SS-50T special size single-leaf roof hatches can be built to virtually any size to accommodate very small openings for personnel access through to larger units for stairways and equipment access.
They are manufactured to provide a high degree of thermal efficiency and are supplied with 50mm of polyisocyanurate insulation to both the upstand and cover.
In addition, the cover is fitted with a closed-cell EPDM gasket designed to reduce the air leakage though the closed cover, ensuring that the air leakage requirements of Building Regulations Part L are achieved.
A counterbalancing spring mechanism ensures that all hatches are easily operable by one person to assist designers and employees in meeting the requirements of the Manual Handling Regulations.
The acoustic, thermal and air leakage performance of these hatches, as well as their resistance to wind and snow load and to impact, has been independently verified by tests at Taylor Woodrow's technology centre in Bedfordshire.