ROOFING
SEAL OF APPROVAL C
BMI Icopal’s Sealoflex Cold Liquid Systems offer complete solutions for all flat roofing challenge
onstruction activity surged last year as the UK emerged from lockdown, but this demand didn’t stop. In fact, it’s set to increase year on year. This means that flat roofing contractors and specifiers need to find solutions to the challenges they face every day. From schools to offices and warehouse buildings, flat roofs are particularly common on commercial buildings that are in use almost all year round. This makes repairing or replacing the roofs a particular challenge for flat roofers as they aim to minimise disruption and ensure safety for all involved. This is where BMI Icopal’s Sealoflex Cold Liquid Systems can help.
Sealoflex is a range of cold-applied liquid waterproofing systems that can provide a full range of liquid applied roofing solutions. Enabling wet-on-wet application without the need to remove existing equipment, Sealoflex is made up of three technologies, Sealoflex Ultima, Sealoflex Endura, and Sealoflex Prima, all offering multiple benefits when compared to more traditional roofing technologies.
“The three-technologies of the Sealoflex
range deliver complete flexibility, complete coverage, and complete peace of mind,” says Matt Woodyatt, Technical Training Manager at the BMI Academy.
“Sealoflex meets every demand for a waterproof flat roof, whilst minimising downtime and disruption to projects and the flow of life around them.”
Minimising disruption Ideal for projects where the building is occupied or in use, Sealoflex Ultima, a single-component, polyurethane-based liquid that can be used straight out of the box, presents minimal disruption throughout the process of refurbishment due to the health and safety benefits it provides, making it perfect for refurbishment projects where the building may be occupied during works.
Sealoflex Endura is a PMMA-based technology, ideally suited for use on balconies and walkways or projects that have a very restricted programme time… Endura requires an additional catalyst for the PMMA to activate and therefore be applied. As such, it is very fast setting after
application - as quick as 20 minutes, making it ideal for areas that need to be accessed quickly post application.
Mitigating the weather: Woodyatt says that one of the many challenges facing the roofing industry is the British weather. “Should it rain during application, Sealoflex Ultima can be left to cure and then reapplied. This means it offers more flexibility than Glass Reinforced Plastic and laminate rolls, which would instead need to be entirely removed if it were to rain.” With the growth in focus on sustainability, many are looking at refurbishments and retro-fitting projects as ways to extend the lifespan of a building, without the environmental impacts of building anew. Liquid waterproofing is an ideal solution for this purpose. It can be applied over the top of the existing roof to create a bond to the substrate that works over fibre cement, metal and single-ply, so it’s both cost and time efficient. “Backed by BMI Icopal, the Sealoflex range is supported by our comprehensive flat roofing systems,” Woodyatt continues. “For those unsure which system to choose for their project, BMI Icopal have created a user- friendly system configurator. Simply answer the questions based on your project, such as, is the system required for a flat roof, balcony or terrace, and the system configurator will direct you to the best Sealoflex system to suit your project requirements.” BMJ
ONDULINE LAUNCHES INSTALLATION GUIDE FOR ITS NEW LOW LINE UNDER ROOF SYSTEM
O
nduline, the light weight roofing systems and water-proofing specialist, has launched an installation guide for its new under roof system, ISOLINE® LOW LINE - the only system in the UK to be BRE tested and BBA Accredited to as low as 10o with a 30-year guarantee. Designed specifically for use on low pitch roofs, this lightweight bituminous underlay sheeting has been rigorously tested and is at least three times less likely to leak compared to a traditional tile system. The installation guide explains what ISOLINE® LOW LINE is, the installations that it is suitable for, the benefits of the system and how it works. It then goes on to describe step-by-step fitting of the system with handy imagery and illustrations.
With a corrugation height of just 24mm,
ISOLINE® LOW LINE is fixed below the primary tile or slate roof covering, acting as the primary waterproofing layer of a roof. Thus, making roof tiles a secondary line of defence enabling the pitch of the roof to be much lower than the minimum as recommended by the tile manufacturer. Not only does this help to meet the demand for maximising living space, as the low pitch means the roof void can be minimised, it also enables traditional tiles to be used in situations where they wouldn’t have been able to be utilised previously, such as extensions or large roofing projects, greatly enhancing the aesthetic quality of a property.
Easy to carry, handle and fix, the non- slippery sheets are simple to cut with vertical overlaps embossed into the sheet. This makes installation even quicker and easier as it
November 2022
www.buildersmerchantsjournal.net
takes away the need to measure and it also removes confusion when it comes to knowing how much to overlap.
Due to the corrugations, ISOLINE® LOW LINE allows increased ventilation and airflow both above and below the sheet and tile battens positioned above the corrugations allow moisture to drain to the eaves which, with the enhanced ventilation, maintains excellent moisture control within the cavity. The material is also in line with the growing awareness of ‘green’ issues and the need to offer sustainable solutions as ISOLINE®
sheets are made of a minimum 50% recycled cellulose fibres, contain no asbestos and do not release any hazardous substances. BMJ
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LOW LINE
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