delta membrane

Delta Membranes Case Study – Fernroyd, Bowden

Building Products Index Ltd February 27, 2018 Waterproof Membranes, waterproofing Leave a Comment

View the Delta Membrane entry on BPi

Visit the Delta Membrane website

SPECIFICATION

NBS Specification J40 (Clause 290) Flexible Sheet Tanking/ Damp Proofing.

BS 8102:2009 Type C Drianed Protection.

SYSTEM COMPONENTS

Koster Polysil TG500 Anti Lime Coating/Surface Primer,
Delta MS 500,
Delta PT Delta,
MS 20 Perimeter drainage channel
Delta Dual V3 Sump Pump

Overview

The scope of the project was to renovate a problematic damp residential basement to create a habitable dry living space. The property is a magnificent Victorian detached residence, built around 1850. The accommodation is extremely versatile and extends to around 5569 sq ft. The property’s extensive basements consisted of: hallway, three chamber rooms, storeroom and wine cellar. The Victorian property in a sought after setting, in Altrincham, Manchester.

Altrincham’s bedrock consists mainly of Keuper Waterstone (a type of sandstone). The project required sympathetic renovation, the property retaining a wealth of impressive original features including deep skirting boards, cornicing’s, mouldings, windows and shutters. Timberwise’s team were called upon to investigate the damp issues and to suggest remedial options which would incorporate BS 8102:2009.

All basements should be constructed (or retrofitted) to cope with groundwater levels up to the full retained height of the basement. Structural waterproofing preserves the integrity of a structure whilst ensuring the usefulness of the building for present and future use.

Methodology

Where specified all basement waterproofing projects carried out by Timberwise are designed and installed in accordance with the current British Standard BS8102:2009 “The Code of Practice for Protection of Below Ground Structures against Water from the Ground”. The Delta Cavity Drain Membrane System was installed allowing water to continue to penetrate through the wall where the flow could be controlled within the air gap between the Cavity Drainage Membrane and the wall. Perimeter drainage channel manages the flow of the water through to a suitable drainage point or sump pump. Prior to installation of the Type C Cavity Drain Membrane, an application of Koster Polysil TG 500 anti-lime surface primer was applied to all new concrete surfaces. When new concrete forms there is a risk of excess free lime and mineral salts leaching out during the curing process. When a cavity drainage system is used in this type of application, a pre-treatment of the concrete is used to reduce the risk of free lime build up and blocking of the drainage cavity and perimeter channel.

Ventilation Systems

The Waterproofing Design Specialist recommended that adequate ventilation and heating must be specified in the overall basement conversion in accordance with Part F of the Building Regulations.

Sump Pump System

A Delta PowerMaxx battery back-up and AlertMaxx2 Wi-Fi enabled alarm was installed to complement the system. A Delta Dual V3 sump pump system was installed to keep the area underneath the building dry and to prevent it from flooding. The sump pump’s job is to pump the water out of the pit and away from the building so the basement stays dry.

Case study review

Timberwise transformed what was a damp unused basement into a dry habitable living area. The customer was left fully satisfied with the end result. Having installed the system Timberwise provided the customer with a 10 year guarantee giving long term peace of mind.

Delta Ground Gas Barrier System

Building Products Index Ltd November 28, 2017 Waterproof Membranes, waterproofing Leave a Comment

View the Delta Membrane entry on BPi

Visit the Delta Membrane website

Brownfield land is a word specifically used to describe land which has previously been used forcommercial or industrial purposes with suspectedor known contamination (such as pollution or soil contamination) or land which has been in close proximity to pollution, hazardous waste or soil contamination.

The Government pledged in April 2017 to unlock Brownfield land to accommodate our housing shortage. Local authorities across the United Kingdom under new legislation now have to produce and maintain up-to-date, publicly available registers of Brownfield sites available for housing locally. These new registers will help house builders identify suitable Brownfield sites instantly, therefore unlocking land for thousands of new homes.

MemTech Gas Membranes

Delta Membrane Systems Limited is delighted to launched a new range of Gas Membranes, our MemTech Gas Protection range are BBA Approved and work in compliance with Building Standards (BS8485:2015, BRE 211.2015, CIRIA 665, CIRIA 735, CIRIA 748 and NHBC Standards) suitable for the protection against dangerous gases and chemicals when building on Brownfield and contaminated sites.

Our MemTech Gas Membranes work in harmony with our waterproofing/damp proofing membranes offering complete reassurance.

MemTech M1

MemTech M1 is a flexible, loose laid proprietary gas barrier for use on sites with Radon (RN), Carbon Dioxide (Co2) and Methane (CH4) ground gas. M1 will also protect against the ingress of Hydrocarbon Vapours where it is separated from the ground e.g. above a block and beam floor. The barrier is manufactured by an extrusion/coating process which

incorporates a two layer low density polyethylene membrane with a polypropylene reinforcement grid and an aluminium foil core. The membrane is extremely flexible for ease of installation and is robust enough to cope with site conditions.

