Warm roof insulation for houses

Websters spray foam insulation could be your solution if you are facing the potential cost and inconvenience of re-roofing. Call today on 0800 581 247 to see how we can help you. We have over 30 years experience of insulating house roofs and employ our own teams of highly skilled engineers.

Duratherm is the Websters approved foam insulation for under tiles / slates, under-felt and breather membranes. It meets building regulations and seals your roof from draughts and wind driven rain all in one application.

Most houses have 100mm fibre at ceiling level, so using Duratherm at 105mm (typical rafter thicknesses) can bring the U Value down to 0.18. This is known as a hybrid roof, and using Duratherm allows you to meet Building Regulation, without extending the battens in most cases. By ensuring that the ceiling is sealed around any pipes etc to stop moist air seeping into the loft space, you can reclaim your loft by boarding out for precious storage space.

With Duratherm installed in the roof, you won't get any more draughts through tile gaps, loose tile debris, slipping tiles or slates, or condensation forming on the underside of the roof covering.

There is no need to fit any additional ventilation aids with Duratherm, as its BBA certificate allows you to spray direct to tile, slate, sarking felt, sarking boards, and also breathable felts.
The roof does not need to be ventilated, so the roof space is warmer meaning the water pipes and tanks can’t freeze, even in extreme winters like the ones we have recently experienced.

DURATHERM®  is an HCFC AND CFC FREE two component, 1:1 ratio, rigid foam system which when processed through suitable spray machinery (Graco, Gusmer, Glas-Craft) will produce a rigid foam of approximate density 35kg/m3 with exceptionally good compressive strength. Service Temp range -15oC to 70oC. When tested to BS476 part 7 the foam achieves a Class 1 surface spread of flame.

DURATHERM®  is used for:

• Retrofit insulation / stabilisation for pitched / flat roofs
• New build insulation
• Loft conversions
• Commercial buildings
• Ocean going yachts / canal barges

DURATHERM®  can be used to upgrade the thermal performance of roofs, floors or walls of any property, to meet current building regulations

The best solution for insulation to any existing or new build house roof, barn conversion, loft conversion etc...

Testemonial:

"My loft now looks a lot better, it looks like a new loft that has been freshly painted. Your prices are very fair and reasonable, and compared to some of the other companies, who seemed a bit like rogues and con men.

We are very pleased indeed with the quality of service and workmanship from start to finish."

Mr and Mrs Widdowson, Doncaster.

Click the film strip to see spray foam being applied

The Following photographs were taken whilst spray foam insulating the outside of a large house roof in oxford, by our engineers. Notice how the foam easily follows the curve of the roof where other products such as rigid board insulation would not...

We can find fast, efficient and economical solutions to most potential insulation requirements, using this most versatile of products. It has a wide range of uses and applications and is equally suitable for new build or older constructions, as it bonds to most surfaces.

Without insulation a normal roof is a poor barrier against heat loss and so creates unnecessarily high fuel costs and leaves plumbing unprotected against frost damage.

Comparison Of Insulation Products:
PITCHED ROOF
(Tiles, Tile Battens, Felt)
		U-Value 0.16	U-Value 0.20
MANUFACTURER \	PRODUCT	THICKNESS	THICKNESS
INSTALLER		(mm)	(mm)
WEBSTERS INSULATION	WEBTHERM - no air gap req	140	110
KINGSPAN	THERMAPITCH TP10 ZERO 0DP + 50mm air gap req	140	110
CELOTEX	TUFF-R ZERO GA3000Z + 50mm air gap req	140	110
ROCKWOOL	ROCKWOOL ROLL	250	200

Polyurethane Foam is the most effective insulation available and has many benefits beyond savings on heating (or air conditioning/cooling) costs...

It can help keep wind driven rain or snow out, eliminate frozen pipes and helps to prevent the slippage of slates or tiles.  It can eclipse the need for a new roof!

Straight under slates or tiles

If you dont have any kind of felt under your slates or tiles its not a problem! Our system is sprayed directly underneath them getting in all the small gaps without affecting the shape of your roof, due to the foam expanding inwards by following the path of least resistance.

Code for Sustainable Homes

A legislative framework has been introduced that will bring in mandatory ratings under the Code for Sustainable Homes for all new-build housing. This is part of the government's package to increase the energy efficiency of new buildings with the aim of the future strengthening of the Building Regulations. All new homes will have to be zero carbon rated by 2016.

The code measures the sustainability of a new home against categories of sustainable design, rating the 'whole home' as a complete package. The code uses a 1 to 6 star rating system to communicate the overall sustainability performance of a new home. The Code sets minimum standards for energy and water use at each level.

Code 3 is the current main objective, the main criteria under scrutiny being the air tightness of a building. A building has to be air tight to achieve the code 3 status, meaning every inch of the roof and walls must be sealed somehow.

Fortunately, the Webtherm system has the added benefit of making a roof or wall space air tight by providing a full continuous membrane of spray foam to almost any surface. The closed cell structure of the foam we use guarantees to keep the air inside the building and preventing draughts from getting in.

Note: In 2006 the Government announced a 10-year timetable towards a target that all new homes from 2016 must be built to zero carbon standards, to be achieved through a step-by-step tightening of the Building Regulations.

Call us free now on 0800 581 247