NBS Clauses

Select the appropriate NBS Clause from the list below. Click on the “Download Icon” to view, print or download the document.

Adaptable NBS clauses for specific site applications are available from the RIW Technical Department on request.

• Cavity Drain
• Cementseal
• Cementflex
• CementfillFC
• CementfillHB
• Cementjoint

• Double Drain
• Flexiseal
• Heviseal
• LAC
• Plaster Drain
• Sheetseal 226

• Sheetseal 9000
• Sheetseal GR
• Structureseal
• Tilesafe
• Toughseal
• Waterstop

Cavity Drain

J40 Flexible Sheet Tanking / Damp Proofing
CAV / 01	J40 / 290	20mm High density polyethylene/ polypropylene studded damp proof membrane
CAV / 02	J40 / 290	5mm High density polyethylene/ polypropylene studded damp proof membrane
CAV / 02	J40 / 290	Plaster Drain High density polyethylene/ polypropylene studded damp proof membrane

Cementseal

J10 Cementitious Mortar Tanking / Damp Proofing
CSL / 01	J10 / 110	Polymer modified cementitious slurry coating

Cementflex

J10/110A Cementitious modified polymer rich coating
CFX / 01	J10 / 110A	Cementitious modified polymer rich coating
CFX / 02	C42/310A	Cementitious modified polymer rich coating

Cementfill FC

C42/310 Cementitious Repair Mortar
CFC / 01	C42/310	Cementitious repair mortar
CFC / 02	M10/140	Proprietary polymer modified levelling screeds

Double Drain

J40 Flexible Sheet Tanking / Damp Proofing
DOD / 01	J40 / 295	Geocomposite drainage / venting membrane

Flexiseal

30 Liquid Applied Tanking / Damp Proof Membranes
FSL / 01	J30 / 110	Cold applied tanking
FSL / 02	J30 / 130	Cold applied damp proofing
FSL / 03	J30 / 261	Junctions with Structureseal

Heviseal

J30 Liquid Applied Tanking / Damp Proof Membranes
HSL / 01	J30 / 110	Cold applied tanking
HSL / 02	J30 / 130	Cold applied damp proofing

LAC

J30 Liquid Applied Tanking / Damp Proof Membranes
LAC / 01	J30 / 110	Cold applied tanking
LAC / 02	J30 / 130	Cold applied damp proofing

Plaster Drain

J40 Liquid Applied Tanking / Damp Proof Membranes
CAV / 03	J40 / 290	High density polyethylene/ polypropylene studded damp proof membrane

Sheetseal 226

J40 Flexible Sheet Tanking / Damp Proofing
SSL / 01	J40 / 190A	Self-adhesive bitumen damp proof membrane / tanking

Sheetseal 9000

F30 Accessories / Sundry Items for Brick / Block / Stone Walling
DPC / 01	F30 / 330	Damp proof course
DPC / 02	F30 / 345	Site formed flexible sheet cavity trays
DPC / 03	F30 / 370	Preformed cavity trays
DPC / 04	F30 / 380	Preformed dpc / cavity tray junction cloaks / stop ends located by description
DPC / 05	F30 / 385	Preformed dpc / cavity tray junction cloaks / stop ends located by drawing references

Sheetseal GR

J40 Flexible Sheet Tanking / Damp Proofing
GAS / 01	J40 / 180	Self-adhesive bitumen gas retardant / damp proof membrane

Structureseal

J40 Flexible Sheet Tanking / Damp Proofing
STS / 01	J40 / 285	Loose laid bentonite damp proof membrane / tanking

Tilesafe

M40 Stone / Concrete / Quarry / Ceramic Tiling / Mosaic
TIF / 01	M40 / 470A	Intermediate substrate

Toughseal

J30 Liquid Applied Tanking / Damp Proof Membranes
TSL / 01	J30 / 130	Cold applied damp proofing

Waterstop

E40 Designed Joints in Insitu Concrete
STS / 02	E40 / 310A	Flexible waterstops