Stainless Steel Weep Hole Guard Now Available

Stainless Steel Weep Hole Guard Now Available

With the continually increasing importance of fire safe products, we are always working with our strong supplier network to find products that meet current requirements.

We now have a stainless steel weep available to meet current demand in the industry. The December 2018 amendment to Approved Document B: Fire Safety of the building regulations prohibits the use of combustible materials in residential buildings over 18 metres.

Guidance taken from the NHBC Standards Technical Requirement 3 advise that stainless steel is a suitable materials because it is classified as A1 non-combustible, therefore meeting the requirements of the NHBC and the amendment to building regulations.

Weep guard protects drainage holes

The holes in the guard allow ventilation and allow water to exit, but are small enough to prevent rodents and insects entering the cavity.

Made from stainless steel

Meets new building regulation requirements for non-combustible products within cavity walls.

No tools required for installation

Simply push the guard into the drainage holes.

Can be cut down on site

The weep guards are made to a standard size of 6mm, however if the drainage hole is shorter than this then the guard can be easily cut on site.

How does it work?

stainless weep guard - how to steps

For more details or to place an order contact our sales team on 08448 50 40 50

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Grayson is continually monitoring both government advice and the wider situation in the industry so that we may anticipate and mitigate any potential issues.

We have thus far implemented all advice given by HMG.

We have provided information from NHS to our team members and have put additional measures in place at all our offices to minimise risk to our employees.

The business typically has a significant stock holding on all lines, and generally holds three months stock on fast moving products. It also has multiple branches that the business can operate from.

Nearly all our products are from UK manufacturers.

Currently all our suppliers are confident in supply, but they too are monitoring the situation.

We are in the process of implementing a robust plan should staff or the wider business have to isolate.

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Taking fire safety seriously

Taking fire safety seriously

Recently the industry has demanded for 4 hour cavity fire socks to be installed in buildings. Previously 1 hour fire socks were standard practice. 

We always listen to and work towards customer requirements and now we only stock Arc standard socks which are 4 hour fire rated in masonry up to 150mm.

Why use 4 hour cavity fire socks as standard?

 Helps prevent loss of life
Allows emergency services more time to attend the fire
Delays the spread of fire to other compartments and neighbouring buildings
Minimises damage to buildings and contents

Why use Arc cavity fire socks?

 Independently tested and certified by Warrington Fire Research
  Datasheets available online
  Full traceability back to product batch

Arc cavity stop sock comparison

Arc standard cavity sock

Packed with non-combustible mineral wool insulation
Superior density provides resistance to breakage
Thicker than standard socks from other brands
Up to 4 hours fire rating up to 150mm
Up to 2 hours fire rating up to 300mm

Another brand standard cavity sock

Not as densely packed
Vulnerable to breakage from general impact before and during installation
1 hour fire rating up to 300mm

For more details contact your account manager on 08448 50 40 50
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Grayson Proudly Sponsor the 2019 Brick Awards

Grayson Proudly Sponsor the 2019 Brick Awards

Grayson were honoured to sponsor the Brick Awards for another year! The Brick Awards is an annual ceremony to celebrate the best brickwork projects across 15 categories and it is an integral part of the brick industry calendar. Grayson sponsored the Refurbishment category which shows recognition and appreciation to 9 of the best refurbished buildings using UK bricks.

The annual ceremony took place at a new venue this year, the Royal Lancaster Hotel in Bayswater London. The awards were attended by leading architects, housebuilders, developers, contractors and suppliers and this year Clare Spivey, Chris Bentley and Kerry Price represented Grayson.

The Brick Development Association organise the Brick Awards which have been running for 43 years. Keith Aldis, CEO of the BDA kickstarted the ceremony and we then heard from Head Judge Hillary Satchwell.

The chosen charity for the evening, CRASH, then took to the stage. CRASH specialise in helping homelessness and hospice charities improve their buildings, to enable them to provide better shelter and services.

Gyles Brandreth was an excellent host for the evening providing a great atmosphere for the ceremony.

Clare Spivey presented the Refurbishment award, congratulations to the Royal Academy of Arts project for winning! Kerry Price attended the awards for the first time, saying “it was a fantastic experience and great to see all the amazing projects shortlisted for the awards”.

Here are all the winners and commendations for the 2019 Brick Awards, congratulations to all!

Supreme Award
Winner: The Dorothy Garrod Building, Newnham College

Individual Housing Development
Winner: Kenwood Lee House
Commended: Hulmefield Hall
Commended: Ten Oaks Farm

Small Housing Development
Winner: The Interlock
Commended: The W1 London
Commended: Weymouth Mews

Medium Housing Development
Winner: The Dorothy Garrod Building, Newnham College
Commended: Gainsford Road
Commended: Roof Gardens

Large Housing Development
Winner: Porters Edge (At Water Yards)
Commended: Hox Park

Urban Regeneration
Winner: Raidió Fáilte / Líonra Uladh
Commended: Elephant Park
Commended: New Gorbals Health and Care Centre

House Builder
Winner: Croudace Homes

Winner: The Ray Farringdon
Commended: The Caxton at Buckingham Green

Winner: Cambridge Central Mosque
Commended: The Defence National Rehabilitation Centre

Winner: Royal College of Pathologists
Commended: Music School, King’a College School Wimbledon
Commended: Dancy House

Winner: Royal Academy of Arts
Commended: The Hollis Building

Winner: The Interlock
Commended: York House

Winner: The Dorothy Garrod Building, Newnham College
Commended: Fulham Palace

Specialist Brickwork Contractor
Winner: Lee Marley Brickwork

Winner: Pontsteiger
Commended: Chuon Chuon Kim 2 Kindergarten
Commended: Lipton Thayer House

Architects’ Choice
Winner: The Interlock

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Grayson (GB) Ltd Are Now A Stockist of Bekaert Products

Grayson (GB) Ltd Are Now A Stockist of Bekaert Products

Grayson (GB) Ltd are now working together with Bekaert to supply their market-leading construction products.

