Normally £4 per sq ft · FREE upgrade in the sale
Breathable membrane, included FREE
An extra layer of weather protection, included as a FREE upgrade in the sale. Normally £4 per square foot of building footprint, breathable membrane helps resist wind-driven rain while allowing water vapour to escape. Excludes BBQ sheds, outdoor kitchens, glass houses and log cabins.
A CLOSER LOOK AT YOUR SHED
Small layer. Serious protection.
- Outer cladding
- White membrane
- Timber frame
THE CONSTRUCTION
Horizontal timber cladding on the outside. A thin, white breathable membrane behind it. A sturdy 38 × 50mm timber frame on the inside. The layer you rarely see does an important job.
Where it sits
The cladding is the outer protection. The membrane behind it adds a second weather-resistant layer while allowing water vapour to pass through. The diagram shows our framed wall construction.
A FREE upgrade in the sale
The normal upgrade price is £4 per square foot of your building’s footprint. For example, an 8 × 6 ft shed has a membrane upgrade price of £192 — included FREE in the sale. Your product page and the builder show the price for your selected size. BBQ sheds, outdoor kitchens, glass houses and log cabins are excluded.
Keep your building ventilated and avoid leaving wet equipment inside. Membrane supports moisture control; it does not replace ventilation, insulation or regular timber care.
Five reasons it matters
Helps keep rain out
An extra water-resistant layer behind the cladding helps protect against wind-driven rain.
Lets moisture escape
Its breathable structure lets water vapour pass through, helping the wall dry out and reducing moisture build-up.
Helps protect the timber
Managing moisture helps reduce conditions that encourage rot and mould. Good ventilation and routine care still matter.
Helps reduce draughts
Helps limit air passing through gaps in the cladding, adding another layer of weather protection.
Part of a well-planned wall
The membrane is not insulation or a guarantee against condensation. If you plan to insulate, ask for advice on a suitable wall build-up and ventilation.
Built properly, all the way down
Explore our buildings and check the specification for your chosen model, including its timber treatment and roof covering.
