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EXPAMET
ESTABLISHED QUALITY 

Expamet encompasses a wide range of products designed and manufactured in Britain and trusted by generations of construction professionals.

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Windposts are designed to offer an alternative, cost-effective method of providing the additional stiffness that a masonry wall requires as specified by the Structural Engineer.

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BUILDERS METALWORK
BUILDING INDUSTRY EXPERTISE SINCE 1889

A wide range of straps, fixings, angles and brackets, wall starters, ties and reinforcement

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PLASTERERS ACCESSORIES
BUILDING INDUSTRY EXPERTISE SINCE 1889

Arch formers and accessories, plus beads in coated or galvanized metal, stainless steel and uPVC

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Masonry Support
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BAT Masonry Support is a range of bespoke systems designed to carry masonry cladding on steel or concrete structures.

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Wall Stopend – Construction Joints Thin wall

In stop ends to thin walls (less than 900mm thick), the Hy-Rib will often be fixed to span vertically with the supports fitted horizontally. The concrete pressure diagram may not be uniform and will reduce near to the top, so that the distance between supports can increase in the top 3m of the pour.

Centre to Centre spacing of the supports from top of the wall and the approximate height of wall

Numbering of Supports Grade
2411
Grade
2611
Grade
2811
support spacing approx. wall height support spacing approx. wall height support spacing approx. wall height
mm mm  mm  mm  mm mm
1 > 2 650 note 5 575 note 5 550 note 5
2 > 3 575 note 5 525 note 5 500 note 5
3 > 4 525 1750 275 1575 450 1500
4 > 5 475 2225 425 2000 400 1900
5 > 6 425 2650 375 2375 375 2275
6 > 7 375 3025 325 2700 325 2600
7 > 8 375 3400 300 3000 275 2875
8 > 9 375 3775 300 3300 275 3150
9 > n 375 4150 300 3600 275 3425
Load in the supports Approx. 14.3 kN/m Approx. 11.4 kN/m Approx. 10.5 kN/m

 

Technical Support

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NOTES

The Hy-Rib is used in vertical sheets with the ribs pointing into the concrete. The value of support spacing is measured centre to centre of the vertical supports and is NOT the clear distance. The supports to the Hy-Rib are horizontal and are a minimum of 50mm wide. The approximate load per metre of the supporting members is given as a guide only. It is assumed that the Hy-Rib is continuous over at least three spans (i.e. over four horizontal supports). If this is not the case, refer to a designer for the increase in load on the supports.

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Part of the Birtley Group

Birtley began life as Birtley Building Products in 1965, based at the current site in County Durham. Originally a steel fabricator for the area’s mining and power generation industries, the company made its first steel lintels in 1967. Since then, Birtley has grown from reliable local supplier to a UK-wide force in construction design technology and product development.

In 1889, the British Metal Expansion Company was established in Hartlepool. It had sole European rights for the manufacture of expanded metal mesh, mainly for use as reinforcement and lath in the rapidly expanding sector of concrete construction. The business that grew from these early days later changed its name to Expamet.


Acquired by Birtley Group in 2015, Bowater Doors is a nationally-known name synonymous with top quality and imaginative composite residential door design and manufacture.

The product portfolio offers exclusive ranges for trade installers and a retail range providing doors direct to consumer and social housing organisations.

Birtley Galvanizing boasts one of the most impressive galvanizing plants in Europe. The plant achieves the finest quality hot-dip galvanized zinc protective coatings to BS EN ISO 1461. Using state-of-the-art technology the plant processes steel products using a computer controlled, automated handling system, enabling Birtley Galvanizing to provide full project solutions to many industries.