How Much Spray Foam Insulation Do I Need In Attic?

attic insulation


Spray foam is one of the commonest insulation materials that are used for insulating attics in many properties out there. This material is available in two types, Open Cell and Closed Cell. The former lets moisture enter and you can see the leaks. For attics, Closed-cell spray foam is not a good option, although it is better to maintain optimal moisture at the subfloor levels. For attics and walls, Open-cell spray foam can be a good choice – given that it lets the space have some air circulation and prevents the buildup of moisture within. This material ensures the best insulation for attic spaces.

Spray foam insulation for Attics – A Good or Bad Choice?

Is spray foam insulation good for attics? The insulation material has its pros and cons. It is eco-friendly, and does allow a space where pests can nest in and thrive in the times to come. It comes with Class I fireproof rating for attic areas as well as other open cavities in properties.

It never retains any water, which is exactly why it does not promote the growth of mildew and mold in case there is any leakage of roof into the attic. It prepares an air seal, and can insulate the attic area. It can be useful in reducing energy bills every month.

For attic insulation, Spray foam can help create a space that is semi-conditioned. It insulates the deck of roofs in attics that are not vented.

How to Insulate an Attic with Spray Foam Insulation Material?

How to insulate an attic with spray foam


How to insulate an attic with spray foam? 

You have to perform a few steps:

·         Get out old insulation material - First, you have to remove the existing insulation from the attic space that you would like to insulate again.

·         Scrub the space - Next, scrub the area to remove any residues of the old insulation material. Make the area as clean and plain in texture as possible.

·         Get control of the foam spray - Now, spray a bit of the foam into a newspaper or some other similar surface. This will give you an idea of how to control the flow of the spray gun.

·         Use water on the drafty areas - Mist the attic’s drafty area before the foaming, so as to speed up the curing.

·         Spray foam onto the attic space - Once you have got a hang of the flow control, spray the foam onto the surface in one clean motion.

·         Get rid of excess foam - Remove any excess foam with the help of a serrated knife, and make the surface uniform in texture.

·         Allow expansion of the sealant - Fill the openings up half full, which can let the sealant expand well.

·         Mist the drafty spaces once more - Mist the drafty part again, to make curing happen faster.

Location: United Kingdom

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