A home improvement vapour barrier that controls condensation and protects insulation. Homes stay drier, reducing worry about damp and mould. Is Just The Job Supplies Vapour Check Barrier the right choice for your build?
⚡ At a Glance
- • Moisture Control: Controls warm, moist air to help prevent condensation in building cavities
- • Best for: Builders, renovators and DIYers working on timber frames, underfloor and roof projects
- • Not ideal for: Projects requiring vapour-open membranes or breathable wall systems
125 micron (500-gauge) thickness gives robust vapour resistance suitable for walls, floors and roofs. Semi-transparent green colouring helps with stud and beam alignment during installation.
Reduced condensation – with 125 micron vapour resistance
125 micron thickness, described as 500-gauge, creates a dense layer that resists movement of warm, moist air through cavities. The barrier sits on the internal side of insulation to limit moisture reaching cold surfaces.
Lower risk of damp and mould forming within walls, floors and roofs, protecting insulation performance and building fabric.
Quicker coverage with fewer joins – thanks to 4m width and cut-to-length options
Four metre width covers wide spans and multiple cut-length choices allow selection of the exact roll length required at the point of purchase. Wider sheets reduce the number of laps needed across large runs.
Less time spent joining sheets and fewer overlaps mean faster installation and fewer potential weak points for moisture ingress.
Easier alignment and tidier finishes – with semi-transparent green material
High transparency lets contractors see studs and beams through the membrane, aiding positioning and stapling. The green tint keeps visibility without obscuring underlying markings.
Faster, more accurate fixing leads to neater finishes and reduced rework on site, especially useful during tight or awkward installations.
✨ The 4 Key Reasons for Just The Job Supplies Vapour Check Barrier
- 125 micron thickness - Significantly reduces warm air passage and condensation risk
- 4m width - Covers large areas quickly, cutting installation time
- Multiple cut lengths - Minimises material waste and matches job requirements
- Semi-transparent green - Makes stud alignment and fixing faster and more accurate
📋 Technical Details at a Glance
- Category: Home Improvement
- Brand: Just The Job Supplies
- Product ID: B0DLBDRDXV
- Thickness: 125 Micron (500-gauge)
- Width: 4 metres
❓ Frequently Asked Questions
Q: Can this vapour check barrier be used on roofs and floors?
A: Yes, suitability is stated for walls, floors and roofs, including underfloor and roof applications.
Q: What is the thickness of the membrane?
A: Thickness is 125 micron, also described as 500-gauge for robust vapour resistance.
Q: Are different lengths available?
A: Yes, multiple cut options are offered so the preferred roll length can be selected in the material options.
🏆 Our Verdict
Suitable for builders, renovators and DIYers who need a reliable vapour barrier for timber frames, underfloor and roof work. Robust 125 micron thickness combined with semi-transparent green material helps control condensation while making alignment and fixing easier. While overall cost varies by project, durable performance and reduced risk of damp make for sensible long-term value.
