£0.00

No products in the basket.

Bank Holiday Notice: Orders placed after 2:00 PM on Friday, August 23rd, will be shipped on Tuesday, August 27th.

BANK HOLIDAY HOURS
We are Closed Monday 31st August - Any Orders Placed After 2pm 27th August will be Dispatched Tuesday 1st September

(or £5.99 Delivery Charge)

£0.00

No products in the basket.

(or £5.99 Delivery Charge)

BANK HOLIDAY HOURS
We are Closed Monday 31st August - Any Orders Placed After 2pm 27th August will be Dispatched Tuesday 1st September
FREE Next Working Day
Delivery over £80*

Home Shop Roof Vents Felt Lap Vents Timloc Underlay Felt Lap Vent (Pack of 10)
Product SKU: TIM556010

Timloc Underlay Felt Lap Vent (Pack of 10)

£21.42incl VAT.
£17.85excl VAT.
In Stock

Improve loft ventilation and reduce condensation with the Timloc Felt Lap Vent Pack of 10. These easy-to-install vents create airflow between roofing felt laps, helping moisture escape from roof spaces. Suitable for 400-600mm rafter spacing, each vent provides 3000mm² of additional airflow, making them ideal for loft insulation upgrades, roof refurbishments and condensation control projects.

Frequently Bought Together:
Predator Atlantic Waterproof Gloves, Red
-
+
From: £2.21 Incl VAT £1.84 Excl VAT
Total Price
£21.42 Incl VAT
£17.85 Excl VAT

Free Next Working Day Delivery on orders over £80*

*this does not include lead, felt support trays or ladder orders.

Timloc Felt Lap Vent Pack of 10

Effective Loft Ventilation Solution for Roof Condensation Problems

The Timloc Felt Lap Vent Pack of 10 provides a simple yet highly effective way to improve airflow within existing roof spaces. By opening the lap joints in roofing felt or roof membranes, these vents encourage fresh air to circulate through the loft space and help reduce condensation and moisture build-up.

As a result, the Timloc Felt Lap Vent protects roof timbers, insulation and roofing materials from moisture-related damage. Furthermore, you can fit the vents into existing roofs, making them an excellent choice for lofts where additional insulation has increased the risk of condensation.

Whether you work as a roofing contractor, builder or homeowner, these easy-to-fit lap vents offer a cost-effective way to improve roof space ventilation without making major changes to the roof structure.

Why Choose Timloc Felt Lap Vents?

Condensation within roof voids often causes mould growth, damp patches and timber deterioration. Therefore, every roof space needs adequate ventilation. Timloc developed the Felt Lap Vent to improve existing airflow by opening felt laps and creating a pathway for trapped moisture to escape.

Moreover, you can complete installation quickly and easily. Simply slot each vent between the roofing felt laps and secure it with the two integrated spring clips. Consequently, you can improve roof ventilation without specialist tools or extensive roofing work.

In addition, the discreet low-profile design keeps the vents hidden within the roof structure while maintaining excellent ventilation performance. Therefore, both professional roofers and DIY users choose Timloc Felt Lap Vents for loft ventilation upgrades.

Key Features & Benefits

  • Helps combat condensation in cold roof spaces
  • Improves loft ventilation by separating roofing felt laps
  • Suits refurbishment and existing roof space projects
  • Allows retrospective installation after loft insulation upgrades
  • Delivers 3000mm² additional free airflow per vent
  • Fits rafter spacings from 400mm to 600mm centres
  • Offers quick and straightforward installation
  • Uses two integrated spring clips for secure fixing
  • Features a discreet low-profile design
  • Uses durable recycled polypropylene construction
  • Includes 10 vents per pack
  • Meets BS EN 9001 and BS EN 14001 standards

Ideal Applications

The Timloc Lap Vent supports a wide range of roofing projects that require additional roof space ventilation.

Perfect for:

  • Existing loft spaces
  • Roof refurbishment projects
  • Cold roof constructions
  • Condensation control measures
  • Loft insulation upgrades
  • Domestic roofing projects
  • Residential property maintenance
  • Professional roofing installations

As a result, homeowners and contractors can improve airflow and reduce moisture-related roofing problems with minimal effort.

Technical Specification

  • Product Code: 5560
  • Height: 19mm
  • Width: 280mm
  • Length: 205mm
  • Material: Injection Moulded Recycled Polypropylene
  • Colour: Off White
  • Ventilation Area: 3000mm² additional free vent area per vent
  • Suitable Rafter Spacing: 400mm – 600mm Centres
  • Pack Quantity: 10 Vents

Installation Advice

For standard roof ventilation improvements, fit one lap vent into every alternate rafter space at low level on both sides of the roof. However, if you need additional airflow, install extra vents higher up the roof or within every rafter space.

Additionally, use lap vents as part of a complete roof ventilation system rather than as a replacement for eaves or ridge ventilation. Therefore, combine them with existing ventilation products to achieve the best results.

Trusted Timloc Quality

Timloc Building Products manufactures high-quality roofing and ventilation products for the UK construction industry. Consequently, roofing professionals continue to specify the Timloc Felt Lap Vent as a trusted solution for improving loft ventilation and reducing condensation in existing roof spaces.

If you need a simple, reliable and cost-effective way to increase roof ventilation and control condensation, the Timloc Felt Lap Vent Pack of 10 delivers an excellent solution.

Additional information

Height

19mm

Brand

Width

280mm

Length

205mm

Airflow

3000mm2

Colour

White

Pack of

10

Technical Data Sheet

Product Information

Height

19mm

Brand

Width

280mm

Length

205mm

Airflow

3000mm2

Colour

White

Pack of

10

Technical Data Sheet

Related Products

Recommended products

  • Easy-Trim Universal Dry Verge System - Brown

    Easy-Trim Universal Dry Verge System – Brown

    £1.19 Incl VAT £0.99 Excl VAT
    Add to basket
  • Easy-Trim Universal Dry Verge System - Grey

    Easy-Trim Universal Dry Verge System – Grey

    £1.19 Incl VAT £0.99 Excl VAT
    Add to basket
  • Easy-Trim Universal Dry Verge Unit - Black

    Easy-Trim Universal Dry Verge Unit – Black

    £1.19 Incl VAT £0.99 Excl VAT
    Add to basket
  • This image displays the front of the product which is a Hedgehog Gutter Brush Leaf Black

    Hedgehog Gutter Brush Leaf Guard Black – 4m x 100mm

    £12.67 Incl VAT £10.56 Excl VAT
    Add to basket
  • Sika Stixall Extreme Power – Clear 290ml

    Sika Stixall Extreme Power – Clear 290ml

    £5.01 Incl VAT £4.18 Excl VAT
    Add to basket
  • 5x Felt Trays - 1.5m

    Felt Support Tray – 1.5m

    £2.13 Incl VAT £1.78 Excl VAT
    Add to basket