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CI/SfB July 2013

A guide to spray foam insulation

Yn6 (M2)

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Introduction

Where to use?

Econ Polyurethane Systems is a leading distributor of polyurethane spray in place and injection systems from BASF Polyurethanes. We are dedicated to providing high performance cost effective materials in line with our customer’s needs. Our partnership with the industries longest established and most well respected manufacturer puts us at the forefront of the spray foam industry sector.

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OPEN CELL or CLOSED CELL..? what type of spray foam to use

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Internal insulation of agricultural building: closed cell

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Insulation on lightweight industrial flat roof: closed cell

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External roof insulation: closed cell

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Insulation of basement soffit/ceiling: closed cell

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Internal insulation in timber frame: open or closed cell

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External insulation between masonry walls: closed cell injection system

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Insulation on loft/attic floor: open or closed cell

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Insulation on solid flat roof: closed cell

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Internal insulation between rafters: open or closed cell

10 Insulation with underfloor heating: closed cell 11 Internal insulation onto masonry wall: closed cell 3

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Key benefits of using spray foam systems  Energy efficiency Spray foam is a speedy, efficient insulation solution coupled with significantly lower U-values than other conventional insulation materials. Spray foam has a thermal conductivity as low as 0.025W/mK.

 Air tightness The continuous spray leaves a minimal amount of surface area without insulation resulting in an airtight building envelope of low permeability, and without the need for supplementary material. The foam is fast to apply and quick to cure. Spray foam therefore offers the specifier an all in one solution to meet and exceed latest Building Regulations requirements.

 Sustainability By virtually eliminating air leakage, spray foam helps control the movement of vapour and moisture throughout the building, reducing the risk of condensation and mould. Sustainable over the life span of the building, spray foam can even prolong the buildings life as it protects against premature deterioration of building materials.

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 Design freedom Spray foam also provides the specifier with complete design freedom as the spray foam adapts to the shape of the substrate providing an ideal solution for insulating difficult areas such as profiled and curved roofs. Technical support is available via our in-house team and external retained consultants.

 Occupier comfort For building occupiers, spray foam makes a significant contribution to a comfortable indoor climate by creating a draft free environment that prevents the infiltration of pollutants, toxins and allergens.

 Reliability BASF spray foam is only installed by BASF-trained professionals. A nationwide network of Approved Contractors is available throughout the UK and Ireland.

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Foam Masters Approved Contractors

Every high performing system requires high performance installation to guarantee satisfaction. In order to ensure the highest standard application, BASF spray foam systems can only be installed by fully trained and qualified spray Foam Masters. A Foam Master is part of a well established and growing consortium of independent local spray foam contractors across Ireland and the UK.

FOAM MASTERS Before receiving the Foam master accolade contractors must attend a rigorous training programme located at the BASF Training Centre in Alfreton. The training programme includes application techniques, building regulations, health and safety requirements and much more. Graduating from the Foam Master academy takes time and commitment. Upon completion each contractor is issued with a photo identity card and entry to part of the Foam Master database. Why choose a Foam Master? Foam Masters have become highly skilled installers of the BASF spray foam product range, guaranteeing the client that the project will be completed to the highest quality and with the best product available. Each Foam Master is a local independent contractor with a local reputation to maintain and as part of the Foam Master network, offers consistent level of service and quality throughout Ireland and the UK.

What they offer • A comprehensive product range including cavity wall injection, closed and open cell foam manufactured by the leading supplier of Polyurethane solutions for systems. • Identify your needs and offer the most appropriate product to suit your application. • Technical advice, U-value calculations and condensation risk analysis supported by both Econ and BASF. • You benefit from the financial stability and quality assurance of the highly trained Foam Master professional whose work and business profile must meet the stringent quality standards of a renowned global corporation.

BASF Approved Spray Foam Contractor

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®

WALLTITE CL100 Closed cell insulation for internal roofs, floors and walls providing a seamless airtight solution, which is spray applied to offer superior all round performance compared to conventional insulations. WALLTITE CL100 features and benefits: • Low thermal conductivity • Adds structural strength prolonging the life of the building • Seamless airtight insulation system with no joints or gaps • Applied by BASF Foam Masters • Fast & easy applied with no waste, minimum fuss and maximum effect

• No VOC’s, CFC’s, formaldehyde and has no harmful side effect • Will not settle of sag and will last lifetime of building • BASF polyurethane is certified to BS EN ISO 9001, ISO/TS 16949:2002 & BS EN ISO 14001. BBA & NSAI independent certified • Class 1 fire rating.

