How to Fireproof Sheds and Garden Timbers

How to Fireproof Sheds and Garden Timbers

Posted By: John Published: 15/05/2019 Times Read: 3812 Comments: 1

While people often try to improve the safety of their homes, many tend to overlook the garden or outdoor spaces. With timber typically a key feature of garden areas, the garden can easily be at risk of fire. In this article, we take a look at why garden timber should be fireproofed and the ways in which you can better protect sheds and furniture from fire damage.

Why Should Your Garden Timber Be Fireproofed? 

There are a number of reasons why there may be a fire in your garden. Some fires, such as bonfires, fire pits or barbecues, will usually be safe if used correctly. However, there is always the risk that an accident can occur, causing the fire to get out of control and spread throughout the garden causing great damage. In the warm summer weather, when the grass is drier, your garden and home is more at risk of fire damage, as the fire can catch and spread far more easily on dry vegetation. Wood can catch fire quite easily and will burn quickly, so it is, therefore, essential that all timber items in your garden area are fireproof, to ensure the safety of your home.

Garden timber includes constructs such as sheds, summerhouses and gazebos that are made from wood, as well as features and decorative elements like pergolas, wooden chairs and benches. While sheds and other garden constructs can be created using metal or plastic, which pose less of a risk of burning, most sheds in the UK are currently made from wood, as timber tends to maintain a steady temperature inside the construct throughout the year, as well as being a lower cost option. 

Not only is fireproofing your garden timbers a good idea from a safety perspective, but it can also be required by law in some cases. Building regulations can require that larger sheds or summerhouses be made of primarily non-combustible material, but with many such constructions made from timber, a fireproof coating is likely to be needed. 

How to Fireproof Garden Timber

Fire retardant liquids are one of your best choices for protecting timber from fire. Fire retardant liquid can be used on both the interior and exterior of a wide range of wooden constructs; including sheds, summerhouses, decking and fencing of both softwood and hardwood, meaning that almost all garden timbers can be protected. 

Applying a fire retardant coating to decking and fencing is just as important as fireproofing your shed, as this will help stop the spread of fire if it does occur. Furthermore, if a barbeque is positioned on a wooden deck or near a timber fence, then this can pose a fire risk, so ensuring each wooden panel is well coated in fire retardant liquid is crucial for preventing fire-related incidents. 

Standard fire resistant paints are typically an inferior choice for your garden timber, as they will also require an additional protective top coat, as the paint can become worn away from the surface, impacting on the efficiency of its fireproofing. Some paints may also be coloured or add a glossier effect to wood, which may not be what you want for your decking or fence, while the flame retardant liquid is clear, not affecting the appearance of the timber. Flame retardant liquids are also far easier to apply than paint, as they can be simply sprayed on. Unlike paint, the liquid cannot be worn away, as it impregnates itself into the wood, locking the flame retardant into the timber.

For sheds, summerhouses and similar constructs, adding insulation can also work to help prevent fires. Fire resistant insulation, such as fibreglass or sheep’s wool, should be added to the roof and walls of your timber constructs, as this can help to keep the building cooler in the summer, reducing the risk of fire. As fibreglass melts and sheep’s wool needs more oxygen than is in the air to become flammable, they will not burn if a fire does occur, stopping the spread of the flames. 

You can explore our full range of fire retardant coatings to discover the right product to meet your timber’s needs. If you would like to learn more about fire protection for your home, business or build, then do not hesitate to get in touch with our expert team at ACS Ltd: call us on 01935 414012 or email us at

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