Mortar Roof Valley

The correct mix ratio is 3 parts sand to 1 part cement this is much stronger than bricklayers use 5 1 as the cement on the roof must withstand more driving rain than a typic.

Mortar roof valley.

He didn t go on the roof just up the ladder. Never try and work on a roof from a ladder as a. With a clean valley you can lay down some peel and stick roofing membrane. Technically you can use the roof tile mortar to repoint the ridge area.

However due the movement and flexing in the ridge this will be a maintenance issue that will have to be addressed from time to time. First clean the debris out of the valley including sawdust nails and whatever else is in there. One of the areas of a pitched roof most prone to leakage if not constructed properly is the valley. A common misconception is that the mortar bedding is there to prevent water access.

Fold the top over the roof ridge and cut the bottom along the drip edge metal. Second guy said the mortar holding the tiles in place along the valley needs replacing previous guy said mortar was fine as all the tiles are loose not fixed in place 780 to dig out replace mortar. Hi there are lots of reasons for the mortar to fall out different pitch slopes tiles etc the way i wall the valleys up with new mortar is using the right mixture of sand and cement 3 sand 1 cement with added pva if you bed tiles in wet mortar and then leave to dry for at least 24 hours you can then add second coat of mortar making sure you coat over first coat of mortar with ova first i guarantee this will last for years also i would like to add use a very course sharp sand in your mix along. Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet.

Roof cement is primarily used to hold roof tiles hip tiles and ridge tiles securely in place it also keeps out rainwater. It is an area where water is directed towards rather than away from therefore correct detailing and construction is essential. A scaffold tower has been used for access in this video. The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off.