Rothoblaas self-adhesive membranes

Rothoblaas solutions for prefabrication

In the world of timber construction, the ability to preassemble part of the construction elements facilitates construction site work both in terms of speed and in terms of waste management; as a result, it improves the operators’ quality of life.
The choice of a supplier, therefore, will be based primarily on the availability of materials suitable for pre-fitting.
Rothoblaas membranes, along with other sealing and insulating products, are not specifically designed to be preassembled, but being useful in a prefabrication context is their inherent characteristic.

Rothoblaas self-adhesive membranes

The advantages of high-performance adhesives and application contexts Installing a self-adhesive membrane is simple and intuitive, but the application context and the adhesive’s performance, can make all the difference. Consider the need to waterproof Mass Timber panels that will form the framework of a timber building. The application context of the membrane makes all the difference.

Application in a manufacturing plant

Having a horizontal panel available within a manufacturing plant offers a range of advantages that the construction site does not have:

  • The panels are clean and free of “construction site” dust
  • Consequently, membrane adhesion will be better and stable
  • “Horizontal” application is much faster than vertical application where the panel is already positioned to be part of the building structure
  • The application space will be significantly clearer of obstructions than on the building site
  • The panel is delivered ready to use and protected from weathering
  • Operators doing the pre-fitting have greater comfort
  • They are protected from dust, rain and wind

Why a self-adhesive product

In addition to speeding up the application and adhesion of the membrane to the panel, the high-performance adhesive will avoid the typical problems of transportation to the construction site.
Pre-fitted non-self-adhesive products do not guarantee the same performance as products that are so. Consider a non-adhesive membrane that is fitted to a CLT panel before it arrives at the construction site: mechanical fastening with staples is not as fast as adhesive fastening and will result in numerous micro-slits that must be repaired with sealant tape.
A mechanically fastened membrane may have problems detaching from the staple due to air friction both during transport and while on the construction site.
A further competitive advantage of adhesive products is that they maintain a certain degree of waterproofing despite accidental tears or in cases where it is necessary to puncture them.
Let’s consider a membrane pre-fitted on a CLT panel. To transport the building element to the construction site, it is necessary to insert lifting hooks and then drill at least two holes.
For a self-adhesive membrane, infiltrations of water or moisture will not affect the performance of the CLT because the problem will remain confined to the perforated surface. In contrast, the risk of damage for a panel with a non-adhesive membrane is higher.

The steps of installing a Rothoblaas self-adhesive membrane

Unrolling, gluing edges toward the centre, adhering by roller pressure.  Their ease of application gives a huge advantage to these types of products already designed to be high-performing.
Rothoblaas’ main self-adhesive membranes are: TRASPIR ADHESIVE 260, BARRIER NET ADHESIVE 200, VAPOR ADHESIVE 260. Using high-performance adhesives, they are all suitable for application to rough surfaces while maintaining the functions for which they were designed.
Specifically, BARRIER NET ADHESIVE vapour barrier features a reinforcing grid that provides very high mechanical strength and reduces the risk of slipping. Since it is transparent, it is especially ideal for protecting buildings with exposed timber façades.

Learn more

Rothoblaas membranes consist of several layers. They are always comprised of a functional film that ensures perfect waterproofing and airtightness and one or more reinforcing layers that provide protection for the functional film. This structured composition increases the mechanical performance and abrasion resistance of all our membranes. With the aim of supporting modular and prefabricated construction, Rothoblaas is expanding its range of membranes, sealants and self-adhesive tapes.

CLICK HERE for further information and contexts of use for Rothoblaas’ self-adhesive membranes

 

 

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Pre-assembly – saving time and labour costs

Pre-assembly
With our pre-assembled solutions, you can save up to 60% of time spent on-site – not only saving you time but reducing labour costs.

Design process:
Firstly, we will learn more about the vision of your project, to help advise which product would be the most beneficial for your end goal. Our technical team will design a stack bespoke to your project and will provide detailed CAD drawings and 3D models of the stack arrangements for site approval. All of our products are BIM ready, our BIM Libraries are designed to aid the data transition, creating a leaner process that reduces design time. By providing small file sizes in the generic content, it will make it easier for early-stage specification in BIM. These ‘data-light’ files can then be overwritten with the full data specification libraries without issue, speeding up later stages of development that require more detailed plans.

