The control of condensation to within safe limits is an important consideration in the design and construction of buildings.
If left unmanaged, vapour produced by building occupants can have a detrimental effect upon the wooden and metal elements of a building and can reduce the thermal effectiveness of insulating materials.
Here at Graysons, we supply the complete range of Visqueen vapour control layers, which can be installed to effectively restrict the passage of warm, moist air within floor, wall, and roof constructions.
A versatile range
The Visqueen vapour control range can be installed across a range of buildings depending on the humidity levels and condensation risk.
Vapour Check –
Green tinted, semi-transparent polyethylene vapour control layer
For use in low-risk buildings that are subjected to humidity levels less than 50% at 15°C (BS 5250: 2011 class 1 condition)
Includes warehouses, industrial units, and storage areas
Vapour Barrier –
Green tinted, semi-transparent polyethylene vapour control layer
For use in medium-risk buildings that are subjected to humidity levels less than 60% at 20°C (BS 5250: 2011 class 2 and 3 condition)
Includes offices and low occupancy domestic dwellings
High Performance Vapour Barrier –
Tough multi-layer reinforced HDPE membrane with an aluminium foil
For use in high-risk buildings subject to humidity levels more than 60% at 20°C (BS 5250: 2011 class 4 and 5 condition)
Includes high-occupancy domestic dwellings, sports halls, and swimming pools
Fully Bonded Vapour Barrier –
Foil-lined modified bitumen rubber membrane with a self-adhesive coating
For high-risk buildings that require a bonded barrier
The benefits of quality vapour control
Versatile application – can be used within floor, wall, and roof constructions
Prevents condensation damage to structure and insulation
Large format and single wound rolls make for rapid installation
Ensures compliance to Part L Building Regulations
For more details on our range of vapour control products, contact your account manager on 08448 50 40 50.
The permanency of modern buildings means that any brickwork must be accurate, which is why Brick Profiles have become an essential part of a building contractor’s toolkit.
After speaking to our customers about their biggest struggles when it comes to finding a suitable Brick Profile, we’ve created a user-friendly and hassle-free profiling tool exclusively for Grayson customers.
This 2.5-metre Brick Profile is made from a lightweight aluminium and has etched markings every 75mm for bricks and 225mm for blocks, so the builder can be sure that their walls will always be level, square, and plumb.
What’s more, the profile is brightly coloured to improve health & safety, you can write your markings on and wipe-clean, and can be easily cut to size on site.
For more details on our Brick Profile or any other bricklaying products, contact your account manager on 08448 50 40 50.
With the industry’s continuing focus on fire safety, there’s never been a more important time to ensure that you are equipped with high-quality fire-separating elements.
Here at Graysons, we work hard alongside our strong supplier network to ensure that all our fire safety products meet building requirements – and it’s no different for the ARC Fire Stop Slab.
Manufactured from high-density rockfibre mineral wool and reinforced aluminium foil facing, these slabs provide up to 2 hours fire integrity within external masonry walls and offer excellent resistance to smoke.
Suitable for both horizontal and vertical applications within masonry walls
Ideal for use at separating floor levels
Available to suit cavity widths up to 300mm
Can be easily cut to required size on site
Bend Fixing Spike into an ‘L’ shape at the fold point
Fit Fixing Spike to the external surface of the inner leaf, using at least 2 fixing points to ensure maximum strength
Impale Fire Stop Slab onto the spike
Compression fit is not essential, but a snug fit is required
Significant fire and smoke protection
Independently tested and certified at Warrington Fire Research
Up to 2 hours fire integrity with traditional masonry brick and block construction
Fire classification of Euroclass A1 for rockfibre mineral wool
Manufactured to NHBC requirements and holds LABC accreditations
For more details on the ARC Fire Stop Slab or Grayson’s other fire safety products, contact your account manager on 08448 50 40 50.
Grayson (GB) Ltd are launching an innovative new tie that is an ultra-safe 2-in-1 cavity tie and movement tie. The tie boasts a range of new features to make this the most advanced wall tie on the market.
One of the main safety features is that the rounded edges of the tie are smooth to touch compared to other ties on the market. Another safety feature is the smoother underside to the holes without a cheese-grater effect.
The low profile embedment ends provides a number of additional benefits. Firstly, it allows other products like bed joint reinforcement or mesh to be placed in the cavity at the same time. The main benefit of the flat ends are that the 200mm and 225mm are fully debondable so the cavity tie can be transformed into a movement tie – just add a debonding sleeve onto one end of the tie.
The 2-in-1 benefits of this product have space saving advantages on site because one tie can be used for 2 applications. There is also less product wastage because leftover ties can be transferred to different jobs.
Another great feature of the tie is the embedment markings. There is a line marked at 62.5mm which is the recommended embedment of a tie. This feature was suggested in the Cole report after the Scottish School failures. The embedment markings allow checks to be carried out to ensure the ties are installed correctly, which provides benefit to all.
Our new 2000 Range Tie is a Type 1 Cavity Tie conforming to PD6697. It is Class A1 Fire Rated Stainless Steel which makes it ideal for non-combustible cavity requirements. The advanced contours of the new tie provide advanced moisture dissipation.
The 2000 Range Tie is now available in lengths of 325mm and 350mm as standard, without the need to place a special order.
The new tie is now available. To be the first to get the new tie, contact Grayson on 08448 50 40 50.
Grayson (GB) Ltd is the exclusive distributor to the construction industry for Oxyl-Pro Hand and Surface Cleanser. The specially formulated solution is odourless and tasteless, suitable for hard surfaces such as tools, plant machinery and touchpoints as well as hands. This environmentally friendly product is affective against COVID-19, kills 99.9% of all bacteria and is manufactured to BS EN 1276.
Oxyl-Pro Hand and Surface Cleanser is supplied in handy spay bottles and larger 5L containers for ease of use and versatility.
The Construction Leadership Council and the government have created a guide for safe working and preventing the spread of Coronavirus, this can be found here, the general theme of the guide is the promotion and best practice information for social distancing and the emphasis of increased cleaning of work areas and hands.
To order Cleaning solutions, hand sanitisers, gloves, masks, face shields and hand washing stations, speak to your account manager today.
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?
For more details or to place an order contact our sales team on 08448 50 40 50