![A small increase in rooflight area can make a big impact on the time that desired light levels are achieved. - National Association of Rooflight Manufacturers A small increase in rooflight area can make a big impact on the time that desired light levels are achieved. - National Association of Rooflight Manufacturers](https://www.narm.org.uk/new/wp-content/uploads/2016/05/NARM_GRAPHS_FINALS_1204-8-2844x1422.jpg)
A small increase in rooflight area can make a big impact on the time that desired light levels are achieved. - National Association of Rooflight Manufacturers
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