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Weatherproof Your Garden Room

How To Weatherproof Your Garden Room For The Bad Winter Weather

The summer is drawing to a close; those months and months of sun have finally given way to the long-awaited rain. Great news for the plants, but if you have an outdoor building it could be time to weatherproof your garden room.

The rainy, windy weather can really take its toll on structures such as sheds, garden pods or garden rooms. Long spells of heat followed by heavy rain can cause damage that may well go unnoticed until it is too late – hello leaking roof, mould, cracks in the walls and so on. So, how can you treat these issues before they get big.

Here are our top tips on how to weatherproof your garden room.


The roof needs to be your first port of call for your winter checks. After having the sun beating down on it for months, you will want to look closely for any areas of weakness, cracks in the felt or tiles and after rainfall, see if the water is pooling in particular sections. A well-made roof should stand the test of time but it doesn’t hurt to just check especially after having such varied weather here in the UK this year. Our roofing panels & profiles are produced to form an insulated roof system that meets the modern need to create energy-efficient, weatherproofed and aesthetically pleasing buildings. Other roof options that outdoor buildings can come with include:

  • Flat roof coverings
  • EPDM
  • Fibreglass
  • Torch on bitumen
  • Living roofs
  • Pitched roof coverings
  • Asphalt shingles
  • Cedar shingles
  • Eco Slates
  • Metal tiles
  • Seamed metal roofing

It is important to identify which roof style you have and gain some advice as to whether it is easier to mend or change the roof if you come across leaks or damage. Changing a roof may seem like a big job but this will reward you over the years by being far more cost-effective and creating a warm and comfortable room.

Weatherproof Your Garden Room


One major cause of water pooling and leaks is a problem with guttering and drainage. To ensure that your garden room is weatherproofed throughout the winter months, check that the guttering is clear, check that there are no cracks or weak spots and provide a place for that water to drain away to, for example, a water butt.

Exterior Walls

Here at Modern Garden Rooms, we use red cedar timber cladding on most of our designs or a rendering just as what is used on homes. Both are hardwearing, long-lasting and tough against the elements. A red cedar timber exterior can be treated as and when required with an outdoor weatherproof sealant or paint and this can be applied every few years in order to protect your garden room. Signs that your exterior walls may have some weather problems include cracks, warping of wood, signs of leaks or mould and mildew inside the room. For serious issues, you should contact your contractor or local garden room expert.


Many garden room styles come with a beautiful decked area surrounding it. Decking is hardwearing, it looks good and also adds another area for sitting. However, with a lot of rain and dampness, it can become slippery and green. Using a jet wash to thoroughly clean this area will allow you to assess where attention may be needed. The best way to maintain your decking is by regularly applying a stain or weatherproof sealant.

Windows and Doors

If your shed, garden pod or garden room isn’t currently fitted with double glazing you will most probably start to see some signs of weather-related problems over the coming months. Single-paned windows can lead to condensation which will in turn lead to mould and mildew issues. On top of this, it will make your room far colder during the winter season. Switching to double or maybe even triple glazed windows and doors will fully weatherproof your garden room making it a comfortable place to be all year round.

By carefully checking your garden room regularly each year you will be able to maintain the building to a high standard and enjoy years of use.

Recent work

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