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Twiga Insul – Thermal Insulation

3.4 out of 5

Twiga lnsul is a lightweight, compressible insulation material, consisting of fine, long, inorganic glass fibers bonded together by a high temperature binder. The product is light gold in colour and its superior tensile strength, handleability and resilience offer significant advantages during transport and installation. These unique characteristics of glass wool, combined with its fire safe properties, make it especially suitable for a wide variety of thermal and acoustic insulation applications, ranging from duct and metal roof insulation for  applications in solar collectors and generator acoustic enclosures.

Twiga lnsul is available in rolls, slabs and boards – in various densities and thicknesses and with a wide range of factory applied facings.

The product is recommended for use in both hot and cold applications ranging in temperature from minus 195° to plus 450°C. Factory applied facings include reinforced aluminium foil, fiberglass tissue, black glass tissue and a wide range of imported premium facings, which are widely used in metal building applications.


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Twiga Insul for Thermal and Acoustic Insulation

Thermal Insulation Performance

Cooling costs in a building insulated throughout with glass wool can be reduced significantly. The use of glass wool for the thermal insulation of external walls and ceilings has been shown to reduce energy consumption by 20% to 30%.

Thermal Conductivity in W/MK

Insulation thickness (mm) Range of R-value (Thickness/Conductivity)
* in SI and PI unit [ R-SI in m2.K/W and R-PI in sq.ft.F.Hr./Btu]
Roof U-value range in SI and PI unit [U-SI in W/m2.K and U-PI in Btu/sq.ft.F.Hr] Insulation efficiency in percentage [{U(uninsulated)-U(insulated)}/U(uninsulated) x 100]
50 1.16 <= R-SI <= 1.67
6.61 <= R-PI <= 9.47
0.73 => U-SI => 0.54
0.13 =>U-PI =>0.09
85 – 89%
75 1.74 <= R-SI <= 2.50
9.91 <= R-PI <= 14.20
0.51 => U-SI => 0.37
0.09 =>U-PI =>0.07
90 – 93%
100 2.33 <= R-SI <= 3.33
13.21 <= R-PI <= 18.94
0.4 => U-SI => 0.28
0.07 =>U-PI =>0.05
92 – 94%

*Please consult our executives for customized solutions specific to your project requirement.

Acoustic Performance

Twiga Glass Wool with its outstanding acoustic performance has excellent acoustic absorption characteristics. Whether it is sound insulation for industry, commercial premises, public buildings, or domestic applications, Twiga Insul outperforms others.

Acoustic Insulation values of:

Thickness (mm) Noise Reduction Coefficient Sound Absorption Class Test Standard
25      0.71 – 0.89     Class B    ASTM C 423 / ISO 354
50      0.75 – 0.95     Class B – Class A
100     >0.85     Class B – Class A


  • Pre-engineered metal buildings – factory, warehouse, supermarket, showrooms, aircraft hangar etc.
  • Public and residential buildings – wall and roof insulation, facade, drywall and acoustic panels.
  • Heating, ventilation and air conditioning – duct-thermal, acoustic and mechanical rooms.
  • Textile mills – roofing and humidification duct.
  • Transport – trains, metro coaches, railway coaches, AC buses.
  • Automotive insulation (molded) parts.
  • Marine – naval shipbuilding.
  • Cold storage.
  • Solar – water heater and tank insulation.
  • Power plants – chimney, ESP, water pipes and vessels.
  • Cryogenic application – LNG tanks.
  • Other various appliances and laboratory equipment.


  • High thermal and acoustic insulation values at much lower weight.
  • Non-combustible and fire safe insulation to meet fire and life safety requirement of National Building Code 2016.
  • Easy to carry, lay and install – fast, hassle-free application.
  • Extra strong facings for better durability and ease of installation.
  • Long length for minimum joints and sealing – less man-hour.
  • Silver, white and black colored finish for different site requirements.
  • Apply and forget – maintenance free.
  • Safe from acidic vapors with strong polypropylene facing.
  • Free from metal shots and corrosive Chlorides i.e. better life of roof sheets.
  • Efficient compressed packaging for better storage space management and less freight cost.
  • Available in standard yellow material (Twiga Insul) and soft-feel green material (Twiga Eco Insul).

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