Setting out up the roof gauge set the first batten at eaves to allow the tails of the eaves course tiles to overhang the fascia by 40 to 45mm ie.
Setting out a roof for tiles.
Start by establishing the position for the lowest batten for the slates tiles on the roof allow for the overhang of.
With the joints between them.
Plain tiles are laid on the battens in a brick bond pattern i e.
The first course of tiles should be set out to equalise all the gaps between the tiles start and finish at corner or abutments and hopefully line up with the sides of window openings.
Roofing with plain tiles positioning the battens.
Concrete tiles which are usually lighter than clay tiles can easily place over 10 pounds of weight per square foot on a roof.
Make sure the tile lugs are seated snuggly onto the top edges of the battens.
Then determine the position of the highest batten at the top typically the top of the uppermost row of slates tiles.
For example 25 x 50mm battens are required for single lap modern roof tiles laid on rafters with a 600mm span.
The updated bs 5334 code of practice for slating and tiling specifies a number of batten sizes based upon the span of the rafters and the product being used.
Joints should be directly over rafters with the batten square cut tightly butted and skewed nails.
If a batten end is to be set in mortar be sure an appropriate treatment has been applied.
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Having set out and nailed all the battens the setting out of tiles on each batten should be considered.
Just short of the centre of the gutter.
Firstly get two of your roof tiles and either two full battens or two offcuts of batten and place them onto the roof one above the other.
Next place your two tiles one on top of the other loose onto the battens without anything being fixed.
To put it in simplest terms a basic asphalt shingle perhaps the most common roofing material in america will typically place a weight of less than 3 pounds per square foot on a roof.
Set the last batten at the ridge so that the ridge tiles will overlap the top course of tiles by at least 75mm.
Roofing battens are nailed into the rafters or roof joists or trusses and provide support for the roof tiles or slates.
Start at the lower edge of the roof nailing the batten into place at the centre of the rafter.
Each plain tile is 165mm wide and can have up to 3mm gap between them.
This is not required for dry fix systems.