Suppliers of: Trocal Roofing Membranes, single ply roofing membranes, composite roofing membranes, roofing systems flat roof roofing systems green roof membranes, single ply roofing membranes
Sika-Trocal provides flat roofing membranes that are suitable for a wide range of applications including new build, refurbishment, solar and green roof specifications.
CAD & BIM Files: SIKA Trocal have a comprehensive list of CAD & BIM Files. Please follow the below links to access their product ranges, or visit their CAD & PDF Download Centre and SikaSpec online specification tool.
CPD Seminars: SIKA Trocal offer a range of CPD seminars for their products: Click Here
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Main SIKA Trocal Roofing Systems:
Adhered roofing systems are suitable for both new and refurbishment applications. Sika-Trocal Type SGK fleece backed membrane is cold bonded to the substrate virtually eliminating penetration by mechanical fasteners.
Mechanically fastened systems are suitable for both new and refurbishment projects of any size. Sika-Trocal Type S membrane is mechanically fastened using the Sika-Trocal disc, a system that fastens both the insulation and the membrane, thus reducing the fasteners required for a project by 40-60% compared with other systems.
A ballasted (gravel/paved) roof will generally require a stronger supporting structure than that for the exposed membrane one, but will allow the roof to be used as a trafficked or leisure use area. Additionally a ballasted roof will provide a higher degree of sound reduction and, if covered with minimum 50 mm depth of gravel ballast or 50 mm thick pavers, is deemed to achieve an FAA fire rating.
Green roofs are becoming increasingly a prerequisite for planning approval, either through biodiversity action plans, flood risk reduction as part of sustainable drainage systems or legislation.
Green roofing systems are principally divided into three main categories: Biodiverse / Extensive / Intensive
Sika-Trocal offer a range of accessories covering all aspects of roof refurbishment and construction. These include:
- Vapour Control Layers & Insulation
- Adhesives & Fasterners
- Waterproof Coating, Sealing and Bonding
- Separation layers & Membranes
- Lightning Protection
- Rooflights & Trims
- Fall Protection Systems
Further technical information is available to download through the BPi Download Library or by visiting our website.
These files are provided by the manufacturer. While Building Products Index takes every care to ensure the information is correct and up to date, we cannot be held liable for any out of date or incorrect information in them. Please check with the supplier before specifying or purchasing products.
1. Sika Solutions for Construction UK
Admixtures for Concrete, Solutions for Concrete and Cement Production, Solutions for Waterproofing, Solutions for Flooring and Hygienic Coatings
Published [24/03/16]File size [2482 KB]
2. Sika Solutions for Hotels
Solutions for Waterproofing of Wet Rooms, car parks
Published [26/01/17]File size [1985 KB]
3. Sika Sustainability Trocal
Published [04/01/19]File size [644 KB]
4. Sika Trocal Mechanically Fixed Roofing Membrane Type S
Mechanically Fixed Single Ply Roofing Membranes Type S
Published [10/08/18]File size [355 KB]
5. Sika Trocal Adhered SGK Brochure
Adhered roofs, flat roofs, single ply
Published [10/08/18]File size [321 KB]
6. Sika Trocal Single Ply Roofing
Sika-Trocal Single Ply Roofing
Published [04/01/19]File size [1238 KB]
7. Sika Trocal Ballasted Roofs
Ballasted roofs, flat roofs, single ply
Published [03/01/19]File size [415 KB]
8. Sika RoofLite Brochure 2017
sika trocal rooflite
Published [03/01/19]File size [561 KB]
Sika Box Scuppers Product Data Sheet
Published [04/01/19]File size [131 KB]
Sika Construction Capabilities Brochure
Admixtures for Concrete, roofing membranes
Published [18/12/14]File size [1083 KB]
Sika Roofing Technology Concepts
Published [19/02/18]File size [4540 KB]
Sika Trocal - Bath University Case Study
Published [24/03/16]File size [269 KB]
Sika Trocal - Case Study Coopers Beach Holiday Park
Type S Single Ply Membrane
Published [19/02/18]File size [336 KB]
Sika Trocal - Case Study Felixstowe Pier, Suffolk
Sika-Trocal® WATERPROOF SYSTEM ENSURES REDEVELOPED PIER ROOF SCALES AESTHETIC HEIGHTS
Published [19/02/18]File size [385 KB]
Sika Trocal - Case Study Letham Perth
Published [22/12/14]File size [2111 KB]
Sika Trocal - Case Study Strada Edinburgh
Published [22/12/14]File size [1922 KB]
Sika Trocal Case Study Aureus School, Didcot
Published [03/01/19]File size [331 KB]
Sika Trocal SGmA 1.5 mm Polymeric Membrane
Polymeric membrane for roof waterproofing
Published [20/01/15]File size [146 KB]
SIKA SINGLE-PLY: STEP-BY-STEP INSTALLATION GUIDE
When considering single-ply membranes for a roofing application many things need to be taken into account: is the roof an exposed application? Is it a ballasted or green roof? Is it heavily trafficked or even a situation where the aesthetics are the most important factor? Steve Hatcher, SPM Field Technican at Sika, discusses choosing the right membrane and roofing system for the right application and how it is the first most important step. Within Sika-Trocal there are different membrane types to suit all of these applications, but it is important to choose the right one as the substrate can also determine the type of roof system.
Secondly, Sika-Trocal has a network of licensed contractors that have been trained at our academy. Sign-off inspections take place on site before guarantees are issued, reassuring clients that the products are being installed correctly and by trained labour.
