Damp Proof Membranes
Filed Under Internal Damp Proofing · Tagged: damp course, damp proof, damp proof course, damp proof courses, damp proof membrane, damp proof membranes, damp proof paint, damp proofing, damp proofing walls, damp specialist, damp walls, rising damp, roofing membrane, wall damp, waterproof membranes, waterproofing, waterproofing system
Damp Proof Membranes – An Introduction

Detail, Newton 503 Mesh fixed with Newlath Plugs
A damp internal surface can occur from moisture rising from below ground level through old porous brickwork. This may be due to the original damp proof course being damaged, breaking down through age, or displacement due to slight movement of the property over years. Also in my older buildings, the external ground level has over the years risen to above the original slate or felt damp course. Rising and penetrating dampness cause a number of detrimental affects to internal finishes such as staining and discolouration, peeling paintwork/finishes, blown plaster, salt and oil contamination etc. Damp proof membrane solutions would be the recommended solution to these problems. [Read more]
Penetrating Damp
Filed Under Advice · Tagged: cellar damp proofing, damp cellar, damp course, damp proof, damp proofing, damp proofing cellars, damp proofing walls, damp specialist, damp specialists, damp treatment, damp walls, diy damp proofing, rising damp, wall damp
How Do I Deal With Penetrating Damp?

Newton 503 Mesh being installed
Penetrating damp creates damp walls and can cause a number of detrimental affects to internal finishes. It is always imperative to diagnose the cause of the dampness, for instance in a damp cellar it will usually be because the external ground levels are higher which means that earth bearing against the structure makes the wall damp. Above the ground buildings in exposed locations or that have porous building substrate can suffer from moisture penetration.
Newton Damp Proofing Systems are a range of High Density Polyethylene and Polypropylene membranes which are moulded into a stud formation. The damp proof membranes prevent any moisture and moisture vapour
Damp Treatment
Filed Under Advice · Tagged: damp, damp course, damp proof, damp proof course, damp proofing, damp proofing walls, damp specialist, damp specialists, damp treatment, damp walls, dampness, penetrating damp, rising damp, wall damp

Here Newtonite is being installed to treat a damp wall
Damp walls result in a number of detrimental effects to internal finishes such as staining and discolouration, peeling paintwork/finishes, blown plaster, salt and oil contamination etc. Being a Damp Specialist Company with some 160 years worth of trading, know-how and experience behind us means that Newtons have developed damp treatment products that provide total protection to the internal finishes against these wall damp associated problems. [Read more]
Damp Proofing Walls
Filed Under Internal Damp Proofing · Tagged: cellar damp proofing, damp cellar, damp course, damp proof, damp proof course, damp proof courses, damp proofing, damp proofing walls, damp specialist, damp treatment, damp walls, diy damp proofing, penetrating damp, rising damp

Rising and penetrating dampness causes staining and discolouration
Newton Damp Proofing Systems are a range of High Density Polyethylene and Polypropylene membranes which are moulded into a stud formation. The membranes prevent any moisture and moisture vapour and associated salts and contaminants within the structure affecting the internal finishes by providing a physical barrier between the old surface and the new finish. Whether installed by a specialist or if you opt for DIY damp proofing this will significantly prolong the longevity of the internal finishes whilst the damp proof membrane still allows for natural evaporation of moisture from the damp walls and unhindered movement of air to take place in the gap provided by the studs of the membranes. [Read more]
Damp Specialist
Filed Under Welcome · Tagged: damp course, damp course specialist, damp diy, damp houses, damp injection, damp mould, damp proof, damp proofing, damp rot, damp specialist, damp treatment specialist, damp walls, penetrating damp, rising damp, wall damp
John Newton & Company – The Damp Specialist

Here Newlath 2000 is used to treat severe damp in a Listed Building
John Newton & Company is the longest established independent specialist in damp proofing in the UK. Our products are specified by Architects, Surveyors and Structural Engineers for use across the construction spectrum from new developments to historic buildings including conversions, renovations and refurbishments. Our complete range of high quality membranes for use on damp walls act as a permanent damp treatment for problems such as penetrating damp and rising damp. [Read more]
External Damp Proofing
Filed Under External Damp Proofing · Tagged: damp proofing walls, damp walls, exterior wall, External Damp Proofing, external wall, lime render, wall damp
Can Newton Membranes Be Used Externally?
Used externally Newton Membranes provide a damp proofing solution, a waterproof support for rendered finishes and effective protection to exposed buildings, porous and deteriorated surfaces against wind driven rain, salt laden air, wall damp and general penetrating dampness. By acting as an external wall coating, it can provide as a solution for damp walls internally.

Newton 503 Mesh Used Externally
Once in place the membrane forms an exterior wall coating, which protects the structure against any further penetrating dampness whilst the membrane stud profile maintains an air gap in to which residual moisture can evaporate and where ventilation can take place. [Read more]


John Newton & Company is the longest established independent specialist in damp proofing in the UK. Our damp proof membranes and ancillary products are used in all sorts of properties - from refurbishments to historic buildings, including the London Underground System and the Houses of Parliament. John Newton & Company is a family business, and we pride ourselves in offering the best service possible to our customers. We are also a market leader in basement waterproofing solutions. For our full range of basement waterproofing and damp proofing products please visit