What insulation should I use for my new roof?

What insulation should I use for my new roof?

Insulating a roof is also an important job to consider when undertaking any form of roofing work.  Without roof insulation you could loose up to a quarter of your heat through the roof.  This is due to the fact that heat rises. 

Insulating your roof will comply with Building Regulations:  these, (Part L) lay down guidelines for the insulation levels of the roof.  For cold roofs the most common insulation is mineral wool laid between the joists of the loft floor.  You will need 270mm depth of insulation material for the best effect.  If you are building a warm roof (ie a loft with living space) then the insulation is best provided by insulating boards fixed between the rafters directly under the roof tiles.

Insulation will also add value to your property and reduce your energy bills.  So, a good investment all round!

Here at Redland, we've launched two new insulation products to our roofing product range that will help you to insulate your home:

Rapid Loft Board

Its manufactured from high performance PIR (Polyisocyanurate) foam which provides excellent thermal properties
Its available in 100 mm or 140 mm thicknesses to allow maximum flexibility
It has an aluminum outer layer on both sides for added protection
Its integrated 8 mm OBS Board enhances the strength and walkability (high compressive strength)
It meets current u-value requirements laid down by Building Regulations when specified in the correct configuration
It comes in a convenient 1170 mm x 570 mm size (0.67 m² per board) for incredibly easy installation and to fit through a typical loft hatch
Its easy to lay and secure using standard tools and fixings

Rapid Rafter

Its manufactured from ultra high performance Phenolic foam for excellent thermal properties
Its available in 140 mm thickness, which meets current u-value requirements laid down by Building Regulations without the need for additional insulation
It has outer glass fleeces with reinforcement grid for added strength and protection
It has a convenient tongue & Groove construction, making it easy to lay and secure using standard tools and fixings
There are a full range of accessories available for sealing, including sealbands, tube sealants and tapes
It has a range of pipe penetrations to ensure maximum flexibility and integrity

Insulation is designed to be installed by the same contractor who is completing your roofing project, or at least a good roofing contractor will offer you the service.