Insulation - Common Questions

Unless you are a fully competent roofer you will not know everything about insulation.  Here we've got our expertise together and produced a list of the most commonly asked questions about insulating your roof.  From the cost of insulation, to its life expectancy, to finding a reliable roofer that will install it, you will find our solutions here.  

Although we are the experts, there are always new and interesting roofing issues that crop up.  if you have a question that we haven't thought of, then please do tell us using our contact us form and we will get back to you as soon as we can.  In the meantime, please enjoy our website.

Why should I insulate my roof?

The majority of your homes heat is lost through the roof.  Without insulation up to a third of the heat produced by your heating system will be lost through the roof.  Putting insulation in your roof can save up to 20% off your energy bill.

Whats the difference between Rapid Loft Board and Rapid Rafter Insulation?

Rapid Loft Board is designed for use in cold roofs i.e. open lofts, and will be installed horizontally on the top of your ceiling joists.

Rapid Rafter Insulation however, is designed where you are converting your loft space into a habitable room to create a warm roof system. Thus this type of insulation is installed on top of the inclined rafters of the property. The tiles are then fixed on the outside of this. Rapid Rafter insulation thus creates a true warm space in your loft.

What are the Building Regulations with regards to re-roofing and insulation? 

When you are re-roofing more than 25% of your property you will normally require Building Regulations approval.

You will also need to make provision to upgrade your insulation in line with the latest regulations.

Our Rapid Loft Board and Rafter Insulation have been selected to enable you to do this easily.

Does Insulation have an Energy Performance Certificate?

No. The insulation itself doesn’t have an EPC. However, improvements to the thermal efficiency of your property by installing additional insulation will improve the overall EPC of your property.

How long can I store Insulation for? 

The packaging should not be considered adequate for outdoor protection. Ideally, boards should be stored inside. Otherwise, they should be stacked clear of the ground and covered with an opaque sheet or weather-proof tarpaulin. Boards that have been allowed to get wet should not be used. Please do not stack boards more than 3 pallets high.

Can I get government funding for upgrading Insulation?

Yes and No. The new Green Deal lists insulation as an eligible measure. However, this is no longer through direct funding but as a “loan” set against the energy savings that the insulation brings. You should contact a Green Deal Provider or Assessor who will guide you through the Green Deal process. Green Deal Providers confirmed at this time include the major energy utilities e.g. EDF. In addition it is likely that some known companies will also be involved e.g. Marks & Spencer, B & Q, Builder Center.

The government is however incentivising the first tranche of upgrades, so you may be eligible for some cash back too.

What is the payback on Insulation? 

Insulation is generally regarded as being one of the most economical ways to improve the comfort in your home, and to reduce energy bills and carbon emissions. With the arrival of the Green Deal this becomes an even more attractive option, as the outlay is recouped through the saving on your utility bill. Your Green Deal Advisor will be able to estimate for you the expected payback period, although we expect this to be within a five year period.

What is the environmental impact of Insulation?

The environmental impact of phenolic and PIR insulation materials have been independently rated within the BRE Green Guide 2008. Materials are rated on an A+ to E scale where an A+ rating is given to materials with the lowest environmental impact. PIR insulation is generically rated ‘A’ providing a lower environmental impact than extruded polystyrene and some cellulose glass and stonewool solutions. Our phenolic rafter insulation achieves an A+ rating.