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Manufacturer's Contact Details

Celotex Limited - www.celotex.com
Lady Lane Industrial Estate, Hadleigh, Ipswich, IP7 6BA

Celotex Technical Advisory Service. Tel: 0901 996 0100
Fax: 01473 820 889 - Email: technical@celotex.com

Page updated: Wednesday, February 1, 2012

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Celotex EL3000 Rigid PIR Insulation for built up flat roof applications

Celotex CW4000 from as little as £7.06m² - £5.09 per board

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Celotex EL3000 Range - Celotex EnergyLok ...

Purpose designed for use in built-up flat roofing applications, including hot-applied bituminous and mastic asphalt waterproofing systems and fully adhered single-ply membranes.

EL3000 provides a quick and easy method of achieving effective thermal insulation in flat roofing structures.

With coated glass tissue facings, EnergyLock EL3000 is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and a low global warming impact.

 

Benefits

Celotex EL3000 insulation boards ...
Are designed for use in a variety of flat roof system
Achieve U-values with minimum thickness
Are strong and durable
Are rot proof
Are dimensionally stable and unaffected by temperature cycles
Are easy to cut and shape
Require minimum number of fixings
Come in a range of thicknesses from 50 up to 200mm
Are available in two different lengths: 600mm and 2400mm
(EL3050, EL3080 and EL3110 available in 600mm length only)

 

Applications

The facers are suitable for bonding in the following flat roofing applications: Perforated facer
* Mastic asphalt
* Bituminous built-up roofing systems;

Unperforated facer
* Single-ply, fully adhered flat roof systems
* Self-adhesive membranes
* Liquid-applied membranes

 

Celotex Energy Lock Board Sizes and Values

Available in a standard board size of 600 x 1200mm, plus three larger board sizes (90mm, 100mm & 120mm) of 1200 x 2400mm with the following specifications ...

Product	R Value (mK/W)	Thermal Conductivity (W/mK)	U Value (W/m²K)	Weight (kg per m²)	Compressive strength (kPa)	Water vapour resistance (MNs/g)	Reaction to fire
EL3050	1.85	0.027	0.54	2.04	≥ 150	> 20	Euroclass F
EL3080	3.05	0.026	0.33	3	≥ 150	> 20	Euroclass F
EL3090	3.45	0.026	0.29	3.32	≥ 150	> 20	Euroclass F
EL3100	3.80	0.026	0.26	3.64	≥ 150	> 20	Euroclass F
EL3110	4.20	0.026	0.24	3.96	≥ 150	> 20	Euroclass F
EL3120	4.80	0.025	0.21	4.28	≥ 150	> 20	Euroclass F
EL3140	5.60	0.025	0.18	4.92	≥ 150	> 20	Euroclass F
EL3150	6.00	0.025	0.17	5.24	≥ 150	> 20	Euroclass F
EL3165	6.60	0.025	0.15	5.72	≥ 150	> 20	Euroclass F
EL3200	8.00	0.025	0.13	6.84	≥ 150	> 20	Euroclass F

Note: R-Value = Thermal Resistance; λ = Lambda Value / Thermal Conductivity; U-Value = Thermal Transmittance Co-efficient.

 

Technical Specification

Celotex Energy Lok EL3000 is a roof insulation board comprising a polyisocyanurate rigid foam insulation core with glass tissue facings on both sides.

EL3000 is ‘A’ rated in the 2008 Green Guide and CFC/HCFC free with zero ODP and low GWP. CE marking compliance to BS EN 13165:2001 and manufactured in accordance with quality management systems BS EN ISO 9001:2000 by Celotex Limited.

All products must be installed in accordance with instructions issued by Celotex Limited.

 

Where Celotex Energy-Loc EL3000 should be used

Use Celotex EL3000 high performance insulation in either mechanically fixed or fully adhered single-ply flat roofing applications. The unperforated facer is suitable for single-ply fully adhered roof systems, self adhesive membranes and liquid-applied membranes.

 

Built-up flat roofing applications

 

Hot-applied systems

The felt vapour control layer (VCL) in accordance with BS 6229 should be fully sealed at all laps prior to applying the insulation. At perimeters and abutments the VCL should be turned up around the insulation board edges and a flap of approximately 300mm should be bonded to the top surface of the insulation board.

