Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.
How to ventilate an attic uk.
Warm roof insulation this type as the name suggests leaves the attic space warm as the insulation is laid between the rafters against the underside of the roof cover.
Normally we only think about loft ventilation when we have an issue.
Vents come in various styles.
Grab a flashlight and inspect your attic during the winter.
Why loft ventilation is so important.
Types of ventilation there are a couple of different types of ventilation.
Think about your laptop or your refrigerator they have built in fans to keep them cool.
Sometimes though problems manifest themselves later on like condensation or stifling heat either in the home or loft area during the summer months.
Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed.
Intake vents located at the lowest part of the roof under the eaves allow cool.
As a certified licensed home inspector it is not correct to say too much ventilation is bad for an attic unless rain moisture is getting in.
Perhaps you ve gone to get your suitcases out of the loft only to find they re covered in mould or you ve noticed condensation on the roofing felt or roof timbers etc.
Air flows in through the soffit vents and out through the roof vents.
Attic ventilation this short video takes us through some of the basic benefits of roof ventilation what it does and why you might need it.
It s a more difficult type of insulation to install correctly as you can t put the insulation tight against the underside of the roof cover because you need to leave a ventilation gap.
If you see dampness or frost you need better roof ventilation and some attic vents.
Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed.
By ventilating your attic it will help keep the mechanics in your attic your water heater and your hvac system cool.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.