Roof Space Ventilation In Lofts And Attics

There are normally two types of underlay used.

Roof space ventilation in lofts and attics.

The most popular roof ventilation solution is to have soffit vents providing cool fresh air into the loft from a low level and a tile vent or ridge vent at a high level for the warm stale air to exit the building. If you see dampness or frost you need better roof ventilation and some attic vents. High resistance hr which has a vapour resistance greater than 0 25 mn s g or low resistance lr which has a vapour resistance less than or equal to 0 25 mn s g. Designed to improve ventilation roof vents really do work and they come in a variety of shapes sizes and designs to suit every loft and project.

Manthorpe felt lap vent. Lowering the temperature in the attic can help reduce air conditioning energy costs and roof deck temperature optimize the service life of a roof covering and minimize ice damming. With square foot living space at a premium many homeowners turn to their attics for a little extra room when the attic becomes part of the home to be heated and. To lower attic temperatures and to remove excess moisture.

All cold roofs should have some form of roof ventilation in place to prevent warm air condensing in the loft. Grab a flashlight and inspect your attic during the winter. Unfortunately these slates are exceptionally thin and flat and the mortar torching pointing prevents any air beneficial movement. However if you ve added anything that could have made the loft area cooler such as increasing loft insulation or reduced the effectiveness of the existing ventilation such as fitting insulation that partially or completely blocks existing vents then you ll probably need additional ventilation.

For the best results place roof ventilation near the roof s peak and soffit vents in the eaves. Roof spaces should be ventilated this prevents the build up of condensation off heat from the house water vapour from the shower and bath s etc and also any water storage tanks in the loft space should be fitted with a lid. Attic ventilation serves two main functions. To provide adequate ventilation to a roof space you first need to be aware of the roofing felt underlay that is currently in place if at all and its type and condition.

Warm air that escapes living space also carries moisture that will condense on rafters or roof sheathing. Damp in roof space as a general rule of thumb slated or tiled roofs without underslaters felt tend to breathe and ventilate through natural gaps in the slate. Simple roof vents such as those by easyvent and manthorpe are highly effective at ventilating roof spaces and they start at just a few pounds each.