The VCL should be fully bonded to concrete decks using hot bitumen adhesive, strip-bonded to the ribs of metal decks and partially bonded to timber decks. On timber decks the VCL may be nailed to the deck, but laps should be sealed with the appropriate adhesive.

When used on metal decks, Celotex EL3000 boards should be laid with the perforated facer uppermost and the long sides at right angles to the corrugations and bonded in a full mop of hot bitumen to the VCL. Torch-on technique is suitable only when there is no direct contact between the flame and the board. EL3000 is not suitable for use with the standard torch-on technique.

 

Mechanical fastening

The boards should be laid with all joints tightly butted together over the VCL and then mechanically secured through to the deck. When used on metal decks, these roof boards should be laid with the long sides at right angles to the corrugations. When mechanical fasteners are utilised, they should be selected to suit the type of deck used.

A plate washer with a surface area of not less than 45cm2 must be used with each fastener. Fasteners should be installed between 50mm-150mm from the edges and corners of th      e board.

Celotex recommends the use of BS 6399:2 Code of Practice for Wind Loads when determining the number of fixings required for insulation boards in flat roof applications.

 

Single-ply membrane flat roofing applications

Use Celotex EL3000 high performance insulation in either mechanically fixed or fully adhered single-ply flat roofing applications. The unperforated facer is suitable for single-ply fully adhered roof systems, self adhesive membranes and liquid-applied membranes.

Alternatively, use Celotex TA4000 high performance insulation in mechanically fixed, single-ply flat roofing systems where the higher compressive strength of the board gives improved resistance to site traffic during installation.

 

When designing a flat roof using Celotex EL3000 or TA4000 boards, three basic principles apply:

1. Design to a fall of 1:80, 1:60 or 1:40 as appropriate to the weathering system, type of deck and construction tolerances.

2. Have due regard for the use and design of the building and the need to ensure that the design will not allow a build up of moisture below the waterproofing membrane.

3. Provide adequate protection for both insulation and waterproofing if significant foot traffic is expected either during or after the completion of the roof.

Use Celotex EL3000 high performance insulation in built-up roofing applications, including hot-applied bituminous and mastic asphalt waterproofing systems. The perforated facer is suitable for bonding in mastic asphalt applications and hot bituminous built-up roofing systems.

When designing a flat roof using Celotex EL3000 boards, three basic principles apply:

1. Design to a fall of 1:80, 1:60 or 1:40 as appropriate to the weathering system, type of deck and construction tolerances.

2. Have due regard for the use and design of the building and the need to ensure that the design will not allow a build up of moisture below the waterproofing membrane.

3. Provide adequate protection for both insulation and waterproofing if significant foot traffic is expected either during or after the completion of the roof.

 

Installation Guidelines

Cold applied systems For single-ply membranes, the vapour control layer (VCL) should be either polythene or reinforced aluminium foil. The VCL should be loose-laid immediately prior to installation of the roof board and detailed at edges and abutments. The VCL should be sealed and taped to the top surface of the board.

 

Mechanical fastening

The boards should be laid, with all joints tightly butted together, over the VCL and then mechanically secured through to the deck. Celotex recommends the use of BS 6399:Part 2 when determining the number of fixings required to secure the insulation boards to the deck. When used on metal decks, these roof boards should be laid with the long sides at right angles to corrugations. When mechanical fasteners are utilised to secure the single ply membrane, they should be selected to the suit the type of deck used. A plate washer with a surface area of not less than 45cm² must be used with each fastener, with no less than four fasteners used per board. Fasteners should be installed between 50mm-150mm from the edges and corners of the board.

 

Installation of weathering systems

Different types of weathering systems require different installation instructions and guidelines. Advice on the installation of these weathering systems should be sought from the manufacturer or provider of the weathering system type.

 

Laying pattern

It is recommended that boards are laid with joints break-bonded.

 

U-Value - a definition

U-value (or thermal transmittance co-efficient) is a measure of how much heat will pass through one square metre of a structure when the temperatures on either side of the structure differ by 1 degree Celsius (expressed in W/m2K)

 

Contact manufacturer

Contact information at the top right of this page. Architects, Designers, Surveyors, et cetera should contact the manufacturers directly

Please note: Minimum order level of £500.00 (ex-VAT) and all deliveries come on 28 ton trucks (large curtain sided lorries).

The product information and specifications above are extracted from the manufacturer's published materials. Please download and fully review the manufacturer's information prior to purchase.