Are Roof Battens Necessary?

Roof battens

In the construction of traditional roofs, battens are fixed to the roof structure, and tiles or slates are fixed to the battens. They maintain the roof covering in straight, consistent rows, and provide a strong anchor for the nails or clips used to secure the tiles or slates.

Does a metal roof need battens?

By design, some metal roofs MUST be installed over battens, some MUST NEVER be installed over battens, and some can be installed over battens OR solid decking. … You also could install a corrugated through‐fastened product and probably not have issues.

How many battens should be on a roof?

Battens should be fixed to rafters set at centres not more than 600mm apart. They should span at least three rafters and be at least 1.2m long. No more than one in four battens should be joined over one truss for gauges over 200mm.

Why is roof batten blue?

Red, blue, green, gold: roofing battens are a colourful lot. … The reason our product is dyed blue is to distinguish it as meeting the necessary standard: it’s a colour commonly used by Nordic and Baltic suppliers. But it’s the BS5534 grading stamp, not the colour, that’s important.”

How long do roof battens last?

You can expect traditional roofing felt to last for about 30 years, although this will depend on the conditions it’s exposed to. Other modern alternatives tend to be more durable, although they’re usually more expensive.

Can metal roof battens be reused?

Metal Battens And Reuse Of The Materials

It has been announced that metal battens should not be re-used, unless there is written advice from the manufacturer allowing the re-use and then only to the manufacturer’s installation requirements.

When should you replace roof battens?

Anytime that you redesign the layout of your roof as with certain types of renovations and extensions, you will need to replace the battens as well as the other elements of the roof. Storm damage or knockdown rebuilds are two examples of when this type of renovation may occur.

What should you put under a metal roof?

The traditional and most common material used for roof underlayment on a steep-slope metal roof is non-perforated, asphalt-impregnated felt underlayment. There are several types of felt underlayment including both organic reinforced and inorganic reinforced.

Do roof battens rot?

You can get some rot in roof battens, but, generally, it’s at the roof’s edges, such as at chimneys or in verges – the edge of a roof that has a gable. Battens in the main body of the roof do not rot, unless there are some major long-term defects, or the tiles have become porous.

How far apart should battens be for cladding?

Battens should be attached to the surface at a maximum distance of 500mm apart. The battens will need to run the entire length of the area being clad, adding in additional battens at any point where you will need to join 2 cladding boards end to end.

Are battens structural?

The quick answer is YES. Roof battens no matter how you look at them are a structural element of any roof. Roof battens are one of those constantly misdiagnosed and overlooked aspects of roof construction. But roof battens provide some extremely important structural functions to protect your roof.

Can you replace roof battens?

If an isolated batten between two rafters has to be cut out and replaced, it is better to either cut out and replace the batten over three rafters, or to install an additional batten of the same size below the short section of batten.

Should I get anticon?

Installing Bradford Anticon can reduce the risk of condensation formation under your metal roof which can cause damage to plasterboard ceilings and mould growth. … By insulating the metal roof, the temperature of the Anticon foil facing does not get as cold which reduces the risk of condensation forming.

Can you’re roof a house yourself?

The truth is, anyone can replace their own roof, with the help of the many DIY websites. For residential houses, roof replacements typically take two days – the first day to remove the old roof, and the second day is to install the new one. A day or two more can be necessary depending on the size of the roof.

Does a house need sarking?

Roof sarking will protect the frame of your house from the weather during construction. When your home is completed, sarking will protect your roof cavity from storm driven rain and dust, improve its thermal performance, help it resist bushfire ember attack and reduce the risk of harmful condensation.

What fall should a roof have?

If flat roofs are to work well, they have to have a slope, known as a fall, to shed rainwater. The fall should never be less than 1:80 and preferably about 1:40.

How far above roof should gutters?

A normal gutter will have about 1/2-3/4 of its width sticking out beyond the shingles to catch the runoff. No stickout means the water coming off the roof, especially in heavy rains when it is cascading off the roof rather than dripping, will totally miss the gutter and go straight off onto the ground.

What is Trimdek?

lysaght trimdek® is a subtle square-fluted steel cladding, available in long lengths, so on most jobs you can have one sheet from ridge to gutter without end laps. … the strength, spanning ability, lightness and rigidity of lysaght trimdek permits wide support spacings to be used with safety.

Is roof felt waterproof?

So is roofing felt waterproof? Yes. The third benefit of roofing underlay is that it provides an extra layer of insulation to prevent heat from escaping the building.

Can you walk on Fibre cement roof?

Fibre cement roof sheets are generally quite fragile. For this reason, it is important to always use crawling boards or walkways and roof ladders.

Should roof felt be tight?

Fitting the felt

Work along the roof taking out any excess slack in the felt, but do not pull it tight; a slight sag between rafters is ideal as it will allow any water to drain down the felt.

Is Blue batten treated?

Our timber batten is pressure treated to resist rot and insect attack, and machine graded to meet BS5534.