Hydrocarbon & Gas Management Solutions

Why Ground Gas & Hydrocarbon Protection Matters

Brownfield sites present unique construction challenges. When developing land previously used for industrial activities, dangerous ground gases and volatile chemical vapours often linger in the soil beneath. These toxic compounds pose a direct threat to structural safety and human health, so they must be managed properly.

Risks to Buildings and Structural Safety

Without adequate containment, subterranean gases slowly migrate upwards. They find small cracks, floor joints, and service pipe penetrations. Over time, hazardous gas accumulates inside enclosed ground-floor areas and basement structures. This creates serious health risks for future occupants.

Preventing Toxic Vapour Migration

Site safety requires a permanent solution. Installing a dedicated gas membrane installation creates an impermeable seal between the ground and the building to block harmful vapours completely. Proper containment protects the structural integrity of your property while ensuring full compliance with UK environmental standards. For a deeper look into selecting the correct barrier, read our guide on choosing the right gas membrane for your project.

Our Gas & Hydrocarbon Barrier Services

At Catalogue Engineering, we deliver end-to-end ground gas protection for commercial, industrial, and residential sites. We handle every stage of the process.

Material Supply and Selection

We source high-grade gas membranes, hydrocarbon barriers, and geotextile protection fleeces from trusted manufacturers to suit your precise soil conditions.

Professional On-Site Installation

Our NVQ-qualified gas installers fit, join, and hot-weld membrane panels. This approach guarantees a seamless, airtight, and liquid-tight seal across the entire footprint of your build.

Specialist Sealing and Detail Work

Penetrations require extreme precision. We supply and fit specialist pre-formed top hats, self-adhesive gas tapes, and corner cloaks to seal every pipe entry securely.

Validation and Integrity Testing

Proof of performance matters. We offer independent third-party verification and testing services to certify that your installed barrier remains completely free from punctures or leaks.

Secondary Containment and Bund Construction

We design and construct heavy-duty chemical bunds and fuel containment barriers. These specialized systems reliably retain hazardous spills up to 110% of total storage volume.

Harmful Gases and Chemicals We Protect Against

Site histories vary, so ground hazards differ from plot to plot. To understand how specialized chemical protection differs from basic damp-proofing, read our breakdown on hydrocarbon barriers vs standard gas membranes. Our advanced barrier systems are tested to resist a wide spectrum of subterranean hazards.

Hydrocarbons and Volatile Organic Compounds (VOCs)

Vapours arising from petrol, diesel, solvents, and industrial waste penetrate standard damp-proof membranes easily. Specialized barriers are essential on contaminated ground.

Methane (CH4) Gas Risk

Methane is an odourless, highly flammable ground gas produced by organic decomposition in landfills and boggy soils. High concentrations create severe explosion risks.

Radon Gas (Rn) Hazards

Radon is a naturally occurring radioactive gas found in rocks and soil across many areas of the UK. Uncontrolled indoor buildup leads to severe long-term health complications.

Carbon Dioxide (CO2) Accumulation

Carbon dioxide displaces oxygen rapidly in unventilated basements and ground floors. This creates dangerous, oxygen-deficient environments for occupants and maintenance staff.

Full Compliance with UK Building Regulations

Gas barrier installation is a strict legal requirement on contaminated land, so you cannot afford regulatory delays. Learn more about going beyond standard BS 8485 compliance. At Catalogue Engineering, we install all protective systems in full alignment with national codes.

BS 8485 Standards

This code governs the design of protective measures for methane and carbon dioxide in new developments. We ensure full structural compliance.

CIRIA C735 Best Practice

We strictly follow CIRIA C735 protocols for site inspection, barrier testing, and independent quality verification.

NHBC Gas Risk Categories

Our solutions meet all standards required for sites categorized under NHBC Green, Amber 1, and Amber 2 gas risk levels.

BRE Radon Guidelines

We strictly align membrane choices with Building Research Establishment recommendations for effective radon mitigation.

Types of Gas Protection Membranes We Work With

Every project demands a tailored material response. We supply and install three primary membrane types depending on your site evaluation.

Polyethylene (PE) Gas Membranes

Polyethylene membranes like HDPE and LDPE are durable and cost-effective. Reinforced with an aluminium foil core, they provide dependable protection against damp, radon, methane, and carbon dioxide on lower-risk sites.

PVC-Based Gas Membranes

Flexible and durable, PVC-based membranes offer strong resistance against ground gases and VOCs. They perform exceptionally well around complex architectural details during commercial builds.

Multilayer Composite Hydrocarbon Membranes

Composite barriers combine several protective layers into a single, high-strength sheet. They resist tears, punctures, chemical spills, and heavy fuel vapours effortlessly, representing the ultimate containment standard for high-risk brownfield sites.

Why Choose Catalogue Engineering?

Experience counts on site. With decades of practical engineering expertise spanning water management and ground gas containment, we keep your build running smoothly. Review our recent gas management case studies to see our field work in action.

NVQ Level 2 Qualified Installers

Our site team holds specialized certifications in gas barrier preparation and hot-air welding techniques. Every job is backed by recognized industry accreditations.

Nationwide UK Deployment

We move fast. Our mobile installation crews deploy directly to construction sites, commercial developments, and industrial facilities anywhere in the UK.

Technical Design and Soil Report Advice

We help you make sense of complex soil reports. Our team selects the most economical membrane setup tailored to your budget and safety needs.

Flexible and Responsive Support

Construction schedules shift constantly. We adapt quickly with clear quotes, responsive communication, and reliable site attendance.