Manufacture:
We will then begin assembling your stacks which will be quality inspected & air tested in our Telford foundry. When each stack is fully assembled it is air pressure tested as standard to 0.5 bar for 5 minutes exceeding the requirements of BS EN 12056-2:2000, saving considerable on-site labour time. Lastly, each stack will be clearly labelled with the exact floor and relevant location reference to ensure a smooth installation process.

 

Delivery & Installation:
We will then work closely with our distribution partners to plan the delivery of your stacks around your project’s schedule to ensure you have everything you need, exactly when you need it.
We supply our stacks in purpose-made stillages designed to provide robust storage, keeping them secure and safe during transportation to the site. Our stillages are designed at a standard 1.75m length and 20kg weight, specifically designed for one-person handling allowing ease of movement around the site and halving the labour costs for installation. Being cast iron, our pipes will give you an element of flexibility on-site which can’t be achieved from any other material, as our pipes can be cut on-site, allowing for onsite variances and retrospective changes to the system.
Not only will our bespoke design minimise wastage, but our systems are made of 99% recycled material and are 100% recyclable without degrading cast irons’ robust properties – helping lower your project’s impact on the environment. Our systems are connected via mechanical couplings; therefore, if the building is repurposed before the product’s end of life (which has a design life of 70 years) the system can be altered retrospectively. Avoiding extra cost if the building is repurposed and minimising labour.  You can also receive an extended 10-year warranty by using our PAM Warranty app. When we manufacture your stacks, we will upload their air-test results to your project on the app. All we would need from you is simply an image of the installed stack to sign off the installation quality, and you are legible for our extended 10-year warranty.

 

 

 

 

www.pambuilding.co.uk/pre-assembly

 

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Lathams incorporates WISA® BioBond across its UPM WISA-Spruce range

UPM’s ultra-sustainable new technology, WISA BioBond, becomes standard bonding agent in all James Latham Ltd’s collection of UPM WISA-Spruce.
Today, James Latham Ltd (Lathams), one of the UK’s leading independent distributors of panel products, announces the introduction of WISA®’s new BioBond technology to its full range of WISA-Spruce plywood.

WISA BioBond is the latest bonding innovation from UPM, a globally-renowned manufacturer of sustainable architectural plywood, now used in the entire WISA-Spruce range.
A landmark development in plywood adhesive, BioBond replaces at least 50% of standard glue’s fossil-based phenol with lignin, timber’s inherent bonding agent.
Obtained as a by-product of the Kraft Process1, this partial-substitution reduces the carbon footprint of WISA-Spruce by approximately 10%, without compromising technical performance or visual appeal.

No compromise on performance
WISA-Spruce is manufactured using UPM’s proprietary BioBond technology, and mirrors the qualities of plywood produced using the traditional higher-carbon bonding method. This means it offers a like-for-like greener alternative.
As with all WISA’s plywood, WISA-Spruce with BioBond technology has undergone rigorous testing to guarantee its high performance qualities, meeting superior standards of strength, resistance and sustainability.

