Browse Forums Windows & Doors 1 Aug 30, 2013 8:09 am I'm replacing a steel door on a tiny store room for an aluminium one as i'm near the sea and the previous one rusted in no time. The current one also has some mould growing on the inside surface. The room is less than 2x2m. I have the option to buy either a ventilated or non-ventilated door. Ventilated seems like a good idea, but wont it just allow more sea air into the room thus decreasing the life of my precious things inside? eg. bicycle & power tools. Graham. Re: To Ventilate or not 2Aug 30, 2013 10:03 am motherdub I'm replacing a steel door on a tiny store room for an aluminium one as i'm near the sea and the previous one rusted in no time. The current one also has some mould growing on the inside surface. The room is less than 2x2m. I have the option to buy either a ventilated or non-ventilated door. Ventilated seems like a good idea, but wont it just allow more sea air into the room thus decreasing the life of my precious things inside? eg. bicycle & power tools. Graham. Galvanised or stainless steel would be best - how about a security door? You need either a well ventilated space so that condensation is minimal, or a well sealed space to prevent ingress of damp air. Ventilation is easiest... Ed "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 Re: To Ventilate or not 3Aug 30, 2013 10:07 am Unless it is powdercoated the ali door will probably corrode as well. I lived on the beachfront at Manly for 13 years and all my gear rusted no matter how I protected it - even the back of my Hifi. It is just what you have to put up with living so close to the coast. Coating exposed metal with oil and wrapping things in an oily rag helps - (drill chucks, chisels etc ) as does placing hand tools inside tool boxes or those big plastic chests you can buy these days. Stewie Re: To Ventilate or not 4Aug 30, 2013 11:28 am Stewie D Unless it is powdercoated the ali door will probably corrode as well. Stewie Actually, probably not... Quote: Question: Does aluminium corrode? Answer: Yes. It corrodes very rapidly, more rapidly than most materials - on exposure to oxygen an oxide forms almost immediately. Oxides form on cast iron and steel, but at a much lower rate. Question: Does oxidation continue and destroy the material? Answer: No. The aluminium oxide formed on the exposure to air is a corrosion resistant oxide and under normal conditions, oxidation stops or it takes place very, very slowly. The oxidation will turn the aluminium a slight grayish colour. In the absence of abrasion and in normal atmospheres, this oxide forms a very efficient protective coat. In fact, anodizing of aluminium is merely a method of rapidly producing an aluminium oxide of greater than normal thickness and hardness, and is used where extreme protection is necessary. But how about unusual conditions? Answer: One of the conditions most usually brought up is that of exposure to sea air and water. Aluminium has a much greater resistance to corrosion than does iron or steel. A steel ship must be protected from the salt water or the corrosion of the steel is destructively rapid. Many ships are built of aluminium and, while they are painted for protection primarily against the growth of marine life, they are, on the whole, more resistant than steel to the action of salt water. Currently many large ships and tankers are built of aluminium. The US Coast Guard is replacing its steel buoys with aluminium buoys. Question: Why do some people still believe aluminium corrodes more than iron or steel? Answer: Prejudice and/or lack of accurate information. The following is from "Kent’s Handbook" on the "Corrosion of Iron Alloys", and under "The Mechanism of Corrosion". "SURFACE FILMS - Clean metallic surfaces exposed to air quickly acquire a film of oxide, which, at ordinary temperature, is thin and invisible. At higher temperatures it is thick enough to give well known characteristic colours - rust. The nature and properties of the film depend upon the composition of the metal itself and its environment. Aluminium and stainless steel, for instance, owe their high durability to the formation of a continuous and permanent file that is stable under most conditions of exposure". In general terms, aluminium is more resistant to corrosion by most common materials and atmospheres than cast iron, and far more resistant to corrosion than is carbon steel. http://www.usmotors.com/TechDocs/ProFac ... lloys.aspx "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 The HIA contract, in the term & conditions section states that "Commencment" is deemed when the drainage is started or the piers are dug or the slab is formed up (incase… 2 6177 DIY, Home Maintenance & Repair But if it is a ground level open pit, then it is not a charged system. No surprises there. The pipes have obviously been altered and there would be a reason for this.… 3 31280 I work with owner, he/she is my man on the ground and I instruct them when to visit the site and take photos and I have other tools in the bag. 4 15275 |