Insulation your roof or attic might seem as a quite straightforward job but as most DIY projects, a first-timer is best to follow a guide that will help them avoid any pitfalls.
First of all, it is crucial that you take into account your own personal safety. You should never sacrifice or compromise your personal protection equipment (PPE). This includes a dust mask, a pair of gloves, a boiler suit and knee pads. Experts advise on also using crawl boards instead of standing on the loft joists or ceiling floors.
The first step involves choosing your insulation. This depends mainly on your preference for a warm or cold roof space. For a cold roof, best stick with insulation at joist level to stop the heat from escaping. If you’d prefer a warm roof, you’ll need to insulate between and under the rafters of the roof itself. One of the most popular forms of roof-insulation is the blanket insulation – which is easy to work with.
The recommended depth of blanket style insulation (this can be glass or miner wool) for a loft is around 250 to 270 mm. If you have previously insulated your roof, you should check the depth, because the standards for recommended insulation depth have changes in recent years.
As far as cost is concerned, the cheapest option, as always, is DIY. There are a lot of guides on how to insulate your roof or attic yourself online. However, some type of roof insulation require additional help by professional, as they can be achieved only with a specialist equipment. Generally, the warm-roof insulation option is the most expensive but can provide a greater level of heat retention in the long-turn. Also, this means that you can store temperature-sensitive items (cold roof tend to get very hot in the summer).
Some things worth remembering:
Always cover the pipes with pipe insulation, otherwise the low temperatures might make your pipes burst during the winter.
Insulation should go up the side and over any tanks. You can also a special tank insulation – just don’t insulate under the tanks!
Electric cables need to be left exposed in order to not overheat. They can be raised above the insulation. Pay most attention to shower cables, even though the risk of fire is quite low.
Don’t forget to insulate the loft hatch by attaching a polystyrene block insulation to its upper side. Ensure any gaps around it are sealed!