What is the difference between a batten and a purlin?

What is the difference between a batten and a purlin?

But a “purlin” is applied directly onto the roof rafters, running perpendicular between them, while a “batten” is nailed to roof sheathing or applied over an existing roof for installation of a new roof. Also, rigid insulation can be placed in the space between battens.

What is truss battens?

Roofing battens or battening, also called roofing lath, are used to provide the fixing point for roofing materials such as shingles or tiles. The spacing of the battens on the trusses or rafters depend on the type of roofing material and are applied horizontally like purlins.

How do you attach battens to rafters?

To make sure that it doesn’t move, use the nail gun to secure the batten in place on a few rafters. Pre-drill a hole in the first rafter and secure the batten to it with the batten screws. Repeat this process so that the batten is secured to every second rafter.

What is a structural batten?

A batten is generally a strip of timber (although it can also be steel or plastic) which is used in the construction of buildings. They are typically used as spacers to raise the surface of a material, or as a secondary framework onto which a surface may be fixed.

What is difference between Rafter and batten?

Rafters – are supporting timbers that span between walls or other supports and carry the roof which ceiling battens or the ceiling itself can be attached to. You can see the rafters here on this image. Battens – are a length of squared timber or metal used to hold something in place or as fastening against a wall.

What is batten wood?

The battens are strips of lumber, typically 1 to 3 inches wide, which are then nailed down to cover the joins where the vertical planks meet. Battens should be wide enough to extend at least ½ inch on either side of the join. The vertical planks can range from 6 to 12 inches wide, depending on preference.

What are batten screws?

Batten Screws are heavy duty fasteners, typically used for fixing larger timber joints such as decking sub-frames. These screws have a bugle head (self embedding ribs), a Type 17 point for self drilling into wood (although hardwoods will need a pre-drilled pilot hole) and are a 14 gauge screw.

Do roof battens need to be treated?

Treatment – Roofing battens should be preservative treated to Use Class 2 in accordance with BS 8417. Different manufacturers use their own types of preservative treatment and may offer different guarantees as a result.

What is a wooden batten?

batten, term used in joinery for a board 4 to 7 inches (10 to 17.8 cm) wide and not more than 3 inches (7.6 cm) thick employed for various purposes. In sailing the word is applied to a strip of wood nailed to a mast to prevent rubbing or to fix down a tarpaulin over a hatchway in rough weather.

What is batten and joist?

Battens – are a length of squared timber or metal used to hold something in place or as fastening against a wall. Joists – are supportive timbers which the flooring is fixed to. You can see the joists here on this image – they run horizontally at floor level.

Do you need ceiling battens?

It’s not essential you do but it just makes locating ceiling joists easier to fix the battens. If you place a straight edge (one at least 1800 long so you can span 4 joists) on your ceiling and find the lowest point, this may be just 1 joist that sit a bit lower than the rest.

What are wood purlins?

In wood construction Purlin plates are beams which support the mid-span of rafters and are supported by posts. By supporting the rafters they allow longer spans than the rafters alone could span, thus allowing a wider building. Purlin plates are very commonly found in large old barns in North America.

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