If you want to know how to fit loft insulation in a way that helps you save the maximum amount of money, then look no further than here.
If you haven’t got your loft insulated at all, then do it as soon as possible. If you think your loft hasn’t been insulated for some good few years, then consider doing it again, as products have moved on and now have far better insulating properties than before.
And the great thing about loft insulation is that it is generally a DIY job; you don’t usually have to have professional help. So not only will it save you money, but it shouldn’t cost an arm and a leg to fit.
First things first.
Loft insulation works by stopping the heat escaping out of the top of the house. So the insulation materials trap the heat and don’t let it pass. Bear this in mind when fitting your particular type of insulation material. Don’t stretch it too much, or squash, and make sure it fits properly into those awkward corners.
Insulation materials vary a lot and their abilities to retain the heat are being enhanced all the time.
Most is made up of mineral fibre, or fiberglass, which ranges in thickness from four inches to eight inches. You should always choose rolls which are eight inches thick, as they are more efficient, and because they come as rolls, they can be handled easily, cut and placed easily into position.
Insulation materials also come loose, for example vermiculite, and the great advantage with these is that they can be poured between joists, and into tight spaces, to the desired levels, where sometimes rolls might not fit properly.
For any person contemplating doing their own loft insulation, it’s best to pop down to one of the local DIY stores and take some time choosing the material that will suit you. And even get some of the assistants to help you as well, because all help and advice is very useful when choosing the correct material for your property.
And once you have your materials ready, do a few basic things before you start.
First, think about your loft. Everyone takes it for granted there will be a hatch, but not all lofts are so well blessed, or have a hatch that a human might fit through. So, make sure you can access your loft properly and if you reach it via using a step-ladder, then make sure that it is secured tightly.
Once in the loft, don’t attempt the usually tight-ropewalker routine around the roof joists. Individual joists are not always able to support your weight and if you slip, you could be right through into the room below.
So, it’s best to place a wide plank, or stout board across say three joists and spread your weight properly.
Next, don’t try to peer through the gloom whilst working. Get a light rigged up into the loft. This will enable you to work safely and to see the corners and crannies which need special attention.
Check whether your loft has good enough ventilation, as too little, once you’ve rolled out your insulation material, could cause condensation. Always make sure there is a good flow of air in the attic above your insulation.
And before you lay down the material, make good any repairs in the ceiling, as all your work could be for naught if you don’t repair holes and cracks. Also, have a quick look around to see what else is in the attic, say maybe a water tank, which should not be covered of course. Pipes are okay, but you don’t want to be covering electric cables, and there is a slight possibility that their heat might cause a fire when covered. It’s unlikely, but you’d best err on side of caution. Cables should be checked for any signs of wear, then, re-routed above the installation material. Call in an electrician to do this, as a qualified person needs to handle such things. Finally, just check that there is no insect infestation in the loft space: no rodents, birds, or flies that might welcome a nice warm home.
When it comes to estimating the amount of insulation material you will need, measure your loft space and work with the manufacturer’s instructions. That’s why a trip to your store before you start is a good idea, as they will be able to help you calculate the amount you need.
Now, a word about safety. We’ve mentioned not prancing about the loft like a circus performer, but you also have to remember that insulation material, because its made out of glass fibre, or dust producing materials, can be a irritant to your throat and your skin. So, when you’re working with such materials, cover your skin with overalls and wear a face mask. And dispose of any waste properly.
When it comes to the process of laying the chosen materials in your loft, always read the manufacturer’s instructions thoroughly. Begin by ensuring that your loft is free of dust and debris, or anything that might catch on, or impede the material.
If you’re using rolls of material, then start at the eaves and work towards centre of the loft (rolling them out from the eaves). Do not stretch, or force them too much; just ensure that they are pushed firmly into the appropriate crevices.
Once the roll comes to the centre, cut it as appropriate and marry it up to a joist, or another roll. The trick is, is to create a carpet of fluffy insulation material which fits as snugly as possible. Cut and trim the material to fit around those odd protuberances and don’t forget to create a snug fit for the loft hatch.
If you’re laying loose fill insulation material, bear in mind that this stuff will pour out of any gaps, so you have to make sure that the joists in effect create a tight box like structure (especially under the eaves), which can then be filled with the granular material.
Two things to bear in mind with such materials. Sometimes, the average joist height of between four to six inches is just not deep enough to create the depth of material, so you might have to extend the height of the boards. In a large loft, this could entail quite a bit of time and some considerable expense. Secondly, loose fill material could get blown about in a windy loft, so ensure that there is adequate ventilation, but not a tornado.
Okay, that’s it. Spend some time insulating your loft and it will save you money; there’s no doubt about that: experts reckon on at least £250 a year for the average house.
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