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OSB Expansion and contraction do I leave a gap?

Expansion and contraction in OSB is not a problem ( I think) As far as I know, no gaps needed in 18mm T+G OSB the expansion is built-in. The lower part of the T+G this doesn’t meet the other side; however, the top use so I don’t understand how that works! I know they are moving over to a new under T+G soon, but that’s all I know. I’ve tried reading the BS EN 1995-1-1:2004+A1:2008 Eurocode 5:  ( 145 pages but went to sleep) Tongue and groove do I leave expansion joints The expansion per meter if it gets damp is recorded at.03mm so it’s not much we always leave a perimeter gape of 10 mm and push the bards together lightly; some never go tight as the edges are fragile and brake and bind. I’ve covered roofs over 100 m² and never had a problem, that said we don’t put rigid roofing material on the roof its normally rubber. I get lots of complaints from people that have had GRP glass reinforced plastic flat roofs installed. They constantly complain about the banging noise that comes from the contraction and expansion. Nobody seems to know if this is because of how the boards have [...]

Blog, GRP, Roof Decking
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Roof survey near me

When I go to my London flat roofing blog I see lots of people search for roof survey near me if they were only to put in the postcode so I knew what area they were in this would be very helpful. When we are carrying out roof surveys in and around London and enquire comes through we may be on the road doing other roof surveys and the possibility that we can just pop in because you are local then becomes extremely convenient not only for us but for the customer. Mainly the cost of doing roof surveys come from travelling to and from our office and the customer’s property. Inspecting inside a flat roof survey Writing reports on flat roofs Writing the reports for roof surveys and putting all the information together probably takes up 40% of the time spent doing a roof survey. At London flat roofing we not only do roof surveys on flat roofs but we also do roof surveys on pitched tiled roof’s. The insurance companies that insure private properties are now more frequently asking for a report on the condition of any flat roof and also pitched roofs mainly tiled roofs or slate roofs. If [...]

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Flat Roof Condition Report for Insurance

Flat roof condition report for insurance. Insurance companies are now asking for a flat roof condition report before they will renew your household insurance. London Flat Roofing’s surveyors carry out numerous flat roof condition reports over a year. Each condition report gives extensive details as to the type of flat roof and its general condition. Our surveyor will attend the property, gain access to the roof, take photos and video and supply a written report, generally within 48 hours. I have attached a PDF of a flat roof condition report, showing some of the information that you may find in one of our flat roof condition reports. Flat Roof Condition Reports for Insurance. Reports and site surveys. Now that the insurance companies are clamping down on poor maintenance Haveing a report on the condition of your flat roof is becoming more and more necessary. Book a Flat Roof Condition Reports for Insurance now at London Flat Roofing The cost of a flat roof condition report will depend on access to the roof. If access to the roof is easy; the cost could be as low as £150 + VAT. Generally speaking it’s all about access and health and safety; on some roofs we have to erect [...]

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​Flat roof reports for renewing your insurance on your house

When did you last have your flat roof report for insurance? In your insurance renew letter it’s becoming common to be asked if you have a flat roof and when was it last inspected. More and more now, I am receiving phone calls from house owners that require a report on their flat roof to give to the insurance company. We attend the property, gain access to the flat roof and take photos video and measurements and compile a report on the condition of the roof. When doing a flat roof survey for insurance, I mostly find that we can give a good bill of health. We can make recommendations and give our opinion on how long we think the flat roof can last if maintained. If you are interested in a flat roof report for your insurance company or even for your peace of mind, please call or email over your details. If you have any other information such as measurements and photos, then please attach. Generally speaking its good practise having a professional roofer to a yearly or by yearly inspection of your flat roof. After the first year or two of inspections, we can normally fall into a routine as we [...]

Blog, Buildings Insurance
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