task 3: replaceing broken tiles on roof

Method Sstatement

We first have to research what tiles are on the clients roof then buy the materials and tools we need. We have to make sure that we have the correct P.P.E (gloves, goggles, etc). We first put the ladder up so that we can retrieve the tiles. We retrieve the tile using the slate ripper to break the nails so that we could slide the tiles out. We then dispose of the broken tile. Then we get the new galvanised nails and the new roof tiles. we then place the new tile were the old one used to be. We then make sure that the tile is in line with the others, so that we can then attach the tile to the roof using the galvanised nails. we make sure that the galvanised nails are in the pre-drilled holes of the tile then hit the nails till flush with the tile. Once all the tile are attached we then clean up and put the tools away.

Risk Aassessment

• The risk of handling a broken tile is that small parts can splinter of and go into your eyes so you need goggles
• You should wear overalls to protect your legs from getting cut or any cuts that may get infected
• You will need to wear steel toe capped boots in case you were to drop on of the tile on you foot.
• if we were to use scaffold around the roof you will have to use a hard hat in case something was to drop on to your head. you would also need a cargonet to protect the public from falling debree

Defects

• nail fatigue -  nail fatigue is when the nails have rusted all the way though and you would have to replace the whole roof over wise the tile would start to fall of.
• weather - when sudden increases and decreases the temperature make the tile expand and contract. 
• people working on the roof - when people walk across the roof the tile may crack.

Limitations

•     The limitations of clay tiles is the weight of the individual tiles if the roof used to have them then it should be strong enough but if it has not you my need install extra support beam. Another of the limitation for clay roof tiles is the cost, It cost around £2.00 per tile.

•      The limitations of useing galvinised nails is that they last 25 years before they rust and you will have to replace the whole roof this is know as nail phattigue.

Tools and material

• slatte ripper
• clay tiles x 2
• hammah
• bin
• broom
• gavinised nails x 4
• dust pan and brush

Quote

materials : clay roof tile and galvinised nails = £10
labour : 2x people = £30 an hour x 2
fuel : £10

total = £80