 |
If your fiber cement roof is old (before 1997) it probably consists of corrugated sheets combining cement and asbestos, a carcinogenic and particularly dangerous product. Roofs of this type must be removed to protect the health of the residents and the environment. They become porous as they age, turn to dust and the risk of contamination is very high
If your fiber cement roof cannot be simply renovated because it is in too bad condition, you will have no choice but to have it removed and changed
If you are not sure what type of fiber cement roof you have (asbestos or not?), Contact a professional who will make an asbestos diagnosis
Depending on the state of conservation of asbestos materials, or the recent construction of your fiber cement
cover, the diagnostician can advise a simple recovery
Before starting any fiber cement roof renovation work, it is imperative to have a diagnosis of your roof to determine if it contains asbestos. Indeed, this material was previously very often present in this kind of roofing, and it is common knowledge that asbestos is highly carcinogenic when it is inhaled
The first step in cleaning a fiber cement roof is to apply defoamer to the roof; then rinse it off before applying fiber cement paint
The roofing professional will spray the anti-foam product suitable for your roof over the entire surface and then let it act. He will then remove the remaining foam and clean the roof with a low pressure solution. The use of asbestos should be avoided, even more in the case of the presence of asbestos because if the fiber cement were to be damaged, then the asbestos fibers could be released and dispersed in the air
Always in the event that your fiber cement roof contains asbestos, tools and abrasive products are to be banned, and it does not sand, drill, or brush it
cover, the diagnostician can advise a simple recovery
Before starting any fiber cement roof renovation work, it is imperative to have a diagnosis of your roof to determine if it contains asbestos. Indeed, this material was previously very often present in this kind of roofing, and it is common knowledge that asbestos is highly carcinogenic when it is inhaled
FIBROCEMENT ROOF CLEANING
The steps for cleaning a fiber cement roof are the same for a roof with asbestos or without asbestos, however the handling and tools used differ because asbestos cement must not be damagedThe first step in cleaning a fiber cement roof is to apply defoamer to the roof; then rinse it off before applying fiber cement paint
The roofing professional will spray the anti-foam product suitable for your roof over the entire surface and then let it act. He will then remove the remaining foam and clean the roof with a low pressure solution. The use of asbestos should be avoided, even more in the case of the presence of asbestos because if the fiber cement were to be damaged, then the asbestos fibers could be released and dispersed in the air
Always in the event that your fiber cement roof contains asbestos, tools and abrasive products are to be banned, and it does not sand, drill, or brush it
FIBROCEMENT ROOF REPAIR
If an asbestos-free fiber cement roof is repaired in the same way as a conventional roof, an asbestos cement roof can only be repaired by a professional specialized in asbestos removalIf you want to avoid having to use asbestos removal, you can opt for an over-covering, a less expensive technique since there is no need to replace the covering material
This process makes it possible to preserve the fiber cement roof without having to replace it and without it generating fibers dangerous to health and the environment
It will suffice with this technique to put a new roof over the entire roof surface, but without drilling the latter. This will imprison the asbestos which no longer represents a danger
It should however be noted that with this method, controls are compulsory in order to verify the non-dangerousness of asbestos