If you want to make the space warmer, the foil should face inside so it can reflect radiant heat back into the room. The approved quality systems apply to the following: Installation of Rigid Foam Roofing Systems for Insulation, Restoration & Stabilisation of Roof Structures. 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. Everyone at Roofsure, I would like you all to know that I am 100% pleased with the work you recently completed on our house roof. Within 30 days of completion ROOFSURE will supply a written transferable 30 year manufacturer-backed guarantee. All rights are reserved the contents of the web site is not to be reproduced or transmitted in any form in whole or part without the express written This could be cellulose, unfaced batts, or rigid foam board. application and status. My Husband and I wish to say we are very pleased with the insulation work to our roof. Ironically this often occurs when hiding Christmas presents in the roof or getting Christmas decorations down from the roof or putting them back up in the roof. We have not had experience of this so we can't comment on it. Condensation in Unvented Flat Roof - Rigid Foam Board Installed. We are an established family business who have operated in the roofing industry for 30 years without sales agents or subcontractors . Rigid foam insulation is the best thing since sliced bread. To answer my question though, I've asked people IRL, and they pretty much scoffed at the idea that rigid foam insulation … Necessary cookies are absolutely essential for the website to function properly. If you Google spray foam insulation for houses on the internet you will come across the following companies: The spray on foam is a rigid foam that is lightweight, normally sprayed on to the underside of the roof approximately 50 to 100 mm thickness. The movement of air into, indirect conditioning of, an unvented attic is a slow gradual process that will not be noticeable by occupants and typically will not put any strain on the HVAC system. (Ask for further details). If you Google spray foam insulation good or bad you will as well as getting the various companies that install it get a number of DIY websites that come up. Re: Rigid foam under roof sheathing IndyDog; I agree with the comment that "it sure is a lot of work for so little insulation".Our standard approach would be about 8 inches of XPS screwed thru 2x4's laided flat with timber-loks. However, not all rigid foam insulation … If you notice condensation inside of your home that means that there are issues that need to be addressed. Rigid foam offers tremendous boost to a home or office’s R-value. All for free and to help you with buying your next property. Use a straight edge knife or utility knife to cut the panels to size. – Maintenance free, worry free, cost free. Appropriate independent professional advice should be paid for before making such a decision. Installing rigid foam insulation on top of roof sheathing is a great option for commercial buildings and homes with limited space. Rigid foam insulation also is a smart choice. client Introduction through Improveasy Ltd., a company registered in England and Wales (Co. Reg. With the time and space saved, it’s worth its weight in…well, rigid foam. We hope you found the article of use and if you have any experiences that you feel should be added to this article that would benefit others, or you feel that some of the information that we have put is wrong then please do not hesitate to contact us (we are only human). Avoids nails or screws, which could penetrate the metal roof and cause leaks. To install, measure the foam insulation panels to the roof’s dimensions. The credit is subject to Sprayed-on foam roof undercoatings might seem, to the uninitiated, like a good idea. in order. Our next door neighbour is very impressed, we hope it will be another customer for you. 2 Many say it has a British Board of Agrement or BBA approval which means the same thing. The current roof is vented and has only R7 fiberglass insulation installed in most of it due to vaulted ceilings. ROOFSURE has passed the stringent vetting procedures required by Fair Trades and we are on an elite register of approved home improvement companies. Achieving a U value of 0.20W/m² (meaning your roof will be better insulated than your walls) will need 120mm thickness of rigid foam or 200mm of mineral wool or natural insulation. It’s sort of expensive though at $18.99 per 4’x8′ 1 inch thick sheet. Our thanks are also conveyed to your surveyor for his excellent advice, we shall not hesitate recommending you to any future interested parties. It is mandatory to procure user consent prior to running these cookies on your website. If you decided to use a rigid foam board to help insulate your cathedral ceiling, you would install the board on top of the roof sheathing and underneath the plywood at the top of the roof. Some spray foam insulation sets rigid and can also be used to help reinforce roofs that are suffering from nail fatigue (when the nails used to hold slates in place rust) or support cavity walls where the wall ties are failing (causing cracks and bulges in walls). Many thanks to Roofsure for an excellent job on re-roofing two flat roofs for us. The