If my flat roof is leaking what should I do?
The main problems with leaking roofs are that it is very difficult to find where the actual leak is in the roof. The very nature of a leak is that water may leak in at a certain area and then it may travel for a few meters and then the leak may appear at a different point on the inside. We then automatically think that the actual leak is right above the visible leak. This is most probably not the case; the leak may well have started at an entire different location.
Waterproof.ie Polyurea and polyaspartics are the best products to use to fix a leaking roof. The products are manufactured by our parent company and are blended to the finest quality. Traditionally tar based product were widely used to seal a leak. This is not a long-term solution and may not be successful at all. Unfortunately the traditional tar based products do not adhere to surfaces very well. They will crack and peel with sunlight and is not UV stable.
Polyurea will not crack or peel, it will adhere to wood, concrete, steel, fiberglass and many other different substrates. It is UV stable, it will not crack, peel or warp. Waterproof.ie product are constantly being worked on with our in house team of chemists in our purpose built labs.
Any seam in the roofing material is a natural spot for a leak. Look closely at all seams. Do you see cracks or holes of any type? Is there a place where you can lift a small edge of a seam? Also a common point of leakage in these roofs are where the concrete has cracked, particularly if the crack is in an area of roof ponding or near a roof drain where the most water accumulated during wet weather. If an area has poured concrete, typically reinforced with steel mesh or steel re-bar, has a gentle slope to a roof drain. Imperfections in roof construction or less often due to sagging or structural movement can cause low areas that pond. Waterproof.ie can also provide your will many crack repair products and waterproofing solutions to help and assist in the preparation of roofs for an elastomeric roof coating.
Areas of roof ponding show up as dark areas where dust and debris accumulate in the areas that stay wet longer on the roof surface. Ponding that has evaporated within 24 hours of a rainstorm is not considered an actionable roof defect. If you do a thorough job of preparing the concrete roof surface for coating with an impermeable sealant such as Waterproof.ie polyaspartic or polyurea you should find and remove all of the old, poorly-adhered roof coating to expose clean dry (let it dry if needed) concrete surface.
Tips & tricks of the trade when preparing & scraping a previously-coated concrete roof surface. Remove all loose debris. Scrape and remove existing roof coating that is not soundly adhered to the roof surface. Waterproof.ie are very rigid about the roof preparation prior to coating, but we as a company figure it’s better to sweat just once than to have to do the job all over again next year because I did a poor surface preparation job the first time.
The best way to ensure that your roof is completely watertight and sealed, is to ensure all preparation is done to the highest possible standards and the customer may consider completely coating the entire roof area. This will ensure a complete sealed watertight roof. Consideration may also have to be given to the fact that a roof may contain a lot of moisture if it had been leaking over a period of time. If you coat over this rook and this moisture may need an area to escape, this can only be done by venting the roof. We commonly see vents on roofs all around the world and this can be one of the reasons for this. All roofs need to breath and air needs to get in and out. When the sun shines on a roof and the temperature rises this will cause the water ingress or moisture to expand into gas and this gas needs to escape and this is why we use vent.