These shutters work!

We supplied and installed aluminium roller shutters on this residential property in Spring of this year.

Here is the fantastic feedback from our customer 🙂

“Living in our house, this past two months, has been much more comfortable as a consequence.  I have lost count of the number of visitors who have commented that our reception rooms feel so much cooler than out of doors.  They cannot replicate the cooling of an air-conditioning system, but they make a big difference on a hot and sunny day.  For example, it has been blue sky and sunshine here all day today; at 1800 hours the outside air temperature was 31 degrees.  When we sat down to dinner at about 1830 hours, the temperature in our dining room was 25.6 degrees; that is 6 – 8 degrees cooler than it would have been without the roller shutters.

As you may recall, we have two large rooms with windows which face due East.  The sitting room has a volume of 2130 cu ft and 49 sq ft of glass in its windows.  The dining room has a volume of 1820 cu ft and 31 sq ft of glass. Consequently, I have been able to conduct a series of ‘rough-and-ready’ tests by comparing the temperatures in these two rooms when one has the blinds lowered and the other does not.  In each test, I have recorded the temperatures in these two rooms at 0800 hours and again at 1200 hours; the period over which there is full sun on both windows.  Sometimes, I have had the shutters lowered in the sitting room and raised in the dining room; other times, the situation has been reversed.  On a surprising number of days, clouds appeared unexpectedly and the experimental data was scrapped.  From the data gathered, I extracted the differences in temperature between the two rooms as an indication of the reduction in solar gain and plotted a scatter diagram of this against outside air temperature. 

This clearly demonstrates that the roller shutters are affective and deliver a reduction in solar gain of 4 – 6 degrees for an outside air temperature of 18 degrees; increasing to a reduction of 11 – 13 degrees for an outside air temperature of 38 degrees.

On the hottest day of the year our outside air temperature reached 40 degrees and the sun shone directly on the windows of our dining room and sitting room from about 0600 hours until about 1200 hours.  Thus, we would have expected the temperature in these two rooms – without the roller shutters – to be above 45 degrees and perhaps as high as 50 degrees.  We kept all the roller shutters closed from dawn onwards; the highest temperature reached in the dining room and sitting room was 27.0 degrees.   That says it all; these shutters work!”

Please click here for more information on our range of roller shutters.