Laying underlayment foil

Installing underlayment - reliable protection for your roof

Properly installing underlayment is one of the most important stages in building or repairing a roof. This underlayment provides an additional protective layer under the tiles, which protects the home structure from moisture, snow and dust. When installed properly, underlayment extends the life of the roof, reduces the risk of leaks and improves the energy efficiency of the building.

Our team offers a professional underlayment service for all types of roof structures, complying with all technological requirements to ensure the safety and durability of your home.

What is underlayment and why is it so important?

Underlayment is a special waterproofing layer that is placed between the roof structure and the final coating, such as tiles or sheet metal. Its role is to protect wooden elements, insulation and interior spaces from water penetration during heavy rains, drifting snow or damaged tiles.

A quality underlayment has several main functions:

• Moisture protection - stops water from penetrating under the coating and prevents leaks
• Condensation protection - allows moisture from the inside to escape, while at the same time preventing moisture from the outside to enter
• Improving thermal insulation - in combination with thermal insulation, it helps to create a more stable microclimate in the rooms
• Extending the life of the roof - protects the wooden structure from rotting and corrosion

When planning repair and construction of roofs, the correct selection and installation of underlayment is key to the long-term reliability of the entire system.

Stages in the professional installation of underlayment

In order for the underlayment to be effective, it must be installed using precise technology and with great attention to detail. The process includes several basic steps.

Inspection and preparation of the roof structure

First, a thorough inspection of the existing or new roof structure is carried out. The wooden elements are checked for moisture, rot or deformations. If necessary, roof repairs are performed, and rotten boards, beams and battens are replaced to provide a stable base for laying the foil.

Choosing the appropriate type of under-roof foil

Depending on the type of roof, slope, type of roof covering and the presence of thermal insulation, a suitable foil is selected. The most commonly used are:

• Diffuse underlayment foils - allow water vapor from the inside to the outside and prevent moisture from the outside
• Highly vapor-permeable foils - suitable for thermally insulated roofs
• Reinforced foils - with greater strength and resistance to mechanical damage

The correct choice is important to prevent condensation, mold and heat loss in the room under the roof.

Laying and fixing the foil

The foil is laid horizontally, from the bottom up, with each subsequent row overlapping the previous one. The manufacturer's recommended overlaps are observed to ensure watertightness. Particular attention is paid to the areas around chimneys, dormers, windows and other details where leaks most often occur.

Fixation to the structure is done using battens and appropriate fasteners. It is important that the foil is not too taut, but also not hanging loosely, in order to properly absorb possible loads from wind or snow.

Providing ventilation and finishing works

A ventilated space is provided between the under-roof foil and the final roof covering, which helps to remove moisture and prevents the formation of condensation. Then the tiles or other type of coating are installed, observing all the technology for quality roof construction.

Our advantages in laying under-roof foil

When choosing a contractor to lay under-roof foil, it is important to trust an experienced team who is well-versed in the different systems for roof repair and new construction.

• Professional consultation - we assist in choosing the most suitable materials according to the type of roof and your budget
• Precise installation - we comply with all technological requirements for reliable waterproofing
• Quality materials - we work with established manufacturers of underlayment foils and accessories
• Long-lasting solutions - our goal is to provide protection for your home for many years to come

Regardless of whether you are planning a partial roof repair or a complete roof construction, the correct installation of underlayment foil is an investment in the security and comfort of your home.

If you want to know for sure that your roof is protected from moisture, condensation and leaks, trust us with the installation of underlayment foil. Contact us for an inspection and an individual offer to get the best solution for your site.