We recently undertook a survey on a property that has spray foam insulation to the rafters within the loft space. Applying an even sheet of foam to the underside of a roof or other space can eliminate the routes that water vapor uses to leave the house. The foam will usually cure almost immediately once it is sprayed, and certainly within a few hours. Our Test Labs compare features and prices on a range of products. No job is too big or too small for your expert team of insulation specialists. Is it active or not? Trusted Trader to find a recommended, local insulation installer. As you can see from this article we photographs and also easy to understand sketches in all our survey reports, as the feedback we have from our clients is that the sketches and photos help them understand the reports. When using spray foam insulation, you can achieve an entirely waterproof and airtight solution, but this can mean that warm air can become trapped in the space. The Energy Saving Trust estimates it costs around £300 to insulate the loft of a semi-detached house (three bedrooms). Our work force have not shown any signs of Covid-19 symptoms. Trapping moisture inside, foam completely encapsulates your roofing battens and the top of your rafters. Spray foam insulation should be installed by a professional, the National Insulation Association recommends. All rights reserved. We have been working in the property industry for many years and have been providing free property articles for over ten years. The ROOFSURE System is ideal for lining, bonding, waterproofing & insulating your home. The property that we visited was not fully declined by the lender as an outright no but the owner of the property needed to have the roof replaced in order for the property to meet the acceptable standards for the lender.

In addition if the property is leasehold we get involved in dilapidations claims and you may wish to look at our dilapidations website www.DilapsHelp.com and for disputes please got to our Disputes Help site at www.DisputesHelp.com . Over time, trapped moisture can cause serious problems. Many people have concerns about the spray foam roof insulation problems that it may cause. This condensation can saturate the wood trusses and rafters, leading to rotting wood. Despite it being a flexible product that helps retain warmth, therefore reducing energy costs, there are some crucial drawbacks to consider, such as: There are two main types of spray foam insulation: closed cell and open cell. We, of course, like to meet you at the property during the survey and we are more than happy to talk to you about the reports. Home Logic will ensure that someone has telephoned you to ensure that: We need to ask you about your communication preferences to comply with data regulations. This is actually more likely to happen if the insulation is applied to the floor of the loft (the most common location of mineral wool insulation).

So why isn’t spray-foam always the go-to insulation? Spray foam insulation is a great product. Usually, this type of insulation foam is made up of polyurethane and is sprayed into place as liquid. Other benefits to spray foam roof insulation include: Saves you money on energy bills; Air-tight seal Based on new government guidance we have now started a phased restart of our business. subscribe now to our monthly If you look at the various adverts for spray foam insulation it's very much sold as a quick fix where it is said that it can be fitted in one to two days. Interstitial Condensation is caused by there being a big difference in temperature between the inside and the outside and condensation occurring normally where the insulation meets the roof covering be it of tiles or slates. It’s not as good an insulator as closed cell foam, so you’ll need to install a thicker layer to get the same level of insulation. Spray foam roofing has become a particularly popular solution in the commercial roofing industry – but that doesn’t mean it can’t be right for your residential roof. The contents of the web site are for general information only and are not intended to be relied upon for specific or general decisions. Spray foam insulation is more expensive than other types of insulation. Spray foam insulation, also called spray foam or spray polyurethane foam (SPF), is an alternative to traditional building insulation. With the right application, and attention to the issues faced by each home, you should have many years of worry free insulation in your roof space. When installing spray foam roof insulation material, you’re creating a dry, clean and useful attic space for you and your family to exploit. The research British Standards did for BSI3788 which requires the taking of monthly values internally and externally and calculating whether there is any condensation on one or more surfaces. Roof and Insulation Problems. Incorrect Application: 3 Problems It Presents. As a surveyor we would comment that it may well be the second item condensation which you are suffering from. Badly installed spray foam may not insulate properly, can cause moisture problems, encourage insect infestations and even irritate the lungs of people living in the house.

