Order Helpline 01752 692 760
Order Helpline 01752 692 760

Danelaw Black Roofing Felt Lap Vent

Code:
HD ULV

Made from durable black PVC, this Hambleside Danelaw Black Roofing Felt Lap Vent features a shallow and tapered design and offers 2,280mm² airflow per vent. It is suitable for professional and DIY installation, retrofitted from the inside of cold pitched roofs and lofts to lim...Read More

£1.39 Incl. VAT
Oops! Please select from the options
Est. Delivery: 1-2 Working Days
Shipping costs displayed in basket.
We can let you know when this product is back in stock.

This product is proving to be very popular and has unfortunately sold out.

Enter your email below and we'll notify you as soon as this product is back in stock:

For delivery Wednesday, Apr 3rd - order in:
days hrs mins secs
Subject to stock availability, if products on a 24 hours service are ordered alongside products NOT on a 24 hours service, this may delay your whole order.
View Transport Policy

All delivery charges are included in the final shopping basket and are dependent on the products Scottish Highlands & the Islands where additional shipping charges will apply.

Please note that not all products will incur an additional delivery charge to the Scottish Highlands & the Islands – this is based on the costs from the manufacturer, distributor or courier providing shipping on our behalf. If your delivery address is in the Scottish Highlands and Islands, a member of our helpline team will contact you prior to processing your order should an additional delivery charge apply.

While we make every effort to ensure orders are delivered by the date required, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules.

Any variation to web delivery date given will be advised to you by email or telephone. If we are unable to make delivery because access is not possible, we reserve the right to make a failed delivery charge.

Create a wishlist

"good product and quick delivery."

PHILIP DIMENT

Description

Made from durable black PVC, this Hambleside Danelaw Black Roofing Felt Lap Vent features a shallow and tapered design and offers 2,280mm² airflow per vent. It is suitable for professional and DIY installation, retrofitted from the inside of cold pitched roofs and lofts to limit condensation where it proves an issue.

This vent is easy to fit, slotting between the overlaps in the roofing underlay beneath tiles or slates. It establishes ventilation openings where roof spaces lack proper provision for ventilation or where existing ventilation air paths are blocked, particularly when loft insulation is upgraded. The shallow and tapered design is compatible with frequently encountered rafter spacings and ensures easier fitting between the roofing felt or underlay where overlaps are tight.

Features & Benefits: Danelaw Black Roofing Felt Lap Vent

  • Made from durable black PVC
  • 2,280mm² airflow per vent
  • For professional and DIY installation from inside cold pitched roofs and lofts
  • Retrofitted to limit condensation
  • Establishes ventilation openings where roof spaces lack ventilation or air paths are blocked
  • Shallow, tapered design suits frequently encountered rafter spacings and ensures easier fitting

Application

  • It is advised to fit one ventilator panel between each rafter in the lowest underlay lap above the level of the insulation layer in the loft on both sides of the roof (product brochure fig. 1). For rafter centres of 600mm and above, the provided ventilation area can be expanded by installing two panels between each rafter. Trim these panels along the dotted line and overlap them by interlocking the first spacing rib (product brochure fig. 2).
  • Where severe condensation is present or where the distance between eaves exceeds 10m (30ft) in large roofs, or where the roof pitch is steeper than 35°, fit an extra row of ventilation panels into the highest line of roofing felt or underlay lap closest to the ridge on both sides of the roof. Fully insert panels with the ribs uppermost and the two retaining tabs locating over the exposed edge of the roofing underlay.
  • Following installation, monitor condensation levels. If they persist, it is suggested you fit an extra row of ventilation panels between the next lowest roofing underlay overlap on both sides of the roof.

Please note:

  • This product guarantees a minimum ventilation area of 5700mm² per linear metre at 400mm rafter centres and 5060mm² per linear metre at 450mm rafter centres.
  • The 600mm single panel provides a minimum ventilation area of 3810mm² per linear metre, and the 600mm double panel offers a minimum of 6270mm² per linear metre.

There are no product specifications to show.

Questions & Answers

Question:

My rafters are (unevenly) spaced at less than 300 mm. What is the top width when the product is cut down along the trim lines?

Answer:

Yes, thats correct

Question:

Hi What is the cost if you order 50 please and if Danelaw are away until early Jan can you send some before that or do you just get them to send them when you get an order? I'm trying to find some sooner. Thank you P Brown

Answer:

A quote will be sent to you.

 

The lead time for delivery is 10-15 days

Question:

Do you do an NHS discount?

Answer:

Im sorry but we dont 

Question:

I’ve bought the other type but no way will they slide behind the felt. I don’t want to buy these if they won’t slide in place. It is very tight so I need a thinner gap. What gap do these ones have? How many mm?

Answer:

These will not fit if the felt is too tight - you need more room than the smaller units we sell

Question:

What size is this product. I’m sure you have it somewhere but i cant find it.

Answer:

The top width is 350mm and the bottom width is 310mm

The sides are 225mm

Question:

How many of these felt lap vents are in a box Or are they £4.20 each ?

Answer:

This is the price per unit, but if you order 50 or more the price drops down.

Reviews

loading...

Product Enquiry Form

Danelaw Black Roofing Felt Lap Vent

*Required Field