KORE Lock Pitched Roof Insulation

KORE Lock is an insulation system for use in warm and cold pitched roof applications. This high performance Expanded Polystyrene system is very simple and safe to install. The system provides a complete, tight fitting insulation envelope. The unique cut of the KORE Lock variable width panels allows the product to be compressed slightly for easy insertion between the rafters. Once in place, the KORE Lock panels return to its normal size and remain securely in place.

Thermal bridges are limited through the use of KORE Warmsark for warm pitched roof applications and KORE Thermal Boards for cold pitched roof applications.

DESIGNED FOR PITCHED ROOF APPLICATIONS

KORE Lock provides consistent, high thermal performance for both cold and warm pitched roof applications in an easy to install system.

KORE LOCK INSTALLS QUICKLY AND EASILY

KORE Lock can easily be compressed between the rafters for quick installation. The product can be cut on-site without any specialised tools required.

DESIGNED TO EXCEED BUILDING REGULATIONS

KORE Lock easily meets and exceeds Ireland’s Building Regulations, including nZEB. External insulation is the ideal solution for Passive House construction and other low energy building methods.

STOPS HEAT LOSS & THERMAL BRIDGING

KORE Lock stops heat loss through the roof while limiting thermal bridging through the use of KORE Warmsark and KORE Thermal Boards in both warm and cold roof applications.

WHY CHOOSE KORE LOCK?

KORE Lock is an Expanded Polystyrene insulation solution for warm and cold pitched roof applications. KORE Lock easily meets and exceeds Ireland’s Building Regulations, provides excellent thermal properties, is simple and safe to install, allows for variable width adjustment and easily facilitates necessary ventilation requirements.

KORE Lock is made from KORE’s high quality EPS – meaning it won’t degrade over time and will last the entire lifetime of the building. It’s unique design allows for easy installation between the rafters and panels can be cut on-site without the need for specialised tools or equipment.

 

MEET nZEB with KORE LOCK

KORE Lock has been designed to meet and exceed the U-value requirements of the proposed Part L 2018, and continues to meet the requirements of Part L 2011. The product will meet nZEB (Nearly Zero Energy Building) and other low energy building methods, like Passive House Certification.

Cold Roof Solution:

Material Thickness U-Value
KORE Lock EPS70 Silver + KORE Thermal Board EPS70 SIlver 100mm + 50mm 0.16W/m2K

 Warm Roof Solution:

Material Thickness U-Value
KORE Lock EPS70 Silver + KORE Thermal Board EPS70 Silver 170mm + 50mm 0.16W/m2K

For more information contact our technical team.

 

Request a quote

Submit your plans and receive a free, no obligation quotation for KORE Lock specific to your project requirements.

Request a quote

KORE Lock Technical Specifications

KORE Lock can easily satisfy the requirements of the Irish Building Regulations as outlined in Part L – Conservation of Fuel and Energy – Dwellings (2011) and Part L – Conservation of Fuel and Energy – Buildings other than Dwellings (2008). The following standards should be consulted regarding the construction of insulation at rafter level:

  • B.S. 5250:2002 Code of practice for control of condensation in buildings
  • BRE GBG37 Insulating roofs at rafter level: sarking insulation
  • BS 9250:2007 Code of practice for design of airtightness of ceilings in pitched roofs
  • BRE BR262 Thermal insulation: avoiding risks 2nd edition
  • IS ICP 2:2002 Code of practice for slating and tiling

For retrofit installations consult:

  • NSAI S.R. 54:2014 Code of practice for the energy efficient retrofit of dwellings

KORE Lock Pitched Roof Insulation – Insulation Between & Under Rafters (No Sarking Board)

KORE Lock EPS70 Silver KORE Thermal Board EPS70 Silver U-Value W/m2K
100 100 0.16
125 100 0.15
150 100 0.13
175 100 0.12
200 100 0.11

KORE Lock Pitched Roof Insulation – Insulation Between and Over Rafters (With Sarking Board)

KORE Lock EPS100 Silver KORE Warmsark EPS100 Silver U-Value W/m2K
100 100 0.16
125 100 0.14
150 100 0.13
175 100 0.12
200 100 0.11

KORE Lock Pitched Roof Insulation

The thermal conductivity of KORE Lock insulation products are in accordance with IS EN 13163:2012 and EN 12667 Thermal performance of building materials and products – determination of thermal resistance by means of guarded hot plate and heat flow meter method:

Material Thermal Conductivity
KORE Lock EPS70 White 0.037W/mK
KORE Lock EPS70 Silver 0.031W/mK
KORE Warmsark EPS100 White 0.036W/mK
KORE Warmsark EPS100 Silver 0.031W/mK
KORE Thermal Board EPS70 White 0.037W/mK
KORE Thermal Board EPS100 White 0.031W/mK


Thermal Resistance

Thermal resistance, known as the R-value, varies with the thickness of the insulation. To calculate the thermal resistance (m2.K/W) divide the thickness of the insulation by its thermal conductivity and round down the result to the nearest 0.05.

  KORE Lock EPS70 White KORE Lock EPS70 Silver
Insulation Thickness (mm) Thermal Resistance (m2.K/W)
100 2.70 3.23
125 3.38 4.03
150 4.05 4.84
175 4.73 5.65
200 5.41 6.45
250 6.76 8.06
275 7.43 8.87
300 8.11 9.68
  KORE Warmsark EPS100 White KORE Warmsark EPS100 Silver
Thickness Insulation (mm) Thermal Resistance (m2.K/W)
40 1.11 1.29
50 1.39 1.61
60 1.67 1.94
70 1.94 2.26
80 2.22 2.58
90 2.50 2.90
100 2.78 3.23
  KORE Thermal Board EPS70 White KORE Thermal Board EPS70 Silver
Thickness Insulation (mm) Thermal Resistance (m2.K/W)
25 0.68 0.81
38 1.03 1.23
50 1.35 1.61
88 2.38 2.84
KORE Lock Pitched Roof Insulation made from EPS

KORE Lock Downloads

The following is a sample of technical documents available for KORE Lock Insulation. For the complete technical library please join the KORE Resource Centre.

  • Download the KORE Lock Insulation Design Guide (Part L 2011)Download
  • Download the KORE Lock Insulation Design Guide (Part L 2019)Download
  • Download the KORE Lock Insulation (Part L 2019) BrochureDownload
  • Download the KORE Lock BIM Object FilesDownload

Request a quote or get in touch today

Request a free, no obligation quotation today by clicking on the Request a Quote button below. Remember to include your plans in PDF or AutoCAD format so we can provide an accurate price. For general questions, get in touch with us!

published:24 Oct 2018
,