WALLTITE CL100 is ideal for many applications:

New pitched roof

Existing pitched roof

Room in a roof

New timber frame wall

Masonry cavity wall

External soffit

External roof

Refurbished masonry wall (timber frame)

Refurbished masonry wall (steel stud)

Concrete slab ground floor

Beam and block floor

Suspended timber floor

Technical data Density (kg/m³)

40-45

Typical U-values*

Thermal conductivity (W/mK)

Water vapour diffusion factor

0.025

µ 61.12

Air leakage @50 pascals (m3.h.m2)

Spread of flame

0.0033

Class 1

Foam thickness (mm)

U-value (W/m²K)

50

0.55

75

0.39

100

0.30

150

0.21

200

0.16

* Sloping roof with roof covering, battens, breathable membrane, timber rafters, plasterboard)

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®

WALLTITE CV100 For new and existing cavities providing a structural connection between the masonry walls, offering superior thermal performance, resistance to flood water and driving rain while outperforming all other forms of cavity fill. WALLTITE CV100 features and benefits: • Quickly applied with no waste, minimum fuss and maximum effect • For new or refurbished wall construction • Can be used to restore the structural stability of the masonry inner and outer walls. • Superior thermal performance • Closed cell foam completely resistance to flood water and driving rain

• Offers completely airtight wall system, with zero air leakage through cavity • Outperforms all other forms of cavity wall fill • Installed to BS7456: 1991, Code of Practice and independent certification • BASF polyurethane is certified to BS EN ISO 9001, ISO/TS 16949:2002 & BS EN ISO 14001 • BBA independently certified

WALLTITE CV100 applications:

Technical data

Typical U-values*

Density Thermal Water vapour Air leakage Compressive Spread (kg/m³) conductivity diffusion @50 pascals strength of (W/mK) factor (m3.h.m2) N/332 flame

Foam thickness (mm) 75

0.27

40-45

100

0.24

120

0.21

150

0.18

0.025

µ 61.12

0.0033

0.259

Class 1

U-value (W/m²K)

* Masonry wall with 100mm outer block and 100mm inner block

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®

ENERTITE A low density open cell spray applied polyurethane foam insulation for internal roofs and walls. Applied as a liquid, this water blown system expands to over 100x its original size completely filling all voids helping to provide an airtight barrier. ENERTITE features and benefits: • Quickly applied with no waste, minimum fuss and maximum effect • Improve energy efficiency and provide barrier against unwanted sounds • Cost effective option for superior airtight & thermal insulation • No VOCs, CFCs, formaldehyde and has no harmful side effects

• Rapidly expands to 100 times filling voids and sealing your building • Will not settle of sag and will last lifetime of building

ENERTITE is ideal for many applications:

New pitched roof

Room in a roof

New timber frame wall

Refurbished masonry wall (timber frame)

Technical data Density (kg/m³)

8-9

Thermal conductivity (W/mK)

Water vapour diffusion factor

Air leakage @50 pascals (m3.h.m2)

0.037

µ 3.2

0.028

Typical U-values (W/m2K) Ceiling structure

ENERTITE insulation thickness (mm) Without insulation 150 200 225

255

Sloping roof with roof covering, battens, breathable membrane, timber rafters & plasterboards

3.85

0.27

0.20

0.18

0.16

Pitched roof with insulation along ceiling between and over 100mm timber ceiling joists

2.43

0.25

0.19

0.17

0.15

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Suspended timber floor

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®

ELASTOSPRAY Closed cell insulation for internal roofs and walls of agricultural and industrial buildings, providing a structural, durable and sealed insulation solution which has a positive effect on the life and value of the building fabric. ELASTOSPRAY features and benefits: • Prevents condensation • Low thermal conductivity • Adds structural strength prolonging the life of the building • Seamless airtight insulation system with no joints or gaps • Class 1 fire rating

• Fast and easily applied with no waste, minimum fuss and maximum effect • No VOCs, CFCs, formaldehyde and has no harmful side effect • BASF Polyurethanes is certified to BS EN ISO 9001, ISO/TS 16949: 2002 and BS EN ISO 14001.

Technical data

Typical U-values

Density (kg/m³)

40-45

Thermal conductivity (W/mK)

Water vapour diffusion factor

0.025

µ 61.12

Air leakage @50 pascals (m3.h.m2)

Spread of flame

0.0033

Class 1

Foam thickness (mm)

U-value (W/m²K)

50

0.55

75

0.39

100

0.30

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Econ Support Service

Design and technical service

Independent third party product certification

Econ provides all Foam Masters contractors, industry professionals and clients with invaluable design, consultation and technical support relating to our complete range of BASF spray foam products. At Econ we pride ourselves on our wealth of experience and expertise in this specialist market. Our professional, efficient and dedicated team are on hand to assist you in choosing the correct product for your specific application.

As part of our continued commitment to quality our products are third party independently tested to the required standards and certified to comply with current building regulations in Ireland and the UK.

