Roof cap sheet MIDA Top PV200S5, SBS bitumen — 5 m² at 5.2 mm

The exposed layer of a bituminous roof meets sunlight, precipitation and temperature changes every day. Cap sheets are intended for this role. They combine waterproofing with a surface finish, allowing a new roof to be completed or an existing covering to be renewed together with its essential details.

The mineral finish protects the bitumen compound from direct sunlight and gives the covering its characteristic texture. This enables a cap sheet to serve as a finished, exposed roof layer within a system intended for that use. The entire roof field does not require a separate metal covering. The granule colour affects the appearance of roofs seen from upper floors or neighbouring buildings. This is especially relevant to garages and extensions whose roofs form part of the everyday view.

Polymer-modified versions retain flexibility within the product’s specified range. This helps fit strips around details and accommodate the roof system’s movement during use. Reinforcement provides mechanical properties, while the bitumen compound forms the sealing layer. Combining these functions allows coverings to be made over extensive areas and around numerous changes of direction. A suitably chosen material enables the installer to follow the shape of the roof with waterproofing, without multiplying rigid finishing components.

A cap sheet allows the horizontal field to be connected to vertical roof sections. Strips turned up according to the system protect areas at walls, chimneys and equipment bases. Similar material across the main field and details helps maintain a coherent solution. The width and route of each section can be fitted carefully. The roof finish then covers the entire network of connections, rather than only the largest, easiest area. This is useful for complex parapets and roofs with many service penetrations. Flexible strips maintain a consistent finish across these different sections.

Products intended for refurbishment allow a roof covering to be renewed after assessment of the existing layers and preparation of the substrate. This is practical for garages, workshops and commercial buildings. Some membranes are approved for single-layer systems; others serve as the top layer of a build-up. The permitted use depends on the specific product. In either case, flexible strips can adapt the covering to the existing outline. A new surface can combine improved watertightness with a more orderly appearance. A uniform texture can therefore be achieved even over a structure built in several stages with varying geometry.

SteelProfil offers cap sheets and refurbishment materials at favourable prices. Our building-material range includes frequent promotions, stock items and first- and second-grade products. Match the final layer to your roof and combine protection against water with a finished surface.