Forming a strong and sustainable bond
More than just a new form of glue, BioBond has reduced CO2 WISA’s plywood portfolio, Already available for birch, and now spruce, plywood, UPM plans to roll out BioBond across all its plywood mills, gradually covering its entire range.
As one of the UK’s most sustainable materials distributors, Lathams is keen to introduce UK specifiers to the low-carbon advantages of WISA-Spruce with BioBond technology. By incorporating this innovation to its ever-expanding collection of green architectural materials, they are demonstrating their ongoing commitment to supporting sustainable design and build.
Commenting on the introduction of BioBond to the WISA-Spruce range, Nick Widlinski, Panels Director at Lathams says, “There’s no doubt timber and wood-based materials are helping architects and designers tackle global climate change through making lower-emission material choices. However, a question around the carbon intensity of glues and adhesives used in the production of engineered wood persists, and WISA BioBond tackles it head on. Its introduction and standardisation across the brand’s high-performance spruce range is a game-changer, offering the best quality with a reduced carbon footprint. Not only is it helping us to promote more sustainable construction methods, it’s also supporting a wider drive toward a Net Zero society.”
UPM’s VP of Strategy and Business Development, Susanna Rinne, concludes, “Sustainability is at the heart of our ethos and guides our ongoing R&D. We are the first manufacturer in the world to use a lignin-based solution for spruce and birch plywood, offering a no-compromise sustainable material solution. It’s imperative we work with those who have similar values. Due to Lathams’ longstanding reputation for championing sustainable specification make them a great partner to help us introduce BioBond and its unique properties to the UK and Irish markets.”
Providing further confidence in WISA-Spruce’s green credentials and certification, the product category scored one of the best ratings on Lathams’ new Carbon Calculator tool. An academically developed formula which scores the embodied carbon of each Lathams’-stocked timber product from cradle-to-purchase, BioBond WISA-Spruce achieved top ranking across the board, providing third party verifications for the material’s sustainability claims.

CLICK HERE to find out more about BioBond,

WISA-Spruce and UPM’s wider collection of WISA plywood

To discover Latham’s wide range of materials,

and realise the potential for almost any design preference or requirement CLICK HERE

1. The method used to convert wood into wood pulp

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Envirotile – the lightweight, sustainable roof tile

Envirotile is a revolutionary roof tile system with a unique fixing system which is fully compliant with BS 5534 and it can be installed to a minimum of 12.5° pitch.

It is significantly lighter than other tiles making Envirotile extremely suitable for use on modular and timber frame constructions. The lightweight tile aids the build by minimalising differential movement in such structures.
Plus due to the unique fitting system developed by roofers, installation is simple and easy, saving time compared to traditional tiles, and offers a complete dry fix system with no mess cutting.
The sustainable choice
Envirotile is manufactured from 75% recycled product and is fully recyclable at end of life.
It is backed by GreenSpec which is the foremost ‘Green Building’ resource in the UK. Independent of companies and trade bodies and launched in 2003 with government funding, GreenSpec promotes sustainable building products, materials and construction techniques.

Equinox Vega
Named after one of the brightest stars in the northern hemisphere, Equinox Vega is here to meet end users’ desire for natural light. The addition of full height glazing panels up to one metre wide and three metres high of clear glass can now feature as part of the Equinox Roof System, flooding conservatories with additional light and creating an impression of more space when several panels are used together.  Equinox Vega also works seamlessly alongside Envirotile, which is available in a range of design options.

Finishes
Envirotile is available in two finish effect options – our original tile with a textured finish and our latest addition of the slate-effect finish – both are aesthetically pleasing in all aspects.
The textured finish tile is available in Brown, Slate Grey and Anthracite Black, and the slate-effect tile in Brown, Slate Grey and Anthracite Grey.
Plus ridge, hip and end caps all available to ensure the roof is completed to the same green credentials.

Designed to perform
Envirotile has undertaken rigorous testing with many professional bodies so that we can ensure that it is more than fit-for-purpose and will withstand all the British weather will throw at it. So much so that we guarantee it for 40 years.
They are also fully guaranteed to perform against severe UK wind loads in any designated zonal area within the UK and we offer a free replacement service for dislodged roof tiles caused by gale force winds up to 65mph (subject to our Terms & Conditions).

Cost saving, sustainable roof tile
BBA certified
Conforms to BS 5534:2014
Greenspec Endorsed
80% lighter than concrete tiles for easier handling and safety
Only 12 tiles per sq. m
Choice of standard and slate effect across 5 colours to match most roof types
No harmful dust created during the cutting process
Proven and tested at a low degree pitch of 12.5° against wind driven rain
Weather tested to 147mph wind loads
Improved grip surface
Virtually unbreakable
Anti-fungal properties
Low maintenance
UK manufactured
Ridge products available

At less than 8 kilos per m², Envirotile is the lightest synthetic roof tile making it the ultimate choice within lightweight roofing, yet is virtually unbreakable.

 CLICK HERE  to find our more

CLICK HERE to email us

or call on 0333 005 6525 to discuss your requirements

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