Thermal insulation use increased exponentially in the construction industry since 2001, when a Dubai Municipality administrative resolution made it mandatory for all buildings – residential and commercial.
The preferred choices of insulation materials for roofs and walls are polystyrene in the form of boards and polyurethane which is spray applied, the latter having the advantages of having a lower thermal conductivity, as well as of being monolithic in form.
When insulation boards are used, leakage of heat occurs through the gaps between the boards, even when ship-lap edges are employed. The monolithic nature of spray applied insulation prevents such leakage of heat through the gaps and has the additional advantage of being a waterproof layer.
At times, the spray applied insulation is carried out on the soffit of slabs, where the heat is to be stopped from entering from open areas such as underground car parks to air-conditioned spaces above.
Soffit insulation is now more and more specified by consultants in view of the increased awareness of environmental concerns.
Owing to their large roof areas exposed to direct sunlight, the energy costs of cooling such structures are substantial. Thermal insulation on these structures by way of spray applied polyurethane cuts down cooling costs considerably, giving very significant and early returns on investment.
As the metal roofs of warehouses wear down at a faster rate than conventional concrete ones, especially around the fastening elements, water leakages are a common occurrence. Spray applied insulation protected by an ultraviolet resistant coating provides a waterproofing layer which affords a 10-year guarantee against leakage, thus gifting an additional advantage.
Al Intishar Insulations have been providing these services for over 23 years to a varied clientele, from the Ministry of Defence of the UAE to private and corporate owners of warehouses.
Al Intishar Insulation has also been involved in providing cryogenic insulation for the oil and gas industries, having carried out foam insulation work on LNG tanks for DUGAS and LPG tanks for Petrofac. We regularly carry out insulation and repair works in the insulation and cladding of insulated tanks in gas carrying vessels.
Industrial and Marine Applications
Thermal insulation is used across a large swathe of industrial applications. Most production facilities involve the use of hot or cold liquids and gases being stored, and/or transported over distances. The storage or transport devices, such as tanks and conduits, require thermal insulation in order to maintain the temperature differential of the fluids with respect to the ambient temperature. The application of thermal insulation in such cases is either by spraying or by using injection techniques.Injection techniques are employed when the insulation is required to be placed in an enclosed space, which is afforded by the presence of a second skin over the container or the vehicle.
Al Intishar Insulations has been actively involved in the marine industry, where foam insulation is used,in addition to as thermal insulation, as a protection for submerged elements. It is also used in refilling of marine buoys. We have also been using polyurethane foam injection for the protection of the joints in submarine oil pipes during the laying stage.
Thermal insulation finds uses in a host of other industries such as the logistics industry, where it is used to insulate refrigerated carrier vehicles. In hotels and restaurants with open hearths adjacent to dining areas, substantial cooling costs are saved by insulation.
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