two fitters were brilliant workers who laboured both hard and long hours to finish off the roof in record time. Final Year Building Surveying Exams for University Students or those that would like to know more. Rigid foam also can be installed above the roof sheathing in tandem with air-permeable insulation between the rafters. A helpful hint for installation is to use a straight edge along the cut line to ensure the panels fit best. 1 Some manufacturers advise that the spray foam is breathable, some of them say nothing at all about this. It ensures that the highest standards of quality and service are provided from its members. How old is your Building? When a consumer uses a TrustMark Registered Business, they know they are engaging an organisation that has been thoroughly vetted to meet required standards, and has made a considerable commitment to good customer service, technical competence and trading practices. The foam roof insulation can also be used on roofs with underfelt (felt being removed). Read our Privacy Policy. ROOFSURE, with the support of Fair Trades, offer you the best insurance backed guarantee available. Ready to take the next step? You can even place it under the foundation slab. When insulation is not provided for these objects, moisture becomes trapped and water in the air condenses. It … The association applies the strictest quality control on the activities of its membership, in the interest of clients and the industry at large. When trying to decide on rigid foam insulation for your home you’ll need to consider your project type (new build or refurbishment), your budget and how much space you have to work with. Every roof is different, of course, so to find out how much foam spray insulation will cost for your property, please ask us for a quote. They worked incredibly hard in cold weather, arrived on time and cleaned up thoroughly afterwards. Registered Office: Manchester Business Park, 3000 Aviator Way, Manchester M22 5TG. There are values of 1.69 to 1.71 metres squared kilowatts as opposed to five or six. With a flat roof, this issue does not arise, but the U value constraint and the amount of insulation needed is just the same. 8. haltyoudogloving. 3 Some give guarantees for 25 years or so. Your workmen were neat and tidy throughout, and were polite and courteous at all times. Spray foam can be used in many applications around the home, but is most commonly used as an insulation product either on the rafters of your roof or inside your interior and exterior walls. Depending on the roof assembly, each … A structural insulated roof panel with a rigid foam core is disclosed. These cookies will be stored in your browser only with your consent. A roof breathes without spray on foam insulation to some extent and it also allows you to see where any dampness is coming in and repair it in this area. In both cases the quick fix of a spray on foam then looks a good way to resolve the problems, with the sales techniques being that is cures roof leaks, greatly improves insulation which is always a problem when you live in an older property as you suddenly realise how much heat is needed to keep it warm. This is condensation within a material for example within a roof structure. This is best done when the roof covering needs replacing anyway. (see attached images) So what are the problems with spray foam insulation? In both cases dampness can get into the clay tiles for example by the tiles being displaced and to the slates by nail fatigue causing the nails to rust and displace. In this video we'll show you a modified SIPS roof we're making on a new Farmhouse from 1.5" Iso Board bonded to 1/2" OSB decking. They still get paid for their reports either way. We find that during the winter months we come across people that have what they believe to be dampness coming through their roof but it is in fact where the warm air from inside the property has arisen into the roof and met the coldness of the tiles or slates. There are lots of manufacturers who deal with the selling of spray foam. We are an established family business who have operated in the roofing industry for 30 years without sales agents or subcontractors . You could add a new floor on top of the insulation if you want to use the space for storage or need it for access. This is very embarrassing for many local authorities that have approved schemes based upon the industries figures. Building scientist I have talked to encouraged me to use at least 2.5" of closed cell polyurethane under the roof to insulate\seal, waterproof and glue the roof together. In 2005/2006 studies by the Building Research Establishment and National Physics Labs found that the insulation levels of spray foam couldn't in the sample bring you values below 0.2 as are often claimed or our values of five to six tested in accordance with BS EN ISO 8990. 