10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation

Brilliant, cost-effective solution for loft condensation problems. I had a big issue with condensation dripping onto the stuff I was storing up there. Added these where I was most concerned — one at the lower level and one at the upper — and you can really feel the draft now. Made a huge difference! Installed them all within minutes — so easy to do yourself. Just make sure to add them in between each beam for the best results and proper airflow. Highly recommend trying these before spending on any expensive roofing work. ✅ Quick and easy DIY install ✅ Cost-effective loft ventilation ✅ Prevents costly condensation damage

In the winter we've had terrible problems in our loft with condensation, often ruining lots of items stored up there. We're looked at different options to resolve this like installing air bricks etc, all of which seemed costly. On the off chance I thought I'd check Amazon for any solutions and came across these. I read through the reviews and say many people saying they bought 2-3 packs. We have a fairly large loft, but I thought I'd start with one pack first to see if they make a difference, and then maybe invest in more. They are very simple to install, literally just slot the in the gaps of the roof membrane. As soon as you start putting them in you can feel the air starting to circulate, it's really surprising. As we only had one pack I just randomly spread them out, and placed some at different heights. The difference just a single pack of these has made has been amazing. We've had some really cold weather since, and I haven't seen any condensation since installing these. Previously, we would see lines of soaking wet floor boards, and items with pools of water sitting on them (we used to cover everything with old bin bags to protect them). These have been so effective, that I don't think we even need any additional packs. If you have any condensation issues in your loft, I highly recommend these, and they are incredible value for money.

I ordered these as I discovered a serious condensation problem on the roof felt during the cold spell in December. Water was literally dripping on to the insulation and the small boarded area. In September we'd added another layer of insulation, which I believe may have contributed to the issue. Having never previously heard of lap vents, I thought I'd order some after reading positive reviews. Very easy to install, they worked really well and quickly. I wasn't sure if that was down to the increase in temperature when the cold spell ended so I thought I'd wait until the next freezing weather to see what happened. The weather is currently freezing and I'm pleased to say that there is very little condensation up there. Probably a 90% improvement on the original situation.

This product is ann excellent solution to a badly-ventilated loft. Previously, despite built-in vents under the eaves, the loft was slightly damp all year round, and in winter there was a problem with condensation. These felt-lap vents have been in place for ten months now and have improved the airflow in the loft dramatically. There was a noticeable improvement within a week even though they were installed in the winter. After a month there was no more dampness in the loft, and since then the space continues to be completely dry. I placed them between every second rafter and mirrored them front and rear of the roof, i.e. directly opposite each other. This seems to have created a good airflow without drafts. The vents are good value, well designed, quick and easy to fit, and very effective indeed. Highly recommended

Cured condensation in my loft very easy to slot in

I installed these felt lap vents over a year ago, and they’ve been a total lifesaver for my loft. I used to deal with constant dampness and "attic rain" every winter, but since sliding these in, the space has stayed bone-dry through every season. They were a breeze to fit—no tools needed, just popped them between the felt laps—and despite the wind and weather over the last twelve months, they haven't budged or throttled the airflow. It’s such a cheap, simple fix that actually works long-term, saving me a fortune on what I thought would be an expensive roofing job.

Easy to install. Cleared up our condensation in no time

After being up in the attic I noticed alot of moisture droplets. After some research I put this down to airflow...or lack of it to be precise. It was a quick 10 minute job to get these installed (Inc getting the ladders and going in/out of the attic). I would say these have cleared up 95% of the moisture up there and to a level that I would consider "normal". I would highly recommend these as once they are in you can just forget about them.