Lofts shouldn’t be damp or smell musty and I’ve found that such issues are usually a sign of a roof leak, ventilation problem or other faults that will need investigating. Can I Install Vents To a “Warm Roof”? Roof ventilation has always been critical in letting a house or building ’breathe’ and ensure that roof spaces don’t gather moisture and condensation with unpleasant and possibly costly consequences. However, in modern houses with more efficient central heating systems and highly effective insulation methods, temperature differences created between living and roof spaces can present significant roof and eaves ventilation challenges. Drawn to colder roof spaces by convection, condensed water vapour can lead to rotting timbers, rusted metal fixtures and felt damage from mould growth. A “warm roof” is when the insulation is placed directly under the roof tiles and the loft is usually the same temperature as the rest of the house. It is retrofitted to reduce condensation in the roof space. Simple for anyone to fit from inside the loft by simply inserting between the overlaps of underlay. Is it unusually calm with no breeze? Wind is needed to flush out moisture via vents. If it’s unusually calm, wait a day or two and see if the condensation clears on its own.

Felt lap vents are another great way to help ventilate your loft or attic. Rather than creating an opening in the roof itself, felt lap vents just create an opening in the roofing felt. Roofing felt is a membrane between the tiles and the actual loft. While the tiles on the top of a house allow some air through, felt lap vents allow that air to make it through the roofing felt. This is particularly important if your house has roofing felt made up of a non-breathable membrane. At ERoofing, we carry the versatile and effective Manthorpe Felt Lap Vent, one of our best-selling products. One issue that can arise is “ice damming”. Many homeowners and professionals who are familiar with these lofts issues know of this problem.But roof vents aren’t as simple as just drilling some holes in your roof and calling it a day. To make sure that the roof is still waterproof, you need to use specially designed roof vents. But there’s no reason to fear, there are several different approaches to roof vents and you’re sure to find one that suits your roof. Tiled Vents For roof spaces that require more than the 15000mm/m² the spacings half for each additional 5000mm/m²

There are many benefits of roof vents. From reducing condensation to improving temperature control in the property, they’re admirable for many reasons. Two others are the following: Energy costs are reduced Step two: Work out the number of vents required, asking how many vents it would take to provide the same amount of airflow: The dry ridge system is an innovative style of ventilation, combating the traditional method of using mortar and sand during the ridge and hip tiles installation.

This type of vent may also be referred to as an eaves vent. These vents can be found installed in many modern houses and are typically built into the soffit. The result is continuous 10 – 25 mm ventilation at a low level around the eaves of a property.

There are a wide variety of roofing vent types available. Here is a brief overview of the most common. Roof tile ventWe have moved into this house a couple of years now and we are having a lot of problems with the heating. Changed to gas after the first year and fixed some of the plumbing issues but we are getting a lot of condensation, mould on some of the ceilings in the corners and the house doesn't really retain any heat. Have you recently upgraded your loft insulation or boarded out your loft? Your house may be warmer but your loft will be colder and more susceptible to condensation, try adding a few loft vents to improve ventilation. Also known as an ‘over fascia vent’, fascia ventilation allows air to pass into the roof space between the felt and fascia board. Roof vents are just as effective but must be fitted from the exterior of the roof, and access equipment such as scaffold might be needed. A cold roof is the traditional roof design. This type of roof has dominated loft spaces for decades and continues today. In the modern-day, they are commonly insulated at ceiling level using fibreglass insulation laid across ceiling joists. So, what is the point of roof ventilation? Well, it’s helping your roof “breathe” and reduce weather from affecting home functions. In this guide, you’ll learn what roof vents are, what the different types of roof vents are and more to help you install the ideal roofing vents on your home.

During my 17 years working as a roofing contractor, I was often asked questions about loft condensation; here are the answers to the most common questions: Cavity wall insulation keeps homes warmer for longer, and as warm air holds more moisture than cold air, you may notice a slight increase in loft condensation after installing cavity wall insulation. Why Am I Experiencing Loft Condensation In The Summer, When It’s Warm? Slate roof vent tiles are also ideal for easy installation and the range of designs available. They can blend in nicely with slate tiles. So, if you would like something that suits the slate-style roof, consider these.I'm thinking I need to sort this out before I make the attic even colder with the extra insulation. Would felt lap vents like these: