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TekGuard Fire Rated Liquid Roofing Overlay System

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Just 3 quick answers: roof surface, what you need to do, and roof size. We will show the matching kit or the right next step.

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About Hybrid Flexi GRP Fire Rated & buying advice

Shop TekGuard liquid roofing kits for fire-rated flat roof overlay projects and reinforced liquid waterproofing where upgraded performance needs to be considered.

Buying guide

Choose Fire Rated Hybrid Flexi GRP Overlay for overlaying or refurbishing a suitable existing flat roof without stripping everything back to a new deck.

Good choice when

  • Use this category for overlaying or refurbishing a suitable existing flat roof without stripping everything back to a new deck.
  • Use it when the surface is sound existing roof surfaces prepared for liquid roofing.
  • Use it when the measurements, preparation work and related accessories have been checked.

Consider another route when

  • Do not use this category when the existing roof is rotten, saturated, unstable or unsuitable for coating without remedial work.
  • Do not use it when the roof is unsafe or unsuitable without preparation.
  • Do not use it as a shortcut if another CRS system is a better fit.

Next step: Choose the system by roof surface, fire requirement, expected movement and detail complexity.

TekGuard Flexi-GRP: BROOF(t4) Fire-Rated Overlay System

TekGuard is the fire-rated version of the Hybrid Flexi-GRP overlay range from KoverTek, certified to BROOF(t4) under BS 476 Part 3 / CEN/TS EN 1187-4. It replaces the separate GRP resin, matting and topcoat of a traditional GRP system with a single liquid-applied product that bonds to existing felt, GRP, metal and bitumen surfaces without full strip-off. The low styrene emission formulation reduces fumes compared with traditional GRP, and the flexible cured membrane resists the thermal cracking that can affect rigid laminate systems in the long term.

TekGuard vs Evergreen Hybrid: The Fire Rating Decision

TekGuard and Evergreen Hybrid are the same Flexi-GRP system family — the practical difference is fire classification. Evergreen Hybrid is the standard version for domestic and trade overlay projects where fire rating is not required. TekGuard is the BROOF(t4) certified version for projects where building control, a specifier or a contract document requires fire-rated overlay performance. If in doubt, consult building control — using TekGuard when only standard performance is needed costs more without benefit, but using Evergreen Hybrid where fire-rated is specified can cause a compliance issue.

TekGuard vs Fire-Rated Standard GRP Kit: Which Route?

A fire-rated standard GRP kit on new OSB3 decking and TekGuard overlay serve different situations. If the existing roof deck is sound and suitable for overlay, TekGuard avoids deck replacement cost and disruption. If the deck is rotten, soaked or structurally compromised, deck replacement and a fire-rated GRP kit is the correct route — no overlay system can compensate for a failed structural deck.

Frequently asked questions

What is TekGuard used for?

TekGuard is used as a fire-rated liquid roofing overlay system for flat roof refurbishment and waterproofing projects.

Is TekGuard for quick leak repairs?

It is mainly positioned as an overlay/refurbishment system. For quick localised leak repairs, TekCryl may be a simpler option.

Is TekGuard suitable for building control projects?

It may be suitable where upgraded fire performance needs to be considered, but the exact project requirement should always be checked.

What is the difference between TekGuard and Evergreen Hybrid?

Evergreen Hybrid is a flexible overlay system, while TekGuard is positioned around fire-rated overlay requirements and upgraded specification work.

Can TekGuard go over an existing roof?

It can be used for overlay work on suitable prepared surfaces, but the roof must be sound and compatible before application.

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