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Contract-Closer

Cavity closer for doors and windows with cavity sizes up to 300m

Key Facts:
  • Closes cavity around window and door reveals
  • Prevents cold bridging
  • Insulated with extruded polystyrene (XPS)
  • For cavity widths from 50 to 300mm
  • Supplied in 2.4m lengths
  • Single flange available for check reveal details

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Description:

The ARC Contract-Closer is a purpose manufactured closer designed to minimise thermal bridging and tackle damp and mould around door and window openings. The plastic profile acts as an integral DPC and the product is suitable for both smaller and larger cavity sizes.

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View on NBS source
Key Stats
Key Stats LabelKey Stats Value
Length supplied 2.4m
Insulation Extruded Polystyrene (XPS)
Thermal conductivity 0.034W/mK
Mass Data available on request

Key Benefits

Suitable for standard details

Tackles damp & mould

Excellent thermal properties

Application:

ARC Contract-Closer closes the cavity around window and door openings. The rigid PVCu profile is insulated with extruded polystyrene insulation (XPS) offering excellent thermal properties. Contract-Closer helps prevent moisture, mould and staining from around windows and doors. The person installing the Contract-Closer should first familiarise themselves with the datasheet, ensuring the correct product is being fitted into the cavity.

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Get in touch today to discuss your requirements and learn more about our Contract-Closer. Our dedicated team is ready to collaborate with you from the initial consultation through to project completion, ensuring every detail is handled with expertise and care.
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Installation instructions

The ARC Contract-Closer is easily installed. Simply cut the jamb profile to the height of the window or door opening plus 75mm to allow the bottom edges to drop into the cavity below the sill. Once the jamb sections are installed, measure the required width for the sill section and cut a length to butt tightly to the jamb sections. If a longer length than 2.4m is required, see jointing method on the next page.

Option 1 (First Fix)

As above and build in the jamb sections as the brickwork progresses using ARC Brick Ties (1 every 225mm). Ties are not required on the sill section, simply hold in place with an adhesive or nail to block. ARC Brick Ties are sold separately.

Option 2 (Second Fix)

Cut sections to required size as above and simply push fit once the openings are formed. Sections can be secured by nailing to block or using a suitable adhesive.

FAQ’s

Do I have to install a separate DPC?

ARC Contract-Closer includes a plastic profile which acts as an integral DPC, eliminating the need to install a separate DPC.

Is the ARC Contract-Closer fire rated?

No, the ARC Contract-Closer is suitable for minimising cold bridging in applications where a fire rating is not required. If you require a fire rated cavity closer, please see the ARC Eco-Closer.

How do I join two lengths of the ARC Contract-Closer together?

Please follow the guidance on the product datasheet.

What is the ARC Contract-Closer insulated with?

The ARC Contract-Closer is insulated with extruded polystyrene (XPS).

Do you have further documentation for the ARC Contract-Closer?

For any information not found on the datasheet, please contact our technical team for support. Test reports, third party certification and the material data sheet are all available on request.

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For support or more information, contact a member of our expert team. We’re available to speak with Monday to Friday, 8am – 5pm. For technical enquiries including legacy product information please call 0113 252 9428 and select option 2.

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