Insulation Material

LRB Rockwool Mattress Heat Insulation are flexible rock fiber mattresses, stitched with wire mesh and manufactured from stable rock fibers bonded with a minimum quantity of thermosetting resin binder. ROCKWOOL LRB Mattresses are light weight, strong, resilient, easy to handle and cut to suit intricate shapes.

Facing Types

LRB Rockwool Mattresses are available with a galvanized steel or stainless steel hexagonal wire netting (mesh) on one or two sides.

Fire Safety Performance

LRB Rockwool Mattresses are non-combustible when tested in accordance with IS 3144, BS 476 (part 4), ISO 1182 and ASTM E136 and have the following fire safety rating achievements:

• Class I surface spread of flame in accordance to BS 476 (part 7)
• Class 0 in accordance to the BS 476 (part 6 & 7) and to British Building Regulations
• Class A1 in accordance with European norms
• Show loss in total mass less than 5% when tested in accordance to IS 3144
• Surface burning characteristics in accordance to ASTM E84 (a: Fire Spread Index: Less than 25, b: Smoke Developed Index: Less than 50)

• Resistance to vibration and jolting
• Durable / Long life.
• Vermin proof
• Non corrosive.

• Clean the surfaces wherein insulation to be applied.
• Apply a coat of cold setting adhesive CPRX compound or hot blown bitumen 85-25 grade and fix wooden battens or GI or Aluminium channels of height equal to the thickness of insulation to be used, 50mm for AHU and 100mm for D.G. Set rooms.
• Frame work to be spaced at 600 x 600mm C/C for the walls and ceiling.
• Twiga Fiberglass in specified density and thickness is placed in position within the framework and covered with white or black non woven Fiberglass Tissue (FGT).24G perforated aluminium sheet with approx. 20-25% perforations is placed in position over the insulation and FGT with help of self tapping screws onto the framework.
• Plain aluminium beading 25mm wide, 3mm thick is then placed at the joints of the perforated sheets and secured to the frame work by means of self tapping screws.
• Acoustic lining of walls shall be terminated 150mm above the finished floor to prevent damage to insulation due to accidental water logging in plant or AHU rooms.

• Fix 50 x 50 x 150mm wooden pegs at interval of 1m x 0.6m x 0.6m with the help of screws.
• Fix chicken wire mesh 12.5mm x 22 G of hexagonal construction over the pegs in order to create an air space of 50mm with the wall.
• Fabricate and fix 0.63mm thick ‘Z’ type GI channels at intervals of 1m x0.6m C/C.
• Fix Twiga Insul of required density and thickness over the pegs to the channel.
• Spread a layer of Black non woven Fiberglass Tissue.
• Fix aluminium or GI perforated sheet having at least 20-25% perforations with brass screws.
• Fix aluminium beading 25mm x 3mm thick over joints with self tapping screws for the walls and roof area.

Nitrile Rubber Insulation is a very versatile and flexible insulation. It is widely used the Industrial insulation, air-conditioning, plumbing and Hvac industries. It is a closed cell elastomeric insulation and is resistant to water vapour, oil and most acids.

Nitrile Flexible Elastomeric Rubber Insulation Rolls and Sheets are closed cell  foam structures with a non-porous composition that offers high thermal efficiency and protection from imminent condensation problems and helps as in sound absorption. Depending on the requirements of the market, this product can be coated with different types of foils and have a factory-applied self-adhesive backing. The installation time is reduced by more than 40% due to the ease in cutting as well as quick adhesion of the material.

Nitrile Rubber Rolls and Sheets come in handy where Nitrile Tubes cannot be used on pipes with big diameter. Other applications include ventilation ducts, tanks, reservoirs and engine rooms as it provides sound and thermal protection. Not only are they environmentally friendly, but they also don’t pose any harm to human health as it has zero Ozone Depletion Potential (ODP), Global Warming Potential (GWP) of less than five and a low Volatile Organic Compound (VOC) of less than 6 µg/m²/hr in 24 hours.  Nitrile Rubber Rolls and Sheets also comply with LEED requirements.

• Big diameter pipes (where tubes can’t be used)

• Ventilation ducts

• Tanks and reservoirs

• Engine rooms (as sound attenuates)

• Fittings (valves, flanges, bends)

In order to install Nitrile Rubber rolls & sheets in a professional manner, please consult the Installation Handbook.

Properties:

• Fire rated “CLASS O” as per BS 476 Parts 6 & 7
• Very low water vapor permeance (0 perms)
• High water vapor diffusion factor (> 17,000)
• Very low water absorption rate (0.06% by volume)
• High thermal efficiency (λ24 Degree C = 0.033 W/mK;  λ46 Degree C = 0.035 W/mK)
• Chemical resistance – resistant to most chemicals (sodium, silica, fluoride, chloride, etc.)