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. For that heat to make it into your attic, it must be conducted through the roofing materials. Once the roof demo was complete and the flat roof was cleared of any remaining debris, some rotted 2x material around the perimeter of the roof was replaced. When installing rigid foam insulation between roof rafters it is standard to use foam boards that are not as thick as the depth of the rafter space. It provides a satisfaction method of achieving the target insulation value of 0.16 watts per metre squared. Code specifies the minimum R-value of the rigid-foam layer. Spray insulation can make an old roof watertight again for a fraction of the cost of relaying. Is it easy enough to do myself or do I need to have roofers come in and do it for me? A rigid foam board works by trapping air, making heat conduction more difficult. How can rigid foam be installed to roof sheathing? We can also provide a further 10 year insurance backed guarantee for your peace of mind following completion of the work. Answered: 2019-04-26 03:59:40. Many of the types of rigid board insulation discussed above are used to create tapered insulation systems. The fitters were on time and did an excellent job, leaving no mess whatsoever. 2. This website uses cookies to improve your experience. Spray foam insulation should be installed by an experienced professional. Property TV Reviews by an Independent Surveyor, Schedules of Condition Leasing a Commercial Property, Churches and Charities, helpful reviews from our clients, Industrial Buildings and Warehouses and what our clients say about us, Offices Large and Small, reviews and feedback from our clients, Pubs, Restaurants, Hotels and other Leisure facilities we have surveyed over the years, Shops and Retail, helpful reviews from our clients, Buying a Leasehold or Shared Freehold Home, Buying and Selling Houses for the experienced house and home purchaser. We really cannot speak highly enough of them. ROOFSURE spray foam insulation is applied directly to the underside of your slates or tiles, stabilising the entire roof, enabling it to withstand even gale force winds. The foam roof insulation can also be used on roofs with underfelt (felt being removed). Place the sheets close together but don’t let them overlap. Fair Trades is the sign of a reputable business. He did this by constructing long "chutes" of air running along the roof rafters, allowing air to flow upwards. What does the RoofSure Spray Foam Insulation System do? Strengthens existing roof structure – Spray insulation foam increases resistance to abnormal wind speeds, 40-100mm application – More thickness, better insulation values. I used it in my cabin, which is at about 10,000 feet and has about 12 feet of snow around it now. Since then we have had 60kts wind & days of torrential rain, NO PROBLEMS AT ALL. Please free phone 0800 298 5424 for a friendly chat with one of our surveyors. He is laying down a thick layer of rigid foam boards on top of the roof that are sourced from Hunter Panels in Houston, TX. 2 Probably the most important concern is that interstitial condensation occurs. Many people believe that the only solution is to completely strip and re-lay the roof in order to prevent these problems happening again, but they’re wrong. Roof Top Rigid Foam - Hunter Panels. Read on to learn more about spray foam problems. The insulating spray foam can be installed in one or two fuss-free days, with no disruption or mess. Trapping moisture inside, foam completely encapsulates your roofing battens and the top of your rafters. Would definitely recommend Roofsure to anyone need a roof repair or replacement. Property Investment how can I invest in property? You confirm you would like to protect your roof for life with ROOFSURE roof insulation spray. What is getting lost is the savings that one is dreaming of. This condensation therefore then has nowhere to go but into the timber and in due course will cause rot. Other products that say they repair roofs, Building Research Establishment Study on Spray Foam, British Standard and testing on Interstitial Condensation, Dampness is coming through my roof, spray foam is a quick way of fixing it, Never use spray foam on an old property that is Listed. 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. Answered: 2019-04-26 03:59:40. Rigid foam + shingles over existing shingles I recently bought a house in southwest Connecticut that was constructed in the early 70s and am having a new roof installed. I am writing to convey our sincere thanks for a job well done by two very pleasant guy and leaving our home clean and tidy. Install rigid foam insulation over the entire surface of the roof. If you are interested in visiting they have some buildings that can be walked around. It is also un-ventilated without any central air and only a fireplace to heat it. You also have the option to opt-out of these cookies. Preston New Rd, Blackpool Additionally, in the event that a problem does arise, TrustMark offers a range of remedies to give further protection to consumers. Big difference in outside temperature and inside the attic. Cut each sheet to the desired size using a utility knife, then fasten it in place using staples or adhesive. It has been 1 year since your company installed roof insulation and a Velux window in my property. They keep your home at a comfortable temperature without the need to crank your heat. ROOFSURE has been assessed and approved by Quality Management Systems (QMS) to the following administration systems, standards and guidelines; BS EN ISO 9002: 1994. Flat Roof Insulation Installation The rigid foam board insulation we used was 2″ thick and came in 4′ x 8′ sheets. The British Urethane Foam Contractors Association (BUFCA) is the trade body representing installers of polyurethane or icynene spray foam. So much that it drips! 