Add an underlying screen. The HPV (Highly Permeable to Water Steam) underlayment screen helps to waterproof your roof with air and water while allowing water vapour to escape. It reduces pressure-depression phenomena of the roof, responsible for the flight of tiles during storms which enables the installation of pipes on lower slopes. It finally avoids the penetration of powdery snow, dust, pollen. How to choose the screen? Everything depends on the frame, the spacing of the rafters, the type of coverage, but also the presence or not of attics. For more accurate information call your Toronto Roofing Contractor experts today. Only a professional can judge the feasibility of the operation.
Install roof windows.
Quality roof windows with excellent thermal and sound performance provide considerable solar energy in converted attics. Peripheral connections must be perfectly executed to ensure reliable sealing and thermal insulation. Today there are models suitable for classified buildings, metal or wood. It can be installed the flat roof or sloping, regardless of its size. It offers excellent thermal and sound insulation. The professional must check if all the requirements for the installation are met. The abundant rains will feed the plants, so the watering system is less complicated. Providing a high-performance waterproofing will be necessary. The attic, them, must have adequate and adjustable ventilation to avoid condensation. Choose a system whose plants are mostly mature when laying.
Install photovoltaic tiles
More aesthetic but more expensive than large panels, the photovoltaic tiles adapt well to slate or terracotta roofs. The watertightness of the roof must be guaranteed and provide proper ventilation of the roof because the panels generate a real overheating, too often neglected. This overheating is also detrimental to the performance of the photovoltaic panel. For a zinc cover, the integrated panels are specific because the contact between different metals causes accelerated oxidation. It is better to go to zinc fitter and opt for products that have received a professional opinion.
Real or false slates for a roof renovation
Natural slate, made from shale rock has an almost unlimited lifespan but is quite expensive. Slate fibre cement is often used at a lower cost but watch out for the risk of fading over time. Terracotta products dyed in the mass can also merge durably with slate but without reaching its finesse. It is therefore essential to choose taking into account the price of the project, its appearance and its durability.
Conclusion: best in class quality
Opt for a quality product and thick enough because it is made to last. Once installed, the screen is exposed to the risk of ageing, firstly because of UV rays (before the laying of the cover), then hot weather under the cap in summer (they can exceed 80 degrees C). Some membranes have a metallised surface and therefore reject some of the heat in the summer while reducing winter energy losses and allowing water vapour to escape.