Laydex - 2019 Catalogue

GROUNDWORK

Radon Tapes

To comply with the building regulations ‘BR211 guidance on protective measures for new dwellings’, all laps should be sealed with a butyl radon jointing tape. The butyl tape can also be used for adhering all polythene membranes to each other. Quote Description Size Price 701187 Butyl Tape 10mm x 27m POA

DPMs

BBA and PIFA approved Damp Proof Membranes for use below solid concrete floors in compliance with the relevant Building Control regulations. Manufactured from low density polyethylene (LDPE), they consist of a comprehensive range of 250mu (1000 gauge) 300mu (1200 gauge) and 500mu (2000 gauge) sizes. The products can withstand rough site handling and have a high puncture resistance.

Quote Description Price 701156 250mu 1000 Gauge BBA 4 x 25m POA 701153 300mu 1200 Gauge BBA 4 x 25m POA 701152 500mu 2000 Gauge BBA 4 x 12.5m POA 701160 300mu 1200 Gauge PIFA 4 x 25m POA Size

Top Hat All penetration for services and drains should be sealed using preformed top hats, sealed to the radon barrier with butyl radon tape. Airtight seals should be formed around all service entry points. Top Hat Units are available for sealing around pipe entries. The base of the pre-formed unit should be sealed using radon butyl tape.Where there are pile caps or stanchions, advice should be sought.

Quote

Description

Price

701173 Radon Sump

POA POA

701181 Top Hat

Radon Sumps Where a ground-supported floor is to be constructed and

full radon protection measures are required, a radon sump should be provided. For a typical house a single sump will probably be sufficient. If the dwelling is of modest size and of regular shape, an edge location may be acceptable. Otherwise the sump should be positioned centrally under the house and constructed to ensure that its pipe entry is not blocked when the fill is placed. The Radon Sump is a prefabricated sump of plastic construction and may be used as an alternative to brick construction. The Radon Sump is a rotationally moulded plastic radon sump unit designed to act as a collection point for radon gas prior to it being ventilated away when connected to an extract fan.

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