Roofing Services

AAC Waterproofing specialise in supplying and installing roofing products handpicked for the commercial and industrial roofing sectors. Our range of products enables us to provide our clients with the perfect building envelope solution. In addition to our own Prelasti EPDM single-ply materials, we are also approved suppliers and installers for specialist products from major manufacturers like Kingspan, Ledaflex, e-lastic and many others.

AAC Waterproofing has installation teams operating in all parts of the United Kingdom handling projects of all sizes and types, both for new build and for refurbishments, in the public utility, industrial and commercial sectors. All our engineers have specialist training and are fully qualified to work in hazardous areas, such as power sub-stations, and other challenging environments.

Prelasti EPDM Single Ply

Prelasti EPDM Single-Ply is ideal for flat or pitched roofs, or as a complete building envelope membrane. Lightweight, and with no hot works required, it is perfect for light load-bearing timber buildings. It can be cut and shaped to waterproof any complex structure.

Offsite prefabrication and the application of vulcanising technology in a controlled environment, ensures 100% joint integrity. The Prelasti membrane has proven durability for over 50 years and is the membrane of choice for a cost effective fast track option.

The key benefits of Prelasti include:

Superior durability and long term economy
Maintenance free for lower lifetime cost
Precise, BIM-friendly design and manufacture
Cost-effective installation
Environmentally sustainable
Innovative fixing techniques

Made from EPDM and prefabricated by AAC Waterproofing in a controlled factory environment, Prelasti provides 100% joint integrity. Flexible, durable and environmentally friendly, Prelasti is backed by a 20-year guarantee and has a life expectancy of 50 years. AAC Waterproofing is the UK’s sole supplier of Prelasti.

Build Off Site

Prelasti EPDM is engineered for offsite prefabrication. Assembled in a controlled environment, Prelasti provides 100% joint integrity and instant waterproofing cover for projects.

There are a number of benefits for building offsite and complements the Building Information Modelling (BIM) techniques.

Vulcanising

Prelasti EPDM employs a specific bonding technology, called vulcanisation. Vulcanisation is a chemical process for converting rubber or related polymers into more durable materials via the addition of "curatives". These additives modify the polymer by forming crosslinks (bridges) between polymer chains.

This molecular bonding process gives Prelasti 100% joint integrity – in effect, almost as if there are no joins at all. Thanks to this cutting-edge technology, Prelasti is backed by a 20-year guarantee and has a life expectancy of 50 years – far longer than many comparable waterproofing solutions.

Benefits - Build Off Site

Offsite build for waterproof roofing has many advantages and benefits over creating the structure at the project site. Off-site build such as that used by AAC Waterproofing for Prelasti leads to:

Improvements in performance and accuracy thanks to controlled (factory conditions) manufacture
Reduced waste – typically, waste is no more than 2 per cent from a factory environment, but higher at sites
Better health and safety – factories are 80 per cent safer than construction sites. On-site safety is improved as site labour is halved
Accurate design and construction compliant with BIM techniques
Streamlining of the design and build process
Cost reductions – site labour is more than twice as expensive than factory-based work, while factory-based productivity doubles site productivity
Transport cost saving, and reductions in carbon emissions for greener, more sustainable construction

Liquid Roofing

Instant Set Waterproofing System

Liquid Rubber is a unique roofing system, specifically formulated for use in the new roof and roof refurbishment sectors. With outstanding adhesion properties and a completely eco-friendly composition, Liquid Rubber is a safe alternative to traditional roofing systems and single-plies alike. Liquid Rubber Instant Set is spray applied onto the surface and instantly sets on contact, making it showerproof almost immediately.

Liquid Rubber is a cold, spray applied, elastomeric membrane system, that can be applied at a rate of up to 1,000m² per day. Due to its unique formulation, it can be applied to a variety of different surfaces, providing outstanding protection and highly anti-corrosive properties. Liquid Rubber eliminates the need for stripping old material, providing an ideal over-coating for most substrates including asbestos.

Liquid Rubber provides a fully bonded, seamless membrane.

Over 1,000% elasticity and 95% memory.

Completely non-toxic, eco-friendly and solvent & VOC free.

Suitable for:

Concrete and stone;
Corrugated asbestos;
Metal and plastisol;
Insulation boards;
Timber;
Felt and asphalt;
Single-ply membranes, including EPDM;
And Glass-Reinforced Plastic (GRP).

Specification

Form:	Liquid
Colour:	Brown
PH:	7-13
Specific Gravity:	1.00 (approx)
Vapour Pressure:	(mm Hg) 17 @ 20°C (water)
Vapour Density:	20°C (water) >1 (air=1)
Evaporation Rate:	<1 (nBuAcetate=1)
Boiling Point:	100°C (water)

Performance

Chemical resistance:	Resistant to atmospheric, chemical aerosols, or acid rain. Limited resistance to gasoline, diesel fuel and other petroleum products.
Biological resistance ASTM E154, ASTM D412:	Passed
Impact resistance CSB37-GP-56 @ 23°C (j):	>19
Water tightness after impact:	Passed (no leakage)
Specific gravity g/cm³:	Approx. 1.0
Tensile strength ASTM D412 (p.s.i):	>22
Adhesion to concrete strength ASTM C907: (amended to tensile adhesion (p.s.i))	>50
Law temperature mandrel @ -25°C	Passed
Crack bridging ASTM C836, un-aged -20°C	Passed (70 cycles)
Crack bridging ASTM C836, aged E20°C	Passed (10 cycles)
Puncture resistance CGSB 37-GP-56: (24 hours @ 29N @ -5°C)	Passed (no perforations)
Water vapour transmission ASTM E96, ng/Pa.sm²	>6.6
Water absorption CGSB37 – GP-56M, %inc	>2
Accelerated weathering ASTM G155: D412 tensile strength:	Passed
Hardness (durometer type 00)	78-80
Canadian Construction Materials Centre	Approved (13175)
Colour	Black

Rapid Roof

Rapid Curing Waterproofing System

RapidRoof is a seamless, waterproofing system that can be brush or roller applied as a cold liquid. It is a rapid curing, two coat membrane, that cures within 20 minutes per layer and can be trafficked within an hour - providing a fully bonded, tough surface, with over 200% elasticity.