We would comment that you should never believe figures such as this that are industry produced without testing them by an independent basis such as the BRE. If you are interested in visiting they have some buildings that can be walked around. Open cell spray foam is often used as sound insulation. There are two types of spray foam insulation: open cell, and closed cell. We are also finding that other lenders are following suit and are reluctant to lend on a property that has this type of insulation installed to the roof. Harmful fumes are given off during installation, and could linger afterwards. All you need to know about Building Surveys, Designers and Architects will they save me money or will they cost me money, Enviroment, Your Building and Garden Gnomes, Estate Agents help sell houses and work for the vendors, Have a Structural Survey to protect you against structural problems, Home improvements, builder problems and ideas for you on how to solve them, How a Surveyor values a property, Chartered Surveyors and Regulated Valuers, How Chartered Engineers and Building Engineers can help you, Structural Surveys and How We Can Help You, Traditional and Non-Traditional Houses and Mortgage Problems. Older properties have a slightly different construction to modern properties. 4 We have heard it claimed to be environmentally friendly. If you want a more sustainable product then take a look at Icynene Spray Foam Insulation – one of the most state-of-the-art insulation methods available today. A 2 meter safe distance will be maintained at all times. The interstitial condensation is meant to be a problem with this type of foam insulated roofs however we couldn't find any evidence to prove this. Thank you for your continued support. Icynene doesn’t settle or degrade over time like many other types of insulation, so you’re guaranteed long-lasting effects too. document.write(new Date().getFullYear()); On contact, the foam steadily expands to up to 100 times in size to create an effective insulating layer of hardened foam. This can cause a few problems, including the following: ● The area has not been covered adequately causing gaps or without the required depth.

This is being done through the year in the winter and summer months. How old is your Building? If spray foam is applied to the underside of your roof slates, you are effectively removing this ventilation gap. If you currently have a mortgage and are considering having spray foam insulation installed then it would be wise to check with your lender that it is an acceptable improvement to them otherwise you may be in for an unwanted surprise and work needing to be done to the property if they were to discover the insulation. Thank you for your continued support. Which era was it built in? | H&S Surveyors Ltd | Privacy Policy | 6 Queen Street, Newton Abbot, Devon, TQ12 2EF | (01626) 335008 | Registered No. As the name suggests, spray foam insulation is a liquid foam which is sprayed into position and sets into an insulating layer. The required 270mm thickness of loft insulation is often higher than the joists, so you can’t lay boards on top. Valuations and how much is the building worth? Spray foam will usually last in excess of thirty years; therefore, any foam that starts to fail before this is likely to have resulting from an incorrect mix of materials. Applying an even sheet of foam to the underside of a roof or other space can eliminate the routes that water vapor uses to leave the house. If you are convinced that dampness is coming through your roof you need to take a second to consider is it really coming through your roof or is it condensation. However open cell does allow more air to pass through, enabling more effective ventilation.

3 It creates a dry, clean, useful loft space. It's time to find out... Let’s start off with the good. Another concern is that if spray foam is applied to the underside of the roof slates, it can mean that it is impossible to remove individual slates, and subsequently repair or replace them. Spray foam insulation should be installed by an experienced professional.

We are a credit broker and not a lender and have a facility with a panel of lenders | Home Logic is a trading name of Home Logic UK Ltd. Spray foam is a liquid mixture of isocyanate and polyol resin that is forced together under pressure. Almost all of the problems associated with spray foam roof insulation comes down to incorrect application. Many talk about problems that they have had with not being able to repair their roof when it is leaking. It is becoming increasingly popular across the UK as it can provide more insulation in less space than the traditional wool or insulation boards, such as Celotex, and can also help to reduce drafts and make the property more air tight. If you’d like some more information on the importance ventilation or how to work around it, contact our team today. To avoid empty spaces in your spray foam insulation, have it installed by an experienced professional with the right equipment. Improperly applied spray foam often contains voids, where the foam does not completely cover. It rots roofs, people have told me. 06777327. In buildings with existing foam insulation, termite shields, termiticides and regular anti-termite building maintenance can reduce the chances of this problem. Older spray foam insulations such as UFFI (urea formaldehyde foam insulation) may crumble and break down over time. How much spray foam insulation costs depends on the thickness, the type (closed or open cell), the size of the area you want to insulate, and how it’s installed.

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