£21.35

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

_SML

Price data last checked 115 day(s) ago - refreshing...

View at Amazon

We'll watch every seller, every day. One email when your price arrives.

This is the usual price. Wait for it to drop, or tell us your number.

£21 today · usual range £0–£0 · best ever £20

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey
↓ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 616 days • 616 data points (No recent data available)

Historical
Generating forecast...
£24.95 £19.49 £20.68 £21.87 £23.07 £24.26 £25.45 11 June 2024 11 November 2024 14 April 2025 15 September 2025 16 February 2026

Price Distribution

Price distribution over 616 days • 5 price ranges

Days at Price
Current Price
20 days 126 days · current 404 days 53 days 13 days 0 101 202 303 404 £20-21 £21-22 £22-23 £23-24 £24-25 Days at Price

Price Analysis

Most common range: £22-23 (404 days, 65.6%)

Price range: £20 - £25

Price levels: 5 price ranges over 616 days

Description

Felt Lap Vent Prevents Roof Condensation Pack of 10 Prevents roof condensation and moisture drops. Easy to fit just slots between the felt laps. Can be installed from inside of loft. The 3 felt clips secure the product in place even if the felt is degraded of loose. Can be fitted between 400mm joists and 600mm joist openings. Provides 3000mm² air flow per unit. Felt lap dimensions 275mm x 190mm Meets building regulations. The Manthorpe Felt Lap Vent is a refurbishment product designed to increase the amount of ventilation into existing roof spaces. Usually fitted retrospectively to properties with additional loft insulation recently installed, however the Felt Lap Vent will help to combat the problem of condensation build up in any roof space with a lapped felt/membrane construction.

Key Features

Felt Lap Vent Prevents Roof Condensation

Pack of 10

Easy to fit just slots between the felt laps.

Prevents roof condensation and moisture drops.

Can be installed from inside of loft

Product Specifications

Model
_SML
Format
DIY & Tools
Domain
Amazon UK
Listed Since
11 March 2021

Barcode

No barcode data available

Similar Products You Might Like

Felt Lap Vents for Condensation Pack of 12 Roof Ventilation Lap Vents, Prevents Roof Loft Roof Condensation Airflow Lap Vents (Pack of 12)
98% match

Felt Lap Vents for Condensation Pack of 12 Roof Ventilation Lap Vents, Prevents Roof Loft Roof Condensation Airflow Lap Vents (Pack of 12)

HowseHold

£15.99 26 Jan 2026
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
98% match

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

4BAOHUI

£16.99 21 Feb 2026
4BAOHUI 22 Felt Lap Vents - Roof & Loft Ventilation, Moisture Control
98% match

4BAOHUI 22 Felt Lap Vents - Roof & Loft Ventilation, Moisture Control

4BAOHUI

Out of Stock 22 Feb 2026
Felt Lap Vents for Condensation Pack of 24 Roof Ventilation Lap Vents, Prevents Roof Loft Roof Condensation Airflow Lap Vents (Pack of 24)
97% match

Felt Lap Vents for Condensation Pack of 24 Roof Ventilation Lap Vents, Prevents Roof Loft Roof Condensation Airflow Lap Vents (Pack of 24)

HowseHold

£27.99 23 Feb 2026
Green Loft 8m Roll 370x110mm - Non-Itch, Moisture Resistant DIY Loft Insulation
95% match

Green Loft 8m Roll 370x110mm - Non-Itch, Moisture Resistant DIY Loft Insulation

Green Loft

£33.92 17 Feb 2026
Breathable Membrane/Roof Felt 1m x 50m Roofing Felt Roll Under Tile 100GSM for Sheds + Beneath Tiles - Slated Pitched Roofs
95% match

Breathable Membrane/Roof Felt 1m x 50m Roofing Felt Roll Under Tile 100GSM for Sheds + Beneath Tiles - Slated Pitched Roofs

