date: 08 April 2020




You are invited to attend our brand new CPD seminar on Rules for Masonry Reinforcement that we are hosting at The Oxfordshire Golf Hotel and Spa on Tuesday, 8 April 2020. You can have a bite to eat, network with fellow like-minded professionals and be given an introduction to our products and systems.


Topic Overview


Target has been working with structural engineers, building surveyors, architects, arboriculturists and many more professionals to provide unique structural solutions since 1997.


Historic Buildings & Conservation
Target has carried out repairs and restorations on many historic buildings - from castles to farmhouses - each with its own unique defects and requirements. This has led to the development of numerous creative repair techniques to enhance the structure with little aesthetic effect. This increases the building's longevity and safety, whilst maintaining the rustic charm.

Interpreting Cracks
Cracks can manifest themselves in many different directions, shapes and sizes as a result of the properties of masonry and the forces imposed upon it.

Causes of Cracking
Cracks are often the result of material defects, design flaws and external influences. The repair solution will vary depending on the cause of the cracking.

The Design Philosophy
Whilst standard "off the shelf" guidance is readily available, causes - and subsequently repairs - are often more complex than guidance can cover. By considering the lowest possible level of complexity at each stage, a complex design can be systematically compiled.


Practical Application

Many theoretical propositions work perfectly on paper. Buildings aren't founded on paper, and the theory needs to be applicable on-site - even in the rain.

Construction Solutions
Target has been manufacturing materials for structural repair solutions for over 20 years. We have amassed a wealth of knowledge spanning many domains within our narrow field. We take pride in offering a complete solution, from advice and guidance to surveying, design work and installation. Combining these elements ensures unity across the board.





Agenda

08:20 - Registration
08:30 - Seminar - Rules For Reinforcing Masonry (Part 1)
09:15 - Breakfast
09:30 - Seminar - Rules For Reinforcing Masonry (Part 2)

Venue

The Oxfordshire Golf Hotel and Spa,
Rycote Ln,
Milton Common,
Thame,
OX9 2PU
Map

Event Announcement - Rules For Masonry Reinforcement (CPD Presentation) & Networking

Location: Milton Keynes      Date: 07 April 2020




You are invited to attend our brand new CPD seminar on Rules for Masonry Reinforcement that we are hosting at The Woburn Hotel on Tuesday, 7 April 2020. You can have a bite to eat, network with fellow like-minded professionals and be given an introduction to our products and systems.


Topic Overview


Target has been working with structural engineers, building surveyors, architects, arboriculturists and many more professionals to provide unique structural solutions since 1997.


Historic Buildings & Conservation
Target has carried out repairs and restorations on many historic buildings - from castles to farmhouses - each with its own unique defects and requirements. This has led to the development of numerous creative repair techniques to enhance the structure with little aesthetic effect. This increases the building's longevity and safety, whilst maintaining the rustic charm.

Interpreting Cracks
Cracks can manifest themselves in many different directions, shapes and sizes as a result of the properties of masonry and the forces imposed upon it.

Causes of Cracking
Cracks are often the result of material defects, design flaws and external influences. The repair solution will vary depending on the cause of the cracking.

The Design Philosophy
Whilst standard "off the shelf" guidance is readily available, causes - and subsequently repairs - are often more complex than guidance can cover. By considering the lowest possible level of complexity at each stage, a complex design can be systematically compiled.


Practical Application

Many theoretical propositions work perfectly on paper. Buildings aren't founded on paper, and the theory needs to be applicable on-site - even in the rain.

Construction Solutions
Target has been manufacturing materials for structural repair solutions for over 20 years. We have amassed a wealth of knowledge spanning many domains within our narrow field. We take pride in offering a complete solution, from advice and guidance to surveying, design work and installation. Combining these elements ensures unity across the board.





Agenda

08:20 - Registration
08:30 - Seminar - Rules For Reinforcing Masonry (Part 1)
09:15 - Breakfast
09:30 - Seminar - Rules For Reinforcing Masonry (Part 2)

Venue

The Woburn Hotel,
1 George St,
Woburn,
Milton Keynes,
MK17 9PX
Map