Quick Links - Click To Jump To Section:

 
• Why TekGuard Flexi-GRP?
• Preparation & Application
• Frequently Asked Questions
• Material Safety
• Disclaimer

Why TekGuard Flexi-GRP?

Kovertek have developed TekGuard with the professional liquid roofing applicator in mind, speeding up the installation process. TekGuard Flexi-GRP is a liquid system that forms a flexible GRP membrane designed to waterproof new and existing flat roofs without the need to strip and replace the existing deck*.

With the highest fire rated certification onto OSB3, TekGuard has achieved BS.476 Part 3 - F.A.A. & Broof(T4) onto OSB3, which means it can be used on any domestic/commercial property and meet any building regulations for flat roofs pertaining to fire protection.

You can install TekGuard products with the confidence of knowing you will receive continued support now and in the future:

• Full technical support for products and installation processes.
• Guarantees to suit you and your customers.
• Support on how to specify the TekGuard Flexi-GRP roofing system, and how to comply to legislative regulations, etc.

* Where existing deck is suitable, please read the full installers guide before commencing work.

Preparation & Application

The KoverTek TekGuard Flexi-GRP Installers Guide should be downloaded and read prior to use for comprehensive information on preparation and use of the products within this system.

Frequently Asked Questions

Does the weather/temperature affect TekGuard Flexi-GRP when installing?

Yes, high temperature and adverse weather are main reasons that liquid roof installations can fail, so follow these steps to avoid problems.

• Always check local weather forecast.
• In the summer avoid using product above 35°C and in winter below 5°C check the temperature of the deck and materials with an infrared thermometer if unsure.
• Keep materials at an ambient temperature and avoid either leaving outside in cold/sun before commencing work (ideally around 15°C for best performance).
• Avoid catalysing large amounts of TekGuard primer or Flexi-GRP. Ideally 1-2kg for Tekguard Primer and 2-5kg max for TekGuard Flexi-GRP. This avoids the product being incorrectly mixed when catalysing (leading to undercure or uncured streaks, also this will give you the best working time required and avoid having to rush due to mixed product curing in the bucket, leading to costly waste.
• Always avoid the surface/boards from getting wet, NEVER lay onto wet/damp surfaces, if it rains whilst installing always cover.
• Don’t apply the TekGuard Flexi-GRP or Flexi-GRP Primer at the height of a hot day (30+ degrees c) in direct sunlight and avoid applying in winter after 3pm as it will take longer to cure as temperatures drop quickly and potentially remain tacky.

The TekGuard Flexi-GRP is staying tacky and not going hard or I have streaks of soft areas?

It is essential you always add Catalyst to every mix, get into a routine of double checking that you’ve added the catalyst and mixed it thoroughly, most issues are due to the incorrect % addition, not fully mixing to the bottom of the container or forgetting to add catalyst in before applying. Never confuse Acetone cleaner for catalyst. Also always use weight as a measure and not volume i.e litres, as this will under calculate the amount of catalyst required.

To make sure you have the best mix you can pour half of your full mix (ie 2.5kg if mixing a 5kg batch of TekGuard Flexi-GRP) adding the correct amount of catalyst for the full mix then pour in the remaining 2.5kg and stir thoroughly. This means the catalyst is more evenly dispersed in the mix and not splashed up the sides of the container when poured on top.

The TekGuard Primer/Flexi-GRP has gelled or hardened in the bucket before I could use it?

This is a common problem if either adding too much catalyst or not changing it to suit the temperature or you have mixed too much in one go, the more you mix the hotter it gets if left in the bucket. Never mix a full keg.

There are white fibres of the chopped strand mat showing?

This is due to not applying the correct amount of TekGuard Flexi-GRP and ‘wetting’ out of the CSM fully, always ensure that all fibres are well coated with resin and consolidated with the paddle or fin roller before laying the next row.

There are windows, vehicles or vegetation close to the roof, what should I do?

Try to cover any area that may be affected by spills, splashes or drips with polythene sheeting or similar, when using the paddle/fin roller vigorously this can lead to resin spray that can go beyond the perimeter of the roof. Work the roller steadily and systematically to avoid this and if you do get any liquid on surfaces it can be wiped clean with a clean cloth with a small amount of acetone on. Hardened material will bond to a lot of surfaces and will require mechanical removal, so this is best avoided.

There is standing water/ponding on the roof?

The roof has either not been fitted with adequate fall to allow for drainage or the boards have been laid incorrectly, ponding doesn’t affect the performance of the roof but can be unsightly and should be avoided.

Material Safety

NOTE: Please refer to Product MSDS SHEETS for advice on safe handling – available to download above under the ‘DATA SHEETS’ tab.

It is of extreme importance that protective gloves and eye protection are worn when handling base, hardener or mixed product. Spills or splashes must be removed immediately – if allowed to dry, material can only be removed mechanically or with heat and/or harsh chemicals.

All wet components of this system are environmentally hazardous. Do not allow wet product to enter water courses, drains, sewers or the general environment. For professional use only.

Disclaimer

The advice and information given in here is given freely and in good faith and is based upon data provided by KoverTek. This information is based on KoverTek’s extensive laboratory testing and experience, but KoverTek cannot test for every eventuality. It is the customers responsibility to ensure that the product is fit for their intended purpose. KoverTek cannot guarantee anything but the quality of the product and cannot be held responsible for the results obtained.