Setting Out A Roof For Slating

This is also the lathing gauge for that course.

Setting out a roof for slating.

Start by establishing the position for the lowest batten for the slates tiles on the roof allow for the overhang of. Alternatively the fascia board can be raised slightly in order to raise the bottom of the starter course. For example a 20 inch slate with a 3 inches headlap would have an 8 5 inches exposure 20 inches 3 inches 2 81 2 inches. First courses of slating on the main roof note the undereaves slates fitted upside down to form a drip with the first course slates.

Installation when laying out a roof in preparation for slating it chalk lines across the entire roof area marking the top edge of every row of slate. Traditionally this has been done by nailing a cant or shim strip made from wood under the bottom edge of the starter course usually the same wood that is used to create the roof deck see photos below. The first thing to do is work out the slate exposure as you would for normal slating the length of the slate minus the headlap divided by 2 the exposure. Locate the centre point of the eaves and centre the first under eaves slate.

Measure between the top of the top batten and the top of. The width of the first course slates was 12 a very heavy thick slate to cut. Generally speaking 20degrees is the lowest advisable pitch for a slate roof depending on the size of the slates and how much that the roof is exposed to moderate weather conditions. The building will have an exposed timber eaves.

Work towards both verges with the remaining under eaves slates. Roof jacks nail to the roof deck to create a platform to work from. When slating with a shallow pitch a wide slate is highly recommended for maximum side lap or lateral lap side overlaps. You should have all of these tools plus a nail belt chalk line utility knife and a collection of ladders.

The gutter will be formed in cast aluminium.