ASTON BUILDING SUPPLIES LTD

£34.99 11 Feb 2026
sourcing map 10Pcs 35mm/1.4in Air Vents Circular Soffit Vents, Black Plastic Soffit Vent Cover for Bathroom Home, Office, Kitchen, Cabinet, Wardrobe
94% match

sourcing map 10Pcs 35mm/1.4in Air Vents Circular Soffit Vents, Black Plastic Soffit Vent Cover for Bathroom Home, Office, Kitchen, Cabinet, Wardrobe

sourcing map

£5.59 23 Jan 2026
YBS Essentials Loft Wrap Bubble Foil Insulation Roll | 400mm x 20m, 3.5mm Thickness | DIY 3-in-1 Thermal Reflective Insulation
94% match

YBS Essentials Loft Wrap Bubble Foil Insulation Roll | 400mm x 20m, 3.5mm Thickness | DIY 3-in-1 Thermal Reflective Insulation

YBS Insulation

Out of Stock 06 Feb 2026
ThermaWrap 1500mm x 7.5m x 3.8mm Insulating Wrap Easy Install Bubble Foil Insulation Ideal for Attics, Lofts, Floors, Sheds, Caravans, Boats, Greenhouses, Pet Homes and Garages- High Quality Aluminium Foil Reflective Layers for Maximum Heat Retention and Energy Saving
94% match

ThermaWrap 1500mm x 7.5m x 3.8mm Insulating Wrap Easy Install Bubble Foil Insulation Ideal for Attics, Lofts, Floors, Sheds, Caravans, Boats, Greenhouses, Pet Homes and Garages- High Quality Aluminium Foil Reflective Layers for Maximum Heat Retention and Energy Saving

ThermaWrap

Out of Stock 08 Feb 2026
Nuaire Drimaster DRI-ECO-HC Condensation Ventilation Loft Unit (Hall Control) - Latest Model
94% match

Nuaire Drimaster DRI-ECO-HC Condensation Ventilation Loft Unit (Hall Control) - Latest Model

Nuaire

£334.98 29 Jan 2026
Repa Market 5 Inch / 125mm Exhaust Hood Vent with Rain Cover – Anthracite ABS Plastic Wall Air Vent Cover – Exterior Outlet Grille for Indoor & Outdoor Use – HVAC Dryer Extractor Ventilation
94% match

Repa Market 5 Inch / 125mm Exhaust Hood Vent with Rain Cover – Anthracite ABS Plastic Wall Air Vent Cover – Exterior Outlet Grille for Indoor & Outdoor Use – HVAC Dryer Extractor Ventilation

Repa Market

£21.95 01 Feb 2026
Hon&Guan 8 Inch Air Vent Covers, ABS Adjustable Soffit Vent, 200mm Round Ceiling Diffuser for Exhaust Fan, Inline Duct Fan
94% match

Hon&Guan 8 Inch Air Vent Covers, ABS Adjustable Soffit Vent, 200mm Round Ceiling Diffuser for Exhaust Fan, Inline Duct Fan

Hon&Guan

Out of Stock 27 Jan 2026
Ø 125mm / 5'' Cowled Duct Cover with Gravity Flap - Ventilation Grille with Rain and Wind Protection - External Air Vent Covers - ABS Plastic Grey
94% match

Ø 125mm / 5'' Cowled Duct Cover with Gravity Flap - Ventilation Grille with Rain and Wind Protection - External Air Vent Covers - ABS Plastic Grey

EUROPLAST

£13.69 27 Jan 2026
Ø 125mm / 5'' Cowled Duct Cover with Gravity Flap - Ventilation Grille with Rain and Wind Protection - External Air Vent Covers - ABS Plastic White
94% match

Ø 125mm / 5'' Cowled Duct Cover with Gravity Flap - Ventilation Grille with Rain and Wind Protection - External Air Vent Covers - ABS Plastic White

EUROPLAST

£9.90 01 Feb 2026
5-Pack 5'' x 12'' Inch / 130 x 300 mm Plastic White - Vent Cover - Rectangular Duct Cover - Air Vent Louver - Protective Screen Mesh - HVAC Ventilation
94% match

