The question of what layer thickness should be used for polyurethane membranes is frequently raised in waterproofing applications. Proper thickness is crucial, especially for roofs, terraces, and foundation insulation. Inadequate thickness will inevitably lead to water penetration. However, an application that is too thick will also reduce economic efficiency.

Surface Condition Affects Thickness Selection

The smoothness of the application surface directly affects the layer thickness. Thicker applications may be required on rough and sloped surfaces. However, a lesser thickness may be sufficient on smooth concrete surfaces. Sempoly surface preparation solutions offers practical support on this subject.

Thickness Varies Depending on the Area of Use

Water pressure is higher on roofs and open areas. A layer thickness of 1.5 mm to 2 mm is generally preferred in these areas. However, in enclosed areas, this value can remain at 1 mm. Sempoly's application areas guide contains detailed information on this subject.

Number of Coat Applications Determines Thickness

Polyurethane membranes are typically applied in two or three coats, each coat providing a thickness of approximately 0.5 mm. However, three coats are preferred in areas with high humidity. Technical support requests You can contact experts directly for more information.

Climatic Conditions Also Affect

Polyurethane dries more quickly in hot climates. This can cause cracking between layers. Therefore, intermediate layers should be allowed to dry sufficiently. In such climates, the thickness can be slightly increased. Sempoly technical recommendations provides guidance on this matter.

Material Quality Determines Application Result

Not all polyurethane products are of the same quality. High-quality products offer the same protection with less thickness. However, with lower-quality products, even increasing the thickness isn't enough. Sempoly polyurethane products It has high standards. It eliminates the risks posed by low-quality products.

Practitioner Experience Increases Layer Effectiveness

Experienced installers precisely control the layer thickness. Furthermore, there are no gaps between layers, which increases the success of the waterproofing. However, inexperienced installers create inconsistent thicknesses on the surface. Professional application service getting it eliminates this problem.

The Measurement and Testing Process Should Not Be Skipped

After application, thickness must be measured. This process is easily accomplished with digital devices. However, manual inspection may also be sufficient in simple areas. The process should not be completed until thickness consistency is ensured. Sempoly engineering solutions conducts these tests professionally.