Reasons to use a RAINSCREEN solution

Fire safety – it should be at the forefront of not only the building owner’s mind, but everyone involved in the building process, from designers to specifiers, through to contractors. It is of the upmost importance that corners are not cut, and non-combustible products are the first choice for new constructions and refurbishments.

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Stone wool insulation can withstand temperatures of up to 1000°C and has achieved the highest possible Euroclass rating: A1 non-combustible. With minimal organic content, it will not produce any significant toxic smoke.


Acoustic considerations

While fire safety is of utmost importance, close attention should also be paid to acoustics. Noise pollution is a major problem for thousands of people living in UK towns and cities. Specifiers from modern buildings are calling out for acoustic performance guidance for products that make up the building envelope to ensure they are providing a solution that fits both safety and acoustic requirements.

A lack of acoustic test data on the market makes this difficult, and often leads to over engineered systems which incorporate additional mass layers. In meeting the need for data, ROCKWOOL carried out a number of acoustic tests and produced a technical document to show information on the sound reduction performances that can be achieved by using stone wool insulation in rain screen systems.

ROCKWOOL’s Rainscreen Acoustic Reference Guide provides a great advantage for specifiers who are looking to provide the best finish possible for their customers. Unique to the sector, the guide looks at the rising impact of noise in urban environments and explains how rainscreen cladding with sound insulation can minimise this problem. It gives reliable acoustic test data enabling the right rainscreen cladding solution to be selected with complete confidence that it will perform in its selected application.

The test results show that when used within a rainscreen cladding system on a typical SFS substrate, RAINSCREEN DUO SLAB achieved up to Rw 62 dB. The tests also demonstrated that reducing two layers of plasterboard to one layer resulted in no drop in Rw. This is reassuring for building occupants, as it means that as long as ROCKWOOL is specified, they can benefit from a comfortable and healthy living and working space.

ROCKWOOL has included this new data into its acoustic calculator, which gives contractors, specifiers, and distributors a simple and effective way of working out the acoustic performance of insulation installed on walls, floors and roofs.