5-Pack 5'' x 12'' Inch / 130 x 300 mm Plastic White - Vent Cover - Rectangular Duct Cover - Air Vent Louver - Protective Screen Mesh - HVAC Ventilation

Repa Market

£19.95 28 Jan 2026
5 Pack - 4'' Inch / 100 mm Plastic Vent Cover Black - Round Soffit Vent - Exhaust Ventilation Louver - Air Inlet Grille Cover - Built-in Screen Mesh - HVAC Ventilation
94% match

5 Pack - 4'' Inch / 100 mm Plastic Vent Cover Black - Round Soffit Vent - Exhaust Ventilation Louver - Air Inlet Grille Cover - Built-in Screen Mesh - HVAC Ventilation

Repa Market

£16.95 28 Jan 2026
Generisch Reflective Waterproof Roof Fan Covers - 2 Sizes
94% match

Generisch Reflective Waterproof Roof Fan Covers - 2 Sizes

Generisch

£12.99 27 Feb 2026
12" x 2" Inch / 300 x 50 mm White Air Vent Cover - Steel Return Air Grilles - for Ceiling and Sidewall - HVAC - with Insect Protection Screen (11.81 x 1.97 Inch, White)
94% match

12" x 2" Inch / 300 x 50 mm White Air Vent Cover - Steel Return Air Grilles - for Ceiling and Sidewall - HVAC - with Insect Protection Screen (11.81 x 1.97 Inch, White)

Repa Market

£9.95 20 Apr 2026
VEVOR 2 PCs Roof Pipe Flashing Boots, Fit Pipe OD 6-1/4" - 11-3/4", Flexible Silicone Roofing Jack Pipe Flashing, High Temp -101℉ - 437℉, Square Metal Base, for Chimney, Wood Stove & Outdoor Vent Pipe
94% match

VEVOR 2 PCs Roof Pipe Flashing Boots, Fit Pipe OD 6-1/4" - 11-3/4", Flexible Silicone Roofing Jack Pipe Flashing, High Temp -101℉ - 437℉, Square Metal Base, for Chimney, Wood Stove & Outdoor Vent Pipe

VEVOR

£41.99 17 Feb 2026
GB DIY Store 5 x uPVC Window Trickle Slot Vent White 300mm White - Reduces Condensation, Damp & Steam (5 Pack)
94% match

GB DIY Store 5 x uPVC Window Trickle Slot Vent White 300mm White - Reduces Condensation, Damp & Steam (5 Pack)

GB DIY Store

£13.40 05 Feb 2026
Earthwool 10x Knauf 44 Loft Rolls - 200mm, 68.4m2 Coverage
94% match

Earthwool 10x Knauf 44 Loft Rolls - 200mm, 68.4m2 Coverage

Earthwool

£367.84 11 Feb 2026
2-Pack 10'' x 10'' Inch / 250 x 250 mm Plastic Brown - Vent Cover - Square Duct Cover - Air Vent Louver - Protective Screen Mesh - HVAC Ventilation
94% match

2-Pack 10'' x 10'' Inch / 250 x 250 mm Plastic Brown - Vent Cover - Square Duct Cover - Air Vent Louver - Protective Screen Mesh - HVAC Ventilation

Repa Market

Out of Stock 26 Jan 2026
Vents 4 inch 100 mm Black Plastic Fixed Blade Grille with Fly Mesh 4 inch Rear Spigot for Internal External Air Vent Cover Wall Ceiling Mounting Louvre Grill Insect Screen Bathroom Ventilation
94% match

Vents 4 inch 100 mm Black Plastic Fixed Blade Grille with Fly Mesh 4 inch Rear Spigot for Internal External Air Vent Cover Wall Ceiling Mounting Louvre Grill Insect Screen Bathroom Ventilation

VENTS UK

£8.99 26 Jan 2026
Repa Market 2-Pack Plastic Vent Cover 10x7in Square Duct Louver
94% match

Repa Market 2-Pack Plastic Vent Cover 10x7in Square Duct Louver

Repa Market

£9.95 27 Jan 2026