SELECT FOR SUCCESS
Choosing the correct single-ply membrane also depends on a number of factors. A mechanically-fastened system may be used on a large roof area for speed of installation such as the Sika-Trocal Type ‘S’ system, where fasteners restrain both the membrane and the insulation in a single fix. If an application has a concrete substrate then an adhered membrane such as Sika-Trocal Type SGK could be used to limit the amount of mechanical fastening into the concrete.
It may be a feature roof such as a barrel-style roof, again where adhered Sika-Trocal type SGK could be used where the aesthetics of the roofing system are very important. Ballasted or green roofs - as stated - have their own dedicated membrane in the Sika range with Sika-Trocal type SGmA.
Once the membrane is installed it is then time to seal the laps to make it watertight. This is normally achieved through heat welding with most single-ply systems, but with Sika-Trocal membranes this also is usually carried out with solvent welding, making the process much quicker and more efficient. In all situations, a wind uplift calculation will need to be carried out to determine the number of fasteners required, or to establish if it is safe to install an adhered system. Sika-Trocal licensed contractors can log into the Sika-Trocal web-based programme where they can generate their own wind uplift calculations, all in accordance with the latest European codes of practice.
Sika-Trocal single-ply membranes, especially the mechanically-fastened type S system, will use membrane-laminated profile metals at all perimeters and change of angles within the roofing system to restrain the membrane. Again, these should be designed in accordance with BS 6229, therefore at upstand junctions the minimum height should be 150mm above finish roof surface.
Once the main roof is complete, the outlets and any penetrations can be completed. Roof outlets will normally be supplied in rigid PVC so the membrane can be fully-welded to these in the same way as the laps of the membrane, creating a watertight seal. Penetrations can also be detailed using rigid PVC units or Sika-Trocal laminated metals formed to suit the size and shape of the detail. Standard UPVC pipes such as SVP pipes can be detailed using single-ply membrane and fully-welded to ensure they are watertight. Any services or freestanding plant that is to be located on the roof surface will need sacrificial protection layers installed to ensure the roofing membrane is protected and to ensure there are no issues with compatibility with the support feet and pads of the units and the roofing membrane itself.
THE FINAL STEP
To complete the roof, it may be required to install a slip-resistant walkway in order to protect the roofing system or keep foot traffic to a safe area of the roof. These can be fully-welded to the roofing systems, using various thicknesses such as Sika-Trocal WBP20 or the HD walkway for more frequent foot traffic. Further items such as lightning conductor systems are available using semi-rigid PVC pads that simply weld down to the roofing sheets at the required centres, making a very quick and simple method of attachment. Fall arrest systems are also manufactured using PVC coated units in order to be fully-sealed to the roofing membranes, again providing an easy application.
Single-ply membranes are increasingly seen as a simple, modern solution for the watertight protection of a range of roofing applications. However, nothing should be taken for granted when it comes to their installation in order to guarantee long-term performance. Hopefully, this guide helps highlight a number of seemingly smaller details which should be fully-addressed to ensure a single-ply membrane lives-up to its billing as the quality, roofing solution for today and years to come.
SIMPLE INSTALLATION MAKES FAST WORK OF HIGH-PROFILE COMMERCIAL ROOFING PROJECTS
SIMPLE INSTALLATION MAKES FAST WORK OF HIGH-PROFILE COMMERCIAL ROOFING PROJECTS
by Mahroof Hussain, Area Technical Manager at Sika-Trocal
Time is of the essence in business, particularly the roofing business. Delays, however minimal, incurred during commercial new-build or refurbishment projects can lead to unexpected costs to the client. When someone falls behind schedule in a multi-trade works programme, the knock-on effect can be disastrous. If a roof’s waterproofing is held-up, interior works are also likely to be delayed with the building not being weatherproof. This means the installation of floors, walls, electrics, plumbing and the like are also put on hold. The overall effect of this type of stalling could set a project back weeks and months, rather than hours or days.
Product innovation and the streamlining of the building process itself is vital to helping contractors, developers, etc, fulfil the project expectations. Sika-Trocal’s Type S waterproof membrane presents a fine example of a system created specifically for the 21st century roofing market. Suitable for new and refurbishment projects, the Type S system uses dedicated Sika-Trocal laminated discs to fasten the membrane and the insulation to the substrate.
Mechanical fixing has been proven to speed-up the roof waterproofing process by up to 30%. The improved application time is due to solvent-welding methods devised to fuse the overlapping membrane rolls; a practice pioneered by Sika in the UK. Employing this process, rather than the more traditional heat-welding method, also results in a neater, more attractive waterproof finish. Heat welding requires a temperature of more than 350°C in order to successfully fuse membrane layers. Although there is no naked flame involved, in inexperienced hands a membrane is at risk of discoloration using this method. Mechanically- fixed, solvent-welded membranes also require less equipment to install. This benefit, along with its time-saving attributes which reduce on-site working hours, means the Type S system helps cut pollution caused by machine-based emissions.
The Type S system comprises of a vapour control layer, insulation and membrane which is held in place by Sika-Trocal discs. These are spot-welded to the membrane. The fixings allow the whole system to be mechanically-fastened to a roof’s structural deck. The added strength this provides makes the Type S membrane an ideal waterproof solution for roofs located in exposed areas where high wind uplift is a common hazard.
Speed of installation and reliable, long-term performance are the properties which attract contractors and renowned commercial brands to specify Sika-Trocal’s Type S. Supermarket stores nationwide have historically been fitted with the system. Its rapid delivery minimises disruption to businesses, hence its specification in September for a new supermarket site where its installation across a 600m2 roof area was completed in just three days.
The system’s speedy installation doesn’t compromise its quality, however. It is why Sika-Trocal’s Type S system is the rapid, long-term solution when it comes to waterproof roofing.