Re-bedding or Bedding is basically the first measure taken in a roof repair to ensure your ridge capping, valleys, gable ends or barge capping are secure on the roof and run in a nice straight line. Pointing is the measure that follows and bonds everything together Roof cleaning Sydney. A trowel is used to lay long, thin scoops of cement in which the ridge tile or roof tiles can be pushed onto and formed into place. Strong cement will have had years to harden and shift into position, holding the tiles and ridge capping firm.
Does my roof need re-bedding?
A roof inspection can be carried out to obtain an idea of the condition of the bedding. A poorly made bedding mix will ordinarily be crumbly or powdery. Sometimes the bedding might be so deteriorated that there is no cement under the ridge capping in any way. Other times the bedding cement could have begun to slide out from under the ridge slightly. In this circumstance, the cement would be too unstable to re-use and would need to be re-bedded. Usually a good cement mix for re-bedding is about four parts of sand to one part of cement.
Even perfectly strong and sound cement will begin to develop cracks between the cement and the ridgecapping over time. This is an ideal situation for the products that are out on the industry now. These’flexible pointing’s’ which are widely by roofing contractors utilized are designed to be pushed into these fractures.
The flexible pointing ‘bites’ into the cracks of the cement and forms a very strong bond over your ridgecapping and roof tiles. It is also a very good idea to make sure the collar of ridgecapping has flexible pointing installed to them. The’collar’ of the ridgecapping is the area of the front of the ridge that overlaps the previous ridgecapping. Installing collars to these are vital in prolonging your pointing and re-bedding.
Cement is a very robust roofing material and has been used for many hundreds of years. A strong mix of cement and also a neat, original roofing installation job will ensure that minimal re-bedding will be required for quite a long time. Bear in mind that not all roofs necessarily need re-bedding. If they do require re-bedding however, it is important to have the job done properly. The most imperative thing is to ensure you have the right advice.