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SEMPATAP THERMAL has been in use in the UK and Europe for over 30 years and has been successfully installed in 1,000’s of flats and houses by Local Authorities, Housing Associations, private Landlords and homeowners. SEMPATAP THERMAL is a remarkable material which, when applied to the internal surfaces of external walls, substantially lowers heat loss, dramatically reduces condensation and immediately makes rooms warmer and more comfortable.
SEMPATAP THERMAL is only 10mm thick and is as simple and easy was wallpaper to apply. There is hardly any mess or disruption and it can be installed without having to vacate the property. SEMPATAP THERMAL can be decorated with virtually any finish – emulsion, wallpaper and it can even be tiled. It has a life expectancy of 30 years and can be redecorated time and time again with no problem.
SEMPATAP THERMAL was originally developed for energy conservation as an economical solution for reducing carbon emissions and lowering heat loss. The specific application was improving the thermal performance of solid wall homes which historically had been considered difficult to insulate because of disruption to the occupant or very expensive systems, hence the reason these properties had attracted the name “Hard to Heat Homes”. Of the UK’s housing stock, 36% are solid wall construction, over 9 million made up of solid brick, solid stone, pre 1944 timber frame and non-traditional PRC ie, concrete properties. In these type of properties heat loss through the walls is high – 45-50% as a consequence heating bills are higher in comparison to an equivalent cavity wall property. Unfortunately, there are a considerable number of families who are in fuel poverty and as a result cannot afford to heat their properties. This leads to problems of condensation which will give rise to black mould on the walls and ceilings. Mould is a serious health risk and combined with cold, damp conditions results in an unhealthy living environment.
SEMPATAP THERMAL is the economical solution to overcome all of these problems – it is quick to install, can be applied with the resident in situ and immediately reduces the heat loss giving warmer walls which present a surface on which moisture will not condense.
SEMPATAP THERMAL does not reduce the room size significantly, there is therefore no need to re-site and extend electrics and plumbing or reduce and refit floor coverings ie, carpets, vinyl, laminate which would be necessary with some internal solid wall insulation materials/methods.
Areas of Application
SEMPATAP THERMAL is applied to the internal face of the external walls of a property, it is not necessary to apply the insulation to internal party walls. It can be installed in any type of solid wall house including solid brick, solid stone, concrete etc, however, is equally beneficial on cavity wall flats and houses, particularly north-east facing bedrooms.
SEMPATAP THERMAL is also particularly effective on the ceilings of flat roofs extensions where there is little or no roof insulation. The material is also excellent for alleviating cold bridge problems caused by cantilever beams with walkways, ring beams, balconies and bridging from Finlock gutters.
Dormer ceilings and mansard roofs present a major problem as it is virtually impossible to insulate economically using traditional methods. As a consequence they become a magnet for any condensation which then results in black mould everywhere. SEMPATAP THERMAL is the simple answer to this problem which is quick and easy to install.
SEMPATAP THERMAL has also been used in Schools, Hotels, Park Homes, Canal Boats, Village Halls, Caravans, yachts and trains. SEMPATAP THERMAL not only has outstanding thermal properties but it can also be used as acoustic insulation and will substantially reduce noise problems. SEMPAFLOOR can be used for problems of condensation, heat loss and acoustics on floors.
How to apply Sempatap Thermal
Mould growth on walls and ceilings must be treated first in accordance with MGC Specification.
Remove any wallpaper and prepare the walls and ceilings as though you were going to decorate. SEMPATAP THERMAL is normally only applied to the inside of the external wall. If the plaster on your wall is very old and porous, apply a coat of SEMPATAP ‘A’ PRIMER and allow to dry.
If your skirting is less than 10mm wide on the top edge you will need SEMPATAP SKIRTING CHANNEL which is a white plastic track and will give a neat finish to the bottom edge of SEMPATAP THERMAL. Apply a liberal coat of SEMPATAP ADHESIVE to the wall using a notched SEMPATAP ADHESIVE SPREADER, notched trowel or medium pile roller. Only apply the adhesive to one drop length area at a time. For subsequent lengths apply the SEMPATAP ADHESIVE not only to the wall but also to the vertical edge of the previously hung length of SEMPATAP THERMAL.
Apply SEMPATAP THERMAL to wet adhesive on the top of the wall at the junction with the ceiling then roll out and smooth using the SEMPATAP SPATULA. When SEMPATAP THERMAL is in the required position, apply firm pressure using the SEMPATAP SPATULA, smoothing out any air pockets. Continue application of SEMPATAP THERMAL by applying subsequent lengths until the wall is covered but leaving a narrow gap of 1-2mm between each drop. For application to flat ceilings, dormers and mansard roofs, apply the SEMPATAP ADHESIVE to the ceiling surface, leave for 10-15 minutes to go tacky then apply SEMPATAP THERMAL as per instructions above. It is advised that application to ceilings, dormers etc is a two man job.
To view our application instructions, please click here.
SEMPATAP THERMAL is a unique insulation material made of an open and closed cellular construction based on natural latax with a woven fiberglass face for strength and rigidity. The insulation material is water vapour permeable which allows the walls to breathe.
SEMPATAP THERMAL has been tested by the National Physical Laboratory and figures produced by the Building Research Establishment show considerable energy savings. On a standard 9” solid brick wall with a µ of 2.1 the application of SEMPATAP THERMAL will result in the µ being lowered to 1.49, a reduction of nearly 30% for an insulation material only 10mm thick. SEMPATAP THERMAL has also been tested by the Building Research Establishment for fire resistance under BS 476 Part 7 and in France Centexbel Rapport d’analyse achieving Class M1.
SEMPATAP THERMAL has been the subject of five EST Innovation Programmes, which independently demonstrate the product’s effectiveness. Winner of the Gold Award in the 2009 Green Apple Awards for the Built Environment and Architectural Heritage, was runner up in the 2008 National Energy Efficiency Awards and received a Certificate of Merit from the National Home Improvement Council.
The effectiveness of SEMPATAP THERMAL was independently evaluated on a scheme in Wolverhampton using a Thermographic survey by IRT Surveys Ltd which showed considerable reduction of heat loss on solid wall properties after the application of SEMPATAP THERMAL.
Roll Size: 1m wide x 12.5m long
Thickness: 10mm
Composition: Latex foam with coated woven fiberglass face
Weight/roll: 26kg
Weight/m2: 2.08kg
Thermal Resistance: 0.194m2 K/W
Resistance of untreated wall: 1/2.1 = 0.476
Resistance with SEMPATAP: 0.476 + 0.194 = 0.67
U-value with SEMPATAP: 1/0.67 = 1.49 W/m2K
Permeability: 3.88E-07 Kg/s.m.Pa
Mean Density: 186.4 kg/m3
Life Expectancy: 30 years