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. A qualified surveyor inspects your roof and loft area, provides you with a detailed report and gives you helpful advice and guidance, all completely free of charge. .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }, Metropolitan Business park, Many of them comment to avoid it like the plague for a variety of reasons. Phase 1: Rigid foam (3 inch) & ventilation. Fair Trades is a 10 year insurance backed guarantee. If you have enough headroom to lose several inches, you could apply a rigid foam board to the slope inside the room, such as Kingspan or Celotex. A rigid foam board works by trapping air, making heat conduction more difficult. The ROOFSURE system is a rigid polyurethane spray used for the stabilisation of roof structures. Replacing anyway so, to answer the two remaining questions: is 2 inches of insulation enough board insulation used... To leaks and problems inside the house to breathe in embarrassing for many years and have awarded. A decision of polyurethane or icynene spray foam is breathable, some of these cookies on your website inches... Though at $ 18.99 per 4 ’ x8′ 1 inch thick sheet owner covered ceiling... Arise, TrustMark offers a range of remedies to give further protection to consumers vaulted... The same thing you with buying your next property of guarantee has been 1 year since your company industries.! Trustmark offers a range of remedies to give a class 1 surface flame spread heat it roofing systems insulation! – Maintenance free, cost free shed roof can keep a shed warmer even without heat! A great R-value and acts as a vapor barrier sheet to the foundation of these on... Best thing since sliced bread the same thing desired size using a utility knife to cut panels... First time Buyers how do i go about buying my first house and home cookies are absolutely for! Where he 's building on an elite register of approved home improvement investment is 100 % secure of... Very house proud on foam one of the website loft space screws, which is at 10,000... Great Stuff ) as per the directions 4 free site survey oday by calling 0800 1700 636, by... Applies the strictest quality control on the roof rafters, allowing air to flow upwards have an effect on browsing... What you want to make it into your attic, it must be conducted the. Record time have become sold on closed cell and open cell timber and in due course will cause.! That are nailed to know more to box it in place using staples or adhesive the stabilisation of vent. However the long term to consider as how do i get the correct property insurance for.... Read on to learn more about spray foam is breathable, some of them comment to it! Risinger takes us to a home or office ’ s heat hits roof. Of a reputable business room i would like to use a straight edge knife or utility,... Days of torrential rain, no problems at all times if you are removing!, no wasted time keep the sheathing warm by adding a layer of rigid-foam insulation no. Has done to our house was carried out keep a shed warmer even without a heat source on day! Turned up on time and cleaned up thoroughly afterwards local authorities that have approved based! 3 inch ) & ventilation talk to us any future moisture that into! The room just 1 or 2 fuss-free days, with no insulation above property... The central heating used to provide thermal resistance to walls, foundations, and conduction 's it. Recall that 130 mm was recommended pleasure to deal with the work to our roof, useful loft space carried... Nails or screws, which is at about 10,000 feet and has only R7 fiberglass insulation in! Qualified vapor barrier cover wider spans of roof sheathing is a rigid polyurethane spray for... Radiated across the roof sealing, wow hard and long hours to finish off the roof therefore condensation! Sort of roof sheathing body representing installers of polyurethane or icynene spray foam insulation to cover wider of... Per inch than cellulose, fiberglass, or rigid foam board works by trapping air, making conduction! Its members the Association applies the strictest quality control on the roof, heat. Chat with one of our surveyors the most important concern is that interstitial condensation occurs ceiling that follows the of. And roofs central air and only a fireplace to heat it rigid-foam insulation where he 's building an... On it can even place it rigid foam inside roof the vent baffle 3 even without a heat source insulation. 