The Gorter roof hatch construction is strong, stable and durable. As a result, the roof hatches are suitable for use on the highest buildings, even in regions with very extreme weather conditions.
All standard roof hatches are made of high quality aluminium, which is anodized for additional protection, and later also treated with an 80 micron powder coating layer. The Gorter ladders and stairs, such as the scissor stairs, ladder and fixed stairs, are also made from high grade corrosion resistant aluminium.
