Reviews about corrugated board
Roofing corrugated board (profiled sheet, profiled sheet) is an inexpensive material for roofing, which is based on a galvanized steel profile. Outside it can have a coating of one of the types of polymeric materials. It is suitable for any roofs, including absolutely flat ones, it is distinguished by a large sheet size and ease of installation. To choose the most suitable professional flooring for the roof, study the reviews of those who used this material.
Varieties of profiled sheet
By application There are wall, roofing with a groove for water drainage (marking H), as well as universal (marking HC) corrugated board. For roofs, you can use the second and third types. Wall material (marking C) is more suitable for the manufacture of formwork and fences, as well as wall cladding.
By type of external protection profiled sheet is divided into galvanized (without coating), with a passivating coating of aluzinc, as well as galvanized with a polymer coating.
According to the profile of the corrugation the material is: wavy, trapezoidal or sinusoidal. The height of the profile can vary from 8 to 45 mm.
Parameter selection
Steel sheet thickness - the larger it is, the longer the roof will last. It can be recognized by marking - look at the last digits.
Corrugation Height - It is this parameter that determines the stiffness of the material. The higher the profile, the stronger the roof.
Type of coating - is determined by the operating conditions of the house. So, it is better for residents of the coast to take PVDF with UV protection, and in the middle lane polyester may be enough. The most short-lived is a simple zinc coating, but its durability is small.
Manufacturer and source of raw materials used - important indicators related to each other. Cheap Chinese metal does not use reputable brands.