Flat roofing Ethylene propylene diene terpolymer or as it is much more commonly and easily known EPDM. Not so much of a mouthful! This type of flat roofing is becoming much more popular. The big benefit with EPDM is that is can be manufactured in one sheet. This means there are no joints. Joints in […]
Felt Roof There are various coverings that are frequently used for flat roofing. The oldest and worst performing are bitumen based felts. There are varying grades of type of felt. These became very popular in the 1980s. This was due to the very cheap material cost of rolls of bitumen felts. These tended to have […]
Flat roofing Fibreglass flat roofing has been popular for say the last 30 years. It is very good with awkward shapes. As the bandages are easily cut to size. They are good for L shapes and lantern lights for example. They also mould well around service penetrations. The epoxy resins will also adhere to most […]
Double lapped concrete tile The double lapped concrete tile, is commonly seen on roofing along the coast and generally from the 1930’s onward. These have a suggested lifespan of 80-100 years. These do offer a roof with very long lifespans. There are more common clay double lapped tiles, on single storey bays and these will […]
Concrete roof tiles As we have said previously is expected by testing that clay and concrete tiles have similar lifespan. If not slightly longer. As concrete tiles really became popular after the Second World War had only been regularly used for 70+ years. These again have an expected lifespan of 70 years. We have to […]
The Building research establishment suggest a clay and concrete tile have a similar lifespan. Manufacturers will normally guarantee the tiles for 30 years with a 60-year life expectancy. As the BRE is the preeminent body with regards to building science and testing. This links to the British Standard as this will also fed into the […]
Life cycle replacement costings How to use the data One of the most common phrases we hear during the survey or as a result of a negotiation is that “it has been fine for the last 40 years so why does it need replacement”? This sort of comment also tends to reflects that little or […]
Life cycle There are numerous institutes who calculate life cycle data for the various products and elements of the building. The Building Research Establishment is the pre-eminent source for this data. There are further studies funded by other bodies such as the British Plastics federation and insurance companies. Windows are a good example with a […]
Given the results of our last blog. This casts an interesting phenomenon related to radon which is the effect of when you carry out the test. The laboratory analysis gave a whole house property average and called it “seasonally corrected”. Whilst no doubt there is a complex formula behind this calculation, we wanted to see […]
After the previous blog on our experiment, we thought we could follow this up with the use of an electronic radon detector meter. We read various reviews, the one with the highest reviews was the “Airthings Corentium home radon detector”. However, most of the negative reviews related to the fact the machine wasn’t working on […]