Slate roofing does not last forever and requires repair or replacement
Features of slate roof repair
Slate is considered a durable material but not eternal. As a fragile material and exposed to weather surprises, the roof can begin to leak. Then it becomes necessary to repair it.
The lifespan of a slate roof reaches 12-15 years, and in areas with a temperate climate - up to 25 years.
Varieties and causes of roof wear in NYC:
- damage from improper transportation and storage of material;
- damage caused at the stages of primary construction;
- damage caused by excessive pressure of the fastening fittings during the construction phase;
- cracking of slate during careless maintenance of the roof and mounting the antenna;
- damage from the influence of temperature fluctuations;
- damage caused by excessive moisture and overgrowth with moss or lichen.
Prevention in the operation of slate roofing in NYC
Like any organism, the roof also requires a careful attitude towards it. The excellent condition of the roof can be preserved by timely removal of dry and overhanging branches, which can damage the roof during the wind.
You also need to clean the roof of moss and lichen regularly. Found minor flaws in the form of cracks must be treated with a primer.
Instructions for repairing leaks in a slate roof
- Remove lichen and debris from the roof;
- Remove debris from cracks with a brush;
- Thoroughly wash the roof with water pressure;
- Dry the roof;
- Clean and prime the damaged areas with linseed oil;
- Prepare a mastic based on refractory bitumen;
- Apply hot mastic with a spatula or trowel to the damaged area, carefully smooth it and paint over with oil paint. The extent to be painted must exceed the size of the location of the regions rejected;
- can cover small cracks with both bituminous mastic and chalk putty from drying oil and chalk;
Repair mixtures for cracks on the slate
- cement-based mixture;
- mixture based on drying oil with chalk;
- bituminous resin;
- ready-made sealant;
To prepare a mixture based on PVA glue, you will need three parts of cement, two parts of asbestos, and an aqueous glue solution (1: 1). The components are thoroughly mixed until thick sour cream. After the first layer has dried, it is processed with an adhesive solution (1: 3). The whole process is repeated twice more.
You can also buy ready-made repair mixtures in stores. They already contain a waterproofing material. This mixture can cover the entire roof and for prophylaxis purposes.
Can make the least costly mix from cement and sand in a ratio of 1: 3. Then knead the resulting mixture in water and apply to the surface of the slate sheets with a brush and, after drying, paint with a paint that is impervious to moisture.
Conclusion
The reputation of the asbestos-cement slate remains unchanged over time. This is influenced by both its cost and ease of installation. Slate is heat-resistant and not afraid of aggressive environments.
The opponents of slate have their arguments. They consider it harmful to human health due to the asbestos it contains. However, asbestos in sheets is not a speck of dust that could harm human health.
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