12 x Felt Lap Vents, Loft Vents for Condensation, Roof Ventilation Lap Vents, Felt Lap Vents Prevents Loft Roof Condensation, Keep Attic Space Ventilation Airflow

These lap vents are a simple yet effective solution for improving loft ventilation. The pack of 12 covers a good area, and each vent provides strong airflow—exactly what I needed to tackle condensation in the winter months. Since installing them, the loft feels much drier and there’s been a noticeable drop in dampness.They’re easy to fit—just push them into the felt joins without needing special tools. The arched design feels sturdy and fits neatly between joists, even in tighter spaces. I also appreciate that they work with standard joist centres (400mm to 600mm), which suited my roof perfectly.If you're struggling with loft moisture or poor airflow, these vents are a cost-effective fix. Highly recommended for keeping your attic space dry and better ventilated.

I was sceptical if these would even work to start with but they're great! I put them in before adding top up insulation into the loft. If I didn't I would've struggled with breathing and probably melt up there with a respirator and over all on. They were the cheapest and also on an offer when I bought them. Very sturdy and allow plenty of air into the loft. Fit perfectly in the felt of alternating rafters (odd numbers on one side and even numbers on the other). I'll definitely be ordering more when I insulate the remainder of the house.

Great value, the quality feels great too. I can't comment on the quality of use as we've not had them long enough. My husband did say they're easy to fit from inside the loft

We had a loft space with dripping condensation. Within two days of fitting these vents the problem had cleared and we have had no condensation since. The vents are very easily and quickly fitted by slotting between the joins of the roofing felt and have provided ample ventilation to the roof space. Excellent product, does the job well. Very pleased.

Bought 12 of these to try and help our loft dry out. We had a PIV fan installed but the loft was soaked with condensation almost overnight the loft dried up. Surprising how something so cheap and simple makes such a difference. Saves on membranes and thousands of pounds of work to keep it all dry.

Not a bad product, does the job. But they are a bit small and flimsy.

Easy to install between the felt laps and they made an instant difference to reduce the attic condensation which occurred after tripling the insulation which prevented the eaves. VentilationSuccess.I wouldn’t have realised there was condensation in the underside of the felt and on the timber had it not been for accessing the attic to recover some suitcases as we have partially boarded the space for storage.

Installed these in roof above daughters room seems to have worked giving good ventilation , really easy to install