Delta Membrane Systems Ltd. Tel: 01992 523 523
E: info@deltamembranes.com www.deltamembranes.com

MemTech M1 meets requirements of BS8485:2015 and BRE 211: 2015 Radon: Guidance on Protective Measures for New Buildings and Code of Practice for the Design of Protective Measures for Methane and Carbon Dioxide Ground Gases for New Buildings.

MemTech R1

MemTech R1 is a flexible, loose laid proprietary gas barrier for use on sites with Radon (RN) ground gas. The barrier is manufactured by an extrusion/coating process which incorporates a three layer, low density polyethylene membrane which is reinforced with a polypropylene reinforcement grid. The membrane is

extremely flexible for ease of installation and is robust enough to cope with site conditions. R1 meets the requirements of BRE 211: 2015, Radon: Guidance on protective measures for new buildings.

R1 Gas Barrier will also protect against damp
and therefore will act as a DPM in
accordance with CP: 102:1973, section 2 and BS: 8000-4:1989, and National Building Regulation Approved document C.

MemTech LGB

MemTech LGB (Liquid Gas Barrier) is a ready for use specialist styrene butadiene latex based liquid applied gas membrane. It offers a simple, continuous passive gas prevention barrier against the ingress of Methane, Carbon Dioxide, Radon, Ground Gas, VOC, air & Moisture into buildings. LGB also acts as a waterproofing membrane complying with C2 and C4 schedule 1 of the Building Regulations 1991 for England and Wales. MemTech LGB meets the requirements of

BS8485:2015.

MemTech Void Vent

MemTech Void Vent is a cuspated HDPE core with a geotextile filter/separator bonded to a single side, in either 25mm or 40mm depth. MemTech Void Vent provides a means of ventilation when used in conjunction with an approved Gas Protection Barrier, in accordance with the recommendation(s) contained within NHBC Guidance and BS8485:2015. MemTech Void Vent 25 is optimised for maximum strength and performance. MemTech Void Vent 25 is independently tested and verified by UKAS accredited bodies.

MemTech Titan

Titan is a multi-layer flexible polyethylene membrane (a Gas and Hydrocarbon Barrier), with a unique core component which is designed and manufactured to provide a barrier to the most aggressive chemicals and to comply with current guidance on Hydrocarbons. Manufactured using the latest extrusion technology, this membrane is suitable in applications that are affected by Hydrocarbons. There is a common misconception that monolithic polyethylene barriers, such as HDPE and LLDPE are effective barriers to resist Hydrocarbons. This is an incorrect assumption, as Hydrocarbons will readily permeate through monolithic polyethylene barriers. Titan is specifically designed and manufactured to perform as a Methane, Carbon Dioxide, Radon, Ground Gas, VOC, air & Moisture and Hydrocarbon protection system. Titan complies with the latest codes of practice as published by BRE, CIRIA (C748) and BSI (BS 8485:2015). Suitable for use as Ground Gas/Hydrocarbon protection for NHBC GREEN, AMBER 1, AMBER 2, and RED site characterisations.

For help on the MemTech range of Ground Gas Protection, please contact Delta Membranes’ Technical Team on 01992 523 523 or email: info@deltamembranes.com.

damp proofing membranes delta membrane gas membranes MemTech Gas Membranes MemTech LGB MemTech M1 MemTech R1 MemTech Titan MemTech Void Vent waterproofing

Catalogue highlights basement pumps and drainage

Building Products Index Ltd January 24, 2017 Waterproof Membranes, waterproofing Leave a Comment

View the Delta Membrane BPi entry

Visit the Delta Membrane website

Transforming damp and dingy basements into comfortable living spaces is becoming more and more popular – thanks in no small part to the extensive range of products offered by Delta Membrane Systems. Many of these products now feature in a new catalogue from the company.

Over the years Delta has earned a reputation for being the ‘one stop shop’ for all
things needed in basement refurbishment and new-build. This includes a wide range of sumps, pumps and control technology – all of which is featured in the new brochure.

This 36-page publication also features the company’s drainage channels and fittings, as well as giving a standard pump overview, and details of pump performance.

Useful information on pipework, commissioning and installation is given along with service and maintenance procedures. All the data is further enhanced by two-dimensional diagrams, three-dimensional cut-away photography, and performance graphs showing the technical information on many of the electrical products.

Frequently asked questions are also listed along with the company’s responses.