Murfor® Compact is a next-generation masonry reinforcement and it is now available to order from Grayson. It is made of a sturdy steel cord mesh that can be easily rolled out onto the masonry joints.

Depending on the application, there are two types of Murfor® Compact:
– Murfor® Compact I for masonry in dry, interior environments
– Murfor® Compact E for masonry that is exposed to the elements.

Installation benefits
● Can be easily rolled out onto the masonry joints
● Able to apply to a dry bed
● Can be folded around corners
● Less overlapping required
● Can be cut with snips on site

Masonry reinforcement made easy
→ Fast and simple installation
→ Efficient and durable crack control
→ Easy to stack and transport
→ Accommodates any wall width

Recommended usage:
● Murfor® Compact I-50 with a wall width of ≤ 130mm
● Murfor® Compact I-100 with a wall width of > 130mm < 200mm
● Use 2x Murfor® Compact I-50 with a wall width of ≥ 200mm
● Murfor® Compact E-35 with a wall width of 65 – 90mm
● Murfor® Compact E-70 with a wall width of ≥ 100mm

For more details on Murfor® Compact or Grayson’s other masonry reinforcement products contact your account manager on 08448 50 40 50 or view our masonry reinforcement products here.

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Grayson launch G-Tray to combat government ban on combustible cavity trays

Grayson launch G-Tray to combat government ban on combustible cavity trays

Building Regulations have been amended to prohibit the use of combustible materials in the external walls of buildings over 18 metres that contain one or more dwellings; an institution; or a room for residential purposes – including student accommodation, care homes, sheltered housing, hospitals and dormitories in boarding schools. The new Approved Document sets out amendments to guidance previously published in Approved Document B: Fire safety, Volume 2 – Buildings other than dwellinghouses.

The Approved Document takes effect on 21 December 2018. Previous regulations will apply where a building notice or initial notice has been given or plans deposited with local authority before 21 December 2019. The new document states that the external walls should adequately resist the spread of fire over the walls/roof and from one building to another. It also states that all materials that become part of the external wall must be A2-s1, d0 or A1 classified.

Information on European classifications taken from BS EN 13501-1:2007+A1:2009:

Class Definition
A1 Will not contribute in any stage of the fire, including the fully developed fire, or present a smoke hazard
To comply with The Building (Amendment) Regulations 2018 an A2 product must have the highest classification of A2 (A2-s1, d0)
Will not significantly contribute to the fire load and fire growth in a fully developed fire, and further defined through “s” and “d” characteristics
The characteristics “s” for smoke and “d” for droplets are defined as:
s1 Weak or no smoke
s2 Medium smoke
s3 High smoke
d0 No flaming droplets/particles
d1 Slow dropping recorded
d2 High dripping recorded

There are some products/materials that are excluded from the new requirements, these include:

  • cavity trays when used between two leaves of masonry;
  • any part of a roof (other than any part of a roof which falls within paragraph (iv) of regulation 2(6)) if that part is connected to an external wall:
  • door frames and doors;
  • electrical installations;
  • insulation and water proofing materials used below ground level;
  • intumescent and fire stopping materials where the inclusion of the materials is necessary to meet the requirements of Part B of Schedule 1;
  • membranes;
  • seals, gaskets, fixings, sealants and backer rods; 
  • thermal break materials where the inclusion of the materials is necessary to meet the thermal bridging requirements of Part L of Schedule 1; or
  • window frames and glass.

The use of combustible cavity trays between an SFS inner and masonry outer leaf has been banned. To address the requirement for a non-combustible cavity tray, Grayson began work developing a product that provides the durability, resistance to stress, function and performance required for a cavity tray system.

Guidance taken from NHBC Standard Technical Requirement 3 advise that stainless steel is a suitable material for construction of cavity trays. Stainless steel is classified as A1 non-combustible therefore meeting the requirements of the NHBC and the amendment to the building regulations.

In July 2019 Grayson (GB) Ltd launched G-Tray™ – the world’s first stainless steel cavity tray – exclusively available via the Grayson branch network.

Because of its unique design and construction, G-Tray™ complies to both the new standards and all subsequent NHBC guidance notes. It is a tailor-made bespoke solution that is designed and manufactured to clients needs. Available in both grade 304 and grade 316 stainless steel G-Tray™ is suitable for both inland and coastal applications.

For more details on G-Tray™ or Grayson’s other fire rated construction products contact your account manager on 08448 50 40 50

To read more about the regulation update visit:

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