How To Tile A Porch Roof?

How To Tile A Porch Roof?

When tiling a roof where do you start?

Start on one edge of the roof and fix with two or three nails then roll out the roofing membrane or felt keeping it taught but with a very slight hint of sag, this will ensure any water that does end up on the felt will run between the rafters and end up in the gutter.

What goes under tiles on a roof?

Roofing felt, otherwise known as roofing underlay, sits underneath the tiles or slate on your roof and secures them in place. The felt is laid on the top of the supporting rafters and beneath the tiles or slate battens.

How do roof tiles stay in place?

Roof tiles are ‘hung’ from the framework of a roof by fixing them with nails. The tiles are usually hung in parallel rows, with each row overlapping the row below it to exclude rainwater and to cover the nails that hold the row below. They include ridge, hip and valley tiles.

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How do you set out roof tile battens?

Set the first batten at eaves to allow the tails of the eaves course tiles to overhang the fascia by 40 to 45mm, ie; just short of the centre of the gutter. Set the last batten at the ridge so that the ridge tiles will overlap the top course of tiles by at least 75mm. See drawing below.

How much should Roof Tile overlap?

The space between timber battens is calculated using the tiles – Tiles should always have a minimum of 3 inches of overlap, apart from at the eaves where the eaves tile should reach the centre of the gutter.

Does roof need underlay?

Roofing underlayment may not always be necessary, but many areas require felt or synthetic underlayment. It’s important because it acts as a moisture barrier to protect your roof from rain and other inclement weather.

What is the best underlayment for a tile roof?

Best: Traditional hot-mopped asphalt over 90# felt is an excellent choice where labor is available and the contractor is willing to work with hot-mopped asphalt. LeakBarrier PS200HT self-adhering membrane is suitable for a superior tile roofing system.

Can rain get under roof tiles?

Whilst roof tiles and slates are designed to keep out any rain, there is always the chance that strong winds can lead to rain forcing its way through any gaps or underneath the tiles.

How do you install tile roof underlayment?

Unroll approximately 5 feet of underlayment horizontally on the roof so one long edge is even with the bottom edge of the roof. Adjust the underlayment so it is square and level, using a carpenter’s level. Secure the bottom edge with the same nails used in the previous step. Space these nails 24 inches apart.

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How far apart are roof battens?

Each product has different requirements, for example, batten spacing for (0.42BMT) corrugated metal roofing needs to be no more than 1100 mm apart, but batten spacing for 0.48BMT metal roofing can be up to 1600 mm apart.

Do all roof tiles need to be nailed down?

For all roof areas and rafter pitches, every tile should be mechanically fixed with at least a nail, a clip, or a combination of these options that provide adequate combined resistance to the wind uplift loads on the tiles. For roof pitches of 45° and above, each tile should be fixed with at least one nail.

How do you calculate roof tile spacing?

1 Measure distance between top of eaves batten and top of ridge batten. 2 Divide distance by maximum gauge of tile being used. 3 Round figure up to give number of courses up slope as a whole number. 4 Divide measured distance by number of courses to give batten gauge.

What is maximum tile gauge?

Tile Specification The vertical surface is to be covered with Russell Plain Tiles laid to a maximum gauge of 115mm. Each tile must be twice nailed using 38 x 2.65mm aluminium alloy nails as per fixing specification. 267. Features and Benefits.

How many roof battens do I need?

To ensure this, the battens should be at least 1.2m long. Not more than one in four course of battens should be joined over one truss for gauges over 200mm. Below a 200mm gauge, there can be 3 consecutive joints in any twelve courses.

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