Here are my 6 steps to remove and correctly replace the cement under a ridge tile if you are looking to replace the cement on a gable apex then you need this page instead.
Replacing roof ridge tiles.
Replacement of a full set of ridge tiles.
Remove all the ridge tiles which are loose see below if a ridge tile is firmly attached but the mortar joints around it are cracked or crumbling.
With 28 years exp.
Http www fixmyroof co uk this is an introduction into how to relay or rebed roof ridge tiles.
This price includes lifting the tiles removing all the old mortar then applying a new mortar mix and pointing the tiles for a neat finish.
For replacement of 10 metres of ridge tiles on a two storey roof would cost in the region of 770 820.
This would consist of.
The ridge tiles will need to be fixed in a mortar bed to secure them and make them waterproof.
This can be done by one man in one day from a roof ladder and a ladder fixed to the fascia board.
Replacement of roof tiles that have cracked broken or disappeared is important to prevent roof leaks an ceiling damage once rain and wind appear.
Lift all ridge tiles remove all cement and dust off tiles replace any damaged tiles ridges prepare new cement 3 parts sand to.
This usually involves removing your existing ridge tiles and either reusing them or replacing them.
Fixing the problem quickly by yourself is possible provided it s only a few tiles.
For this type of job the tiles will involve lifting the affected tiles cleaning off the old mortar underneath and around the tile edges.
Having erected a stable scaffolding tower or other stable platform to gain access to a roof and using a roof ladder to get to the ridge check all the ridge tiles to find all the loose ones and to locate any mortar joints which have obvious cracks.
This price wud not include replacing any tiles if broken but roof standard tiles are fairly cheap.
150 200 access tower.
A dry ridge system can then be used instead of traditional sand and cement and i can only think of two common obstacles.
To replace two missing ridge tiles.
The very first job will be removing the old ridges without br.
To repoint the ridge on an up and over victorian house.
On a typical roof with easy access then fixing 1 3 ridge tiles would cost around 200.
When the existing mortar on your roof or ridge tiles ages it may become an ideal candidate for dry ridge conversion.
Prices for tile changing can be expensive and vary depending on the company you use.