CPDs

Construction details

CPD or continuous professional development is the systematic maintenance, improvement and broadening of knowledge and skill required for the execution of professional and technical duties throughout an individuals working life. Econ and BASF are registered RIAI and RIBA CPD seminar providers.

A comprehensive range of CAD drawings for typical insulation details, along with the associated Thermal Modelling Analysis are available on request.

Minimum 50mm Ventilation Gap Note: Ridge Ventilators Will Be Required

BASF Walltite Closed Cell Foam Sprayed Between Rafters to Specified Depth for Required U-Value

Counterbatten Breathable LR Underlay Rafter Proprietary Ventilator at Eaves

Vapour Control Layer Plasterboard with Skim Plaster Finish Nominal 25mm Service Cavity Formed by Battens

Soffit Ventilation Must be Kept Clear

Concrete Block

Mineral Wool Cavity Closer

Partial Fill Cavity Insulation

Render Finish

NEW BUILD PITCHED ROOF WITH BREATHABLE LR UNDERLAY (INSULATION ON SLOPE BETWEEN RAFTERS) TGD L 2011

These drawings are the exclusive property of . Any reproduction without prior written authority is strictly prohibited. Do not scale drawings. Copyright 2012 %

Issued For:

Approval

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Condensation risk analysis and U-value calculations Econ and the team at BASF are happy to assist with any specific queries regarding thermal performance including U-value calculations and condensation risk analysis. We have a range of advance tools and support services used to calculate the risk of interstitial or surface condensation in a building taking into account each component within the assembly.

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New Build Pitched Roof With LR Underlay (Insulation on Slope Between Rafters) - TGD L 2011 1 2

NTS

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BASF Walltite Closed Cell Foam Standard Details

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Frequently Asked Questions

How are polyurethane foams applied? Our polyurethane systems consist of two component spray applied foams and are installed by trained applicators with specialist spray foam equipment. What are the differences between low density opencell and higher density closed cell foams? Open cell foam is applied as a liquid and typically expands to 100 times its original volume to form a semi rigid flexible non structural insulation with a thermal conductivity of 0.037W/mK. Closed cell foam is applied also as a liquid and typically expands 35 to 50 times it original volume to form a rigid structural insulation with a thermal conductivity of 0.025W/mK. BASF closed cell foam has a closed cell content of greater than 90%. Is foam airtight? Yes, both open cell and closed cell spray and injection polyurethane foam have been independently tested for airtightness and performed exceptionally well as air barriers with figures as low as 0.028m³/hr.m². Is spray foam insulation breathable? Yes both open and closed cell foams are vapour permeable, allowing vapour diffuse through the system. Open cell is more vapour open than closed cell with a µ factor of 3.2. Unlike open cell foam, closed cell foam is water tight and impervious to water penetration. Liquid water has much larger structure and is unable to pass into or through a closed cell foam barrier. Is spray foam fire rated? Our BASF closed cell foams are Class 1 surface spread of flame tested to BS476: Part 7. Our open cell product achieved a Class E under the Euroclass single flame fire classification system.

Can spray foam be applied to non breathable roofing felt? No. Spray foam should not be applied to non-breathable roofing felt regardless of type in line with building regulations requirements and good building practice. Such membranes behave as vapour barriers. A vapour permeable slide should be used to maintain a ventilation void between the insulation layer and roof membrane. Can spray foam be applied to breathable roofing felt? In the case of open cell foam applications spray insulation can be applied directly to breathable roof membranes where a counter-batten has been installed between the roof tile or slate batten and roofing membrane. In certain circumstances closed cell foam may be applied directly to breathable roofing felts without the need for a counter batten. Please consult our technical department for information relating to your specific construction. What is the insulation u-value of your system? The U-value is calculated by adding the thermal resistance of each material within an element to find the total heat resistance and then calculating the reciprocal of this value to establish the total heat loss associated with the elements (wall, roof etc.) represented as a U-value. Will sealing my building with spray foam insulation affect the air quality of my building? Spray foam insulation will help to provide and air tight barrier to the envelope of your building thereby eliminating unwanted air penetration and heat loss. However the quality of the air inside your building should be considered separately and will depend on controlling the level of ventilation by using mechanical or natural passive ventilation systems.

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WALLTITE® ENERTITE® ELASTOSPRAY® For more information, samples or if you would like to discuss a particular project please contact us at the details below:

Econ Polyurethane Systems Unit A6, Block 540, Grants Crescent Greenogue Business Park Rathcoole Co. Dublin, Ireland Tel +353 (0)1 4019729 Fax + 353 (0)1 4019739 E-Mail [email protected]

www.walltite.basf.ie www.walltite.basf.co.uk www.econps.ie