The expert team within Delta Membrane Systems is known for giving sound advice and solving potential problems. This catalogue gives a ready reference to enhance the expertise available from the company. Download now, click here! Or view on our website here…

basement pump Basement pump and drainage catalogue delta membrane drainage channels

DualProof – Pre-applied membrane

Building Products Index Ltd September 26, 2016 Membranes Leave a Comment

View the Delta Membranes entry on BPI

Visit the Delta Membranes Website

A new durable watertight solution for below ground structures. A pre-applied membrane that protects against groundwater ingress as well as gases and chemicals.

DualProof is a fully and permanently bonded, composite sheet. It is applied before the steel reinforcement is fixed and the concrete poured. It consists of a sealed two layer highly flexible PVC membrane laminated with a non-woven PP-fleece. DualProof is pre-applied and is installed without heat or open-flame, overlapped and sealed with butyl tape and special adhesive for detailing. The new PP FiberTex Technology gives the DualProof its unique bond and connection to the concrete. The PP-Fleece integrates into the concrete when poured giving a strong mechanical bond once cured.

Areas of use

DualProof can be applied horizontally as well as vertically and is used in all applications where structures require protection against groundwater and seepage. Typically used in the following constructions:

New build basements
Foundations
Tunnels
Garages
All other concrete constructions below ground

Advantages of DualProof

Waterproof, damp proof, gas proof and gives concrete protection against chemicals
Tough and resistant, quick and easy to install, high compound shear strength
Can be installed in every season regardless of temperature and weather condition
No need for complicated welding equipment and specially trained staff, overlapping can be easily secured with Delta Double-sided Tape and detailing around corners with CEM 805 adhesive
Prevents any lateral water migration between the waterproofing membrane and the structural concrete
Seals small cracks in the concrete
Can be used in saltwater conditions
CE marked and DIN certified

Market comparisons

Products on the market	DualProof
Adhesive or chemical bond • At low temperatures not sticky • At high temperatures too soft • Protection sheet needed • Very slippery when wet • Bonding surface very sensitive • Cannot walk directly on surface	Mechanical bond • Not temperature/weather dependant • No protection sheet needed • Does not become slippery when wet • If dirty it can be hosed and brushed clean • Foot traffic will not affect the fleece

Mechanical bond products• Complex – 6-8 system components • Fleece bonded to Polyolefin membrane by grid of adhesive. • Risk of vapour pressure blisters and water tracking, via capillary action, along fibres at interface with concrete. • Various sizes for different applications	DualProof’s mechanical bond• Simple – 2 components • The PVC and fleece are manufactured together as one unit due to a highly advanced process. • The fleece is water resistant, easy to clean. • No risk of blisters or water tracking between layers. • The fleece integrates into the concrete • One size for all applications

delta membrane Dual proof durable watertight solution flexible PVC non woven PP fleece PP FiberTEX Pre applied membrane steel reinforcement

Delta Membranes – Every Penny Counts

Building Products Index Ltd February 29, 2016 Dampproofing 1 Comment

View the Delta Membrane entry on BPI

Visit the Delta Membrane Website

Over recent years there has been increasing pressure on budgets, and cost-effective construction techniques have been the order of the day. The same goes for refurbishment projects, which is where Delta Membrane Systems offers a wide range of products that help with the damp proofing of internal walls, particularly in basement projects.
Too often, basements are left redundant or as ‘dumping grounds’, but the truth is that they can be functional, useful spaces that can enhance the emotional and monetary value to a home.
Delta Membrane Systems has long argued that using its package of products designed specifically for basement refurbishment will bring a basement back to a habitable condition, at a cost-effective price.
A typical product for walls is the Delta MS-500 which is made from high density polyethylene. While the membrane itself is just 0.6mm thick, it features 8mm studs on the wall-side and it is these studs that create the drainage channel – allowing up to 135 litres/minute/metre of incoming water to be drained – well in excess of the likely demands.
Incorporating 20mm studs, Delta MS20 is another membrane in the collection that offers impressive operational characteristics. These include a compressive strength rating of 150kN/m2, and high capacity drainage to easily cope with the worst of likely conditions. It can be used in applications where extra drainage capacity is required, such as deeper structures, or where a larger flow rate is likely.
Thanks to the membranes, all water entering the property drains down the wall into a channel that leads to a sump unit hidden below ground floor level. It is then pumped to a suitable drainage outlet which might be a soil vent pipe, or simply to an outside drain or soak-away.
Managing the damp ingress, rather than trying to prevent it altogether, is the sensible and economic option for basement refurbishment, and Delta Membrane Systems is a one-stop-shop for all the materials needed.
Delta Membrane Systems prides itself on the extensive collection of products it has on offer to overcome the problems of water ingress into a property – both existing and new-build. However, the service does not stop there as the company is happy to share its knowledge and offer technical advice wherever needed.

damp proofing delta membrane delta MS500 high capacity drainage high density polyethylene

← 1 2