RapidRoof Features:

RapidRoof provides a cured membrane, with a similar finish to Glass-Reinforced Plastic or EPDM but with greater flexibility and much faster application rates. RapidRoof is ideal for domestic projects or small industrial roofs and is available with an Anti-Skid finish for designated walkways balconies or as a standalone system, in grey as standard or black if available (please call for other colour requirements, subject to minimum 160m² order and 10 days delivery).

Fully bonded, seamless membrane system.

Range of colours, including matching to RAL on request.

Can be applied down to -30°C.

Suitable for:

Concrete;
Metal;
Timber;
Felt and asphalt;
Glass-Reinforced Plastic (GRP);
And Asbestos.

Specification

Colour:	Grey as standard (contact us for alternatives)
Pot life at 20°C:	15 Minutes
Tensile strength:	12N/mm
Elongation at break:	200%
Adhesion to Asphalt:	3N/mm
Temperature range during service:	-30°C to +60°C

Kingspan KS1000

KS1000 Trapezoidal Roof

AAC Waterproofing is an approved supplier and installer of Kingspan Insulated Panels. Kingspan are global leaders in the design, development and delivery of products and solutions for advanced building envelopes.

Trapezoidal Roof is a through-fix, trapezoidal-profiled insulated roof panel, which can be used for building applications with roof pitches of 4° or more after deflection.

Profile: Trapezoidal
Fixing detail: Through-fix
Metal type: Steel
Colours: Kingspan XL Forté (Symphony / Vivace / Crescendo) and Kingspan Spectrum (Solid / Metallic / Diamond)
Application: Pitched roofs of 4º or more after deflection
Lengths: KS1000 RW: From 1.8m to 29m, KS2000 RW: From 5m to 20m
Cover width: 1000mm and 2000mm
Environmental rating: Green Guide A+ rating as per the BRE Global "The Green Guide to Specification", Green Guide 2008 ratings (KS1000 RW only)
Fire rating: LPCB, FM approved* (KS1000 RW only)
Air Leakage: 3m³/hr/m² airtightness certainty at 50Pa
Product compatibility: Integrates with Kingspan Day-Lite Trapezoidal & Upstand, Kingspan Safety solutions and Kingspan Roof Mounted PV System
Seals: Optional factory-applied side and end lap weather seals

BENCHMARK

BENCHMARK brings together a selection of roof systems, which can be installed from rafter-to-rafter.

BENCHMARK Envirodek insulated roof deck that has been designed for green roof systems. BENCHMARK Roofliner and BENCHMARK Topspan insulated panels that are ideal for standing seam waterproofing systems and single-ply membranes.

All products are manufactured from the highest quality materials, using state of the art production equipment to rigorous quality control standards, approved to BS EN ISO 9001: 2008 (Quality management systems. Requirements).

Envirodek

BENCHMARK Envirodek

Insulated roof deck, designed for extensive and intensive green roof systems.

Roofliner

BENCHMARK Roofliner

Insulated roof panel with flat internal profile, ideal for standing seam & single-ply membranes.

Topspan

BENCHMARK Topspan

Long spanning roof deck, ideal for standing seam & single-ply membranes.

e-lastic Liquid Roofing

e-lastic Roof Systems have a strong focus on waterproofing systems and produce a wide range of different products, being one of the leading worldwide polyurethane waterproofing manufacturers for the construction industry, meeting today’s customers requirements and complying with the latest technologies and standards.

e-lastic polymer systems are used in new buildings and renovation projects in over 45 countries worldwide where customers have put their trust in their sophisticated waterproofing and coating systems. e-lastic Roof Systems are technologically superior roof waterproofing systems offering a no hassle application, full certification, and guaranteed long lasting results for your roof waterproofing needs. AAC Waterproofing is a cerified installer forthe e-lastic range of roofing and waterproofing compounds.

Whether flat or domed, every roof structure has a unique character - e-lastic offers liquid-applied Polyurethane roof coating systems for long-term protection of both simple and complex roof structures.

e-Lastic 250 Membrane & 400 Top Coat

Liquid applied Polyurethane Waterproofing

e-lastic 250 is a premium, one component permanent elastic, liquid-applied polyurethane coating that cures to a seamless, high elastic waterproofing membrane, and is used for long-lasting seamless waterproofing. Due to it’s high technological properties, this product solves challenging waterproofing applications where other methods fail, such as stagnating water, frost, humidity and long-term sun exposure.

Benefits

Simple application
One component
Resistant to water
Water vapour permeable
Full surface adherence
Forms a seamless membrane
Resistant to heat & frost
Resistant to detergents & oils
Crack bridging up to 2mm

e-lastic 250 waterproofing

e-lastic 400 is an elastic, colour UV stable, aliphatic polyurethane TOP COAT that is applied over e-lastic 250 waterproofing membrane, providing a resistant finish that can withstand pedestrian traffic conditions. e-lastic 400 results in a resistant, colour stable, glossy and easy to clean surface, prolonging the life span of the waterproofing membrane even under the most difficult conditions. The finish can be enhanced with textures and decorative effects where required.

Pease contact us for more details and to discuss your application requirements.