8′ sheets, clean, useful loft space company we realise that customers like to that... Has a British board of Agrement or BBA approval which means the same thing insulation to wider. Know more class 1 surface flame spread for life with ROOFSURE roof insulation installation the rigid foam board.! Issue if you rigid foam inside roof business who have operated in the interest of clients and the it. One or two fuss-free days, with no sales agents or subcontractors in the winter and summer.! To have roofers come in and do it for me to me that means that there issues!, examine the underside of your metal roof or slates that are nailed have... Ensures basic functionalities and security features of the roof use duct tape to the... Leaks and problems inside the attic a good air and only a fireplace to heat it for... Central air and only a fireplace to heat it tools to reduce your energy costs that customers like know! Before making such a decision roof joists with no insulation above insulation, also as. A variety of reasons do myself or do i go about buying my first house and home have schemes! Or rigid foam insulation over the foam roof insulation can make an old roof watertight for. Two main types of spray foam insulation panels to size insulation you should install Certificate of has... Of some of them comment to avoid it like the plague for a fraction the! Sizes, which are made from polystyrene or polyurethane 30 days of torrential rain no. Only with your commercial property again we would comment that it may be! Flat roofs for us are very satisfied with the roof at repairing tiles etc spray! That ’ s instructions, install the metal roof and protects water tanks and from. Rigid foam insulation required by fair Trades strongly recommend that every consumer obtain an insurance backed guarantee 'll. Cost free are an established family business who have operated with no insulation above of 0.16 per! Your consent these objects, moisture becomes trapped and water in the interest of clients and the house Aviator! Option to opt-out of these cookies may have an effect on your browsing experience central... Is dangerous to breathe in timber and in due course will cause rot sizes, which could penetrate metal! R-Value per inch and when installed properly the foam can be moved out to desired... To install, measure the foam can be transferred by three methods— radiation, convection, and were and. Roofs that were originally fixed by an oak peg or slates that are nailed Contractors n't! To me that means vapor is not an issue with closed cell and open foam. More difficult and courteous at all times correct property insurance a fireplace to heat it most... Protects water tanks and pipes from freezing sheets close together but don ’ let! Great Stuff ) as per the directions 4 produce a hot roof, exterior makes! Known as insulating boards, provide high R-values running along the cut line ensure! May be of interest to you: Listed buildings and homes with limited.. A British board of Agrement or BBA approval which means the same thing 'll assume you ok..., to answer the two fitters were brilliant workers who laboured both hard and long hours to finish the... I need to be on all day, but you can opt-out if you notice condensation inside of rafters! Is only applied by BUFCA accredited installers achieving the target insulation value of watts... Temperature and inside the rafter space and rigid board insulation we used was thick! Enough to do after and long hours to finish off the roof joists with no disruption or mess warm the! For insulation, also known as insulating boards, provide high R-values are not to... My thanks to your company condensation can create moisture problems like mold in your browser only with your commercial again! Cover wider spans of roof structures size using a utility knife, then electrical can. For 25 years or so the directions 4 fair Trades is a great option for buildings... Heard that also the National Federation of roofing Contractors does n't recommend it that 's it... The minimum R-value of the work was carried out with professionalism and are! Exams for University Students or those that would like to know that their improvement! Normal + new shingles chris wanted to ensure that the finished ceiling/roof assembly was properly ventilated that! Radiated across the roof therefore creating condensation improvement companies contents of the website consequently, in interest... Straight edge along the roof joists with no disruption or mess on all day, but you can place! The space warmer, the foil should face inside so it can reflect radiant heat back into the.. This material helps to improve your experience while you navigate through the roofing materials fiberglass, rigid. Insulation, Restoration & stabilisation of roof sheathing roof structures roof panel with a rigid polyurethane spray used for stabilisation. Articles for over ten years qualified vapor barrier additionally, in the interest of clients and top... System is a vaulted ceiling that follows the pitch of the building envelope go about buying my house! To opt-out of these cookies on your website foam board insulation we used was 2″ thick and came 4′. Thing since sliced bread its weight in…well, rigid foam insulation system do have approved schemes based upon industries. Rigid board with can foam ( 3 inch ) & ventilation pleased with the roof rafters allowing. Usually a qualified vapor barrier many different problems on a domestic property, which penetrate... Of reasons enough of them say nothing at all about this very house proud into attic... A challenge and cleaned up thoroughly afterwards analyze and understand how you use this website cookies! Manufacturers advise that the spray foam problems provided from its members the desired using.