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CAVITY
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Catalog excerpts

CAVITY - 1

CONSTRUCTION TYPE CAVITY WALLS AUGUST 2011 (REPLACES JULY 2006 ISSUE) Rockwool Cavity Protection from the outside world Rockwool Cavity full fill insulation is reliable, non-combustible and contains water repellent additives that prevent water from passing through to the inner leaf of new build external masonry cavity walls. The lightweight batts are produced from highly sustainable volcanic rock, helping to keep the planet healthy, occupants warm and energy bills low. The following NBS clauses include Rockwool Cavity: 130:10, 130:150

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CAVITY - 2

CONSTRUCTION TYPE CAVITY WALLS AUGUST 2011 (REPLACES JULY 2006 ISSUE) Rockwool Cavity Advantages 1. Consider the dimensional tolerances of the wall before designing the width of the cavity. An extra 5mm BBA certified for all exposure zones above the nominal batt thickness will normally be Acts as a cavity barrier Water repellent Outstanding thermal and fire insulation 2. Select porous bricks, which in periods of brief, heavy Superior fit against blockwork showers will absorb the moisture. A non-absorbent brick will channel water into the mortar joints. There are two British Standards of...

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CAVITY - 3

CONSTRUCTION TYPE CAVITY WALLS AUGUST 2011 (REPLACES JULY 2006 ISSUE) Rockwool Cavity Installing Rockwool Cavity It is the contractor’s responsibility to ensure that Rockwool Cavity is fitted in accordance with the recommendations of this data sheet and BBA Certificate. 1. The installation of the batts should commence below the damp proof course (preferably by at least 150mm) with no risk of capillary action to minimise cold bridging. The bottom row of ties should be at 450mm centres horizontally. If necessary, the width of the first course of batts can be cut to suit the height of the next...

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CAVITY - 4

CONSTRUCTION TYPE CAVITY WALLS AUGUST 2011 (REPLACES JULY 2006 ISSUE) Rockwool Cavity 6 It is essential that all of the joints between Rockwool 13 Cut the batts accurately to fit between wall ties, if not Cavity batts are clean and tightly butted. conventionally coursed. Ensure closely butted joints by 7 Raise the second leaf to the same level as the batts. 8 The as-built cavity width must not exceed the following cutting the batts 5mm larger in size than the wall-tie centres. 14 Avoid the build up of mortar on cavity trays. dimensions: 15 Where make-up pieces have to be used, ensure that...

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CAVITY - 5

CONSTRUCTION TYPE CAVITY WALLS AUGUST 2011 (REPLACES JULY 2006 ISSUE) Rockwool Cavity Building regulations The BBA is satisfied that Rockwool Cavity adheres to the For buildings from 12m – 25m in height the BBA following building regulations and standards: certificate imposes additional requirements. Please note: Rockwool Cavity may be used above the Approved Doc ‘B’ (E+W) Technical Booklet E (NI). the board of the building in question. BBA certified height, subject to an assessment waiver by Building Standards Section 2 (Scotland). A written approval form is to be completed and returned...

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CAVITY - 6

CONSTRUCTION TYPE CAVITY WALLS AUGUST 2011 (REPLACES JULY 2006 ISSUE) Rockwool Cavity 102mm facing brick outer skin, Rockwool Cavity full fill Internal block 100mm (see table below] Internal finishes: plaster or plasterboard on dabs Medium dtnse Pttfdafr Plast** PtWtob Pl*it« Pts/d* flaw Wart Pla&iw PUdet} Plast** Render on 100mm Medium dense block outer skin, Rockwool Cavity full fill Internal block 100mm (see table below] Internal finishes: plaster or plasterboard on dabs H-edium dmse- Ph.'dob PI*H<T Pfctofc PlAlW Plaster Ph/dat Piosier ■ Note: For cavities greater than 150mm use two...

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CAVITY - 7

CONSTRUCTION TYPE CAVITY WALLS AUGUST 2011 (REPLACES JULY 2006 ISSUE) Rockwool Cavity Specification clause The full-fill cavity wall insulation is to be The safety of Rockwool stone wool is confirmed by current UK and Republic of Ireland health & safety by Rockwool Limited, Pencoed, Bridgend, CF35 6NY, regulations and EU directive 97/69/EC: Rockwool fibres installed as work proceeds in accordance with the are not classified as a possible human carcinogen. recommendations of British Board of Agrément A Material Safety Data Sheet can be downloaded from www.rockwool.co.uk or requested from...

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CAVITY - 8

CONSTRUCTION TYPE CAVITY WALLS AUGUST 2011 (REPLACES JULY 2006 ISSUE) Rockwool Cavity More information For further details visit our website at www.rockwool.co.uk or phone Rockwool Technical Rockwool Limited reserves the right to alter or amend the specification of products without notice as our policy is one of constant improvement. The information contained in this data sheet is believed to be correct at Whilst Rockwool will endeavour to keep its publications up to date, readers will appreciate that between publications there may be pertinent changes in the law, or other developments...

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