MouseMesh Pest Proofing Mouse Mesh Air Brick Vent Cover, Flame retardant ABS frame 105mm x 255mm x 13mm, Brown, 95mm x 245mm

Product Information

If the majority of a joist is sound it is possible to fit Joist Repair Plates to the missing bearing ends or even splice on new parts using the Timber-Resin Splice system, Find out more about repairing timbers in our project here. As with all condensation-related problems the only treatment is ventilation. By allowing the movement of air under the floorboards the air temperature should regulate, so that there are no cold spots to encourage condensation to form. This can be done very simply with 4 inch (100mm) drain pipes laid side by side as extension tubes for your vents.

Fine grade stainless steel mesh with plastic surround. Can be either glued or screwed in place, available in Small (245 x 95mm), Medium (245 x 170mm) or Large (245 x 245mm). Also Effective against Masonry Bees It is not suitable for proofing against rats and squirrels within medium and high-pressure areas but will work against unestablished populations. If unsure, please upgrade to our solid aluminium vent guards that offer 100% protection against any pest. Our mouse mesh range includes options in copper, stainless steel& galvanised. We have it by the full width, smaller width rolls and by the cut sheet.This rot can eventually cause the joists to become soft at the bearing ends, usually in or on the support walls, as these tend to be the coolest areas with the least air circulation. Two methods of easy installation. All vents have holes drilled into the corners to allow you the screw the covers into the wall, or you can use our range of Fix All adhesives to glue the cover to the wall. Due to the fine 2.5mm hole mesh, our product will also stop a wide range of flying and crawling insects including bees, wasps and spiders.

Please note mesh cannot legally be used (UK – current GAS Safe and HETAS regulations apply) on vents where the vents are required to feed a combustion appliance or the room where there is a combustion appliance. However if the joist is soft and spongy, or so flaky that your screwdriver pushes into the timber easily, then the joist is rotten below the surface. Once this level of decay has set in, new timbers need to be fitted. A special sleeve can be used in these cases. It is shaped like a ‘Z’ and works like a periscope – funneling air down below the floorboards, from a hole above the internal floor level, see the images below. For more information on the causes of condensation and for a guide on how to solve condensation problems please see our condensation project. What Happens Without Ventilation? The Causes of Rot in Timber Floors

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At best you will get some damp or mould forming because of the condensation, a problem we explore further in our damp or mould project. This is a problem when the central heating goes off at night and the room cools, causing the floor boards and joists to be colder than the humid air around them, in consequence allowing condensation to form on the wood. In a job in Forest Hill, London, where the client wanted a new timber floor to replace the old, damaged, Victorian floorboards, we lifted the existing floorboards to find the timber joists had rotted in the far corners of the room. You will also need to use an air duct to ensure the airflow goes right through from outside to under the floor without dissipating into the wall cavity.