Two Roof Assured installers, two inspirational projects

Volsen UK, Sarnafil approved installersWith over 3 million homes in the UK due to be built in 2014, the proposed Bank of England’s ‘Funding for Lending’ Scheme and ‘Help to Buy’ starting to take effect, the horizon looks brighter for first time buyers.  Otherwise the trend to ‘improve not move’ continues, with consumers wanting to increase the value of their property but also to improve their lives at home. This paints a positive outlook for the flat roof market as a sustainable business opportunity for roofing and home improvement companies.

Roof Assured is part of the Sika Sarnafil brand, one of the world’s most successful manufacturers of Single Ply roofing membranes. Sika Sarnafil is primarily concerned with large scale commercial projects, with Roof Assured focussed on domestic flat roofing market serving homeowners through their approved installer network.

Becoming a Sika Sarnafil registered installer offers opportunities across the domestic roofing market, a territory which comes only with being associated with a market leading product that is so often requested and encouraged by specifiers and architects.


Jordan and Sam Dearlove, partners Volsen UK, have been Roof Assured installers for three years and have built the business on the quality of the product (Sarnafil membrane), quality of installation (training and technical support) and an entrepreneurial approach.  Jordan Dearlove said:  “What our customers want is peace of mind they have a roof that will last and a good job has been done. They want approved, professional installers and quality products. Simple as that.”

He continues:  “The fact that we can get everything from one place;  vapour control layers, insulation, edge trimmings, fastenings and membrane also gives our customers the single point guarantee they want.”

Sam Dearlove sees the brand as the BMW of single ply roofing membranes: “It’s obtainable at different levels; at an entry level if you just want a porch or garage roof or you can buy the 6-series equivalent with some of the architectural, award winning homes we work on.  Like a BMW you are getting the best even on the smallest from the tiniest porch to the largest roof span, for installers large or small.”

Sam and Jordan have a clear vision :  “We know where we are going.  We must be doing something right.  It’s a mix of having the right product and working a 24/7 week!”

 Case study 1

1960's home remodelled and renovated with Sarnafil flat roof installation

Twin Palms in Beaulieu is a mid century modern house inspired by the design of the original Twin Palms in Palm Springs, California, once the home of Frank Sinatra.  It was first designed in 1965 and then built in 1970.  In 2011 the house was reconstructed in an extended and updated version of the same mid century style.  It was a complex project using some of the best available materials for construction to create a house of Passivhaus standards (Grade A EPC rating).

By March 2012 carpenters had created a new roof on the structure up to and including the OSB timber deck.  The roof is approximately 260sq m  on two opposing 5 degree north/south pitches with rainwater from one running onto the other … also included is a 2m sq ‘box’ at 35 degrees to support solar thermal panels and a harvested rainwater tank.  So although the main areas were straightforward enough there were some technical difficulties to overcome.

By July 2012 two large integral balconies were ready to be overlaid with insulation and the Sarnafil single ply membrane. Jordan Dearlove, Volsen UK, said: “For the project we also used the Sarnatherm insulation which means that both this and the roofing membrane are covered by the Sarnafil 15 year single point guarantee.”

The architect homeowner said:  “The entire programme of roofing works was carried out with due diligence, on time and within budget.  Jordan and Sam (Volsen UK) have many endearing talents and put the client first when dealing with the project brief.  All their contractors were polite and professional. I recommend them and the Roof Assured product for any single ply roofing membrane project that a homeowner or owner developer may have in mind”

Case study 2

1970's home and garage with Sarnafil flat roof installation


The Streamhouse, Hampshire

Another Volsen UK project is hidden among the trees only a few doors down from Twin Palms.

‘Stream House’ is a 1970’s split level four bedroomed house,  designed by Sir Basil Spence, and the original showhome on The Hummicks estate.

As well as adding a detached garage, the owner started on a project to refurbish and modernise while retaining the integrity of the original modernist design.  The existing large monopitch  roof had a fibreglass covering and no insulation.  The owner, whose background as a surveyor on large retail developments, was very familiar with the high performance of the Sarnafil membrane on commercial installations and could see its potential for this property.  He said:  “I  knew I wanted the Sarnafil membrane for Stream House.  As well as its aesthetic appeal and high performance, it was a cost effective option.  Jordan and Sam Dearlove had also been recommended to us by a neighbour for the quality of their work”.

Volsen UK installed approximately 300sq m of roof on the existing garage, the new garage plot and the main house including insulation, vapour control layer and the Sarnafil membrane with standing seam detail.

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