Production of the wooden substructure
Most distinguished roof damages caused by extreme weather conditions such as sharp winds occur mainly because of improper roof preparation. Roof boarding, that is, the making of the substructure is mostly carried out on narrow roofs, whether they’re made out of concrete or wood, by direct fastening on the supporting substructure.
It’s a known fact that a lot of workers in this industry easily approach such projects, with a mindset of something like “..it’s just a truss, make it slip in and it’ll be fine..” – which is of course, utterly irregular. Roof boarding is one of the most important parts of roof construction, because exactly the quality of roof construction dictates the quality of shroud fastening – which in the end results in stability and strength of the roof construction.
When it comes to waterproofing, its use is totally expected. The mere board needs to be tightened very well to the wooden boards and fascia, with of course appropriate-length screws. Best results are given by fastening with twisted screws.
Craft tip: If desired, screws can be made almost impossible to be pulled out, and this is done by letting them rust before the screwing process.
Roof preparation is shown on the given images, whether it’s about a classic wooden construction, or a concrete one. Roof preparation shown on the image effectively neutralizes condensation. Condensation appears on almost all roof types, including sheet metal, asbestos, tiles etc. With condensation prevented, ventilation is secured which is very significant for both waterproofing and longevity of roofing materials – in this case – sheet tiles.
Concrete truss – roof construction
When we’re dealing with concrete panels (trusses) – we recommend installing hydroisolation in one line from the ridge caps to the end of the panels – along with a welded cardboard. Counter-lath of minimal dimensions of 8x5cm is set above the hydroisolation. Counter-laths need to be set so the distance between them is around 80cm. After that, similarly to the construction described above with the wooden truss, wooden boards are set over the counter-laths.
Truss with an existing cover material of “tegola” or “eternit”
When it’s about rehabilitating trusses with an existing cover material, it’s recommended that de-montage isn’t done. Over “eternit” or “tegola” – the barbecue construction can be set (wooden boards). This way, the existing roofing material will perfectly serve as hydroisolation, also, this neat situation allows for significant savings when it comes to roof preparation expenses.
Assembly of: Gutters, introductory sheets and metal wind battens (molders)
After the roof is fully prepared, we start to montage the gutters along with appropriate hooks. This procedure is explained in detail on our Products page, under Surface Water Drainage Systems. Click to see more. After the assembly of gutters, introductory sheets are mounted on the first horizontal board. The introductory sheets are multi-taskers, effective in preventing water breaches between the eave and the groove, as well as under the covering sheets. Introductory tin also serves as protection for the first wooden board, and also accumulates to the overall aesthetics of the building.