Loft Insulation Dunfermline

Housing built for two industries

West Fife was built around coal and the naval dockyard, and both left behind distinctive housing that is still lived in today. Knowing which one you are in tells you most of what a loft needs.

The former coalfield villages

Cowdenbeath, Kelty, Lochgelly, Oakley and the smaller villages around them are full of housing built for miners between the 1920s and the 1950s. Much of it is terraced or semi-detached, built to a handful of repeated patterns, with simple open roof spaces and shallow-to-moderate pitches.

These are straightforward, good value insulation services to deliver. The roof space is usually a clear rectangle, access is easy, and most already carry a base layer from an earlier insulation programme. What we typically find is 100mm laid decades ago, now settled and compressed to nearer 70mm, which is a long way short of where it should be.

Because that base layer is already there, topping it up to full depth is quick and cheap. It is among the best value insulation work available anywhere in Fife, and it cuts heating costs without any disruption worth the name.

Rosyth and the dockyard houses

Rosyth is different again. It was laid out as a garden city for dockyard workers from 1915, and much of that original stock survives: low-density cottages and terraces, built to a deliberate plan, with generous roofs.

They are pleasant houses to work in and they were built before anyone insulated anything, so what is up there now was retrofitted at some point and is worth measuring rather than assuming. Roof coverings vary across the estate, and a few have had alterations that changed the ventilation.

Modern Dunfermline

The town has expanded fast, and Duloch, Halbeath and the newer estates east of the town are largely post-1990 housing with factory-made trussed rafter roofs. Those are good roofs and awkward lofts: the W-shaped webs divide the space into compartments, so getting insulation properly into every bay takes longer than the floor area suggests. Never cut or notch a truss to improve access; they are engineered structural components.

What we install, and how deep

Loft insulation slows the heat escaping through the roof, keeping it in the rooms you pay to warm. It is the cheapest insulation measure available to most homeowners, and professional insulation installers will almost always recommend it first. Better heat retention means lower energy bills, steadier indoor temperatures and a home warmer in winter and cooler in summer.

The recommended depth in Scotland is 270mm of mineral wool. That is guidance for an existing home rather than a legal requirement; current building regulations set their own standards for new work, extensions and conversions. Because ceiling joists in older homes are often only 100mm deep, reaching 270mm means one layer between the joists and a second across them.

Types of loft insulation

• Mineral wool, including Rockwool and glass wool, the standard specification, and of all the insulation materials the best value for most lofts. The type of material matters less than the depth and the detailing.
• Sheep wool and hemp: natural fibre that handles moisture well, suited to older stone properties.
• Multifoil: a slim reflective quilt for restricted depths and rafter-level work.
• Rigid PIR board: for room in roof insulation in a converted loft.

We do not install spray foam insulation, and we have written about why. Applied to the underside of a roof it can trap moisture against the roof timbers, hides the structure from inspection, and has caused real difficulty for homeowners at the point of sale or remortgage.

How do I know if my current insulation is enough?

Take a ruler into the loft and measure the depth in several places, not just beside the hatch. Insulation settles, and anyone who has walked across it has flattened it. If you are under 150mm the house is not well-insulated by current standards, and topping up is almost certainly worth it to reduce energy costs. If boards are hiding the layer, lift one.

Should old insulation be removed?

Usually not. Dry, clean, evenly laid existing insulation can be topped up, which is cheaper and works just as well. Removal is justified where material has been contaminated by vermin, soaked through a leak, or degraded. Treat any quote that assumes removal as standard with caution. Our guide to removing old loft insulation goes into it properly.

Can I still board the loft for storage?

Yes. If you use the loft as a storage area, a raised boarding system holds the deck above the full depth. Boarding screwed straight onto the joists crushes the layer beneath and wastes most of what you paid for, as well as creating a condensation risk by trapping warm moist air under a sealed deck. Keeping the eaves clear matters for the same reason.

What we are actually looking at

Most lofts fall into one of these. The survey is about working out which, and what it needs.

Loft insulation grants in Scotland

• Great British Insulation Scheme: closed to new applications on 31 March 2026. Pages still offering it are out of date.
• ECO4: the ECO4 grant, delivered by energy suppliers under the Energy Company Obligation to low-income and vulnerable households.
• Warmer Homes Scotland: for households in or at risk of fuel poverty.
• Cosy Kingdom: Fife's own local energy advice partnership, worth a call for area-specific help.

Other insulation measures worth considering

The loft gives the biggest cut in heat loss for the least money, so we start there. Depending on the property, other insulation upgrades may also be worth it.

• Cavity wall insulation: realistic across most of the post-1930s Fife stock, which does have a cavity.
• Internal wall insulation: for the older solid-walled properties with no cavity to fill.
• Underfloor insulation: for suspended timber floors over a ventilated void.
• Room in roof insulation: for a converted loft with no open roof space left.

Proper insulation reduces energy consumption across the whole house, and energy-efficient homes hold their heat rather than chasing it. Which insulation solutions suit your home depends on the building, not a price list. We are fully insured, we go into the loft space before quoting, and the price comes to you in writing.

Frequently asked questions